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Samano-Garcia M, Silva-Ortiz VM, Rocha-Romero A, Cortes-Lares JA, Plancarte-Sanchez R. Bilateral femoroplasty for cancer pain. BMJ Support Palliat Care 2024; 13:e770-e771. [PMID: 37130723 DOI: 10.1136/spcare-2023-004315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 04/13/2023] [Indexed: 05/04/2023]
Affiliation(s)
- Marcela Samano-Garcia
- Pain Clinic, Mexico National Cancer Institute, Ciudad de Mexico, Ciudad de México, Mexico
| | - Victor M Silva-Ortiz
- Pain Management Department, Hospital Zambrano Hellion, San Pedro Garza Garcia, nl, Mexico
| | - Andres Rocha-Romero
- Pain Clinic, Mexico National Cancer Institute, Ciudad de Mexico, Ciudad de México, Mexico
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Zhao J, Ma X, Feng H. Innovation in proximal femoral replacement for oncology patients-A novel eggshell procedure. J Bone Oncol 2023; 39:100473. [PMID: 36915896 PMCID: PMC10006687 DOI: 10.1016/j.jbo.2023.100473] [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: 01/10/2023] [Revised: 02/25/2023] [Accepted: 02/26/2023] [Indexed: 03/05/2023] Open
Abstract
Purpose Proximal femoral replacement (PFR) for oncology patients is gaining interest as a limb salvage operation due to its obvious advantages. However, almost all hip replacement surgeries including PFR, are faced with the challenge of how to reconstruct the functional musculature in an optimal way. To address the challenge, we have developed an innovative eggshell procedure and through this study we aim to investigate the specific efficacy of the procedure. Methods A total of 44 tumor patients with PFR surgery were incorporated into the study, including 12 who underwent the eggshell procedure and 32 who did not. General characteristics, short-term indicators, long-term indicators and complication outcomes were compared successively between the two groups of patients. Results No significant differences were identified in general characteristics between the two groups. Overall, in terms of both short-term and long-term indicators, the patients with eggshell procedure performed significantly superior to the patients without it. Moreover, the eggshell procedure significantly reduced the incidence of associated complications, including prosthesis dislocation and hip pain. Conclusions Our eggshell procedure is convenient and accessible. On the one hand, it can reduce surgical side injuries without adding additional complications, and on the other it allows to improve joint mobility and life quality while diminishing the incidence of prosthesis dislocation and hip pain. Despite it may still remain limitations, we have reasons to believe that this procedure can be further promoted and applied.
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Affiliation(s)
- Jiazheng Zhao
- Department of Orthopedics, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Xiaowei Ma
- Department of Orthopedics, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Helin Feng
- Department of Orthopedics, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
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Wu Z, Cheng L, Cao Q, Ye S, Yu S, Sun M, Jing J. Case report and literature review: Primary leiomyosarcoma of the bone in the trochanteric region of the femur. Front Surg 2023; 9:1045307. [PMID: 36704525 PMCID: PMC9872517 DOI: 10.3389/fsurg.2022.1045307] [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: 09/15/2022] [Accepted: 12/16/2022] [Indexed: 01/11/2023] Open
Abstract
Background Primary leiomyosarcoma of the bone (LMSB) is an extremely rare, invasive, and highly destructive primary osteosarcoma with limited treatment options and poor prognosis. Only a few case reports of LMSB have been described because of its rarity. Therefore, clinicians have a limited understanding of its diagnosis, treatment, and prognosis, and the final diagnosis depends on histopathological findings. In this report, we describe a rare case of primary LMSB in the trochanteric region of the femur. Reporting this case may increase the dissemination and understanding of information regarding LMSB and provide a reference for the diagnosis and treatment of similar cases. Case presentation A 63-year-old woman presented with pain and limited movement of the left hip, which had lasted for 3 months, with no history of trauma or illness. Plain radiography and computed tomography revealed a solitary osteolytic lesion in the trochanteric area of the left femur with focal cortical destruction. Magnetic resonance imaging findings suggested invasion of the lesion into the bone cortex, forming a soft tissue mass, although no distant positive findings were observed on a whole-body bone scan. A bone tumor puncture biopsy was performed to obtain a final diagnosis, and histopathological evaluation revealed left femoral intertrochanteric leiomyosarcoma, classified as G1T2M0 and staged as IB (extracompartmental low-grade malignant) according to the Enneking staging system. Thus, we performed extensive debridement and left hip arthroplasty. Postoperative chemotherapy was administered, and the patient was followed up for 4 years. Four years later, the patient's left hip pain had resolved, joint activity was good, and no signs of recurrence or distant metastasis of the bone tumor were noted. Conclusion For proximal femoral Enneking stage IB LMSB, extensive tumor resection combined with tumor prosthesis replacement may be an effective treatment method to prolong the patient's lifespan and to restore joint function.
