1
|
Yang Y, Li Y, Liu W, Niu X. Precise single column resection and reconstruction with femoral head plus total hip replacement for primary malignant peri-acetabulum tumors. Sci Rep 2024; 14:3412. [PMID: 38341503 PMCID: PMC10858889 DOI: 10.1038/s41598-024-52019-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 01/12/2024] [Indexed: 02/12/2024] Open
Abstract
To evaluate whether single acetabular column can be reserved and the effect of reconstruction with femoral head plus total hip replacement (THR) for primary malignant peri-acetabulum tumors. From 2007 to 2015, nineteen patients with primary malignant peri-acetabulum tumors were enrolled. All cases underwent single column resection with clear surgical margins. Ten of the 19 tumor's resections were assisted by computer navigation. Femoral heads were applied to reconstruct anterior or posterior column defects; THR was used for joint reconstruction. The surgical safety, oncologic outcome and prosthesis survivorship and function were evaluated by regular follow-up. The average follow-up period was 65.9 months. Surgical margins contained wide resection in 12 cases and marginal resection in 7 cases. One patient with Ewing's sarcoma died 14 months postoperative due to lung metastasis. One case with chondrosarcoma had recurrence. One prosthesis was removed due to infection. The average MusculoSkeletal Tumor Society (MSTS) function score was 83.7%. Due to the relative small number of cases, there was no significant difference in the recurrence rate and prosthesis failure rate between the navigation group and non-navigation group. Single column resection and reconstruction with femoral head autograft plus THR is an effective, safe method with less complication rate and better functional outcome for patients with peri-acetabular tumors.
Collapse
Affiliation(s)
- Yongkun Yang
- Department of Orthopedic Oncology Surgery, Beijing Ji Shui Tan Hospital, Peking University, Beijing, People's Republic of China.
| | - Yuan Li
- Department of Orthopedic Oncology Surgery, Beijing Ji Shui Tan Hospital, Peking University, Beijing, People's Republic of China
| | - Weifeng Liu
- Department of Orthopedic Oncology Surgery, Beijing Ji Shui Tan Hospital, Peking University, Beijing, People's Republic of China
| | - Xiaohui Niu
- Department of Orthopedic Oncology Surgery, Beijing Ji Shui Tan Hospital, Peking University, Beijing, People's Republic of China
| |
Collapse
|
2
|
Budi MNS, Alpharian GT, Primayudha B, Siwendro AB, Setiadi C. Combination of frozen autograft produced with liquid nitrogen and total hip replacement as a bone recycle reconstruction in pelvic osteosarcoma resection type 2: A case report. Int J Surg Case Rep 2023; 111:108760. [PMID: 37690278 PMCID: PMC10507207 DOI: 10.1016/j.ijscr.2023.108760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 09/12/2023] Open
Abstract
INTRODUCTION Pelvic osteosarcoma remains a challenge for orthopedic surgeons to manage. However, recent advances giving various options to get a more effective reconstruction method. We present bone recycle reconstruction using a combination of frozen autograft and total hip replacement (THR) following extraarticular resection type II of pelvic osteosarcoma. PRESENTATION OF CASE A 31-year-old female presented with pain in sitting and standing positions with no lump noted in the right hip joint for 11 months. Physical examination showed a palpable mass with indistinct margin in the inner groin area, with a limited range of motion. Histopathological examination confirmed small-cell osteosarcomaa. Extraarticular pelvic resection type 2 was performed followed by cryo-procedure using liquid nitrogen to produce frozen autograft. The graft was implanted and fixated with 3 reconstruction plates and screws, followed by THR. Postoperative plain radiographs showed the graft and implants were well-placed and fixated. There was no postoperative complication, local recurrence, or metastasis observed. The patient started to sit in the wheelchair without pain and walk using crutches. DISCUSSION Following resection of the hemi pelvic, various alternative reconstruction procedures such as pseudoarthrosis, arthrodesis, mega prostheses, massive allograft, and cryosurgery were attempted, but still dissatisfying which results in numerous complications. Expensive cost reconstruction makes it difficult to be performed in developing country like Indonesia. CONCLUSION A combination of frozen autograft and THR following pelvic resection achieve a cost-effective and desirable outcome which gives a good result in short-term follow-up. It could be a promising option for managing oncology cases.
Collapse
Affiliation(s)
- Muhamad Naseh Sajadi Budi
- Orthopaedics and Traumatology Department, Hasan Sadikin Hospital Padjajaran University, Bandung, Indonesia.
| | - Gibran Tristan Alpharian
- Orthopaedics and Traumatology Department, Hasan Sadikin Hospital Padjajaran University, Bandung, Indonesia
| | - Bangkit Primayudha
- Orthopaedics and Traumatology Department, Hasan Sadikin Hospital Padjajaran University, Bandung, Indonesia
| | - Afrisya Bimo Siwendro
- Orthopaedics and Traumatology Department, Hasan Sadikin Hospital Padjajaran University, Bandung, Indonesia
| | - Christian Setiadi
- Orthopaedics and Traumatology Department, Hasan Sadikin Hospital Padjajaran University, Bandung, Indonesia
| |
Collapse
|
3
|
Laitinen MK, Parry MC, Morris GV, Jeys LM. Pelvic bone sarcomas, prognostic factors, and treatment: A narrative review of the literature. Scand J Surg 2023; 112:206-215. [PMID: 37438963 DOI: 10.1177/14574969231181504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Primary sarcomas of bone are rare malignant mesenchymal tumors. The most common bone sarcomas are osteosarcoma, Ewing's sarcoma, and chondrosarcoma. The prognosis has improved over the years, but bone sarcomas are still life-threatening tumors that need a multidisciplinary approach for diagnosis and treatment. Bone sarcomas arising in the pelvis present a unique challenge to orthopedic oncologists due to the absence of natural anatomical barriers, the close proximity of vital neurovascular structures, and the high mechanical demands placed on any pelvic reconstruction following the excision of the tumor. While radiotherapy has an important role especially in Ewing's sarcoma and chemotherapy for both Ewing's sarcoma and osteosarcoma, surgery remains the main choice of treatment for all three entities. While external hemipelvectomy has remained one option, the main aim of surgery is limb salvage. After complete tumor resection, the bone defect needs to be reconstructed. Possibilities to reconstruct the defect include prosthetic or biological reconstruction. The method of reconstruction is dependent on the location of tumor and the surgery required for its removal. The aim of this article is to give an insight into pelvic bone sarcomas, their oncological and surgical outcomes, and the options for treatment based on the authors' experiences.
Collapse
Affiliation(s)
- Minna K Laitinen
- Helsinki University Hospital and University of Helsinki Helsinki Finland Bridge Hospital Haartmaninkatu 4 PL 370 00029 HUS
- The Royal Orthopaedic Hospital, Birmingham, UK
| | - Michael C Parry
- The Royal Orthopaedic Hospital, Birmingham, UK
- The Royal Orthopaedic Hospital, Birmingham, UK
| | - Guy V Morris
- The Royal Orthopaedic Hospital, Birmingham, UK
- The Royal Orthopaedic Hospital, Birmingham, UK
| | - Lee M Jeys
- The Royal Orthopaedic Hospital, Birmingham, UK
| |
Collapse
|
4
|
Atzmon R, Drexler M, Dolkart O, Goldstein Y, Dubin J, Sternheim A, Gortzak Y, Bickels J. Less is better than more with resection of periacetabular tumors - A retrospective 16 years study and literature review. Front Surg 2022; 9:1036640. [PMID: 36570805 PMCID: PMC9772449 DOI: 10.3389/fsurg.2022.1036640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 11/21/2022] [Indexed: 12/13/2022] Open
Abstract
Introduction Wide resections of periacetabular tumors create a sizeable bony defect that inevitably results in severe loss of function. Reconstruction of such defects usually requires using large metal implants, a feature associated with considerable surgery extension and complications. The aim of this study is to report resection with no reconstruction of the bony defect. In this retrospective study, we reviewed a consecutive series of 16 patients diagnosed with malignant periacetabular tumors and underwent en-bloc resection without reconstructing their remaining bone defect. Methods Records were reviewed of 16 consecutive patients diagnosed with malignant periacetabular tumors and underwent en-bloc resection without reconstructing their remaining bony defect. Measurements included: the duration of surgery, blood loss, hemoglobin levels and the need for blood transfusions, data on other hospitalization characteristics, and intraoperative and postoperative complications. Results Sixteen patients with malignant periacetabular bone tumors and extensive bone destruction underwent wide periacetabular tumor resection with a mean follow-up of 75 months and a mean age of 53 years. The average HOOS score was 46 (range: 20 to 76), and the mean MSTS score was 13% (range: 0 to 15). The mean operative time was 4.1 h, and the mean blood loss was 1200 ml. At their most recent follow-up, patients had a mean shortening of their operated extremity of 4.8 cm, and all could ambulate with assisting devices. Conclusion Wide resection of periacetabular tumors without reconstruction provides acceptable levels of function and was associated with shorter surgical time, less blood loss and fewer postoperative complications compared to resection with reconstruction. Therefore, this approach may be considered a viable surgical option in patients with an extensive malignant periacetabular. Level III Retrospective study.
Collapse
Affiliation(s)
- Ran Atzmon
- Orthopedic Department, Assuta Ashdod Medical Center, Ashdod, Israel, affiliated to Beer Sheva Faculty of Medicine, Beer Sheva University, Israel
| | - Michael Drexler
- Orthopedic Department, Assuta Ashdod Medical Center, Ashdod, Israel, affiliated to Beer Sheva Faculty of Medicine, Beer Sheva University, Israel,Correspondence: Michael Drexler
| | - Oleg Dolkart
- Orthopedic Department, Assuta Ashdod Medical Center, Ashdod, Israel, affiliated to Beer Sheva Faculty of Medicine, Beer Sheva University, Israel
| | - Yariv Goldstein
- Orthopedic Department, Assuta Ashdod Medical Center, Ashdod, Israel, affiliated to Beer Sheva Faculty of Medicine, Beer Sheva University, Israel
| | - Jeremy Dubin
- Division of Orthopedic Surgery, Tel Aviv Sourasky Medical Center, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Amir Sternheim
- The National Unit of Orthopedic Oncology, Tel Aviv Sourasky Medical Center, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yair Gortzak
- The National Unit of Orthopedic Oncology, Tel Aviv Sourasky Medical Center, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Jacob Bickels
- Hillel-Yaffe Medical Center, Orthopedic Oncology Unit, Department of Orthopaedic Surgery, Affiliated with the Technion - Israel Institute of Technology, Hadera, Israel
| |
Collapse
|
5
|
Zhu D, Wang L, Fu J, Guo Z, Wang Z, Fan H. Comparison of customized 3D-printed prosthesis and screw-rod-cage system reconstruction following resection of periacetabular tumors. Front Oncol 2022; 12:953266. [PMID: 36303843 PMCID: PMC9592706 DOI: 10.3389/fonc.2022.953266] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 09/22/2022] [Indexed: 11/13/2022] Open
Abstract
Background and purpose Various operative methods are used for reconstructing pelvic girdle after resection of primary malignant periacetabular tumor has been reported. The objective of this study was to evaluate the accuracy, effectiveness, and safety of customized three dimensional-printed prosthesis (3DP) in the reconstruction of bone defects compared with conventional reconstruction using the screw-rod-cage system. Methods A retrospective case–control analysis of 40 patients who underwent pelvic tumor resection and reconstruction with a customized 3D-printed prosthesis (3DP), or screw-rod-cage system (SRCS) between January 2010 and December 2019 was performed. The minimum follow-up time for patients alive was 2 years. Blood loss, operation time, complications, surgical margin, local recurrence, distant metastases, status at time of latest follow-up, MSTS-93 score, Harris hip score, and postoperative radiographic parameters were recorded. Moreover, overall survival, tumor-free survival, and prosthesis survival rates in both groups were compared. Results Customized 3DP reconstruction was performed in 15 patients, and SRCS reconstruction was done in 25 patients. The group of patients treated with customized 3DP reconstruction had significantly shorter operation time (323.7 ± 83.7 vs. 393.6 ± 98.8 min; P = 0.028) and more precise (all P < 0.05) radiographic reconstruction parameters than patients in the SRCS group. Fewer complications (P = 0.026), better MSTS score (P = 0.030), and better Harris hip score (P = 0.016) were achieved in the 3DP group. Furthermore, the survival rate of prosthesis was also significantly better in the 3DP group (P = 0.039). However, blood loss, surgical margin, local recurrence, distant metastases, and status at time of latest follow-up had no significant difference between two groups. Conclusion Compared with the screw-rod-cage system reconstruction, the customized 3D-printed prosthesis reconstruction is equally safe and effective, but it is more accurate and time-saving and is associated with fewer complications.
Collapse
Affiliation(s)
- Dongze Zhu
- Department of Orthopedic Surgery, Xi-jing Hospital, Fourth Military Medical University, Xi’an, China
| | - Lei Wang
- Department of Orthopedic Surgery, Xi-jing Hospital, Fourth Military Medical University, Xi’an, China
| | - Jun Fu
- Department of Orthopedic Surgery, Xi-jing Hospital, Fourth Military Medical University, Xi’an, China
| | - Zheng Guo
- Department of Orthopedic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi’an, China
| | - Zhen Wang
- Department of Orthopedic Surgery, Xi-jing Hospital, Fourth Military Medical University, Xi’an, China
| | - Hongbin Fan
- Department of Orthopedic Surgery, Xi-jing Hospital, Fourth Military Medical University, Xi’an, China
- *Correspondence: Hongbin Fan,
| |
Collapse
|
6
|
Qu H, Mou H, Wang K, Tao H, Huang X, Yan X, Lin N, Ye Z. Risk factor investigation for hip dislocation after periacetabular tumour resection and endoprosthetic reconstruction via thin-slice CT-based 3D model. Bone Joint J 2022; 104-B:1180-1188. [PMID: 36177644 DOI: 10.1302/0301-620x.104b10.bjj-2022-0265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS Dislocation of the hip remains a major complication after periacetabular tumour resection and endoprosthetic reconstruction. The position of the acetabular component is an important modifiable factor for surgeons in determining the risk of postoperative dislocation. We investigated the significance of horizontal, vertical, and sagittal displacement of the hip centre of rotation (COR) on postoperative dislocation using a CT-based 3D model, as well as other potential risk factors for dislocation. METHODS A total of 122 patients who underwent reconstruction following resection of periacetabular tumour between January 2011 and January 2020 were studied. The risk factors for dislocation were investigated with univariate and multivariate logistic regression analysis on patient-specific, resection-specific, and reconstruction-specific variables. RESULTS The dislocation rate was 13.9% (n = 17). The hip COR was found to be significantly shifted anteriorly and inferiorly in most patients in the dislocation group compared with the non-dislocation group. Three independent risk factors were found to be related to dislocation: resection of gluteus medius (odds ratio (OR) 3.68 (95% confidence interval (CI) 1.24 to 19.70); p = 0.039), vertical shift of COR > 18 mm (OR 24.8 (95% CI 6.23 to 128.00); p = 0.001), and sagittal shift of COR > 20 mm (OR 6.22 (95% CI 1.33 to 32.2); p = 0.026). CONCLUSION Among the 17 patients who dislocated, 70.3% (n = 12) were anterior dislocations. Three independent risk factors were identified, suggesting the importance of proper restoration of the COR and the role of the gluteus medius in maintaining hip joint stability.Cite this article: Bone Joint J 2022;104-B(10):1180-1188.
