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Limmahakhun S, Adulkasem N, Rungsiyakull C, Jingjit W, Rojanasthien S. Micromotion and stress shielding between taper fluted and cylindrical femoral stems for Paprosky bone deficiency type IIIB. Musculoskelet Surg 2023; 107:391-396. [PMID: 36944751 DOI: 10.1007/s12306-023-00781-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 03/14/2023] [Indexed: 03/23/2023]
Abstract
PURPOSE Taper fluted and cylindrical femoral stems have been commonly used for revision surgery with femoral bone loss. Shape and material differences between taper fluted and cylindrical confused surgeons whether superiority and inferiority in comparisons especially for type IIIB Paprosky bone deficiency. This study aims to investigate the micromotion between implant and bone interface and stress distribution around the implant in human cadaveric experiments. METHODS Paired comparisons of 7 cadavers between taper fluted stem and cylindrical stem were tested under dynamic cyclic loading. RESULTS The results showed appropriate bone-implant micromotions for bone osteointegration could be observed between both taper fluted and cylindrical stems (85 ± 10 μm and 113 ± 80 μm respectively, p = 0.59). Taper fluted stem attained the load distribution from the proximal to distal surrounding bone (from 4.92 ± 2.87 MPa to 2.14 ± 1.43 MPa, p = 0.43), while the cylindrical stem type showed the proximal bone stress shielding (from 2.56 ± 0.76 MPa to 5.23 ± 0.77 MPa, p = 0.03). CONCLUSION Both taper fluted and cylindrical femoral stems provided an adequate initial stability with a proper micromotions for bone-implant osteointegration for type IIIB Paprosky femoral bone loss. The taper fluted femoral stem had better biomechanical advantage in terms of greater stress transfer to periprosthetic bone.
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Affiliation(s)
- S Limmahakhun
- Department of Orthopaedic Surgery, Faculty of Medicine, Chiang Mai University, 110 Inthawarorot Rd., Suthep, Muang District, Chiang Mai, 50200, Thailand.
| | - N Adulkasem
- Department of Orthopaedic Surgery, Faculty of Medicine, Chiang Mai University, 110 Inthawarorot Rd., Suthep, Muang District, Chiang Mai, 50200, Thailand
| | - C Rungsiyakull
- Department of Mechanical Engineering, Faculty of Engineer, Chiang Mai University, Chiang Mai, Thailand
| | - W Jingjit
- Department of Orthopaedic Surgery, Faculty of Medicine, Chiang Mai University, 110 Inthawarorot Rd., Suthep, Muang District, Chiang Mai, 50200, Thailand
| | - S Rojanasthien
- Department of Orthopaedic Surgery, Faculty of Medicine, Chiang Mai University, 110 Inthawarorot Rd., Suthep, Muang District, Chiang Mai, 50200, Thailand
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Hadley ML, Shirley MB, Pulido LF, Lewallen DG. Intussusception Allograft Prosthetic Composites in Total Hip Arthroplasty: A Salvage Operation for Extensive Femoral Bone Loss. J Arthroplasty 2023; 38:1827-1838. [PMID: 36940757 DOI: 10.1016/j.arth.2023.03.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 03/23/2023] Open
Abstract
BACKGROUND Allograft prosthetic composites (APCs) have been used to perform revision total hip arthroplasty (THA) for massive femoral bone loss or deformity. Intussusception, or "telescoping", APC techniques have been proposed to enhance the contact area of this interface and provide superior mechanical fixation over conventional methods. The purpose of this study is to present to our knowledge, the largest series of telescoping APC THAs, along with surgical technique details and midterm (average 5-10 years) clinical results. METHODS Between 1994 and 2015, 46 revision THAs performed with proximal femoral telescoping APCs were retrospectively reviewed at a single institution. Overall survival, reoperation-free survival, and construct survival rates were calculated via Kaplan-Meier methods. In addition, radiographic analyses were performed to evaluate for component loosening, union at the APC-host interface, and resorption of the allograft. RESULTS At 10 years, the overall patient survival was 58%, reoperation-free survival was 76%, and construct survival was 95%. Reoperation was performed in 20% (n = 9) and only 2 constructs required resection. Radiographic analyses performed at latest follow-up revealed no instances of radiographic femoral stem loosening, an 86% union rate at the APC-host site, 23% with signs of some allograft resorption, and a 54% trochanteric union. The mean postoperative Harris hip score was 71 points (range, 46-100). CONCLUSION Telescoping APCs are technically demanding, but provide reliable mechanical fixation for the reconstructing of large proximal femoral bone deficits in revision THA with excellent construct survivorship, acceptable reoperation rates, and good clinical outcomes. LEVEL OF EVIDENCE IV.