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Affiliation(s)
- Zhonghan Wu
- Department of Orthopaedics, The Second Hospital of Anhui Medical University, Hefei, China,Institute of Orthopaedics, Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei, China
| | - Li Cheng
- Department of Orthopaedics, The Second Hospital of Anhui Medical University, Hefei, China,Institute of Orthopaedics, Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei, China
| | - Qiliang Cao
- Department of Orthopaedics, The Second Hospital of Anhui Medical University, Hefei, China,Institute of Orthopaedics, Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei, China
| | - Shuming Ye
- Department of Orthopaedics, The Second Hospital of Anhui Medical University, Hefei, China,Institute of Orthopaedics, Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei, China
| | - Shuisheng Yu
- Department of Orthopaedics, The Second Hospital of Anhui Medical University, Hefei, China,Institute of Orthopaedics, Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei, China
| | - Min Sun
- Institute of Orthopaedics, Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei, China
| | - Juehua Jing
- Department of Orthopaedics, The Second Hospital of Anhui Medical University, Hefei, China,Institute of Orthopaedics, Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei, China,Correspondence: Juehua Jing
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Buldu MT, Wigley C, Kapoor S, Bassett P, Gerrand C. Do frailty scores predict outcome after proximal femoral replacement for musculoskeletal tumours: a case series? Eur J Orthop Surg Traumatol 2023; 33:151-158. [PMID: 34825990 DOI: 10.1007/s00590-021-03170-2] [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] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 11/15/2021] [Indexed: 01/07/2023]
Abstract
PURPOSE Frailty has a negative independent relationship with morbidity and mortality. A frail individual has low resilience and adaptive capacity to stressors with unfavourable consequences. The relationship between musculoskeletal tumour patients undergoing surgery and frailty is underrepresented in literature. This study's questions are; what is the prevalence of frailty in patients undergoing surgery for musculoskeletal tumours; what is the correlation between frailty and survival plus secondary outcome measures including length of hospital stay (LOS); can clinicians use frailty scoring to support preoperative decision-making? METHODS Patients over 60 years of age undergoing proximal femoral replacement for musculoskeletal tumours were included and classified as fit, vulnerable or frail using the modified frailty index (mFI), Rockwood and American Society of Anaesthesiologist's physical status classification (ASA) grading systems. Correlation with outcomes including survival and (LOS) was determined. RESULTS 85 patients were identified of mean age 72.6 years. Median follow-up was 18.9 months. The prevalence of frailty ranged between 55 to 76% and the overall median survival in frail groups were 19.8 months with all scoring systems used. Frail patients classified by the Rockwood score had a greater LOS and a trend to reduced survival. CONCLUSIONS There is a high prevalence of frailty in this cohort and frailty scores should be considered when planning surgery as part of holistic care. Moreover, a median survival greater than 18 months in frail patients supports the decision to offer surgery which may positively impact quality of life. Further research to identify the relationship between frailty and outcomes in musculoskeletal tumour patients is needed. LEVEL OF EVIDENCE IV, Retrospective Case Series.