Collapse
Affiliation(s)
- Hao Qu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopaedics Research Institute, Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, China.,Diagnosis and Treatment Center of Bone Metastasis, Department of Orthopaedics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Haochen Mou
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopaedics Research Institute, Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, China.,Diagnosis and Treatment Center of Bone Metastasis, Department of Orthopaedics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Keyi Wang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopaedics Research Institute, Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, China.,Diagnosis and Treatment Center of Bone Metastasis, Department of Orthopaedics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Huimin Tao
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopaedics Research Institute, Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, China.,Diagnosis and Treatment Center of Bone Metastasis, Department of Orthopaedics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xin Huang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopaedics Research Institute, Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, China.,Diagnosis and Treatment Center of Bone Metastasis, Department of Orthopaedics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaobo Yan
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopaedics Research Institute, Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, China.,Diagnosis and Treatment Center of Bone Metastasis, Department of Orthopaedics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Nong Lin
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopaedics Research Institute, Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, China.,Diagnosis and Treatment Center of Bone Metastasis, Department of Orthopaedics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhaoming Ye
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopaedics Research Institute, Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, China.,Diagnosis and Treatment Center of Bone Metastasis, Department of Orthopaedics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| |
Collapse
|
7
|
Vega MM, Li G, Shourijeh MS, Ao D, Weinschenk RC, Patten C, Font-Llagunes JM, Lewis VO, Fregly BJ. Computational evaluation of psoas muscle influence on walking function following internal hemipelvectomy with reconstruction. Front Bioeng Biotechnol 2022; 10:855870. [PMID: 36246391 PMCID: PMC9559731 DOI: 10.3389/fbioe.2022.855870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 09/01/2022] [Indexed: 11/13/2022] Open
Abstract
An emerging option for internal hemipelvectomy surgery is custom prosthesis reconstruction. This option typically recapitulates the resected pelvic bony anatomy with the goal of maximizing post-surgery walking function while minimizing recovery time. However, the current custom prosthesis design process does not account for the patient's post-surgery prosthesis and bone loading patterns, nor can it predict how different surgical or rehabilitation decisions (e.g., retention or removal of the psoas muscle, strengthening the psoas) will affect prosthesis durability and post-surgery walking function. These factors may contribute to the high observed failure rate for custom pelvic prostheses, discouraging orthopedic oncologists from pursuing this valuable treatment option. One possibility for addressing this problem is to simulate the complex interaction between surgical and rehabilitation decisions, post-surgery walking function, and custom pelvic prosthesis design using patient-specific neuromusculoskeletal models. As a first step toward developing this capability, this study used a personalized neuromusculoskeletal model and direct collocation optimal control to predict the impact of ipsilateral psoas muscle strength on walking function following internal hemipelvectomy with custom prosthesis reconstruction. The influence of the psoas muscle was targeted since retention of this important muscle can be surgically demanding for certain tumors, requiring additional time in the operating room. The post-surgery walking predictions emulated the most common surgical scenario encountered at MD Anderson Cancer Center in Houston. Simulated post-surgery psoas strengths included 0% (removed), 50% (weakened), 100% (maintained), and 150% (strengthened) of the pre-surgery value. However, only the 100% and 150% cases successfully converged to a complete gait cycle. When post-surgery psoas strength was maintained, clinical gait features were predicted, including increased stance width, decreased stride length, and increased lumbar bending towards the operated side. Furthermore, when post-surgery psoas strength was increased, stance width and stride length returned to pre-surgery values. These results suggest that retention and strengthening of the psoas muscle on the operated side may be important for maximizing post-surgery walking function. If future studies can validate this computational approach using post-surgery experimental walking data, the approach may eventually influence surgical, rehabilitation, and custom prosthesis design decisions to meet the unique clinical needs of pelvic sarcoma patients.
Collapse
Affiliation(s)
- Marleny M. Vega
- Rice Computational Neuromechanics Lab, Department of Mechanical Engineering, Rice University, Houston, TX, United States
| | - Geng Li
- Rice Computational Neuromechanics Lab, Department of Mechanical Engineering, Rice University, Houston, TX, United States
| | - Mohammad S. Shourijeh
- Rice Computational Neuromechanics Lab, Department of Mechanical Engineering, Rice University, Houston, TX, United States
| | - Di Ao
- Rice Computational Neuromechanics Lab, Department of Mechanical Engineering, Rice University, Houston, TX, United States
| | - Robert C. Weinschenk
- Department of Orthopaedic Surgery, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Carolynn Patten
- Biomechanics, Rehabilitation, and Integrative Neuroscience (BRaIN) Lab, UC Davis School of Medicine, Sacramento, CA, United States
- UC Davis Center for Neuroengineering and Medicine, University of California, Davis, CA, United States
- VA Northern California Health Care System, Martinez, CA, United States
| | - Josep M. Font-Llagunes
- Biomechanical Engineering Lab, Department of Mechanical Engineering and Research Centre for Biomedical Engineering, Universitat Politècnica de Catalunya, Barcelona, Spain
- Health Technologies and Innovation, Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain
| | - Valerae O. Lewis
- Department of Orthopaedic Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Benjamin J. Fregly
- Rice Computational Neuromechanics Lab, Department of Mechanical Engineering, Rice University, Houston, TX, United States
| |
Collapse
|
8
|
Miwa S, Yamamoto N, Hayashi K, Takeuchi A, Igarashi K, Tsuchiya H. Surgical Site Infection after Bone Tumor Surgery: Risk Factors and New Preventive Techniques. Cancers (Basel) 2022; 14:cancers14184527. [PMID: 36139686 PMCID: PMC9497226 DOI: 10.3390/cancers14184527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/16/2022] Open
Abstract
The management of malignant bone tumors requires multidisciplinary interventions including chemotherapy, radiation therapy, and surgical tumor resection and reconstruction. Surgical site infection (SSI) is a serious complication in the treatment of malignant bone tumors. Compared to other orthopedic surgeries, the surgical treatment of malignant bone tumors is associated with higher rates of SSIs. In patients with SSIs, additional surgeries, long-term administrations of antibiotics, extended hospital stays, and the postponement of scheduled adjuvant treatments are required. Therefore, SSI may adversely affect functional and oncological outcomes. To improve surgical outcomes in patients with malignant bone tumors, preoperative risk assessments for SSIs, new preventive techniques against SSIs, and the optimal use of prophylactic antibiotics are often required. Previous reports have demonstrated that age, tumor site (pelvis and tibia), extended operative time, implant use, body mass index, leukocytopenia, and reconstruction procedures are associated with an increased risk for SSIs. Furthermore, prophylactic techniques, such as silver and iodine coatings on implants, have been developed and proven to be efficacious and safe in clinical studies. In this review, predictive factors of SSIs and new prophylactic techniques are discussed.
Collapse
|
9
|
Asavamongkolkul A, Chotikawanich E. Late Distal Ureteral Stricture in Internal Hemipelvectomy Without Bone Reconstruction: A Case Report. Res Rep Urol 2022; 14:275-280. [PMID: 35923889 PMCID: PMC9343173 DOI: 10.2147/rru.s370265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 07/12/2022] [Indexed: 11/23/2022] Open
Abstract
We report the case of a patient with Ewing sarcoma involving the right pelvis in a 14-year-old girl who had multicycles of neo-adjuvant chemotherapy and preoperative radiation therapy. She underwent an internal hemipelvectomy type I resection, according to Enneking and Dunham’s classification without bony reconstruction. There was no intra- and perioperative complication. The patient has good function and needs no gait aids. She can walk with equinus foot compensated for leg shortening 5 centimeters and without a shoe-lift. There is no sign of disease relapse. However, she developed late ureteral stricture at 8-year postoperatively and was successfully treated with a ureteral stent.
Collapse
Affiliation(s)
- Apichat Asavamongkolkul
- Department of Orthopaedic Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Correspondence: Apichat Asavamongkolkul, Department of Orthopaedic Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand, Tel/Fax +66 2-419-7968, Email
| | - Ekkarin Chotikawanich
- Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| |
Collapse
|
10
|
Innocenti M, Muratori F, Mazzei G, Guido D, Frenos F, Lucenteforte E, Capanna R, Campanacci DA. The use of a non-biological, bridging, antiprotrusio cage in complex revision hip arthroplasty and periacetabular reconstructive oncologic surgery. Is still today a valid option?: A mid/long-term survival and complications' analysis. Arch Orthop Trauma Surg 2022; 142:681-690. [PMID: 34028571 PMCID: PMC8924141 DOI: 10.1007/s00402-021-03929-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 04/30/2021] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Burch-Schneider-like antiprotrusio cages (B-SlAC) still remain helpful implants to bridge severe periacetabular bone losses. The purpose of this study was to evaluate outcomes and estimate both cages' failures and complication risks in a series of B-SlAC implanted in revision of failed total hip arthroplasties (THA) or after resection of periacetabular primary or secondary bone malignancies. Risk factors enhancing the chance of dislocations and infections were checked. MATERIALS AND METHODS We evaluated 73 patients who received a B-SlAC from January 2008 to January 2018. Group A, 40 oncological cases (22 primary tumors; 18 metastases); Group B, 33 failed THAs. We compared both Kaplan-Meier estimates of risk of failure and complication with the cumulative incidence function, taking account the competing risk of death. Cox proportional hazards model was utilized to identify possible predictors of instability and infection. Harris hip score HHS was used to record clinical outcomes. RESULTS Medium follow-up was 80 months (24-137). Average final HHS was 61 (28-92), with no differences within the two groups (p > 0.05). The probabilities of failure and complications were 57% and 26%, respectively, lower in the oncologic group than in the rTHA group (p =0 .176; risk 0.43) (p = 0.52; risk 0.74). Extended ileo-femoral approach and proximal femur replacement (p =0.02, risk ratio = 3.2; p = 0.04, rr = 2.1) were two significant independent predictors for dislocations, while belonging to group B (p = 0.04, rr = 2.6) was predictable for infections. CONCLUSION Burch-Schneider-like antiprotrusio cages are a classical non-biological acetabular reconstruction method that surgeons should bear in mind when facing gross periacetabular bone losses, independently of their cause. However, dislocation and infection rates are high. Whenever possible, we suggest preserving the proximal femur in revision THA, and to use a less-invasive postero-lateral approach to reduce dislocation rates in non-oncologic cases.
Collapse
Affiliation(s)
- Matteo Innocenti
- Department of Orthopaedic Oncology and Reconstructive Surgery, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Largo Palagi 1, 50139 Florence, Italy
| | - Francesco Muratori
- Department of Orthopaedic Oncology and Reconstructive Surgery, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Largo Palagi 1, 50139 Florence, Italy
| | - Giacomo Mazzei
- Department of Orthopaedic Oncology and Reconstructive Surgery, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Largo Palagi 1, 50139 Florence, Italy
| | - Davide Guido
- Department of Orthopaedic Oncology and Reconstructive Surgery, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Largo Palagi 1, 50139 Florence, Italy
| | - Filippo Frenos
- Department of Orthopaedic Oncology and Reconstructive Surgery, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Largo Palagi 1, 50139 Florence, Italy
| | - Ersilia Lucenteforte
- Unit of Medical Statistics, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Rodolfo Capanna
- Department of Orthopaedic and Trauma Surgery, Azienda Ospedaliera Universitaria Pisana, Pisa, Italy
| | - Domenico Andrea Campanacci
- Department of Orthopaedic Oncology and Reconstructive Surgery, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Largo Palagi 1, 50139 Florence, Italy
| |
Collapse
|
11
|
Pasta G, Ruggieri R, Annunziata S, Gallese A, Gagliardi VP, Cuzzocrea F, Ghiara M, Russo M, Preti PS, Santi RM, Mosconi M, Benazzo F. Haemophilic Pelvic Pseudotumour: A New Surgical Option. Healthcare (Basel) 2021; 9:1269. [PMID: 34682949 DOI: 10.3390/healthcare9101269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 12/02/2022] Open
Abstract
Background: Haemophilia is an inherited coagulopathy caused by the absence or dysfunction of clotting factor VIII or IX. Clinical manifestations are generally secondary to recurrent bleeding episodes mainly in the musculoskeletal system. Bleeding symptoms appear early in life and, when the disease is severe (when plasma factor VIII or IX activity is <1% of normal), joint and muscle bleeding may occur spontaneously. A pseudotumour is a recurrent, chronic, encapsulated, slowly expanding, muscle hematoma. Haemophilic pseudotumour is a rare complication of haemophilia which occurs, as a condition either from repeated spontaneous bleeding or coming from a traumatic origin, in 1–2% of haemophilic patients. Case report: A 32-year-old man with severe haemophilia A referred to our Clinic with a massive right iliac wing pseudotumour complicated by Staphylococcus aureus superinfection and skin fistulisation. In this report we describe the medical management and surgical treatment by the adoption of a novel surgical technique which involves the use of a pedicle-screw and rod system (PSRS), a polyglycolic acid MESH and bone cement in order to build up an artificial ilium-like bony mass. This case report highlights the importance of interdisciplinary approach and the efficacy of eradicating surgery as treatment, especially in the case of large and long-lasting lesions.
Collapse
|
12
|
den Hollander D, Van der Graaf WTA, Fiore M, Kasper B, Singer S, Desar IME, Husson O. Unravelling the heterogeneity of soft tissue and bone sarcoma patients' health-related quality of life: a systematic literature review with focus on tumour location. ESMO Open 2021; 5:e000914. [PMID: 33082266 PMCID: PMC7577059 DOI: 10.1136/esmoopen-2020-000914] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/17/2020] [Accepted: 08/18/2020] [Indexed: 12/18/2022] Open
Abstract
Patients with sarcoma experience many physical and psychological symptoms, adversely affecting their health-related quality of life (HRQoL). HRQoL assessment is challenging due to the diversity of the disease. This review aims to unravel the heterogeneity of HRQoL of patients with sarcoma with regard to tumour location and to summarise the used measures in research. English-language literature from four databases published between January 2000 and April 2019 was reviewed. Studies that described adult sarcoma HRQoL outcomes were included and classified according to primary sarcoma location. Eighty-seven articles met the inclusion criteria covering sarcoma of the extremities (n=35), pelvis and axial skeleton (n=9), pelvis and extremities (n=5), head and neck (n=4), retroperitoneum (n=2) and multiple sarcoma locations (n=33), respectively. Urogenital and thoracic sarcoma were lacking. Fifty-four different questionnaires were used, most often cancer-generic or generic HRQoL questionnaires. Patients with sarcoma reported lower HRQoL than the general population. Distinctive patterns of HRQoL outcomes according to tumour location regarding symptoms, physical functioning, disability and psychosocial well-being were identified. In metastatic sarcoma, mostly constitutional symptoms were present. To comprehensively assess HRQoL, a sarcoma-specific measurement strategy should be developed and used covering the heterogeneity of sarcoma including location-specific issues to improve personalised HRQoL assessment in future research and clinical practice.