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Almaslmani S, Entezari B, Safir OA, Gross AE, Kuzyk PR. Clinical and Functional Outcomes of Extended Trochanteric Osteotomy in 2-Stage Revision Total Hip Arthroplasty for Periprosthetic Joint Infection: A Systematic Review and Meta-Analysis. J Arthroplasty 2023; 38:1900-1907. [PMID: 37001623 DOI: 10.1016/j.arth.2023.03.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 03/04/2023] [Accepted: 03/24/2023] [Indexed: 05/01/2023] Open
Abstract
BACKGROUND Extended trochanteric osteotomy (ETO) has long been used in 2-stage revision surgeries of the hip, for both aseptic and septic indications. The purpose of this systematic review is to summarize the cumulative occurrence rates of the clinical and functional outcomes associated with the use of ETO in 2-stage revision total hip arthroplasty for periprosthetic joint infection. METHODS PubMed/MEDLINE and the Cochrane Database of Systematic Reviews databases were searched for articles published from January 1980 to January 2022 using the following keywords: "extended" AND "trochanteric" AND "osteotomy" AND "infection." Cumulative occurrence rates of outcomes and complications were calculated. A fixed-effects model and a 95% CI were applied. A P value of .05 was considered the significance threshold. RESULTS Nine studies were in full compliance with the inclusion criteria, with a total population size across all studies of 378. Union and infection eradication rates among studies were 95.1% (95% CI, 92.7-97.1, P = .018) and 94.0% (95% CI, 91.1-96.4, P = .089), respectively. Postoperation complications occurred in 15.34% of patients (95% CI, 10.34-21.22, P = .066). Occurrence rates for stem subsidence, dislocation, and femoral fractures were 6.2% (95% CI, 3.3-9.9, P = .187), 7.6% (95% CI, 4.8-10.9, P = .075), and 9.1% (95% CI, 5.8-13, P = .106), respectively. CONCLUSION With high rates of union and infection eradication, and low rates of postoperation complications, this study concludes the use of ETO in performing 2-stage revision total hip arthroplasty for the septic hip to be effective and safe.
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Affiliation(s)
- Saud Almaslmani
- Granovsky Gluskin Division of Orthopaedics, Mount Sinai Hospital, Toronto, Ontario, Canada; Department of Surgery, Faculty of Medicine, Al-Qunfudhah, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Bahar Entezari
- Granovsky Gluskin Division of Orthopaedics, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Oleg A Safir
- Granovsky Gluskin Division of Orthopaedics, Mount Sinai Hospital, Toronto, Ontario, Canada; Division of Orthopaedic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Allan E Gross
- Granovsky Gluskin Division of Orthopaedics, Mount Sinai Hospital, Toronto, Ontario, Canada; Division of Orthopaedic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Paul R Kuzyk
- Granovsky Gluskin Division of Orthopaedics, Mount Sinai Hospital, Toronto, Ontario, Canada; Division of Orthopaedic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
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Hillier DI, Petrie MJ, Harrison TP, Salih S, Gordon A, Buckley SC, Kerry RM, Hamer A. Financial analysis of revision hip surgery at a tertiary referral centre as classified using the British Hip Society Revision Hip Complexity Classification. Bone Jt Open 2023; 4:559-566. [PMID: 37524337 PMCID: PMC10390261 DOI: 10.1302/2633-1462.48.bjo-2023-0004.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/02/2023] Open
Abstract
Aims The burden of revision total hip arthroplasty (rTHA) continues to grow. The surgery is complex and associated with significant costs. Regional rTHA networks have been proposed to improve outcomes and to reduce re-revisions, and therefore costs. The aim of this study was to accurately quantify the cost and reimbursement for a rTHA service, and to assess the financial impact of case complexity at a tertiary referral centre within the NHS. Methods A retrospective analysis of all revision hip procedures was performed at this centre over two consecutive financial years (2018 to 2020). Cases were classified according to the Revision Hip Complexity Classification (RHCC) and whether they were infected or non-infected. Patients with an American Society of Anesthesiologists (ASA) grade ≥ III or BMI ≥ 40 kg/m2 are considered "high risk" by the RHCC. Costs were calculated using the Patient Level Information and Costing System (PLICS), and remuneration based on Healthcare Resource Groups (HRG) data. The primary outcome was the financial difference between tariff and cost per patient episode. Results In all, 199 revision episodes were identified in 168 patients: 25 (13%) least complex revisions (H1); 110 (55%) complex revisions (H2); and 64 (32%) most complex revisions (H3). Of the 199, 76 cases (38%) were due to infection, and 78 patients (39%) were "high risk". Median length of stay increased significantly with case complexity from four days to six to eight days (p = 0.006) and for revisions performed for infection (9 days vs 5 days; p < 0.001). Cost per episode increased significantly between complexity groups (p < 0.001) and for infected revisions (p < 0.001). All groups demonstrated a mean deficit but this significantly increased with revision complexity (£97, £1,050, and £2,887 per case; p = 0.006) and for infected failure (£2,629 vs £635; p = 0.032). The total deficit to the NHS Trust over two years was £512,202. Conclusion Current NHS reimbursement for rTHA is inadequate and should be more closely aligned to complexity. An increase in the most complex rTHAs at major revision centres will likely place a greater financial burden on these units.