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Affiliation(s)
- Metin Tolga Buldu
- Sarcoma Unit, Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, Middlesex, HA7 4LP, UK.
| | - Catrin Wigley
- Sarcoma Unit, Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, Middlesex, HA7 4LP, UK
| | - Smriti Kapoor
- Sarcoma Unit, Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, Middlesex, HA7 4LP, UK
| | - Paul Bassett
- Statsconsultancy Ltd., 40 Longwood Lane, Amersham, Bucks, HP7 9EN, UK
| | - Craig Gerrand
- Sarcoma Unit, Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, Middlesex, HA7 4LP, UK
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Wang Y, Wang H, Zhang H, Miao W, Liu J, Xu S. Nickel-titanium shape memory alloy embracing fixator benefits the determination of the implantation angle of prosthesis stem in tumor-type artificial joint replacement. Am J Transl Res 2022; 14:4698-4708. [PMID: 35958510 PMCID: PMC9360843] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/16/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Hip tumors often require tumor-type artificial joint replacement. The selection of the prosthesis stem (hip tumor prosthesis stem) implantation angle during the operation is important to prevent the complication of postoperative prosthesis dislocation. The aim of this study was to evaluate the role of a nickel-titanium (Ni-Ti) shape memory alloy embracing fixator in determination of the implantation angle of a hip tumor prosthesis stem and analyze its efficacy. METHODS 36 patients with proximal femur tumor were treated with extended tumor resection and prosthetic replacement. 14 patients received prosthetic replacements with the embracing fixators fixing between the junction of the prosthesis stem and the femur temporarily, while the other 22 patients received the same replacements but without the fixators. The two groups were compared regarding occurrence of complications, limb function, and active hip range of motion (ROM). RESULTS There was no case of hip dislocation in the group that received prosthetic replacements with the use of embracing fixators. Occurrence of deep infection had no difference between the two groups. However, better limb function and higher active (ROM) on abduction or flexion were observed in the group using embracing fixators. CONCLUSION Ni-Ti shape memory alloy embracing fixator plays a key role in assisting the accurate implantation angle of the prosthesis stem in prosthetic replacement. The prosthesis stem can be adjusted to the optimal angle with the help of the embracing fixator. Patients have a lower risk of dislocation, better limb function, and higher active hip ROM.
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Affiliation(s)
- Yang Wang
- Department of Emergency, Changhai Hospital, Naval Medical UniversityShanghai, China
- Department of Orthopedics, Changhai Hospital, Naval Medical UniversityShanghai, China
| | - Hongrui Wang
- Department of Emergency, Changhai Hospital, Naval Medical UniversityShanghai, China
- Department of Orthopedics, Changhai Hospital, Naval Medical UniversityShanghai, China
| | - Hongyue Zhang
- Department of Emergency, Changhai Hospital, Naval Medical UniversityShanghai, China
- Department of Orthopedics, Changhai Hospital, Naval Medical UniversityShanghai, China
| | - Wei Miao
- Department of Orthopaedics, Naval Hospital of Eastern TheaterZhoushan, Zhejiang, China
| | - Jilu Liu
- Department of Orthopaedics, Naval Hospital of Eastern TheaterZhoushan, Zhejiang, China
| | - Shuogui Xu
- Department of Emergency, Changhai Hospital, Naval Medical UniversityShanghai, China
- Department of Orthopedics, Changhai Hospital, Naval Medical UniversityShanghai, China
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Nguyễn MV, Carlier C, Nich C, Gouin F, Crenn V. Fracture Risk of Long Bone Metastases: A Review of Current and New Decision-Making Tools for Prophylactic Surgery. Cancers (Basel) 2021; 13:3662. [PMID: 34359563 DOI: 10.3390/cancers13153662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/14/2021] [Revised: 07/16/2021] [Accepted: 07/18/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Long bone metastases are frequently a pivotal point in the oncological history of patients. Weakening of the bone results in pathologic fractures that not only compromise patient function but also their survival. Therefore, the main issue for tumor boards remains timely assessment of the risk of fracture, as this is a key consideration in providing preventive surgery while also avoiding overtreatment. As the Mirels scoring system takes into account both the radiological and the clinical criteria, it has been used worldwide since the 1990s. However, due to