Collapse
Affiliation(s)
- Dide den Hollander
- Medical Oncology, Antoni van Leeuwenhoek Netherlands Cancer Institute, Amsterdam, The Netherlands; Medical Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Winette T A Van der Graaf
- Medical Oncology, Antoni van Leeuwenhoek Netherlands Cancer Institute, Amsterdam, The Netherlands; Medical Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Marco Fiore
- Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Lombardia, Italy
| | - Bernd Kasper
- Sarcoma Unit, University of Heidelberg, Mannheim University Medical Center, Mannheim, Germany
| | - Susanne Singer
- Institute of Medical Biostatistics, Epidemiology and Informatics, University Medical Centre Mainz, Mainz, Germany
| | - Ingrid M E Desar
- Medical Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Olga Husson
- Medical Oncology, Antoni van Leeuwenhoek Netherlands Cancer Institute, Amsterdam, The Netherlands; Division of Clinical Studies, Institute of Cancer Research, London, United Kingdom.
| |
Collapse
|
13
|
Xu H, Li Y, Zhang Q, Hao L, Yu F, Niu X. Does Adding Femoral Lengthening at the Time of Rotation Hip Transposition After Periacetabular Tumor Resection Allow for Restoration of Limb Length and Function? Interim Results of a Modified Hip Transposition Procedure. Clin Orthop Relat Res 2021; 479:1521-1530. [PMID: 33534263 PMCID: PMC8280007 DOI: 10.1097/corr.0000000000001653] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 01/05/2021] [Indexed: 01/31/2023]
Abstract
BACKGROUND Reconstruction after pelvic tumor resection of the acetabulum is challenging. Previous methods of hip transposition after acetabular resection have the advantages of reducing wound complications and infections of the allograft or metal endoprosthesis but were associated with substantial limb length discrepancy. We therefore developed a modification of this procedure, rotation hip transposition after femur lengthening, to address limb length, and we wished to evaluate its effectiveness in terms of complications and functional outcomes. QUESTIONS/PURPOSES In this study, we asked: (1) What were the Musculoskeletal Tumor Society scores after this reconstruction method was used? (2) What complications occurred after this reconstruction method was used? (3) What proportion of patients achieved solid arthrodesis (as opposed to pseudarthrosis) with the sacrum and solid union of the femur? (4) What were the results with respect to limb length after a minimum follow-up of 2 years? METHODS From 2011 to 2017, 83 patients with an aggressive benign or primary malignant tumor involving the acetabulum were treated in our institution. Of those, 23% (19 of 83) were treated with rotation hip transposition after femur lengthening and were considered for this retrospective study; 15 were available at a minimum follow-up of 2 years (median [range], 49 months [24 to 97 months]), and four died of lung metastases before 2 years. No patients were lost to follow-up before 2 years. During the period in question, the general indications for this approach were primary nonmetastatic malignant bone tumor or a locally aggressive benign bone tumor that could not be treated adequately with curettage. There were seven men and 12 women with a median age of 43 years. Nine patients underwent Zones I + II resection, eight patients had Zones I + II + III resection, and two received Zones II + III resection. After tumor resection, rotation hip transposition after femur lengthening reconstruction was performed, which included two steps. The first step was to lengthen the femur with the insertion of an allograft. Two methods were used to achieve limb lengthening: a "Z" osteotomy and a transverse osteotomy. The second step was to take the hip transposition and rotate the femoral head posteriorly 10° to 20°. The median (range) operative time was 510 minutes (330 to 925 minutes). The median intraoperative blood loss was 4000 mL (1800 to 7000 mL). We performed a chart review on the 15 available patients for clinical and radiographic assessment of functional outcomes and complications. Arthrodesis and leg length discrepancy were evaluated radiographically. RESULTS The median (range) Musculoskeletal Tumor Society score was 21 points (17 to 30). Eleven of 19 patients developed procedure-related complications, including six patients with allograft nonunion, two with deep infection, two with delayed skin healing, and one with a hematoma. Two patients had minor additional surgical interventions without the removal of any implants. Local recurrences developed in four patients, and all four died of disease. All seven patients treated with a Z osteotomy had bone union. Among the eight patients with transverse osteotomy, bone union did not occur in six patients. After hip transposition, stable iliofemoral arthrodesis was achieved in seven patients. Pseudarthrosis developed in the remaining eight patients. The median (range) lower limb length discrepancy at the last follow-up visit or death was 8 mm (1 to 42 mm). CONCLUSION Although complex and challenging, rotation hip transposition after femur lengthening reconstruction with a Z osteotomy provides acceptable functional outcomes with complications that are within expectations for resection of pelvic tumors involving the acetabulum. Because of the magnitude and complexity of this technique, we believe it should be used primarily for patients with a favorable prognosis, both locally and systemically. This innovative procedure may be useful to other surgeons if larger numbers of patients and longer-term follow-up confirm our results. LEVEL OF EVIDENCE Level IV, therapeutic study.
Collapse
Affiliation(s)
- Hairong Xu
- Department of Orthopedic Oncology Surgery, Beijing Ji Shui Tan Hospital, Peking University. Beijing, China
| | - Yuan Li
- Department of Orthopedic Oncology Surgery, Beijing Ji Shui Tan Hospital, Peking University. Beijing, China
| | - Qing Zhang
- Department of Orthopedic Oncology Surgery, Beijing Ji Shui Tan Hospital, Peking University. Beijing, China
| | - Lin Hao
- Department of Orthopedic Oncology Surgery, Beijing Ji Shui Tan Hospital, Peking University. Beijing, China
| | - Feng Yu
- Department of Orthopedic Oncology Surgery, Beijing Ji Shui Tan Hospital, Peking University. Beijing, China
| | - Xiaohui Niu
- Department of Orthopedic Oncology Surgery, Beijing Ji Shui Tan Hospital, Peking University. Beijing, China
| |
Collapse
|
14
|
Yu Z, Zhang W, Fang X, Tu C, Duan H. Pelvic Reconstruction With a Novel Three-Dimensional-Printed, Multimodality Imaging Based Endoprosthesis Following Enneking Type I + IV Resection. Front Oncol 2021; 11:629582. [PMID: 33928025 PMCID: PMC8078592 DOI: 10.3389/fonc.2021.629582] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 03/18/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND AND PURPOSE Pelvic tumor involving Type I + IV resections are technically challenging, along with various reconstructions methods presenting unsatisfactory outcomes and high complication rates. Since predominating studies preferred adopting pedicle screw-rod system (PRSS) to address this issue, we designed a novel three-dimensional-printed, multimodality imaging (3DMMI) based endoprosthesis with patient-specific instrument (PSI) assistance to facilitate the surgical reconstruction of pelvic tumor involving Enneking Type I + IV resection. We aimed to investigate the clinical effectiveness of this novel endoprosthesis and compare it with PRSS in Type I + IV reconstruction. METHODS We retrospective studied 28 patients for a median follow-up of 47 months (range, 10 to 128 months) in this study with either 3D-printed endoprosthesis reconstruction (n = 10) or PRSS reconstruction (n = 18) between January 2000 and December 2017. Preoperative 3DMMI technique was used for tumor evaluation, PSI design, virtual surgery, and endoprosthesis fabrication. Clinical, oncological outcomes, functional assessments, and complications were analyzed between the two groups. RESULTS Minor surgical trauma with mean operative duration of 251 ± 52.16 minutes (p = 0.034) and median intraoperative hemorrhage of 2000ml (range, 1600, 4000ml) (p = 0.032) was observed in endoprosthesis group. Wide margins were achieved in 9 patients of the endoprosthesis group compared with 10 in the PRSS group (p = 0.09). The 1993 version of the Musculoskeletal Tumor Society score (MSTS-93) was 23.9 ± 3.76 in endoprosthesis group, which was higher than PRSS group (p = 0.012). No statistical significance was found in relapse between two groups (p = 0.36). Complications were observed in two patients in endoprosthesis group compared with 12 patients in PRSS group (p = 0.046). CONCLUSION The novel design of this 3D-printed endoprosthesis, together with 3DMMI and PSI assisted, is technically accessible with favorable clinical outcomes compared with PRSS. Further study is essential to identify its long-term outcomes.
Collapse
Affiliation(s)
| | | | | | | | - Hong Duan
- West China School of Medicine/West China Hospital, Sichuan University, Chengdu, China
| |
Collapse
|
15
|
Fujiwara T, Medellin Rincon MR, Sambri A, Tsuda Y, Clark R, Stevenson J, Parry MC, Grimer RJ, Jeys L. Limb-salvage reconstruction following resection of pelvic bone sarcomas involving the acetabulum. Bone Joint J 2021; 103-B:795-803. [PMID: 33789467 DOI: 10.1302/0301-620x.103b4.bjj-2020-0665.r1] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS Limb salvage for pelvic sarcomas involving the acetabulum is a major surgical challenge. There remains no consensus about what is the optimum type of reconstruction after resection of the tumour. The aim of this study was to evaluate the surgical outcomes in these patients according to the methods of periacetabular reconstruction. METHODS The study involved a consecutive series of 122 patients with a periacetabular bone sarcoma who underwent limb-salvage surgery involving a custom-made prosthesis in 65 (53%), an ice-cream cone prosthesis in 21 (17%), an extracorporeal irradiated autograft in 18 (15%), and nonskeletal reconstruction in 18 (15%). RESULTS The rates of major complications necessitating further surgery were 62%, 24%, 56%, and 17% for custom-made prostheses, ice-cream cone prostheses, irradiated autografts and nonskeletal reconstructions, respectively (p = 0.001). The ten-year cumulative incidence of failure of the reconstruction was 19%, 9%, 33%, and 0%, respectively. The major cause of failure was deep infection (11%), followed by local recurrence (6%). The mean functional Musculoskeletal Tumour Society (MSTS) scores were 59%, 74%, 64%, and 72%, respectively. The scores were significantly lower in patients with major complications than in those without complications (mean 52% (SD 20%) vs 74% (SD 19%); p < 0.001). For periacetabular resections involving the ilium, the mean score was the highest with custom-made prostheses (82% (SD 10%)) in patients without any major complication; however, nonskeletal reconstruction resulted in the highest mean scores (78% (SD 12%)) in patients who had major complications. For periacetabular resections not involving the ilium, significantly higher mean scores were obtained with ice-cream cone prostheses (79% (SD 17%); p = 0.031). CONCLUSION Functional outcome following periacetabular reconstruction is closely associated with the occurrence of complications requiring further surgery. For tumours treated with periacetabular and iliac resection, skeletal reconstruction may result in the best outcomes in the absence of complications, whereas nonskeletal reconstruction is a reasonable option if the risk of complications is high. For tumours requiring periacetabular resection without the ilium, reconstruction using an ice-cream cone prosthesis supported by antibiotic-laden cement is a reliable option. Cite this article: Bone Joint J 2021;103-B(4):795-803.
Collapse
Affiliation(s)
- Tomohiro Fujiwara
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK.,Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | | | - Andrea Sambri
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Yusuke Tsuda
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Rhys Clark
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | | | - Michael C Parry
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Robert J Grimer
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Lee Jeys
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| |
Collapse
|
16
|
Fujiwara T, Stevenson J, Parry M, Le Nail LR, Tsuda Y, Grimer R, Jeys L. Pelvic reconstruction using an ice-cream cone prosthesis: correlation between the inserted length of the coned stem and surgical outcome. Int J Clin Oncol 2021; 26:1139-1146. [PMID: 33721114 DOI: 10.1007/s10147-021-01882-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 01/25/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Acetabular reconstruction using an ice-cream cone prosthesis has been a reliable reconstruction option following pelvic tumour resection. However, it remains unknown which factor determines the success of this procedure. We aimed to determine risk factors for complications and functional loss in acetabular reconstruction using an ice-cream cone prosthesis. PATIENTS AND METHODS Fifty-four patients with malignant bone tumours who underwent acetabular reconstruction using an ice-cream cone prosthesis between 2004 and 2016 were studied. The bone-stem ratio was calculated as the ratio of the inserted length into the bone per the entire stem length. RESULTS A total of 26 (48%) patients had at least one complication and 11 patients (20%) required surgical interventions. The complication rates were 71% and 40% with a bone-stem ratio ≤ 50% and > 50%, respectively (p = 0.026), and the bone-stem ratio significantly stratified the risk of complications (≤ 50%: OR, 4.67 versus > 50%; p = 0.048). The mean MSTS score at the final follow-up was 60% (range 23-97%): the scores were significantly lower in patients with complications/leg-length discrepancy (52%) than in those without (79%; p = 0.002). The mean score with a bone-stem ratio ≤ 50% was significantly lower than the score with a ratio > 50%, especially in patients who underwent non-navigated reconstructions (33% versus 64%; p = 0.001). CONCLUSION The inserted length of the coned stem into residual bone was predictive of complications and functional outcome. Surgical indication for this procedure should be considered with the size of the remaining ilium to stabilise the prosthesis with a coned stem longer than half length.
Collapse
Affiliation(s)
- Tomohiro Fujiwara
- Department of Oncology, The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK.
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan.
| | - Jonathan Stevenson
- Department of Oncology, The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Michael Parry
- Department of Oncology, The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Louis-Romée Le Nail
- Department of Oncology, The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Yusuke Tsuda
- Department of Oncology, The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Robert Grimer
- Department of Oncology, The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Lee Jeys
- Department of Oncology, The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| |
Collapse
|
17
|
Houdek MT, Wunder JS, Abdel MP, Griffin AM, Hevesi M, Rose PS, Ferguson PC, Lewallen DG. Comparison of reconstructive techniques after acetabular resection for pelvic chondrosarcoma. Bone Joint J 2021; 103-B:391-397. [PMID: 33517732 DOI: 10.1302/0301-620x.103b2.bjj-2020-1012.r1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS Hip reconstruction after resection of a periacetabular chondrosarcoma is complex and associated with a high rate of complications. Previous reports have compared no reconstruction with historical techniques that are no longer used. The aim of this study was to compare the results of tantalum acetabular reconstruction to both historical techniques and no reconstruction. METHODS We reviewed 66 patients (45 males and 21 females) with a mean age of 53 years (24 to 81) who had undergone acetabular resection for chondrosarcoma. A total of 36 patients (54%) underwent acetabular reconstruction, most commonly with a saddle prosthesis (n = 13; 36%) or a tantalum total hip arthroplasty (THA) (n = 10; 28%). Mean follow-up was nine years (SD 4). RESULTS There was no difference in the mean age (p = 0.63), sex (p = 0.110), tumour volume (p = 0.646), or type of resection carried out (p > 0.05) between patients with and without reconstruction. Of the original 66 patients, 61 (92%) were ambulant at final follow-up. There was no difference in the proportion of patients who could walk in the reconstruction and 'no reconstruction' groups (p = 0.649). There was no difference in the mean Musculoskeletal Tumor Society (MSTS) score between patients who were reconstructed and those who were not (61% vs 56%; p = 0.378). Patients with a tantalum THA had a significantly (p = 0.015) higher mean MSTS score (78%) than those who were reconstructed with a saddle prosthesis (47%) or who had not been reconstructed (56%). Patients who had undergone reconstruction were more likely to have complications (81% vs 53%; p = 0.033). CONCLUSION Reconstruction after resection of the acetabulum is technically demanding. In selected cases, reconstruction is of benefit, especially when reconstruction is by tantalum THA; however, the follow-up for these patients remains mid-term. When not feasible, patients with no reconstruction have an acceptable functional outcome. Level of Evidence: Level III Therapeutic. Cite this article: Bone Joint J 2021;103-B(2):391-397.
Collapse
Affiliation(s)
- Matthew T Houdek
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Jay S Wunder
- Division of Orthopaedic Surgery, Department of Surgery, University Musculoskeletal Oncology Unit, Mount Sinai Hospital, University of Toronto, Toronto, Canada
| | - Matthew P Abdel
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Anthony M Griffin
- Division of Orthopaedic Surgery, Department of Surgery, University Musculoskeletal Oncology Unit, Mount Sinai Hospital, University of Toronto, Toronto, Canada
| | - Mario Hevesi
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Peter S Rose
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Peter C Ferguson
- Division of Orthopaedic Surgery, Department of Surgery, University Musculoskeletal Oncology Unit, Mount Sinai Hospital, University of Toronto, Toronto, Canada
| | - David G Lewallen
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| |
Collapse
|
18
|
Goyal T, Jain A, Ansari S, Paul S, Anthony ML. Intra-articular Partial Acetabular Resection and Allograft Reconstruction for Synovial Sarcoma. J Orthop Case Rep 2020; 10:33-37. [PMID: 34169014 PMCID: PMC8046444 DOI: 10.13107/jocr.2020.v10.i09.1894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Introduction: The aim of this case report is to present an option of reconstruction in tumors involving the posterior wall and column of the acetabulum with sparing of the anterior column and the weight-bearing dome. Case Report: We are reporting a case of a 25-year-old female with histopathologically proven synovial sarcoma involving the left inferior pubic ramus, ischium, and posterior wall of the acetabulum, along with a large soft-tissue extension in the posterior and medial thigh. Wide local excision involving partial acetabular resection and reconstruction using a femoral head allograft was carried out. The patient was allowed full weight-bearing mobilization after 6 weeks. At 3 months’ follow-up, the patient was able to walk without support and was able to do active straight leg raising. There were no radiological signs of joint degeneration at the 12-month follow-up. Conclusion: Reconstruction with non-articular femoral head allograft can be a viable alternative after resection of tumor involving acetabulum. This procedure is expected to support the hip joint and restore function in the short term and recreate bone stock for future arthroplasty if the need arises.