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Affiliation(s)
- David I Hillier
- Department of Trauma & Orthopaedic Surgery, Sheffield Teaching Hospitals, Sheffield, UK
| | - Michael J Petrie
- Department of Trauma & Orthopaedic Surgery, Sheffield Teaching Hospitals, Sheffield, UK
| | - Tim P Harrison
- Department of Trauma & Orthopaedic Surgery, Sheffield Teaching Hospitals, Sheffield, UK
| | - Saif Salih
- Department of Trauma & Orthopaedic Surgery, Sheffield Teaching Hospitals, Sheffield, UK
| | - Andrew Gordon
- Department of Trauma & Orthopaedic Surgery, Sheffield Teaching Hospitals, Sheffield, UK
| | - Simon C Buckley
- Department of Trauma & Orthopaedic Surgery, Sheffield Teaching Hospitals, Sheffield, UK
| | - Robert M Kerry
- Department of Trauma & Orthopaedic Surgery, Sheffield Teaching Hospitals, Sheffield, UK
| | - Andrew Hamer
- Department of Trauma & Orthopaedic Surgery, Sheffield Teaching Hospitals, Sheffield, UK
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Passano B, Oakley CT, Lutes WB, Incavo SJ, Park KJ, Schwarzkopf R. Clinical and Radiographic Outcomes of a Monoblock Fluted Titanium-Tapered Stem for Paprosky IIIa, IIIb, and IV Femoral Bone Defects. J Arthroplasty 2023:S0883-5403(23)00054-2. [PMID: 36731584 DOI: 10.1016/j.arth.2023.01.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 01/21/2023] [Accepted: 01/23/2023] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Modern fluted titanium-tapered stems (FTTS) have been increasingly utilized to achieve primary stability in conversion and revision total hip arthroplasty with major femoral bone loss. This study sought to determine the radiographic and clinical outcomes of a monoblock FTTS in patients who had major femoral bone loss. METHODS A multicenter retrospective observational study of all total hip arthroplasty patients who received a monoblock FTTS who had up to 5-year radiographic follow-up was conducted. Only patients with femoral Paprosky classifications of IIIa, IIIb, and IV were included. Eighty-one monoblock FTTS were examined. Median clinical follow-up was 29 months (range, 18 to 58). Stem subsidence and loosening were assessed on most recent radiographs. All-cause revisions and stem survivals were assessed. RESULTS Median subsidence was 1.4 millimeters (mm) (range, 0 to 15.0). Sixteen (23.9%) and 3 (4.5%) stems had subsidence greater than 5 and 10 mm, respectively. All stems not acutely revised appeared stable, without evidence of loosening, at latest follow-up. Ten hips (12.3%) required reoperations. Of these, only 5 (6.2%) stems were removed; 4 due to periprosthetic joint infection and 1 for surgical exposure during acetabular revision. Kaplan-Meier analyses yielded an all-cause stem survivorship of 95.1% at 2-years and 87.1% at 4-years. Stem survivorships excluding septic causes was 98.8% at both 2 and 4 years. CONCLUSION Monoblock FTTS in complex femoral reconstruction cases showed encouraging clinical and radiographic results in patients who had severe femoral bone loss at median 29 months follow-up.
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Affiliation(s)
- Brandon Passano
- Department of Orthopedic Surgery, NYU Langone Hospital-Long Island, Mineola, New York
| | - Christian T Oakley
- Department of Orthopedic Surgery, NYU Langone Health, New York, New York
| | - William B Lutes
- Department of Orthopedic Surgery, Aurora Health Clinic, Kenosha, Wisconsin
| | - Stephen J Incavo
- Department of Orthopaedics and Sports Medicine, Houston Methodist, Houston, Texas
| | - Kwan J Park
- Department of Orthopaedics and Sports Medicine, Houston Methodist, Houston, Texas
| | - Ran Schwarzkopf
- Department of Orthopedic Surgery, NYU Langone Health, New York, New York
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Scuderi GR, Weinberg M. Classification of Bone Loss With Failed Stemmed Components in Revision Total Knee Arthroplasty. J Arthroplasty 2022; 37:S258-S262. [PMID: 35184930 DOI: 10.1016/j.arth.2021.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/05/2021] [Accepted: 12/13/2021] [Indexed: 02/02/2023] Open
Abstract
INTRODUCTION With the increasing number of primary total knee arthroplasties (TKA) being performed annually there is also an expected increase in the number of revision TKA, as well as failed revision TKA with stemmed components. A new classification system based upon the location and degree of bone loss in the tibial and or femoral metaphysis and diaphysis is proposed. Type 1 has no bone loss in the metaphysis and diaphysis; Type 2 has a metaphyseal bone loss. Type 3 defects are subdivided into A and B, depending on the extent of the diaphyseal bone loss. Type 4 has extensive bone loss with an expansion of the diaphyseal cortex. METHOD An online survey with digital anteroposterior and lateral radiographs was sent to five arthroplasty surgeons. A total of 55 cases with stemmed femoral and tibial components, considered failures and pending revision, were reviewed. By using the proposed classification system, each femoral and tibial component was scored. Interobserver reliability was determined using the intraclass correlation coefficient for pooled data. RESULTS Comparisons between each individual reviewer demonstrated moderate to strong agreement overall for the reviewers using the classification, with an average correlation coefficient of 0.67 (95% CI [0.57 to 0.77]) for all cases, signifying a low variation in the scores of each case. Looking specifically at the femoral components, the ICC was 0.62 (95% CI [0.477 to 0.76]), while the ICC for the tibial components was 0.71 (95% CI [0.58 to 0.83]). DISCUSSION This classification, which has demonstrated moderate to strong interobserver reliability, can help surgeons determine the degree of anticipated bone loss and approach these complex cases with a preoperative plan based upon the radiographic images. This classification system will also allow standardized communication among surgeons, categorization of procedures for comparative research, and anticipated prognosis.