increasing concern regarding the lack of accuracy, new thresholds have been defined for the identification of impending fractures that require prophylactic surgery, on the basis of axial cortical involvement and biomechanical models involving quantitative computed tomography. The aim of this review is to establish a state-of-the-art of the risk assessment of long bone metastases fractures, from simple radiologic scores to more complex multidimensional bone models, in order to define new decision-making tools. Abstract Long bone pathological fractures very much reflect bone metastases morbidity in many types of cancer. Bearing in mind that they not only compromise patient function but also survival, identifying impending fractures before the actual event is one of the main concerns for tumor boards. Indeed, timely prophylactic surgery has been demonstrated to increase patient quality of life as well as survival. However, early surgery for long bone metastases remains controversial as the current fracture risk assessment tools lack accuracy. This review first focuses on the gold standard Mirels rating system. It then explores other unique imaging thresholds such as axial or circumferential cortical involvement and the merits of nuclear imaging tools. To overcome the lack of specificity, other fracture prediction strategies have focused on biomechanical models based on quantitative computed tomography (CT): computed tomography rigidity analysis (CT-RA) and finite element analysis (CT-FEA). Despite their higher specificities in impending fracture assessment, their limited availability, along with a need for standardization, have limited their use in everyday practice. Currently, the prediction of long bone pathologic fractures is a multifactorial process. In this regard, machine learning could potentially be of value by taking into account clinical survival prediction as well as clinical and improved CT-RA/FEA data.
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Kitridis D, Saccomanno MF, Maccauro G, Givissis P, Chalidis B. Augmented versus non-augmented percutaneous cementoplasty for the treatment of metastatic impending fractures of proximal femur: A systematic review. Injury 2020; 51 Suppl 3:S66-S72. [PMID: 32087931 DOI: 10.1016/j.injury.2020.02.045] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 02/09/2020] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Percutaneous cementoplasty (PC) has been widely used for the stabilization of impending fractures of the proximal femur due to metastatic lesions. Augmented percataneous cementoplasty (APC) with fixation devices aims to improve mechanical consolidation and stability of the construct. However, the clinical benefit of the combined technique has not been clearly established. The purpose of the current review was to compare the efficacy between APC and PC for impending pathologic proximal femoral fractures from metastatic malignancy, in terms of pain relief, operative time and fracture related complication rates. MATERIAL AND METHODS Medline, Scopus, and the Cochrane central register of controlled trials were searched for clinical studies up to July 2019. Studies relevant to cementoplasty of the proximal femur were included. The primary outcome of the study was pain relief as assessed using the Visual Analogue Scale (VAS) change. Secondary outcomes included incidence of post-intervention fracture, operative time and complication rate. RESULTS Twelve studies with a total of 343 patients were included. No difference was found for all outcomes. For pain relief, pooled results showed a mean difference in VAS score -4.6 ± 1.7 for PC, and -4.3 ± 2.5 for APC (p = 0.41). Post-intervention fractures of the proximal femur occurred in 7% of patients with PC and in 5% of patients with APC (p = 0.4), and the mean duration of interventions was 57.9 ± 8.4 and 56.5 ± 27.5 min, respectively (p = 0.58). Cement leakage into the hip joint or the soft tissues occurred in 5% of cases in PC group and in 8% of cases in APC group (p = 0.16). Six patients in the APC group (4%) experienced major systemic complications, which were treated successfully. CONCLUSIONS APC does not seem to improve pain relief, fracture incidence, and operative time when compared with PC. Both techniques appeared effective in terms of resolution of symptoms, prevention of pathologic fractures, and early facilitation of weight-bearing. PC showed more clinical safety, as no major systemic complications occurred. However, due to the relative paucity of large clinical trials, the decision of augmentation of cementoplasty should be individualized according to the size and location of metastatic lesions and the overall medical condition of patients.