Collapse
Affiliation(s)
- Tarun Goyal
- Department of Orthopaedics, All India Institute of Medical Sciences, Bathinda, Punjab, India
| | - Akriti Jain
- Department of Orthopaedics, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, Indi
| | - Sajid Ansari
- Department of Orthopaedics, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, Indi
| | - Souvik Paul
- Department of Orthopaedics, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, Indi
| | - Michael Leonard Anthony
- Department of Pathology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
| |
Collapse
|
19
|
Erol B, Sofulu O, Sirin E, Saglam F, Buyuktopcu O. Reconstruction after periacetabular tumor resection with Lumic® endoprosthesis: What are the midterm results? J Surg Oncol 2020; 123:532-543. [PMID: 33238055 DOI: 10.1002/jso.26318] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/24/2020] [Accepted: 11/14/2020] [Indexed: 12/19/2022]
Abstract
INTRODUCTION This study aimed to analyze the midterm outcomes of LUMiC® endoprosthetic reconstruction following periacetabular resection of primary bone sarcomas and carcinoma metastases. PATIENTS AND METHODS We retrospectively reviewed the charts of 21 patients (11 male [52.3%], 10 female [47.6%]; mean age 47 ± 16 years) for whom a LUMiC® endoprosthesis (Implantcast) was used to reconstruct a periacetabular defect after internal hemipelvectomy. The tumor was pathologically diagnosed as Ewing's sarcoma in six (28.5%), chondrosarcoma in 10 (47.6%), and bone metastasis from carcinoma in five (23.8%) patients. RESULTS The median follow-up of patients was 57.8 months (95% confidence interval: 51.9-63.7). The implant survival rate at 1, 2, and 5 years were 95.2%, 85.7%, and 80.9%, respectively. The overall complication rate was 33.3% (n = 7). Four (19%) complications resulted in reconstruction failure. Total reoperation rate was 28.5% (n = 6). The complications were soft tissue failure/dislocation in two patients, aseptic loosening in one, infection in two, and local recurrence in two. At the time of study, seven patients were alive with no evidence of disease, seven were alive with disease, and seven died of disease. The 5-year overall survival rate and local recurrence-free survival rates were 67% and 76%, respectively. The median Musculoskeletal Tumor Society score at final follow-up was 70% (range: 50%-86.6%). CONCLUSION We conclude that LUMiC® endoprosthesis provides good functional outcomes and a durable reconstruct. Even though this reconstruction method presents some complications, it provides a stable pelvis in the management of periacetabular malignant tumors.
Collapse
Affiliation(s)
- Bulent Erol
- Department of Orthopaedic Surgery and Traumatology, Marmara University School of Medicine, Istanbul, Turkey
| | - Omer Sofulu
- Department of Orthopaedic Surgery and Traumatology, Marmara University School of Medicine, Istanbul, Turkey
| | - Evrim Sirin
- Department of Orthopaedic Surgery and Traumatology, Marmara University School of Medicine, Istanbul, Turkey
| | - Fevzi Saglam
- Department of Orthopaedic Surgery and Traumatology, Marmara University School of Medicine, Istanbul, Turkey
| | - Omer Buyuktopcu
- Department of Orthopaedic Surgery and Traumatology, Marmara University School of Medicine, Istanbul, Turkey
| |
Collapse
|
20
|
Ji T, Yang Y, Tang X, Liang H, Yan T, Yang R, Guo W. 3D-Printed Modular Hemipelvic Endoprosthetic Reconstruction Following Periacetabular Tumor Resection: Early Results of 80 Consecutive Cases. J Bone Joint Surg Am 2020; 102:1530-1541. [PMID: 32427766 DOI: 10.2106/jbjs.19.01437] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Reconstruction with an endoprosthesis following pelvic tumor resection has increased over the years. However, the long-term results reflect a disappointing frequency of mechanical complications and failures. In an attempt to enhance implant fixation, an electron beam melting (EBM)-based modular hemipelvic endoprosthesis was introduced. Our aim was to explore the preliminary clinical outcomes for patients who have been managed with this prosthesis. METHODS We reviewed the records of 80 consecutive patients who had been managed at a single center between June 2015 and September 2017. Chondrosarcoma was the predominant diagnosis (31.3%). Osseous metastases were diagnosed in 16 patients (20.0%). The position of the reconstructed metallic acetabulum was measured on an anteroposterior pelvic radiograph. Bone ingrowth was evaluated in 2 samples harvested from patients with tumor recurrence. RESULTS After a median duration of follow-up of 32.5 months (range, 9 to 52 months), no acetabular component instability was detected on radiographs. Histological sectioning of specimens harvested from 2 patients with tumor recurrence showed bone trabeculae extending toward the implant and bone ingrowth within the porous network. At the time of the latest follow-up, 59 patients (73.8%) were alive with no evidence of disease, 5 patients (6.3%) were alive with disease, and 16 patients (20.0%) had died of disease. Local recurrence occurred in 9 patients (11.3%). The mean Musculoskeletal Tumor Society score at the time of the latest follow-up was 83.9% (range, 43% to 100%). Complications occurred in 16 patients (20%), with wound dehiscence being the most common complication (8 patients; 10%). No aseptic loosening was found. Five patients (6.3%) had deep infection, and 2 patients (2.5%) had dislocation. CONCLUSIONS The use of a 3-dimensional (3D)-printed modular hemipelvic endoprosthesis with a highly porous metal interface represents a potential choice as a pelvic endoprosthesis after internal hemipelvectomy for the treatment of a primary or metastatic tumor. These preliminary results demonstrate stable fixation with acceptable early functional and radiographic outcomes. LEVEL OF EVIDENCE Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Collapse
Affiliation(s)
- Tao Ji
- Musculoskeletal Tumor Center, People's Hospital, Peking University, Beijing, People's Republic of China
| | | | | | | | | | | | | |
Collapse
|
21
|
Ippolito J, Thomson J, Beebe K, Patterson F, Benevenia J. Outcomes following periacetabular tumor resection: A 25-year institutional experience. J Surg Oncol 2020; 122:949-954. [PMID: 32596878 DOI: 10.1002/jso.26088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 05/19/2020] [Accepted: 06/08/2020] [Indexed: 11/06/2022]
Abstract
BACKGROUNDS AND OBJECTIVES Following tumor resection involving the acetabulum (periacetabular), various methods of reconstruction exist. The objective of this study was to analyze functional outcomes and complication rates by extent of periacetabular tumor resection, as well as by method of reconstruction. METHODS Twenty-three patients underwent periacetabular resection for a primary pelvic bone tumor from 1993-2018 at a single institution. Complications were documented and functional outcomes were assessed using the Musculoskeletal Tumor Society (MSTS) scoring system. RESULTS Mean age was 42.8 ± 22.6 years. Mean follow-up was 107 ± 75 months. MSTS scores were highest in patients with allograft reconstruction (80.2%) and lowest in saddle reconstruction (38.0%). MSTS scores were higher in patients with Type II periacetabular resection alone compared with Type II + additional resection (78.6% vs 60.3%; P = .019). Complications were lower in patients with Type II periacetabular resection alone (75% vs 28.6%; P = .036). Complications were highest following allograft reconstruction (78%) and lowest following hemipelvectomy without reconstruction (20%). CONCLUSION Patients who underwent allograft/APC or nonsaddle metallic reconstruction experienced the highest functional outcome scores, but also sustained a higher complication rate than patients with hemipelvectomy without reconstruction. Patients with resection of ilium and/or pubis in addition to the periacetabular region had lower functional outcome scores and higher risk for complication.
Collapse
Affiliation(s)
- Joseph Ippolito
- Department of Orthopaedics, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Jennifer Thomson
- Department of Orthopaedics, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Kathleen Beebe
- Department of Orthopaedics, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Francis Patterson
- Department of Orthopaedics, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Joseph Benevenia
- Department of Orthopaedics, Rutgers New Jersey Medical School, Newark, New Jersey
| |
Collapse
|
22
|
Li X, Ji T, Huang S, Wang C, Zheng Y, Guo W. Biomechanics study of a 3D printed sacroiliac joint fixed modular hemipelvic endoprosthesis. Clin Biomech (Bristol, Avon) 2020; 74:87-95. [PMID: 32146381 DOI: 10.1016/j.clinbiomech.2020.02.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 02/20/2020] [Accepted: 02/25/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Reconstructing pelvic type II + III defect caused by bone tumors is challenging. The purpose of this study was to explore the in vitro biomechanical properties of a reconstructed pelvis after periacetabular resection using three-dimensional (3D) printed sacroiliac joint (SIJ) fixed modular hemipelvic endoprosthesis. METHODS Type II/II + III pelvic resection was simulated on an artificial pelvic model. The bilateral acetabulum and pubis were constrained, and the pelvis was maintained in a human physiological standing position. A vertically continuous linear load was applied on the upper face of S1 until obvious unloading or fixed failure occurred. A noncontact optical 3D strain measuring system was used to measure the strains and displacements at the selected area. FINDINGS The strain at the points of interest did not obviously differ between the intact and reconstructed pelvis models. The difference in the displacement on the reconstructed side was 0.237 mm, and that on the contralateral side was 0.245 mm. The maximum differences in the displacement at the acetabulum were 0.209 mm (vertical) and 0.324 mm (horizontal). A crack at the superior rim of the contralateral acetabulum occurred, and failure loading of 7.126 kN. INTERPRETATION The prosthesis in this study showed satisfactory mechanical properties and structural stability. According to the mechanical evaluations, the 3D printed sacroiliac-stabilized hemipelvic endoprosthesis can be used to reconstruct a stable acetabular structure, and there was little influence on the mechanical properties of the surrounding bone structures. The prosthesis design is reasonable, and the mechanical distribution on the reconstructed side was similar to that on the contralateral side.
Collapse
|
23
|
Sun W, Zan P, Ma X, Hua Y, Shen J, Cai Z. Surgical resection and reconstructive techniques using autologous femoral head bone-grafting in treating partial acetabular defects arising from primary pelvic malignant tumors. BMC Cancer 2019; 19:969. [PMID: 31627719 PMCID: PMC6800503 DOI: 10.1186/s12885-019-6196-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 09/24/2019] [Indexed: 01/02/2023] Open
Abstract
Background The aim of this study is to present and evaluate surgical resection and reconstructive techniques using autologous femoral head bone-grafting in treating partial acetabular defects arising from primary pelvic malignant tumors. Methods From January 2009 until January 2015, a total of 20 primary pelvic malignancy cases involving the acetabulum were retrospectively investigated. Surgical resections and reconstructions were conducted based on the type of the tumor with custom osteotomy guides and autologous femoral head bone-grafting. In all cases, prosthesis survival period, complication occurrence, and clinical outcomes data were collected and analyzed. Results Thirteen male and 7 female patients with an average age of 48 years old (range 23-69 years old) were followed for a median of 69 months (range 48-112 months). Of these cases, 17 included chondrosarcomas and 3 additional patients with a malignant giant cell tumor of bone (MBGCT) as proven by pathology. During follow-up, 3 cases of chondrosarcoma recurred (15%), of which two cases received hemi-pelvic amputation, 1 case of MBGCT relapsed and developed pulmonary metastases. Two cases of acetabular prosthesis with an impending dislocation received closed reduction followed by 6 weeks of hip abduction brace fixation. One case of prosthesis loosening was revised. In another case a deep infection occurred with debridement and prosthesis removal. Musculoskeletal Tumor Society 1993 (MSTS-93) score was utilized to conduct functional evaluation: 13 cases were good, 6 were average and one was poor. Conclusion The precision of the osteotomies performed is likely crucial for this type of reconstructive strategy to be successful. The use of custom guides for acetabular osteotomies and femoral head reconstruction can improve functional outcomes with relatively low complications at the intermediate length of follow-up.
Collapse
Affiliation(s)
- Wei Sun
- Department of Orthopedic Surgery, Shanghai general hospital affiliated to Jiaotong University, No.100 Haining Road, Hongkou District, Shanghai, 200080, China
| | - Pengfei Zan
- Department of Orthopedic Surgery, Second affiliated hospital of Zhejiang University, Hangzhou, China
| | - Xiaojun Ma
- Department of Orthopedic Surgery, Shanghai general hospital affiliated to Jiaotong University, No.100 Haining Road, Hongkou District, Shanghai, 200080, China
| | - Yingqi Hua
- Department of Orthopedic Surgery, Shanghai general hospital affiliated to Jiaotong University, No.100 Haining Road, Hongkou District, Shanghai, 200080, China
| | - Jiakang Shen
- Department of Orthopedic Surgery, Shanghai general hospital affiliated to Jiaotong University, No.100 Haining Road, Hongkou District, Shanghai, 200080, China
| | - Zhengdong Cai
- Department of Orthopedic Surgery, Shanghai general hospital affiliated to Jiaotong University, No.100 Haining Road, Hongkou District, Shanghai, 200080, China.
| |
Collapse
|
24
|
Iqbal T, Wang L, Li D, Dong E, Fan H, Fu J, Hu C. A general multi-objective topology optimization methodology developed for customized design of pelvic prostheses. Med Eng Phys 2019; 69:8-16. [PMID: 31229384 DOI: 10.1016/j.medengphy.2019.06.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 05/29/2019] [Accepted: 06/10/2019] [Indexed: 11/28/2022]
Abstract
In this study, a multi-objective topology optimization method has been formulated and carried out for various resection types, with minimization of a weighted sum of the compliance (maximized stiffness) under six routine activities of daily life as the objective function and volume reduction as a constraint. Unique prosthetic geometries with low weight and remarkable strength closely matching the pelvic bone shape were obtained. The strength of the optimized implants was investigated through finite element analysis and it has been found that the initial geometries of the optimized implants could withstand the static loading conditions of various routine activities having less stress concentration areas. A 3D printed patient-specific topology optimized hemi-pelvic prosthesis has been designed based on the proposed method and implanted successfully in a patient with pelvic sarcoma. Therefore, pelvic prostheses can be designed and then manufactured via additive manufacturing technologies with the minimum material in less time and having robust mechanical fixation responses. Conclusively, the topology optimization method used for the design of pelvic prostheses improves the biomechanical performance of the implants with reduced weight and higher stiffness than the traditional implants. Including the topology optimization procedure in the phase of designing patient-specific pelvic implants is therefore, highly recommended.