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7
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Hastie GR, Asle SG, Gambhir A, Board TN. Revision of double-tapered, titanium, fully hydroxyapatite-coated femoral stems: ease of extraction and subsequent reconstruction. Hip Int 2022; 33:485-489. [PMID: 35057652 DOI: 10.1177/11207000211069774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Fully hydroxyapatite coated, double-tapered, titanium stems are the most commonly used uncemented implants in the UK with survivorship reported at 96.3% at 23 years however there is no literature on the consequences of revision. We aimed to explore the reasons for failure, ease of stem extraction, extent of bone loss and complexity of the subsequent reconstruction. METHODS Between December 2012 and March 2019, 104 cases requiring removal of the Corail® stem (DePuy Synthes, Warsaw, IN, USA) were identified from the National Joint Registry (NJR) and our local revision database. Indication for revision, surgical/reconstruction technique, complications and follow-up data were reviewed. RESULTS The common reasons for revision were aseptic loosening 45.2%, infection 23.5%, instability 4.8% and peri-prosthetic fracture 12.5%. Removal of the implant without extended trochanteric osteotomy (ETO) was achieved in 94.2% of cases. Of those revised for aseptic loosening 23% were proximal, 38% were proximal/mid stem and 38% all zones. Significant bone loss is not a common feature of the failure of this stem with 95% graded as a Paprosky grade 2 or less. In terms of reconstruction, 69.2% were revised to a primary cemented stem. CONCLUSIONS In the majority of cases revision can be achieved without an ETO and reconstruction possible using a primary stem as significant bone loss is not a common feature of failure of this stem design. We conclude that this stem is safe to use in younger patients who may outlast any type of primary implant and would inevitably face revision in their lifetime.
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Affiliation(s)
- Graham R Hastie
- Department of Lower Limb Surgery, Wrightington Wigan and Leigh NHS Foundation Trust, Wigan, UK
| | - Soheil G Asle
- Department of Lower Limb Surgery, Wrightington Wigan and Leigh NHS Foundation Trust, Wigan, UK
| | - Anil Gambhir
- Department of Lower Limb Surgery, Wrightington Wigan and Leigh NHS Foundation Trust, Wigan, UK
| | - Tim N Board
- Department of Lower Limb Surgery, Wrightington Wigan and Leigh NHS Foundation Trust, Wigan, UK
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Liechti EF, Neufeld ME, Soto F, Linke P, Busch SM, Gehrke T, Citak M. Favourable outcomes of repeat one-stage exchange for periprosthetic joint infection of the hip. Bone Joint J 2022; 104-B:27-33. [PMID: 34969284 DOI: 10.1302/0301-620x.104b1.bjj-2021-0970.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS One-stage exchange for periprosthetic joint infection (PJI) in total hip arthroplasty (THA) is gaining popularity. The outcome for a repeat one-stage revision THA after a failed one-stage exchange for infection remains unknown. The aim of this study was to report the infection-free and all-cause revision-free survival of repeat one-stage exchange, and to investigate the association between the Musculoskeletal Infection Society (MSIS) staging system and further infection-related failure. METHODS We retrospectively reviewed all repeat one-stage revision THAs performed after failed one-stage exchange THA for infection between January 2008 and December 2016. The final cohort included 32 patients. The mean follow-up after repeat one-stage exchange was 5.3 years (1.2 to 13.0). The patients with a further infection-related failure and/or all-cause revision were reported, and Kaplan-Meier survival for these endpoints determined. Patients were categorized according to the MSIS system, and its association with further infection was analyzed. RESULTS A total of eight repeat septic revisions (25%) developed a further infection-related failure, and the five-year infection-free survival was 81% (95% confidence interval (CI) 57 to 92). Nine (28%) underwent a further all-cause revision and the five-year all-cause revision-free survival was 74% (95% CI 52 to 88). Neither the MSIS classification of the host status (p = 0.423) nor the limb status (p = 0.366) was significantly associated with further infection-related failure. CONCLUSION Repeat one-stage exchange for PJI in THA is associated with a favourable five-year infection-free and all-cause revision-free survival. Notably, the rate of infection control is encouraging when compared with the reported rates after repeat two-stage exchange. The results can be used to counsel patients and help clinicians make informed decisions about treatment. With the available number of patients, further infection-related failure was not associated with the MSIS host or limb status. Cite this article: Bone Joint J 2022;104-B(1):27-33.