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Affiliation(s)
- Dimitrios Kitridis
- Aristotle University of Thessaloniki, 1st Orthopaedic Department, George Papanikolaou Hospital, Thessaloniki, Greece
| | | | - Giulio Maccauro
- Orthopedic Institute, Fondazione Policlinico A. Gemelli, Rome, Italy
| | - Panagiotis Givissis
- Aristotle University of Thessaloniki, 1st Orthopaedic Department, George Papanikolaou Hospital, Thessaloniki, Greece
| | - Byron Chalidis
- Aristotle University of Thessaloniki, 1st Orthopaedic Department, George Papanikolaou Hospital, Thessaloniki, Greece.
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Sas A, Tanck E, Sermon A, van Lenthe GH. Finite element models for fracture prevention in patients with metastatic bone disease. A literature review. Bone Rep 2020; 12:100286. [PMID: 32551337 PMCID: PMC7292864 DOI: 10.1016/j.bonr.2020.100286] [Citation(s) in RCA: 8] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 05/04/2020] [Accepted: 05/25/2020] [Indexed: 12/17/2022] Open
Abstract
Patients with bone metastases have an increased risk to sustain a pathological fracture as lytic metastatic lesions damage and weaken the bone. In order to prevent fractures, prophylactic treatment is advised for patients with a high fracture risk. Mechanical stabilization of the femur can be provided through femoroplasty, a minimally invasive procedure where bone cement is injected into the lesion, or through internal fixation with intra- or extramedullary implants. Clinicians face the task of determining whether or not prophylactic treatment is required and which treatment would be the most optimal. Finite element (FE) models are promising tools that could support this decision process. The aim of this paper is to provide an overview of the state-of-the-art in FE modeling for the treatment decision of metastatic bone lesions in the femur. First, we will summarize the clinical and mechanical results of femoroplasty as a prophylactic treatment method. Secondly, current FE models for fracture risk assessment of metastatic femurs will be reviewed and the remaining challenges for clinical implementation will be discussed. Thirdly, we will elaborate on the simulation of femoroplasty in FE models and discuss future opportunities. Femoroplasty has already proven to effectively relieve pain and improve functionality, but there remains uncertainty whether it provides sufficient mechanical strengthening to prevent pathological fractures. FE models could help to select appropriate candidates for whom femoroplasty provides sufficient increase in strength and to further improve the mechanical benefit by optimizing the locations for cement augmentation.
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Affiliation(s)
- Amelie Sas
- Biomechanics Section, KU Leuven, Leuven, Belgium
| | - Esther Tanck
- Orthopaedic Research Laboratory, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - An Sermon
- Department of Traumatology, University Hospitals Gasthuisberg, Leuven, Belgium and Department of Development and Regeneration, KU Leuven, Leuven, Belgium
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Amen TB, Varady NH, Hayden BL, Chen AF. Pathologic Versus Native Hip Fractures: Comparing 30-day Mortality and Short-term Complication Profiles. J Arthroplasty 2020; 35:1194-1199. [PMID: 31987688 DOI: 10.1016/j.arth.2020.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 11/08/2019] [Revised: 12/30/2019] [Accepted: 01/05/2020] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND A large body of research on native hip fractures has resulted in several evidence-based guidelines aimed at improving postsurgical care for these patients. In contrast, there is a paucity of data on pathologic hip fractures, and whether native hip fracture protocols are generalizable to this population is unknown. The purpose of this study was to compare mortality rates and complication profiles between patients with pathologic and native hip fractures. METHODS Using the American College of Surgeons-National Surgical Quality Improvement Program (NSQIP) database, we identified patients who underwent surgical treatment for pathologic and native hip fractures from 2007 to 2017 and 2601 matched pairs were identified using propensity scoring. Baseline covariates were controlled for, and rates of 30-day postoperative complications and mortality were compared using McNemar's test. RESULTS Pathologic hip fracture patients experienced significantly higher rates of death (6.3% vs 4.3%, P < .001), serious adverse events (17.3% vs 13.5%, P < .001), minor complications (34.3% vs 29.1%, P < .001), extended postoperative lengths of stay (30.2% vs 25.9%, P < .001), readmissions (11.9% vs 8.4%, P < .001), thromboembolic complications (3.0% vs 1.6%, P < .001), and perioperative transfusions (31.5% vs 26.4%, P < .001) compared to native hip fracture patients. CONCLUSION Pathologic hip fractures result in significantly higher complication rates than native hip fractures after surgical treatment, suggesting that guidelines for native hip fractures may not be generalizable for pathologic hip fractures. Orthopedic surgeons should closely monitor these patients for deep vein thrombosis, utilize blood sparing techniques, and employ a multidisciplinary approach to help manage and prevent a more heterogenous profile of postsurgical complications.