Collapse
Affiliation(s)
- Taimoor Iqbal
- State Key Laboratory for Manufacturing System Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, PR China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710054, PR China
| | - Ling Wang
- State Key Laboratory for Manufacturing System Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, PR China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710054, PR China.
| | - Dichen Li
- State Key Laboratory for Manufacturing System Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, PR China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710054, PR China
| | - Enchun Dong
- State Key Laboratory for Manufacturing System Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, PR China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710054, PR China
| | - Hongbin Fan
- Department of Orthopedics, Xijing Hospital, Air Force Medical University, Xi'an 710032, PR China
| | - Jun Fu
- Department of Orthopedics, Xijing Hospital, Air Force Medical University, Xi'an 710032, PR China
| | - Cai Hu
- Shaanxi Institute of Medical Device Quality Supervision and Inspection, Xi'an 712046, PR China
| |
Collapse
|
25
|
Sanders PTJ, Bus MPA, Scheper H, van der Wal RJP, van de Sande MAJ, Bramer JAM, Schaap GR, de Boer MGJ, Dijkstra PDS. Multiflora and Gram-Negative Microorganisms Predominate in Infections Affecting Pelvic Endoprostheses Following Tumor Resection. J Bone Joint Surg Am 2019; 101:797-803. [PMID: 31045667 DOI: 10.2106/jbjs.18.00836] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Periprosthetic infections after pelvic reconstruction are common, with reported rates ranging from 11% to 53%. Management of these infections is troublesome, as they commonly necessitate multiple surgical interventions and implant removal. The epidemiology and outcomes of these infections are largely unknown. The aim of this study was to analyze the causative microorganisms and the clinical outcome of treatment in a series of patients with pelvic endoprostheses affected by infection following tumor resection. METHODS In this retrospective, multicenter cohort study, we identified all patients who developed an infection after endoprosthetic reconstruction in periacetabular tumor resection, between 2003 and 2017. The microorganisms that were isolated during the first debridement were recorded, as were the number of reoperations for ongoing infection, the antimicrobial treatment strategy, and the outcome of treatment. RESULTS In a series of 70 patients who underwent pelvic endoprosthetic reconstruction, 18 (26%) developed an infection. The type of pelvic resection according to the Enneking-Dunham classification was type P2-3 in 14 (78%) of these patients and type P2 in 4 (22%). Median follow-up was 66 months. Fourteen (78%) of the 18 patients with infection had a polymicrobial infection. Enterobacteriaceae were identified on culture for 12 (67%). Of a total 42 times that a microorganism was isolated, the identified pathogen was gram-negative in 26 instances (62%). Microorganisms associated with intestinal flora were identified 32 times (76%). At the time of latest follow-up, 9 (50%) of the patients had the original implant in situ. Of these, 2 had a fistula and another 2 were receiving suppressive antibiotic therapy. In the remaining 9 (50%) of the patients, the original implant had been removed. At the time of final follow-up, 3 of these had a second implant in situ. The remaining 6 patients had undergone no secondary reconstruction. CONCLUSIONS Infections that affect pelvic endoprostheses are predominantly polymicrobial and caused by gram-negative microorganisms, and may be associated with intestinal flora. This differs fundamentally from mono-bacterial gram-positive causes of conventional periprosthetic joint infections and may indicate a different pathogenesis. Our results suggest that prophylaxis and empiric treatment may need to be re-evaluated. LEVEL OF EVIDENCE Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Collapse
Affiliation(s)
- P T J Sanders
- Departments of Orthopedic Surgery (P.T.J.S., M.P.A.B., R.J.P.v.d.W., M.A.J.v.d.S., and P.D.S.D.) and Infectious Diseases (H.S. and M.G.J.d.B.), Leiden University Medical Center, Leiden, the Netherlands
| | - M P A Bus
- Departments of Orthopedic Surgery (P.T.J.S., M.P.A.B., R.J.P.v.d.W., M.A.J.v.d.S., and P.D.S.D.) and Infectious Diseases (H.S. and M.G.J.d.B.), Leiden University Medical Center, Leiden, the Netherlands
| | - H Scheper
- Departments of Orthopedic Surgery (P.T.J.S., M.P.A.B., R.J.P.v.d.W., M.A.J.v.d.S., and P.D.S.D.) and Infectious Diseases (H.S. and M.G.J.d.B.), Leiden University Medical Center, Leiden, the Netherlands
| | - R J P van der Wal
- Departments of Orthopedic Surgery (P.T.J.S., M.P.A.B., R.J.P.v.d.W., M.A.J.v.d.S., and P.D.S.D.) and Infectious Diseases (H.S. and M.G.J.d.B.), Leiden University Medical Center, Leiden, the Netherlands
| | - M A J van de Sande
- Departments of Orthopedic Surgery (P.T.J.S., M.P.A.B., R.J.P.v.d.W., M.A.J.v.d.S., and P.D.S.D.) and Infectious Diseases (H.S. and M.G.J.d.B.), Leiden University Medical Center, Leiden, the Netherlands
| | - J A M Bramer
- Department of Orthopedic Surgery, Academic Medical Center, Amsterdam, the Netherlands
| | - G R Schaap
- Department of Orthopedic Surgery, Academic Medical Center, Amsterdam, the Netherlands
| | - M G J de Boer
- Departments of Orthopedic Surgery (P.T.J.S., M.P.A.B., R.J.P.v.d.W., M.A.J.v.d.S., and P.D.S.D.) and Infectious Diseases (H.S. and M.G.J.d.B.), Leiden University Medical Center, Leiden, the Netherlands
| | - P D S Dijkstra
- Departments of Orthopedic Surgery (P.T.J.S., M.P.A.B., R.J.P.v.d.W., M.A.J.v.d.S., and P.D.S.D.) and Infectious Diseases (H.S. and M.G.J.d.B.), Leiden University Medical Center, Leiden, the Netherlands
| |
Collapse
|
26
|
Plummer D, Passen E, Alexander J, Vajapey S, Frantz T, Niedermeier S, Pettit R, Scharschmidt T. Rapid return to function and stability with dual mobility components cemented into an acetabular reconstructive cage for large osseous defects in the setting of periacetabular metastatic disease. J Surg Oncol 2019; 119:1155-1160. [PMID: 30908659 DOI: 10.1002/jso.25463] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 02/25/2019] [Accepted: 03/04/2019] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND OBJECTIVES Large acetabular defects secondary to metastatic disease frequently require extensive acetabular reconstruction. Techniques of acetabular reconstruction have been described, but no consensus for the management of these defects has been reached so far. We present our technique and patient outcomes for acetabular reconstruction by cementing a dual mobility cup into an acetabular cage. METHODS We reviewed 152 total hip arthroplasties and identified 19 patients with periacetabular metastatic disease and large defects who required acetabular reconstruction utilizing a dual mobility cup cemented into an acetabular reconstructive cage. The following outcomes were evaluated: pain relief, functional improvement, postoperative complications. RESULTS Mean follow-up was 3 years, with 13 of the 19 patients eligible for 2-year follow-up. Patients reported a significant improvement in both pain and functional outcomes. There were no dislocations or signs of loosening. Two patients developed postoperative infections. One patient required hemipelvectomy 16 months postop due to recurrence of metastatic disease. CONCLUSIONS Cementing a dual mobility cup into an acetabular cage provides a highly stable and durable option for patients with periacetabular metastatic disease and large defects. Patients are able to return to immediate full weight bearing with significant improvement in both function and pain at 2 years.
Collapse
Affiliation(s)
- Darren Plummer
- Department of Orthopaedic Surgery, The Ohio State University, Columbus, Ohio
| | - Edward Passen
- Department of Orthopaedic Surgery, Heritage College of Osteopathic Medicine, Ohio University, Athens, Ohio
| | - John Alexander
- Department of Orthopaedic Surgery, The Ohio State University, Columbus, Ohio
| | - Sravya Vajapey
- Department of Orthopaedic Surgery, The Ohio State University, Columbus, Ohio
| | - Travis Frantz
- Department of Orthopaedic Surgery, The Ohio State University, Columbus, Ohio
| | - Steven Niedermeier
- Department of Orthopaedic Surgery, The Ohio State University, Columbus, Ohio
| | - Robert Pettit
- Department of Orthopaedic Surgery, The Ohio State University, Columbus, Ohio
| | - Thomas Scharschmidt
- Department of Orthopaedic Surgery, The Ohio State University, Columbus, Ohio
| |
Collapse
|
27
|
Kim CY, Collier CD, Liu RW, Getty PJ. Are Limb-sparing Surgical Resections Comparable to Amputation for Patients With Pelvic Chondrosarcoma? A Case-control, Propensity Score-matched Analysis of the National Cancer Database. Clin Orthop Relat Res 2019; 477:596-605. [PMID: 30762693 DOI: 10.1097/CORR.0000000000000622] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Chondrosarcoma is the second most frequent primary sarcoma of bone and frequently occurs in the pelvis. Surgical resection is the primary treatment with the two main operative modalities being limb-sparing resection and amputation. Contemporary management has trended toward limb-sparing procedures; however, whether this approach has an adverse effect on long-term survival is unclear. QUESTIONS/PURPOSES (1) What are the 5- and 10-year survival rates after limb-sparing surgery and amputation? (2) What factors are associated with survival after contemporary surgical management of pelvic chondrosarcoma? METHODS The 2004-2014 National Cancer Database, a nationwide registry that includes approximately 70% of all new cancers in the United States with requirement for 90% followup, was reviewed for patients diagnosed with pelvic chondrosarcoma who had undergone limb-sparing surgery or amputation. To compare survival, patient demographics, tumor attributes, and treatment characteristics were used to generate one-to-one propensity score-matched cohorts. Other factors associated with survival were determined through multivariable Cox regression. Three hundred eighty-five patients (75%) underwent limb-sparing surgery and 131 (25%) underwent amputation. Propensity score matching resulted in two balanced cohorts of 131 patients. RESULTS With the numbers available, we could not demonstrate a difference in overall survival between limb-sparing procedures and amputation. The 5-year survivorship was 70% (95% confidence interval [CI], 62%-79%) for limb-sparing surgery versus 70% (95% CI, 62%-79%) for amputation. The 10-year survivorship was 60% (95% CI, 48%-75%) for limb-sparing surgery versus 59% (95% CI, 48%-72%) for amputation. Kaplan-Meier survival analysis did not demonstrate a difference in survival (p = 0.9). Older age (hazard ratio [HR] = 1.029, p < 0.001), higher Charlson/Deyo comorbidity score (HR = 3.039, p = 0.004), higher grade (HR = 2.547, p = 0.005 for Grade 2; HR = 7.269, p < 0.001 for Grade 3; HR = 10.36, p < 0.001 for Grade 4), and positive surgical margins (HR = 1.61, p = 0.039) were associated with decreased survival. CONCLUSIONS Our findings support the trend toward increased use of limb-sparing surgery for patients with pelvic chondrosarcoma. Orthopaedic oncologists may use our results when counseling their patients regarding treatment options. However, the choice of limb-sparing surgery versus amputation for these challenging patients should still be a highly individualized decision with careful discussion between the patient and the surgeon. LEVEL OF EVIDENCE Level III, therapeutic study.
Collapse
|
28
|
Liu D, Jiang J, Wang L, Liu J, Jin Z, Gao L, Hua Y, Cai Z, Hua Z. In vitro experimental and numerical study on biomechanics and stability of a novel adjustable hemipelvic prosthesis. J Mech Behav Biomed Mater 2019; 90:626-34. [PMID: 30500700 DOI: 10.1016/j.jmbbm.2018.10.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 04/19/2018] [Accepted: 10/30/2018] [Indexed: 10/28/2022]
Abstract
Hemipelvic prostheses are used to reconstruct the damaged pelvis due to bone tumors and traumas. However, biomechanical properties of the reconstructed pelvis remain unclear, causing difficulties to implant development and prediction of surgical outcome. In this study, a novel adjustable hemipelvic prosthesis for the Type 1-3 pelvis resection was used to reconstruct the intact pelvic ring. Two types of Pedicle Screw Rod Systems were proposed to improve the stability of fixation between the prosthesis and the bone. Finite Element models of the reconstructed pelvis were built to analyze the performance of the prosthesis and PSRS. Moreover, an in vitro experimental study was performed to measure the deformation of the human reconstructed pelvis. Numerical results agree well with the experimental data. It was found that displacements and stresses bilaterally transferred more evenly in the reconstructed pelvis enhanced by bilateral Pedicle Screw Rod System. The load-transfer function of the pelvis under double-leg standing stance could be recovered. The bilateral pedicle system has better biomechanical performance than the unilateral pedicle system.
Collapse
|
29
|
Zhang Y, Tang X, Ji T, Yan T, Yang R, Yang Y, Wei R, Liang H, Guo W. Is a Modular Pedicle-hemipelvic Endoprosthesis Durable at Short Term in Patients Undergoing Enneking Type I + II Tumor Resections With or Without Sacroiliac Involvement? Clin Orthop Relat Res 2018; 476:1751-61. [PMID: 30794212 DOI: 10.1007/s11999.0000000000000121] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Functional reconstruction after Enneking Type I + II resections of the pelvis (those involving both the ilium and the acetabulum) is challenging, especially if resection of part of the sacrum is included. To assess the clinical outcomes of a newly designed modular pedicle-hemipelvic endoprosthesis, we performed a preliminary retrospective study on its clinical use in a small group of patients. QUESTIONS/PURPOSES The purposes of this study were (1) to evaluate in a small case series whether the new endoprosthesis restored lower limb function and lumbopelvic stability in the short term; (2) to identify the complications associated with use of the new prosthesis; and (3) to assess the 5-year cumulative survival, the cumulative incidence of a major postoperative event, and the cumulative incidence of implant failure in this group of patients. METHODS Between August 2012 and August 2014, our center performed 274 internal hemipelvectomies for oncologic indications. Among these, 20 were treated with the new endoprosthesis, which was designed for fixation both to the residual sacrum as well as the lumbar spine. An earlier version of the device had been removed from the market because of an unacceptable risk of serious complications. All of the 20 tumors were sarcomas necessitating en bloc resection. The implant is modular and can meet the different-sized defects in each patient. The general indication for use of the new implant was a total acetabular defect with extensive iliac involvement or total loss of the sacroiliac joint and/or hemisacrum. All 20 patients were followed up for a minimum of 24 months or until death in those patients who survived < 2 years (median, 36 months; range, 6-60 months). The clinical data were retrieved from the database and the study endpoints (function according to the Musculoskeletal Tumor Society [MSTS] score, complications, and survivorship of patients and implants) were ascertained by chart review. Lumbopelvic stability was defined as an excellent or good rating according to the International Society of Limb Salvage radiologic implant evaluation system. The cumulative survival of patients was estimated using the Kaplan-Meier approach. The cumulative incidence of major postoperative events including local recurrence, metastasis, and reoperation was estimated using a competing events analysis; the cumulative incidence of implant failure, including mechanical failure or deep infection, in patients who underwent reoperation was also estimated using a competing events analysis. RESULTS In the 16 patients who survived > 12 months, the median MSTS score was 19 of 30 (range, 5-26). Radiographic assessments demonstrated lumbopelvic stability in all of the 16 patients. Twelve of 20 patients developed postoperative complications, primarily including deep infection (one), hip dislocation (two), and local recurrence (three). Major revision surgery was performed in five of 20 patients. The estimated 5-year Kaplan-Meier patient survival rate was 69% (95% confidence interval [CI], 59%-79%), whereas the cumulative incidence of major postoperative events and implant failure using the competing risk estimator was 42% (95% CI, 23%-60%) and 15% (95% CI, 4%-34%) at 5 years, respectively. CONCLUSIONS Preliminary results with hemipelvic reconstruction using this new endoprosthesis achieved fair functional results and the complications that were observed appeared comparable to other reconstruction options at short-term followup. Longer-term surveillance is called for to see whether this implant will be durable compared with other available reconstructive alternatives such as a custom-made megaendoprosthesis or an autograft/allograft-prosthetic composite. LEVEL OF EVIDENCE Level IV, therapeutic study.