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Affiliation(s)
- Emanuel F Liechti
- Department of Orthopaedic Surgery, HELIOS ENDO-Klinik Hamburg, Hamburg, Hamburg, Germany.,Department of Orthopaedic Surgery and Traumatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Michael E Neufeld
- Department of Orthopaedic Surgery, HELIOS ENDO-Klinik Hamburg, Hamburg, Hamburg, Germany.,Department of Orthopaedic Surgery, Lower Limb (Adult Hip & Knee) Reconstruction, The University of British Columbia, Vancouver, Canada
| | - Fernando Soto
- Department of Orthopaedic Surgery, HELIOS ENDO-Klinik Hamburg, Hamburg, Hamburg, Germany.,Department of Orthopaedic Surgery, Hospital Naval de Viña del Mar Almirante Nef, Vina del Mar, Chile
| | - Philip Linke
- Department of Orthopaedic Surgery, HELIOS ENDO-Klinik Hamburg, Hamburg, Hamburg, Germany
| | - Sophia-Marlene Busch
- Department of Orthopaedic Surgery, HELIOS ENDO-Klinik Hamburg, Hamburg, Hamburg, Germany
| | - Thorsten Gehrke
- Department of Orthopaedic Surgery, HELIOS ENDO-Klinik Hamburg, Hamburg, Hamburg, Germany
| | - Mustafa Citak
- Department of Orthopaedic Surgery, HELIOS ENDO-Klinik Hamburg, Hamburg, Hamburg, Germany
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Slullitel PA, Oñativia JI, Zanotti G, Comba F, Piccaluga F, Buttaro MA. One-stage exchange should be avoided in periprosthetic joint infection cases with massive femoral bone loss or with history of any failed revision to treat periprosthetic joint infection. Bone Joint J 2021; 103-B:1247-1253. [PMID: 34192931 DOI: 10.1302/0301-620x.103b7.bjj-2020-2155.r1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS There is a paucity of long-term studies analyzing risk factors for failure after single-stage revision for periprosthetic joint infection (PJI) following total hip arthroplasty (THA). We report the mid- to long-term septic and non-septic failure rate of single-stage revision for PJI after THA. METHODS We retrospectively reviewed 88 cases which met the Musculoskeletal Infection Society (MSIS) criteria for PJI. Mean follow-up was seven years (1 to 14). Septic failure was diagnosed with a Delphi-based consensus definition. Any reoperation for mechanical causes in the absence of evidence of infection was considered as non-septic failure. A competing risk regression model was used to evaluate factors associated with septic and non-septic failures. A Kaplan-Meier estimate was used to analyze mortality. RESULTS The cumulative incidence of septic failure was 8% (95% confidence interval (CI) 3.5 to 15) at one year, 13.8% (95% CI 7.6 to 22) at two years, and 19.7% (95% CI 12 to 28.6) at five and ten years of follow-up. A femoral bone defect worse than Paprosky IIIA (hazard ratio (HR) 13.58 (95% CI 4.86 to 37.93); p < 0.001) and obesity (BMI ≥ 30 kg/m2; HR 3.88 (95% CI 1.49 to 10.09); p = 0.005) were significantly associated with septic failure. Instability and periprosthetic fracture were the most common reasons for mechanical failure (5.7% and 4.5%, respectively). The cumulative incidence of aseptic failure was 2% (95% CI 0.4 to 7) at two years, 9% (95% CI 4 to 17) at five years, and 12% (95% CI 5 to 22) at ten years. A previous revision to treat PJI was significantly associated with non-septic failure (HR 9.93 (95% CI 1.77 to 55.46); p = 0.009). At the five-year timepoint, 93% of the patients were alive (95% CI 84% to 96%), which fell to 86% (95% CI 75% to 92%) at ten-year follow-up. CONCLUSION Massive femoral bone loss was associated with greater chances of developing a further septic failure. All septic failures occurred within the first five years following the one-stage exchange. Surgeons should be aware of instability and periprosthetic fracture being potential causes of further aseptic revision surgery. Cite this article: Bone Joint J 2021;103-B(7):1247-1253.