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Affiliation(s)
- Troy B Amen
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Nathan H Varady
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Brett L Hayden
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Antonia F Chen
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
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Gupta A, Elhence A. Use of endoprostheses for proximal femur metastases results in a rapid rehabilitation and low risk of implant failure--A prospective population-based study. J Bone Oncol 2020; 21:100279. [PMID: 32082983 PMCID: PMC7025085 DOI: 10.1016/j.jbo.2020.100279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 01/31/2020] [Accepted: 02/03/2020] [Indexed: 11/18/2022] Open
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Fukuda T, Huang M, Janardhanan A, Schweitzer ME, Huang C. Correlation of bone marrow cellularity and metabolic activity in healthy volunteers with simultaneous PET/MR imaging. Skeletal Radiol 2019; 48:527-534. [PMID: 30194581 DOI: 10.1007/s00256-018-3058-6] [Citation(s) in RCA: 7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 08/21/2018] [Accepted: 08/27/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To evaluate the correlation between bone marrow cellularity (BMC) and metabolic activity in healthy subjects and to see whether yellow marrow is indeed metabolically quiescent. Because metabolic activity can be assumed to reflect vascularity, we assessed the relationship between regional metabolic activity and geographic frequency of metastases as noted in the literature. MATERIALS AND METHODS Two hundred and twenty locations (ten in each side of the pelvis and proximal femur) were evaluated in 11 consecutive healthy volunteers with simultaneous PET/MR. BMC was calculated through precise water-fat fraction quantification with a 6-echo gradient echo. We analyzed correlations between cellularity and SUVr, age, and R2*. We also looked at the relation between our results and the reported prevalence of metastases. RESULTS There was moderate but statistically significant correlation between BMC and metabolic activity (r = 0.636, p < 0.0001). Interestingly, the iliac and sacrum had higher metabolic activity relative to cellularity, whereas the femoral neck and lesser trochanter showed lower SUVr than other regions with the similar cellularity. The relatively lower metabolic status of the femoral neck conflicted with its reported high frequency of metastasis. Excluding regions with almost no remaining red marrow, cellularity showed inverse relationship with age (r = 0.476, p < 0.0001) and direct relationship with R2* (r = 0.532, p < 0.0010). CONCLUSIONS Metabolic activity of bone marrow was largely dependent on BMC while yellow marrow seems metabolically quiescent. The discrepancy between the assumed vascularity as determined by metabolic activity and reported sites of metastasis suggested that the process of bone metastasis may not depend entirely on vascularity.
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Affiliation(s)
- Takeshi Fukuda
- Department of Radiology, Stony Brook University, Stony Brook, NY, USA
| | - Mingqian Huang
- Department of Radiology, Stony Brook University, Stony Brook, NY, USA
| | | | - Mark E Schweitzer
- Department of Radiology, Stony Brook University, Stony Brook, NY, USA
| | - Chuan Huang
- Department of Radiology, Stony Brook University, Stony Brook, NY, USA. .,Department of Psychiatry, Stony Brook University, Stony Brook, NY, USA.
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