Collapse
|
30
|
Guzik G. Oncological, surgical and functional results of the treatment of patients after hemipelvectomy due to metastases. BMC Musculoskelet Disord 2018; 19:63. [PMID: 29463255 PMCID: PMC5819657 DOI: 10.1186/s12891-018-1979-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Accepted: 02/14/2018] [Indexed: 11/25/2022] Open
Affiliation(s)
- Grzegorz Guzik
- Department of Orthopaedic Oncology, Specialist Hospital in Brzozów- Podkarpacie Oncology Centre, Bielawskiego 18, 36-200, Brzozów, Poland.
| |
Collapse
|
31
|
Issa SP, Biau D, Babinet A, Dumaine V, Le Hanneur M, Anract P. Pelvic reconstructions following peri-acetabular bone tumour resections using a cementless ice-cream cone prosthesis with dual mobility cup. International Orthopaedics (SICOT) 2018; 42:1987-1997. [DOI: 10.1007/s00264-018-3785-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 01/16/2018] [Indexed: 10/18/2022]
|
32
|
Brown TS, Salib CG, Rose PS, Sim FH, Lewallen DG, Abdel MP. Reconstruction of the hip after resection of periacetabular oncological lesions: a systematic review. Bone Joint J 2018; 100-B:22-30. [PMID: 29292336 PMCID: PMC6424434 DOI: 10.1302/0301-620x.100b1.bjj-2017-0548.r1] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 06/07/2017] [Indexed: 11/09/2022]
Abstract
Aims Reconstruction of the acetabulum after resection of a periacetabular
malignancy is technically challenging and many different techniques
have been used with varying success. Our aim was to prepare a systematic
review of the literature dealing with these techniques in order
to clarify the management, the rate of complications and the outcomes. Patients and Methods A search of PubMed and MEDLINE was conducted for English language
articles published between January 1990 and February 2017 with combinations
of key search terms to identify studies dealing with periacetabular
resection with reconstruction in patients with a malignancy. Studies
in English that reported radiographic or clinical outcomes were
included. Data collected from each study included: the number and
type of reconstructions, the pathological diagnosis of the lesions,
the mean age and follow-up, gender distribution, implant survivorship, complications,
functional outcome, and mortality. The results from individual studies
were combined for the general analysis, and then grouped according
to the type of reconstruction. Results A total of 57 studies met the inclusion criteria and included
1700 patients. Most lesions were metastatic (41%), followed by chondrosarcoma
(29%), osteosarcoma (10%), Ewing’s sarcoma (7%), and multiple myeloma
(2%). The techniques of reconstruction were divided into seven types
for analysis: those involving a Harrington reconstruction, a saddle
prosthesis, an allograft and allograft prosthesis composite, a pasteurised
autograft, a porous tantalum implant, a custom-made prosthesis and
a modular hemipelvic reconstruction. The rate of complications was
50%, with infection (14%) and instability (8%) being the most common.
Mortality data were available for 1427 patients (84%); 50% had died
of disease progression, 23% were alive with disease, and 27% had no
evidence of disease at a mean follow-up of 3.4 years (0 to 34). Conclusion Both the rate of complications and mortality are high following
resection of oncological periacetabular lesions and reconstruction.
Many types of reconstruction have been used with unique challenges
and complications for each technique. Newer prostheses, including
custom-made prostheses and porous tantalum implants and augments, have
shown promising early functional and radiographic outcomes. Cite this article: Bone Joint J 2018;100-B(1
Supple A):22–30.
Collapse
Affiliation(s)
- T S Brown
- Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - C G Salib
- Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - P S Rose
- Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - F H Sim
- Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - D G Lewallen
- Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - M P Abdel
- Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| |
Collapse
|
33
|
Lee SY, Jeon DG, Cho WH, Song WS, Kong CB. Comparison of Pasteurized Autograft-Prosthesis Composite Reconstruction and Resection Hip Arthroplasty for Periacetabular Tumors. Clin Orthop Surg 2017; 9:374-385. [PMID: 28861206 PMCID: PMC5567034 DOI: 10.4055/cios.2017.9.3.374] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 03/04/2017] [Indexed: 12/03/2022] Open
Abstract
Background Because of the high complication rate of anatomical reconstruction after periacetabular resection, the strategy of resection alone has been revisited. However, in terms of complications and functional outcome, whether resection hip arthroplasty (RHA) shows a superior result to that of pelvic ring reconstruction remains controversial. Methods We compared 24 RHAs and 16 pasteurized autograft-prosthesis composite (PPC) reconstructions regarding the complication rates, operative time, blood loss, and functional outcome. Results Compared to 16 PPC hips, 24 RHA hips showed lower major and minor complication rates (p < 0.001), shorter surgical time (p < 0.001), and superior Musculoskeletal Tumor Society scores (p < 0.001). Of the 24 RHA hips, bony neo-acetabulum was identified in 7 on computed tomography and partial neo-acetabulum in 9; the remaining 8 had no bony acetabular structure. The average time to bony neo-acetabulum formation was 7 months (range, 4 to 13 months). Conclusions RHA for periacetabular tumors can be an excellent alternative to anatomical reconstruction. It offers short surgical time, low complication rates, and functional results comparable to those of other reconstruction methods. However, this procedure is indicated for patients who can accept some limb shortening, and a tumor should be confined to the periacetabular area.
Collapse
Affiliation(s)
- Seung Yong Lee
- Department of Orthopedic Surgery, Korea Cancer Center Hospital, Seoul, Korea
| | - Dae-Geun Jeon
- Department of Orthopedic Surgery, Korea Cancer Center Hospital, Seoul, Korea
| | - Wan Hyeong Cho
- Department of Orthopedic Surgery, Korea Cancer Center Hospital, Seoul, Korea
| | - Won Seok Song
- Department of Orthopedic Surgery, Korea Cancer Center Hospital, Seoul, Korea
| | - Chang-Bae Kong
- Department of Orthopedic Surgery, Korea Cancer Center Hospital, Seoul, Korea
| |
Collapse
|
34
|
Stihsen C, Panotopoulos J, Puchner SE, Sevelda F, Kaider A, Windhager R, Funovics PT. The outcome of the surgical treatment of pelvic chondrosarcomas: a competing risk analysis of 58 tumours from a single centre. Bone Joint J 2017; 99-B:686-696. [PMID: 28455480 DOI: 10.1302/0301-620x.99b5.bjj-2016-0761.r1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 12/09/2016] [Indexed: 11/05/2022]
Abstract
AIMS Few studies dealing with chondrosarcoma of the pelvis are currently available. Different data about the overall survival and prognostic factors have been published but without a detailed analysis of surgery-related complications. We aimed to analyse the outcome of a series of pelvic chondrosarcomas treated at a single institution, with particular attention to the prognostic factors. Based on a competing risk model, our objective was to identify risk factors for the development of complications. PATIENTS AND METHODS In a retrospective single-centre study, 58 chondrosarcomas (26 patients alive, 32 patients dead) of the pelvis were reviewed. The mean follow-up was 13 years (one week to 23.1 years). RESULTS A total of 26 patients (45%) were alive and 32 patients (55%) had died. Overall survival was 76%, 55% and 45% at one, five and ten years post-operatively, respectively. In a competing risk model the cumulative risk of the development of a surgery-related complication was 64% at six months and 69% at one year, post-operatively, respectively. Endoprosthetic reconstruction was a significant risk factor for the development of complications (p = 0.006). Complications were not significantly related to age or the location or grade of the tumour (p = 0.823, p = 0.976, p = 0.858). The development of complications did not have a negative effect on survival (p = 0.147). CONCLUSION This is the first study with competing risk analysis of surgery-related complications in patients with a pelvic chondrosarcoma. The surgery in these patients remains prone to complications. Endoprosthetic reconstruction significantly increases the risk of the development of complications (p = 0.006). A competing risk model showed that the development of complications does not have a negative influence on overall survival (p = 0.147). An aggressive, surgical resection with the goal of achieving wide margins whenever possible remains the mainstay of treatment. Cite this article: Bone Joint J 2017;99-B:686-96.
Collapse
Affiliation(s)
- C Stihsen
- Department of Orthopaedics, Medical University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria
| | - J Panotopoulos
- Department of Orthopaedics, Medical University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria
| | - S E Puchner
- Department of Orthopaedics, Medical University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria
| | - F Sevelda
- Department of Orthopaedics, Medical University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria
| | - A Kaider
- Medical University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria
| | - R Windhager
- Department of Orthopaedics, Medical University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria
| | - P T Funovics
- Medical University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria
| |
Collapse
|
35
|
Abstract
BACKGROUND Malignant bone tumors themselves and the wide resection required because of them may cause huge bone defects in the bone segment involved. Autologous bone grafts are a reliable option to cover these defects in many cases but their availability is limited. Besides common alternative reconstruction methods, including the use of allografts and/or prostheses, especially extracoroporeal irradiation (ECI) and reimplantation of the bone segment involved is attracting increasingly more attention nowadays. DISCUSSION In the following, we report on indications/contraindications, details of the operative technique, as well as the recommended rehabilitation regime of ECI. Furthermore, we compare our own results with those published in the recent literature. Especially the advantages and disadvantages of this method, the risks and the complications are illustrated and critically discussed. CONCLUSION Extracorporeal irradiation of a tumor bearing bone segment is a valuable alternative reconstruction technique following tumor resections of the pelvis, femur and tibia, with encouraging results with respect to local control, complication risks and functional outcome.
Collapse
Affiliation(s)
- A H Krieg
- Knochen- und Weichteiltumorzentrum der Universität Basel (KWUB), Kinderorthopädie, Universitätskinderspital beider Basel (UKBB), Spitalstr. 33, 4056, Basel, Schweiz.
| |
Collapse
|
36
|
Hipfl C, Stihsen C, Puchner SE, Kaider A, Dominkus M, Funovics PT, Windhager R. Pelvic reconstruction following resection of malignant bone tumours using a stemmed acetabular pedestal cup. Bone Joint J 2017; 99-B:841-848. [DOI: 10.1302/0301-620x.99b6.bjj-2016-0944.r1] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 01/13/2017] [Indexed: 11/05/2022]
Abstract
Aims Pelvic reconstruction after the resection of a tumour around the acetabulum is a challenging procedure due to the complex anatomy and biomechanics. Several pelvic endoprostheses have been introduced, but the rates of complication remain high. Our aim was to review the use of a stemmed acetabular pedestal cup in the management of these patients. Patients and Methods The study involved 48 patients who underwent periacetabular reconstruction using a stemmed pedestal cup (Schoellner cup; Zimmer Biomet Inc., Warsaw, Indiana) between 2000 and 2013. The indications for treatment included a primary bone tumour in 27 patients and metastatic disease in 21 patients. The mean age of the patients at the time of surgery was 52 years (16 to 83). Results At a median follow-up of 6.6 years (95% confidence interval 4.6 to 8.2), local control was achieved in all patients; 19 patients had died (16 of disease). Complications occurred in 19 patients (40%), of which deep infection was the most common, affecting eight patients (17%). Seven patients (15%) had a dislocation of the hip. Aseptic loosening was found in three patients (6%). Two (4%) underwent hindquarter amputation for non-oncological reasons. The risk of revision, with death being treated as a competing event, was 28% at one year, 39% at five years and 48% at ten years post-operatively. The mean Musculoskeletal Tumour Society Score at final follow-up was 71% (27% to 93%). Conclusion This type of reconstruction is a satisfactory option for the treatment of patients with a periacetabular tumour. There remains, however, a high rate of complication, which may be reduced by future modifications of the device such as silver coating and tripolar articulation. Cite this article: Bone Joint J 2017;99-B:841–8.
Collapse
Affiliation(s)
- C. Hipfl
- Vienna General Hospital, Waehringer
Gürtel 18-20, 1090 Vienna, Austria
| | - C. Stihsen
- Vienna General Hospital, Waehringer
Gürtel 18-20, 1090 Vienna, Austria
| | - S. E. Puchner
- Vienna General Hospital, Waehringer
Gürtel 18-20, 1090 Vienna, Austria
| | - A. Kaider
- Vienna General Hospital, Waehringer
Gürtel 18-20, 1090 Vienna, Austria
| | - M. Dominkus
- Vienna General Hospital, Waehringer
Gürtel 18-20, 1090 Vienna, Austria
| | - P. T. Funovics
- Vienna General Hospital, Waehringer
Gürtel 18-20, 1090 Vienna, Austria
| | - R. Windhager
- Vienna General Hospital, Waehringer
Gürtel 18-20, 1090 Vienna, Austria
| |
Collapse
|
37
|
Severyns M, Briand S, Waast D, Touchais S, Hamel A, Gouin F. Postoperative infections after limb-sparing surgery for primary bone tumors of the pelvis: Incidence, characterization and functional impact. Surg Oncol 2017; 26:171-177. [PMID: 28577723 DOI: 10.1016/j.suronc.2017.03.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 03/12/2017] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Surgical site infections (SSI) represent the most common postoperative complication after limb sparing surgery for primary malignant bone tumors, with incidence ranging from 10 to 47%. There is no consensus concerning about the optimal surgical strategy, or the adequate antibiotic prophylaxis in pelvic resections. A greater knowledge of these infections and their surgical trajectories seem essential to obtain. MATERIALS AND METHODS We retrospectively studied 45 cases of pelvic resection, including at least the periacetabular zone 2 of Enneking, performed between 1989 and 2013 in the same center. Infection rate, risk factors and surgical trajectories were analyzed. The impact of a postoperative infection on the quality of life and functional recovery was evaluated by the Musculoskeletal Tumor Society scoring system (MSTS). RESULTS Sixteen patients presented a SSI in the first post-operative year (35.6%). We found as risk factors the pre-operative ASA score, the age at surgery and the number of packed red cells transfused during surgery. In case of failure of an initial washout, an iterative procedure is responsible for a high failure rate of 88.9%. Irrespective of the type of reconstruction, our functional results show that this surgery is often a source of handicap with a MSTS score of 13.77 in infected patients versus 17.70 in non-infected patients, at two-year follow-up. DISCUSSION In case of failure of an initial wash, prosthetic material must be removed and a hip transposition procedure should be preferred to a second-look surgery. Concerning prophylactic antibiotherapy, a dual therapy for at least 48 h after surgery should probably be preferred.