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Affiliation(s)
- Pablo A Slullitel
- Sir John Charnley Hip Surgery Unit, Institute of Orthopaedics 'Carlos E. Ottolenghi', Italian Hospital of Buenos Aires, Argentina, Buenos Aires, Argentina
| | - José I Oñativia
- Sir John Charnley Hip Surgery Unit, Institute of Orthopaedics 'Carlos E. Ottolenghi', Italian Hospital of Buenos Aires, Argentina, Buenos Aires, Argentina
| | - Gerardo Zanotti
- Sir John Charnley Hip Surgery Unit, Institute of Orthopaedics 'Carlos E. Ottolenghi', Italian Hospital of Buenos Aires, Argentina, Buenos Aires, Argentina
| | - Fernando Comba
- Sir John Charnley Hip Surgery Unit, Institute of Orthopaedics 'Carlos E. Ottolenghi', Italian Hospital of Buenos Aires, Argentina, Buenos Aires, Argentina
| | - Francisco Piccaluga
- Sir John Charnley Hip Surgery Unit, Institute of Orthopaedics 'Carlos E. Ottolenghi', Italian Hospital of Buenos Aires, Argentina, Buenos Aires, Argentina
| | - Martin A Buttaro
- Sir John Charnley Hip Surgery Unit, Institute of Orthopaedics 'Carlos E. Ottolenghi', Italian Hospital of Buenos Aires, Argentina, Buenos Aires, Argentina
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10
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Cemented Revision Hip Arthroplasty With Femoral Impaction Bone Grafting. J Am Acad Orthop Surg 2021; 29:591-595. [PMID: 34161958 DOI: 10.5435/jaaos-d-20-00481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 01/13/2021] [Indexed: 02/01/2023] Open
Abstract
Long-stemmed uncemented implants are commonly used during revision hip arthroplasty but may be difficult to re-revise. Impaction bone grafting allows for the use of a shorter cemented stem during revision hip arthroplasty and may restore bone stock in patients with substantial femoral defects. Femoral impaction bone grafting is particularly beneficial in younger patients, who are more likely to require additional revision procedures in the future. The surgical technique used at our institution includes improvements to previous methods including the use of modular tamps and nonirradiated, size-profiled bone graft.
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11
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Petronis S, Jakusonoka R, Linovs V, Jumtins A. Filling Bone Defects after Hip Arthroplasty Revision Using Hydroxyapatite/β-tricalcium Phosphate: A Case Report with Long-term Result. J Orthop Case Rep 2021; 11:5-9. [PMID: 35437485 PMCID: PMC9009477 DOI: 10.13107/jocr.2021.v11.i06.2234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Introduction: The increasing number of primary total hip replacements means that there is an increased need for hip arthroplasty revisions. The periprosthetic fractures which cause bone defects can occur during removal of the femoral component and healing of these fractures can be delayed. In femoral bone defects during revisions, there are no metal augments for filling these defects. Case Report: Fifty-nine-year-old female presented with infected loosening of the left hip non-cemented endoprosthesis 5 years after surgery. The patient underwent removal of endoprosthesis. In 2 months, re-implantation of non-cemented endoprosthesis was performed and biphasic calcium phosphate (BCP) ceramic granules with hydroxyapatite/β-tricalcium phosphate (HAp/β-TCP) were implanted in the femoral bone defects. Eleven months following the arthroplasty patient had periprosthetic fracture of the distal third of the left femur. The osteosynthesis was performed and BCP ceramic granules with HAp/β-TCP were used to fill the bone defect. Long-term follow-up showed very good functional outcome and bone defect healing. Conclusion: The BCP ceramic granules with HAp/β-TCP material adjusted to the bone defect anatomy, showed effective femoral bone defect and periprosthetic fracture healing in a patient with hip arthroplasty revision and periprosthetic fracture.
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Affiliation(s)
- Sandris Petronis
- Department of Orthopaedics, Riga Stradins University, Riga, Latvia.,Department of Orthopaedics, Riga Second Hospital, Riga, Latvia
| | - Ruta Jakusonoka
- Department of Orthopaedics, Riga Stradins University, Riga, Latvia
| | - Viktors Linovs
- Department of Radiology, Riga Second Hospital, Riga, Latvia
| | - Andris Jumtins
- Department of Orthopaedics, Riga Stradins University, Riga, Latvia
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12
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Jayasinghe G, Buckle C, Maling LC, To C, Anibueze C, Vinayakam P, Slack R. Medium Term Radiographic and Clinical Outcomes Using a Modular Tapered Hip Revision Implant. Arthroplast Today 2021; 8:181-187. [PMID: 33898674 PMCID: PMC8056170 DOI: 10.1016/j.artd.2021.02.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 02/10/2021] [Accepted: 02/23/2021] [Indexed: 12/30/2022] Open
Abstract
Background The rate of revision hip arthroplasty surgery is rising. Surgeons must use implants with proven outcomes to help overcome the technical challenges faced during revision surgery. However, outcome studies using these implants are limited. The aim of this study is to investigate the radiographic and clinical outcomes of the Stryker Restoration stem, the most commonly used hip revision stem in the United Kingdom (UK). Methods A retrospective review of a single surgeon case series was performed. Immediate postoperative radiographs were analyzed for offset and leg length discrepancy. Radiographic evidence of subsidence was assessed using follow-up radiographs. Kaplan-Meier survival analysis was applied using explantation and reoperation as endpoints. Patient-reported outcomes were measured using the Oxford Hip Score and EQ-5D-5L. Results One hundred ninety-eight cases were identified. Mean follow-up duration was 51.8 months (range: 24-121). Stem survival during this period was 98%. Reoperation for any reason was 13%. Mean subsidence was 4.18 mm. Analysis of variance testing showed no difference in mean subsidence between revision indications. Mean offset and leg length discrepancies were measured at 4.5 mm and 4.3 mm, respectively. The mean Oxford Hip Score for participants was 27.6. Conclusions This series demonstrates excellent implant survival, with radiographic parameters for reconstruction and subsidence levels comparable to those in the existing literature. The tapered modular hip revision stem provides surgeons with the intraoperative flexibility to overcome some of the anatomical difficulties encountered during revision surgery; this is reflected in the radiographic and clinical outcomes of the cohort in this study.
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Affiliation(s)
- Gihan Jayasinghe
- Trauma and Orthopaedics Department, Queen Elizabeth the Queen Mother Hospital, Margate, Kent, UK
| | - Chris Buckle
- Trauma and Orthopaedics Department, Queen Elizabeth the Queen Mother Hospital, Margate, Kent, UK
| | - Lucy Clare Maling
- Trauma and Orthopaedics Department, Queen Elizabeth the Queen Mother Hospital, Margate, Kent, UK
| | - Christopher To
- Trauma and Orthopaedics Department, Queen Elizabeth the Queen Mother Hospital, Margate, Kent, UK
| | - Chukwudubem Anibueze
- Trauma and Orthopaedics Department, Queen Elizabeth the Queen Mother Hospital, Margate, Kent, UK
| | - Parthiban Vinayakam
- Trauma and Orthopaedics Department, Queen Elizabeth the Queen Mother Hospital, Margate, Kent, UK
| | - Richard Slack
- Trauma and Orthopaedics Department, Queen Elizabeth the Queen Mother Hospital, Margate, Kent, UK
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Cortical strut allografts in salvage revision arthroplasty: Surgical technique and clinical outcomes. J Clin Orthop Trauma 2021; 17:37-43. [PMID: 33680839 PMCID: PMC7919927 DOI: 10.1016/j.jcot.2021.01.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/30/2021] [Accepted: 01/30/2021] [Indexed: 10/22/2022] Open
Abstract
BACKGROUND The aim of this study was to present our clinical outcomes and surgical technique in strut allografts preparation using staggered holes to enhance osteointegration and demineralised bone matrix (DBM) as an adjunct to cortical strut allografts in salvage revision arthroplasty patients. METHODS Retrospective consecutive series of patients who required strut allograft femoral reconstructions with minimum 2 years follow up between 2012 and 2018. Frozen washed irradiated, cortical struts were used and prepared adding 2 mm staggered drill holes along the length of the strut and applying DBM paste on the graft-host interface. Outcome measures included radiographic strut union, graft resorption, infection and complications. RESULTS 15 patients included; 3 males and 12 females with median age 72 years (range 60-93). All had significant bony defects (Paprosky III/IV in 12 cases including 3 cases of periprosthetic hip fractures and further 3 cases of periprosthetic knee fractures around revision hinged implants). At final follow up, median 3.8 years (range 2.7-7.2), 14/15 (93.3%) struts had united at a median 6 months (range 5-8), complete incorporation with cortical round-off was seen at median 12 months (range 8-48) in 12/15 (80%) struts, 2/15 (13.3%) show radiographic evidence of proximal minimal graft resorptions although the remainder of the strut had integrated and were asymptomatic. There were no cases of infection. CONCLUSIONS Use of strut allografts helps to reconstruct bone defects, restore bone stock, and provide stable fixation for complex patterns of periprosthetic fractures around hip/knee implants and salvage revision cases with 93.3% union rate at median 6 months.