Collapse
Affiliation(s)
- M Severyns
- Orthopedic and Traumatology Department, CHU Nantes, Hôtel Dieu, Place Alexis Ricordeau, 44093 Nantes, France.
| | - S Briand
- Orthopedic and Traumatology Department, CHU Nantes, Hôtel Dieu, Place Alexis Ricordeau, 44093 Nantes, France; Inserm UMR1238, Bone Sarcomas and Remodelling of Calcified Tissue, Faculté de Médecine, Université de Nantes, France
| | - D Waast
- Orthopedic and Traumatology Department, CHU Nantes, Hôtel Dieu, Place Alexis Ricordeau, 44093 Nantes, France
| | - S Touchais
- Orthopedic and Traumatology Department, CHU Nantes, Hôtel Dieu, Place Alexis Ricordeau, 44093 Nantes, France
| | - A Hamel
- Department of Pediatric Surgery, CHU Nantes, Pavillon de la Mère et de l'Enfant, 44093 Nantes, France
| | - F Gouin
- Orthopedic and Traumatology Department, CHU Nantes, Hôtel Dieu, Place Alexis Ricordeau, 44093 Nantes, France; Inserm UMR1238, Bone Sarcomas and Remodelling of Calcified Tissue, Faculté de Médecine, Université de Nantes, France
| |
Collapse
|
38
|
Bus MPA, Szafranski A, Sellevold S, Goryn T, Jutte PC, Bramer JAM, Fiocco M, Streitbürger A, Kotrych D, van de Sande MAJ, Dijkstra PDS. LUMiC ® Endoprosthetic Reconstruction After Periacetabular Tumor Resection: Short-term Results. Clin Orthop Relat Res 2017; 475:686-695. [PMID: 27020434 PMCID: PMC5289170 DOI: 10.1007/s11999-016-4805-4] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Reconstruction of periacetabular defects after pelvic tumor resection ranks among the most challenging procedures in orthopaedic oncology, and reconstructive techniques are generally associated with dissatisfying mechanical and nonmechanical complication rates. In an attempt to reduce the risk of dislocation, aseptic loosening, and infection, we introduced the LUMiC® prosthesis (implantcast, Buxtehude, Germany) in 2008. The LUMiC® prosthesis is a modular device, built of a separate stem (hydroxyapatite-coated uncemented or cemented) and acetabular cup. The stem and cup are available in different sizes (the latter of which is also available with silver coating for infection prevention) and are equipped with sawteeth at the junction to allow for rotational adjustment of cup position after implantation of the stem. Whether this implant indeed is durable at short-term followup has not been evaluated. QUESTIONS/PURPOSES (1) What proportion of patients experience mechanical complications and what are the associated risk factors of periacetabular reconstruction with the LUMiC® after pelvic tumor resection? (2) What proportion of patients experience nonmechanical complications and what are the associated risk factors of periacetabular reconstruction with the LUMiC® after pelvic tumor resection? (3) What is the cumulative incidence of implant failure at 2 and 5 years and what are the mechanisms of reconstruction failure? (4) What is the functional outcome as assessed by Musculoskeletal Tumor Society (MSTS) score at final followup? METHODS We performed a retrospective chart review of every patient in whom a LUMiC® prosthesis was used to reconstruct a periacetabular defect after internal hemipelvectomy for a pelvic tumor from July 2008 to June 2014 in eight centers of orthopaedic oncology with a minimum followup of 24 months. Forty-seven patients (26 men [55%]) with a mean age of 50 years (range, 12-78 years) were included. At review, 32 patients (68%) were alive. The reverse Kaplan-Meier method was used to calculate median followup, which was equal to 3.9 years (95% confidence interval [CI], 3.4-4.3). During the period under study, our general indications for using this implant were reconstruction of periacetabular defects after pelvic tumor resections in which the medial ilium adjacent to the sacroiliac joint was preserved; alternative treatments included hip transposition and saddle or custom-made prostheses in some of the contributing centers; these were generally used when the medial ilium was involved in the tumorous process or if the LUMiC® was not yet available in the specific country at that time. Conventional chondrosarcoma was the predominant diagnosis (n = 22 [47%]); five patients (11%) had osseous metastases of a distant carcinoma and three (6%) had multiple myeloma. Uncemented fixation (n = 43 [91%]) was preferred. Dual-mobility cups (n = 24 [51%]) were mainly used in case of a higher presumed risk of dislocation in the early period of our study; later, dual-mobility cups became the standard for the majority of the reconstructions. Silver-coated acetabular cups were used in 29 reconstructions (62%); because only the largest cup size was available with silver coating, its use depended on the cup size that was chosen. We used a competing risk model to estimate the cumulative incidence of implant failure. RESULTS Six patients (13%) had a single dislocation; four (9%) had recurrent dislocations. The risk of dislocation was lower in reconstructions with a dual-mobility cup (one of 24 [4%]) than in those without (nine of 23 [39%]) (hazard ratio, 0.11; 95% CI, 0.01-0.89; p = 0.038). Three patients (6%; one with a preceding structural allograft reconstruction, one with poor initial fixation as a result of an intraoperative fracture, and one with a cemented stem) had loosening and underwent revision. Infections occurred in 13 reconstructions (28%). Median duration of surgery was 6.5 hours (range, 4.0-13.6 hours) for patients with an infection and 5.3 hours (range, 2.8-9.9 hours) for those without (p = 0.060); blood loss was 2.3 L (range, 0.8-8.2 L) for patients with an infection and 1.5 L (range, 0.4-3.8 L) for those without (p = 0.039). The cumulative incidences of implant failure at 2 and 5 years were 2.1% (95% CI, 0-6.3) and 17.3% (95% CI, 0.7-33.9) for mechanical reasons and 6.4% (95% CI, 0-13.4) and 9.2% (95% CI, 0.5-17.9) for infection, respectively. Reasons for reconstruction failure were instability (n = 1 [2%]), loosening (n = 3 [6%]), and infection (n = 4 [9%]). Mean MSTS functional outcome score at followup was 70% (range, 33%-93%). CONCLUSIONS At short-term followup, the LUMiC® prosthesis demonstrated a low frequency of mechanical complications and failure when used to reconstruct the acetabulum in patients who underwent major pelvic tumor resections, and we believe this is a useful reconstruction for periacetabular resections for tumor or failed prior reconstructions. Still, infection and dislocation are relatively common after these complex reconstructions. Dual-mobility articulation in our experience is associated with a lower risk of dislocation. Future, larger studies will need to further control for factors such as dual-mobility articulation and silver coating. We will continue to follow our patients over the longer term to ascertain the role of this implant in this setting. LEVEL OF EVIDENCE Level IV, therapeutic study.
Collapse
Affiliation(s)
- Michaël P. A. Bus
- Department of Orthopaedic Surgery, Leiden University Medical Center, Albinusdreef 2, 2300 RC Leiden, The Netherlands
| | | | | | - Tomasz Goryn
- Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Paul C. Jutte
- University Medical Center Groningen, Groningen, The Netherlands
| | | | - M. Fiocco
- Department of Medical Statistics and Bioinformatics, Leiden University Medical Center, Leiden, The Netherlands ,Mathematical Institute, Leiden University, Leiden, The Netherlands
| | | | | | - Michiel A. J. van de Sande
- Department of Orthopaedic Surgery, Leiden University Medical Center, Albinusdreef 2, 2300 RC Leiden, The Netherlands
| | - P. D. Sander Dijkstra
- Department of Orthopaedic Surgery, Leiden University Medical Center, Albinusdreef 2, 2300 RC Leiden, The Netherlands
| |
Collapse
|
39
|
Schmolders J, Koob S, Schepers P, Pennekamp PH, Gravius S, Wirtz DC, Placzek R, Strauss AC. Lower limb reconstruction in tumor patients using modular silver-coated megaprostheses with regard to perimegaprosthetic joint infection: a case series, including 100 patients and review of the literature. Arch Orthop Trauma Surg 2017; 137:149-53. [PMID: 27783140 DOI: 10.1007/s00402-016-2584-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Indexed: 10/20/2022]
Abstract
PURPOSE AND OBJECTIVE Bone resection regarding adequate surgical margins is the treatment of choice for malignant bone tumors. In the case of metastasis-related complications, so-called skeletal-related events, it is highly important to achieve pain relief and a stable joint situation to re-mobilize the patients immediately following surgery. To bridge the often large osseous defect zones after tumor resection, both cemented and uncemented modular endoprosthetic systems are widely used. Patients undergoing tumor-related endoprosthetic orthopedic surgery are facing high risk for developing a periprosthetic joint infection (PJI). The immunocompromised condition due to anti-neoplastic treatment and long operation time with large exposure of tissue contributes to a high risk of infection. METHODS The authors present a case series of 100 patients (31% primary bone tumor and 69% metastasis-related surgery) undergoing tumor-related lower limb salvage surgery with special regard to periprosthetic joint infection and the management of this "difficult to treat" situation. Furthermore, a review of the current literature regarding infection following bone tumor resection and endoprosthetic reconstruction is performed and discussed. RESULTS The median follow-up was 24 months (range 12-108 months). Ten patients (10%) suffered from a periprosthetic joint infection. We recorded six acute infections (type I) <4 weeks after surgery, one infection >4 weeks after surgery (type II), and three late infections (type III). According to the definition of Laffer et al., three of our patients (30%) are probably free of infection, one patient died of PJI-associated sepsis, and five patients were free of infection, but without restoration of the affected joint. CONCLUSION In conclusion, our own results show that perimegaprosthetic joint infection among silver-coated implants, in patients undergoing tumor-related surgery of the lower limb, is lower compared to non-silver-coated implants. Due to heterogeneity of patients and potential treatment options, the treatment regime should be tailored for the patients' individual situation.
Collapse
|
40
|
Abdel MP, von Roth P, Perry KI, Rose PS, Lewallen DG, Sim FH. Early Results of Acetabular Reconstruction After Wide Periacetabular Oncologic Resection. J Bone Joint Surg Am 2017; 99:e9. [PMID: 28145959 DOI: 10.2106/jbjs.16.00803] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Reliable acetabular fixation in total hip arthroplasty following periacetabular resections is challenging. Tantalum components have been successfully implemented for difficult revision arthroplasties, but, to our knowledge, have not been reported for acetabular reconstruction following oncologic periacetabular resection. The primary purpose of the current study was to determine the early clinical outcomes, complications, and radiographic findings for acetabular reconstruction after oncologic periacetabular resection. In addition, a novel classification scheme for primary periacetabular resections and reconstructions is presented. METHODS We reviewed 10 consecutive patients treated with tantalum acetabular reconstruction following periacetabular resection. All patients had a primary acetabular malignancy including chondrosarcoma (n = 7) and osteosarcoma (n = 3). The cohort included 6 males (60%). The mean age was 54 years (range, 30 to 73 years). The mean follow-up was 59 months (range, 8 to 113 months). RESULTS At the most recent follow-up, 9 patients were alive and 1 had died of the respective disease. All patients obtained full ambulatory status with the use of gait aids. Postoperative complications included dislocation (n = 3), wound-healing disturbance (n = 1), and deep venous thrombosis (n = 1). Two patients underwent reoperations for recurrent dislocations. The mean postoperative Harris hip score was 75 points (range, 49 to 92 points). CONCLUSIONS Preliminary results of tantalum reconstruction following periacetabular resections provide reasonable improvement in early clinical outcomes and stable fixation in situations with massive bone loss and compromised bone quality. As expected due to the lack of a functioning abductor mechanism from the wide oncologic resection, early dislocations remain a concern. As such, we now consider the primary use of increasing constraint, but it must be balanced with the often compromised host bone. LEVEL OF EVIDENCE Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Collapse
Affiliation(s)
- Matthew P Abdel
- 1Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota 2Department of Orthopedic Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
| | | | | | | | | | | |
Collapse
|
41
|
Liang H, Ji T, Zhang Y, Wang Y, Guo W. Reconstruction with 3D-printed pelvic endoprostheses after resection of a pelvic tumour. Bone Joint J 2017; 99-B:267-275. [PMID: 28148672 DOI: 10.1302/0301-620x.99b2.bjj-2016-0654.r1] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 09/28/2016] [Indexed: 11/05/2022]
Abstract
Aims The aims of this retrospective study were to report the feasibility of using 3D-printing technology for patients with a pelvic tumour who underwent reconstruction. Patients and Methods A total of 35 patients underwent resection of a pelvic tumour and reconstruction using 3D-printed endoprostheses between September 2013 and December 2015. According to Enneking’s classification of bone defects, there were three Type I lesions, 12 Type II+III lesions, five Type I+II lesions, two Type I+II+III lesions, ten type I+II+IV lesions and three type I+II+III+IV lesions. A total of three patients underwent reconstruction using an iliac prosthesis, 12 using a standard hemipelvic prosthesis and 20 using a screw-rod connected hemipelvic prosthesis. Results All patients had an en bloc resection. Margins were wide in 15 patients, marginal in 14 and intralesional in six. After a mean follow-up of 20.5 months (6 to 30), 25 patients survived without evidence of disease, five were alive with disease and five had died from metastatic disease. Complications included seven patients with delayed wound healing and two with a dislocation of the hip. None had a deep infection. For the 30 surviving patients, the mean Musculoskeletal Society 93 score was 22.7 (20 to 25) for patients with an iliac prosthesis, 19.8 (15 to 26) for those with a standard prosthesis, and 17.7 (9 to 25) for those with a screw-rod connected prosthesis. Conclusion The application of 3D-printing technology can facilitate the precise matching and osseointegration between implants and the host bone. We found that the use of 3D-printed pelvic prostheses for reconstruction of the bony defect after resection of a pelvic tumour was safe, without additional complications, and gave good short-term functional results. Cite this article: Bone Joint J 2017;99-B:267–75.
Collapse
Affiliation(s)
- H. Liang
- Peking University People’s Hospital, and
Key Laboratory for Musculoskeletal Tumor of Beijing, Xizhimen
Nan 11, Xicheng District, Beijing
100044, China
| | - T. Ji
- Peking University People’s Hospital, and
Key Laboratory for Musculoskeletal Tumor of Beijing, Xizhimen
Nan 11, Xicheng District, Beijing
100044, China
| | - Y. Zhang
- Peking University People’s Hospital, and
Key Laboratory for Musculoskeletal Tumor of Beijing, Xizhimen
Nan 11, Xicheng District, Beijing
100044, China
| | - Y. Wang
- Peking University People’s Hospital, and
Key Laboratory for Musculoskeletal Tumor of Beijing, Xizhimen
Nan 11, Xicheng District, Beijing
100044, China
| | - W. Guo
- Peking University People’s Hospital, and
Key Laboratory for Musculoskeletal Tumor of Beijing, Xizhimen
Nan 11, Xicheng District, Beijing
100044, China
| |
Collapse
|
42
|
Liu D, Hua Z, Yan X, Jin Z. Design and biomechanical study of a novel adjustable hemipelvic prosthesis. Med Eng Phys 2016; 38:1416-1425. [PMID: 27720636 DOI: 10.1016/j.medengphy.2016.09.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Revised: 09/01/2016] [Accepted: 09/23/2016] [Indexed: 10/20/2022]
Abstract
A pelvic endoprosthesis is commonly used in orthopedic surgeries to reconstruct the pelvis after internal hemipelvectomy. This study presents the detailed design of a novel type I+II+III adjustable hemipelvic prosthesis based on the geometrical features of massive human pelvises. Finite element analysis is conducted to estimate the biomechanical performance of the newly designed adjustable hemipelvic prosthesis. Detailed numerical models of the natural and reconstructed pelvises including related soft tissues are developed. Hip contact forces during normal walking, which is one of the most frequent dynamic activities in daily living, are imposed on the pelvis. Results show that the peak stress observed in the reconstructed pelvis model is still within a low and elastic range below the yielding strength of the cortical bone and Ti6Al4V. No significant difference of the stress transferring route, displacement distributions and principal stress vectors is observed between the reconstructed and natural pelvises. The results indicate that the load transferring function of the partially resected pelvis is able to be reliably recovered by the adjustable hemipelvic prosthesis. The principal stress vectors in both pelvis models predict that bone absorption may not apparently occur in the long run. Long-term biomechanical performance of this newly designed prosthesis may be stability.
Collapse
Affiliation(s)
- Dongxu Liu
- School of Mechatronics Engineering and Automation, Shanghai University, No. 149, Yanchang Rd, 200072 Shanghai, PR China
| | - Zikai Hua
- School of Mechatronics Engineering and Automation, Shanghai University, No. 149, Yanchang Rd, 200072 Shanghai, PR China.
| | - Xinyi Yan
- School of Mechatronics Engineering and Automation, Shanghai University, No. 149, Yanchang Rd, 200072 Shanghai, PR China
| | - Zhongmin Jin
- School of Mechanical Engineering, Xi'an Jiaotong University, PR China; School of Mechanical Engineering, University of Leeds, UK
| |
Collapse
|
43
|
Singh VA, Elbahri H, Shanmugam R. Biomechanical Analysis of a Novel Acetabulum Reconstruction Technique with Acetabulum Reconstruction Cage and Threaded Rods after Type II Pelvic Resections. Sarcoma 2016; 2016:8627023. [PMID: 27340368 DOI: 10.1155/2016/8627023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 05/11/2016] [Indexed: 11/17/2022] Open
Abstract
Background. Periacetabular resections with reconstruction has high rates of complications due to the complexity of the reconstruction. We have improvised a novel technique of reconstruction for type II and type II + III pelvic resections with the use of a commercially available acetabulum reconstruction cage (gap II, Stryker) and threaded rods. Objectives. The aim of our study is to determine the biomechanical strength of our reconstruction compared to the traditional cemented total hip replacement (THR) designs in normal acetabulum and establish its mode of failure. Methods. Five sets of hemipelvises were biomechanically tested (Instron® 3848, MA, USA). These constructs were subjected to cyclic loading and load to failure. Results. The reconstructed acetabulum was stiffer and required a higher load to failure compared to the intact pelvis with a standard THR. The mean stiffness of the reconstructed pelvis was 1738.6 ± 200.3 Nmm−1 compared to the intact pelvis, which was 911.4 ± 172.7 Nmm−1 (P value = 0.01). The mean load to failure for the standard acetabular cup construct was 3297.3 ± 117.7 N while that of the reconstructed pelvis with the acetabulum cage and threaded rods was 4863.8 ± 7.0 N. Conclusion. Reconstruction of the pelvis with an acetabular reconstruction cage and threaded rods is a biomechanical viable option.
Collapse
|
44
|
Zhou YJ, Yunus A, Tian Z, Chen JT, Wang C, Xu LL, Song XH. The pedicle screw-rod system is an acceptable method of reconstructive surgery after resection of sacroiliac joint tumours. Contemp Oncol (Pozn) 2016; 20:73-9. [PMID: 27095944 DOI: 10.5114/wo.2016.58503] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 11/12/2013] [Indexed: 11/17/2022] Open
Abstract
Hemipelvic resections for primary bone tumours require reconstruction to restore weight bearing along anatomic axes. However, reconstruction of the pelvic arch remains a major surgical challenge because of the high rate of associated complications. We used the pedicle screw-rod system to reconstruct the pelvis, and the purpose of this investigation was to assess the oncology, functional outcome and complication rate following this procedure. The purpose of this study was to investigate the operative indications and technique of the pedicle screw-rod system in reconstruction of the stability of the sacroiliac joint after resection of sacroiliac joint tumours. The average MSTS (Musculoskeletal Tumour Society) score was 26.5 at either three months after surgery or at the latest follow-up. Seven patients had surgery-related complications, including wound dehiscence in one, infection in two, local necrosis in four (including infection in two), sciatic nerve palsy in one and pubic symphysis subluxation in one. There was no screw loosening or deep vein thrombosis occurring in this series. Using a pedicle screw-rod after resection of a sacroiliac joint tumour is an acceptable method of pelvic reconstruction because of its reduced risk of complications and satisfactory functional outcome, as well as its feasibility of reconstruction for type IV pelvis tumour resection without elaborate preoperative customisation. Level of evidence: Level IV, therapeutic study.
Collapse
|
45
|
Parry MC, Laitinen M, Albergo J, Jeys L, Carter S, Gaston CL, Sumathi V, Grimer RJ. Osteosarcoma of the pelvis. Bone Joint J 2016; 98-B:555-63. [DOI: 10.1302/0301-620x.98b4.36583] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 10/27/2015] [Indexed: 11/05/2022]
Abstract
Aims Osteosarcoma of the pelvis is a particularly difficult tumour to treat as it often presents late, may be of considerable size and/or associated with metastases when it presents, and is frequently chondroid in origin and resistant to chemotherapy. The aim of this study was to review our experience of managing this group of patients and to identify features predictive of a poor outcome. Patients and Methods Between 1983 and 2014, 121 patients, (74 females and 47 males) were treated at a single hospital: 74 (61.2%) patients had a primary osteosarcoma and 47 (38.8%) had an osteosarcoma which was secondary either to Paget’s disease (22; 18.2%) or to previous pelvic irradiation (25; 20.7%). The mean age of those with a primary osteosarcoma was 29.3 years (nine to 76) and their mean follow-up 2.9 years (0 to 29). The mean age of those with a secondary sarcoma was 61.9 years (15 to 85) and their mean follow-up was one year (0 to 14). A total of 22 patients with a primary sarcoma (52.4%) and 20 of those with a secondary sarcoma (47.6%) had metastases at the time of presentation. Results The disease-specific survival at five years for all patients was 27.2%. For those without metastases at the time of diagnosis, the five-year survival was 32.7%. Factors associated with a poor outcome were metastases at diagnosis and secondary tumours. In primary osteosarcoma, sacral location, surgical margin and a diameter > 10 cm were associated with a poor outcome. Conclusion In this, the largest single series of patients with an osteosarcoma of the pelvis treated in a single hospital, those with secondary tumours and those with metastases at presentation had a particularly poor outcome. For those with a primary sarcoma, sacral location, an intralesional margin and a diameter of > 10 cm were poor prognostic indicators. Cite this article: Bone Joint J 2016;98-B:555–63.
Collapse
Affiliation(s)
- M. C. Parry
- The Royal Orthopaedic Hospital, Bristol
Road South, Birmingham, B31
2AP, UK
| | - M. Laitinen
- Tampere University Hospital, Tampere,
Finland and, Oncology Unit, Royal Orthopaedic
Hospital NHS Foundation Trust, Birmingham, UK
| | - J. Albergo
- Hospital Italiano Buenos Aires, Buenos
Aires, Argentina and, Oncology Unit, Royal Orthopaedic
Hospital NHS Foundation Trust, Birmingham, UK
| | - L. Jeys
- The Royal Orthopaedic Hospital, Bristol
Road South, Birmingham, B31
2AP, UK
| | - S. Carter
- The Royal Orthopaedic Hospital, Bristol
Road South, Birmingham, B31
2AP, UK
| | - C. L. Gaston
- The Royal Orthopaedic Hospital, Bristol
Road South, Birmingham, B31
2AP, UK
| | - V. Sumathi
- The Royal Orthopaedic Hospital, Bristol
Road South, Birmingham, B31
2AP, UK
| | - R. J. Grimer
- The Royal Orthopaedic Hospital, Bristol
Road South, Birmingham, B31
2AP, UK
| |
Collapse
|
46
|
Danışman M, Mermerkaya MU, Bekmez Ş, Ayvaz M, Atilla B, Tokgözoğlu AM. Reconstruction of periacetabular tumours with saddle prosthesis or custom-made prosthesis, functional results and complications. Hip Int 2016; 26:e14-8. [PMID: 26868113 DOI: 10.5301/hipint.5000306] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/16/2015] [Indexed: 02/04/2023]
Abstract
Reconstruction after resection of pelvic tumours is a major challenge. We report the outcomes and complications of 7 patients who underwent limb salvage following type II or type II, III pelvic resection and reconstruction using a saddle prosthesis or custom-made hemipelvic prosthesis. In our opinion, reconstruction using custom-made prostheses is better than placement of saddle prostheses because of a lower risk of complications and improved functional outcomes.
Collapse
|
47
|
Ng VY, Jones R, Bompadre V, Louie P, Punt S, Conrad EU. The effect of surgery with radiation on pelvic Ewing sarcoma survival. J Surg Oncol 2015; 112:861-5. [PMID: 26525492 DOI: 10.1002/jso.24081] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Accepted: 10/17/2015] [Indexed: 12/24/2022]
Abstract
BACKGROUND Pelvic Ewing sarcoma (ES) has poorer outcomes than extremity-based lesions and the method of local control is controversial. METHODS A retrospective review was performed of 40 primary pelvic or sacral ES treated by a single surgeon. All received modern chemotherapy and those that received radiation were treated with modern dosages. RESULTS Fifty-five percent were disease-free at latest follow-up (median, 83.1 mos). Sixty-one percent had ≥ 99% necrosis, which was associated with 65% disease-free survival. Larger size (P = 0.016) and the absence of metastatic disease (P = 0.005) was predictive of survival. Eighty-three percent of relapsed patients were DOD. Half of patients who received surgery alone or RT alone have NED while 57% of those who received S/RT have NED. Complication rates were 69% (S/RT), 75% (surgery alone), 10% (RT alone). Functional outcomes were similar. CONCLUSION Primary pelvic ES is localized at presentation in 50% and the absence of metastases is the strongest predictor for survival. Chemotherapy is key, but excellent histologic response is neither a guarantee nor a necessity for survival. More than one-third die despite an excellent histologic response and at least one-third with lung metastases survive. With chemotherapy, radiation, and surgery, reasonable control of disease can be achieved. LEVEL OF EVIDENCE III Case-control or retrospective cohort study.
Collapse
Affiliation(s)
- Vincent Y Ng
- Department of Orthopaedics, University of Maryland, Baltimore, Maryland
| | - Robin Jones
- Sarcoma Unit Royal Marsden Hospital, London, United Kingdom
| | - Viviana Bompadre
- Department of Orthopaedics and Sports Medicine, Seattle Children's Hospital, Seattle, Washington
| | - Philip Louie
- Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, Washington
| | - Stephanie Punt
- Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, Washington
| | - Ernest U Conrad
- Department of Orthopaedics and Sports Medicine, Seattle Children's Hospital, Seattle, Washington
| |
Collapse
|
48
|
Barro V, Velez R, Pacha D, Giralt J, Roca I, Aguirre M. Bernese Periacetabular Osteotomy in a Hip Extra-Articular Resection Followed by Reconstruction Using an Extracorporeal Irradiated Acetabulum Autograft with Megaprosthesis, for Proximal Femur Osteosarcoma in a Pediatric Patient. Case Rep Med 2015; 2015:813683. [PMID: 26199628 PMCID: PMC4496472 DOI: 10.1155/2015/813683] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 05/27/2015] [Indexed: 11/18/2022] Open
Abstract
Osteosarcoma is the most common primary malignant tumour of bone. The oncologic surgery of a proximal femur osteosarcoma affecting the hip joint can be very challenging. We present an 8-year-old boy with a 5-month history of right hip pain. Radiographs and magnetic resonance imaging (MRI) showed a lytic lesion of the proximal femur extending 13 cm to the diaphysis. Histological evaluation was consistent with high-grade osteoblastic osteosarcoma. After completing chemotherapy we performed an extra-articular resection of the hip. Reconstruction was accomplished by reimplanting the acetabulum after irradiation and modular proximal femur megaprosthesis. Endoprosthetic reconstruction following proximal femur resection is a good treatment alternative achieving good postoperative function. Extra-articular resection of the hip using a periacetabular osteotomy technique enabled us to achieve wide margins and leave an intact posterior column to optimize acetabular reconstruction stability. Extracorporeal irradiation and reimplantation is a valuable treatment option in a situation such as this where allograft geometric fit is a priority. We conclude that an extra-articular resection of the hip, followed by reconstruction with an extracorporeally irradiated acetabulum and a proximal femur modular megaprosthesis, is a useful combined treatment option for malignant lesions involving the hip joint, especially in paediatric patients.
Collapse
Affiliation(s)
- Victor Barro
- Orthopaedic Surgery Department, Vall d'Hebron Hospital, 08035 Barcelona, Spain
| | - Roberto Velez
- Orthopaedic Surgery Department, Vall d'Hebron Hospital, 08035 Barcelona, Spain
| | - Daniel Pacha
- Orthopaedic Surgery Department, Vall d'Hebron Hospital, 08035 Barcelona, Spain
| | - Jordi Giralt
- Radiation Oncology Department, Vall d'Hebron Hospital, 08035 Barcelona, Spain
| | - Isabel Roca
- Nuclear Medicine, Department of Radiology, Vall d'Hebron Hospital, 08035 Barcelona, Spain
| | - Marius Aguirre
- Orthopaedic Surgery Department, Vall d'Hebron Hospital, 08035 Barcelona, Spain
| |
Collapse
|
49
|
Tan TJ, Aljefri AM, Clarkson PW, Masri BA, Ouellette HA, Munk PL, Mallinson PI. Imaging of limb salvage surgery and pelvic reconstruction following resection of malignant bone tumours. Eur J Radiol 2015; 84:1782-90. [PMID: 26104572 DOI: 10.1016/j.ejrad.2015.06.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 06/02/2015] [Indexed: 11/16/2022]
Abstract
Advances in reconstructive orthopaedic techniques now allow for limb salvage and prosthetic reconstruction procedures to be performed on patients who would otherwise be required to undergo debilitating limb amputations for malignant bone tumours. The resulting post-operative imaging of such cases can be daunting for the radiologist to interpret, particularly in the presence of distorted anatomy and unfamiliar hardware. This article reviews the indications for limb salvage surgery, prosthetic reconstruction devices involved, expected post-operative imaging findings, as well as the potential hardware related complications that may be encountered in the management of such cases.
Collapse
Affiliation(s)
- Tien Jin Tan
- Department of Radiology, Vancouver General Hospital, Vancouver, BC, Canada.
| | - Ahmad M Aljefri
- Department of Radiology, Vancouver General Hospital, Vancouver, BC, Canada
| | - Paul W Clarkson
- Department of Orthopaedics, University of British Columbia, Vancouver, BC, Canada
| | - Bassam A Masri
- Department of Orthopaedics, University of British Columbia, Vancouver, BC, Canada
| | - Hugue A Ouellette
- Department of Radiology, Vancouver General Hospital, Vancouver, BC, Canada
| | - Peter L Munk
- Department of Radiology, Vancouver General Hospital, Vancouver, BC, Canada
| | - Paul I Mallinson
- Department of Radiology, Vancouver General Hospital, Vancouver, BC, Canada
| |
Collapse
|
50
|
Angelini A, Calabrò T, Pala E, Trovarelli G, Maraldi M, Ruggieri P. Resection and reconstruction of pelvic bone tumors. Orthopedics 2015; 38:87-93. [PMID: 25665107 DOI: 10.3928/01477447-20150204-51] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 05/15/2014] [Indexed: 02/03/2023]
Abstract
The objective of this study was to assess outcome and recurrence rate after limb-salvage surgery with reconstruction for pelvic bone tumors and analyze complications and their relationship with surgery. The authors analyzed 129 patients followed for a mean of 6 years (range, 2-19 years). Chondrosarcoma was the most frequent histotype. Thirty-one cases with no acetabular involvement were reconstructed with allograft only. Acetabular resections were reconstructed with allograft prosthetic composite (n=60), allograft only (n=11), trabecular metal components (n=2), prosthesis only (n=10), saddle prosthesis (n=11), and iliofemoral arthrodesis (n=1). Margins were wide (n=94), wide contaminated (n=22), marginal (n=7), and intralesional (n=6). Oncologic outcomes were as follows: 75 patients were continuously disease free, 6 were disease free after treatment of relapse, 13 were alive with disease, 28 were dead of disease, and 5 were dead of other causes. Survival was 66% at 10 years. Local recurrence rate of malignant tumors was 22.1% and was not statistically influenced by margins (P=.140) or site (P=.933). Metastasis rate was 32.8%. Deep infection was observed in 30 (23.6%) cases, with no statistical difference between reconstructions with and without allograft (P=.09). Final external hemipelvectomy was performed in 16 cases. Newer techniques of reconstruction using stemmed acetabular cups or porous metal components combined with allograft are now available. Local control and satisfactory survival is achievable long term in patients with pelvic tumors, but this surgery implies a high rate of complications. Infection is a major complication, not influenced by the use of allografts. Amputation is rarely needed.
Collapse
|