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Slullitel PA, Oñativia JI, Cima I, Zanotti G, Comba F, Piccaluga F, Buttaro MA. Patients with no recurrence of infection five years after two-stage revision hip arthroplasty may be classified as periprosthetic infection 'in remission'. Bone Joint J 2021; 103-B:79-86. [PMID: 33380194 DOI: 10.1302/0301-620x.103b1.bjj-2020-0955.r1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
AIMS We aimed to report the mid- to long-term rates of septic and aseptic failure after two-stage revision surgery for periprosthetic joint infection (PJI) following total hip arthroplasty (THA). METHODS We retrospectively reviewed 96 cases which met the Musculoskeletal Infection Society criteria for PJI. The mean follow-up was 90 months (SD 32). Septic failure was assessed using a Delphi-based consensus definition. Any further surgery undertaken for aseptic mechanical causes was considered as aseptic failure. The cumulative incidence with competing risk analysis was used to predict the risk of septic failure. A regression model was used to evaluate factors associated with septic failure. The cumulative incidence of aseptic failure was also analyzed. RESULTS There were 23 septic failures at final follow-up, with a cumulative incidence of 14% (95% confidence interval (CI) 8% to 22%) at one year, 18% (95% CI 11% to 27%) at two years, 22% (95% CI 14% to 31%) at five years, and 23% (95% CI 15% to 33%) at ten years. Having at least one positive culture (hazard ratio (HR) 2.38 (interquartile range (IQR) 1.19 to 4.74); p = 0.013), or a positive intraoperative frozen section (HR 2.55 (IQR 1.06 to 6.15); p = 0.037) was significantly associated with septic failure after reimplantation. With dislocation being the most common cause of aseptic revision (5.2%), the cumulative incidence of aseptic failure was 1% (95% CI 0% to 5%) at one year, 6% (95% CI 1% to 8%) at five years, and 8% (95%CI 3% to 17%) at ten years. CONCLUSION If there is no recurrent infection in the five years following reimplantation, the chances of further infection thereafter are remote. While the results of a frozen section may be a reliable guide to the timing of reimplantation, intraoperative culture has, currently, only prognostic value. Surgeons should be aware that instability remains a potential indication for further revision surgery. Cite this article: Bone Joint J 2021;103-B(1):79-86.
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Affiliation(s)
- Pablo A Slullitel
- 'Sir John Charnley' Hip Surgery Unit, Institute of Orthopaedics 'Carlos E. Ottolenghi', Italian Hospital of Buenos Aires, Buenos Aires, Argentina
| | - José I Oñativia
- 'Sir John Charnley' Hip Surgery Unit, Institute of Orthopaedics 'Carlos E. Ottolenghi', Italian Hospital of Buenos Aires, Buenos Aires, Argentina
| | - Ignacio Cima
- 'Sir John Charnley' Hip Surgery Unit, Institute of Orthopaedics 'Carlos E. Ottolenghi', Italian Hospital of Buenos Aires, Buenos Aires, Argentina
| | - Gerardo Zanotti
- 'Sir John Charnley' Hip Surgery Unit, Institute of Orthopaedics 'Carlos E. Ottolenghi', Italian Hospital of Buenos Aires, Buenos Aires, Argentina
| | - Fernando Comba
- 'Sir John Charnley' Hip Surgery Unit, Institute of Orthopaedics 'Carlos E. Ottolenghi', Italian Hospital of Buenos Aires, Buenos Aires, Argentina
| | - Francisco Piccaluga
- 'Sir John Charnley' Hip Surgery Unit, Institute of Orthopaedics 'Carlos E. Ottolenghi', Italian Hospital of Buenos Aires, Buenos Aires, Argentina
| | - Martin A Buttaro
- 'Sir John Charnley' Hip Surgery Unit, Institute of Orthopaedics 'Carlos E. Ottolenghi', Italian Hospital of Buenos Aires, Buenos Aires, Argentina
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Grosso MJ, Kozaily E, Cacciola G, Parvizi J. Characterizing Femoral and Acetabular Bone Loss in Two-Stage Revision Total Hip Arthroplasty for Infection. J Arthroplasty 2021; 36:311-316. [PMID: 32771289 DOI: 10.1016/j.arth.2020.07.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/08/2020] [Accepted: 07/11/2020] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND The process of infection and multiple procedure-related factors in 2-stage exchange arthroplasty may lead to severe bone loss that can complicate subsequent reimplantation. The primary purpose of this study is to quantitatively characterize the extent of bone loss on the femoral and acetabular side prior to reimplantation during 2-stage revision hip arthroplasty for infection. METHODS This retrospective case series includes 47 patients with planned 2-stage exchange arthroplasty for treatment of infected total hip replacement. Demographic, clinical, and surgical information, and complications during the 2-stage process were collected on all patients. The radiographs of all patients were reviewed prior to first-stage explantation and post-reimplantation or latest follow-up to characterize bone loss using the Paprosky classification systems. RESULTS Of the 47 patients with planned 2-stage exchange, 10 patients (21%) were not reimplanted. Following explant and spacer placement, 32 patients (68%) experienced progressive femoral bone loss, and 20 (43%) experienced progressive acetabular bone loss. Patients who experienced progression of both femoral and acetabular bone (14, 30%) had a longer time between resection and reimplantation (164 ± 128 vs 88 ± 26 days, P = .03). A reimplantation time of greater than 90 days was associated with an increased risk of combined bone loss progression (15% vs 53%, P = .01). For patients who underwent reimplantation (79%), increased bone loss led to high rates of diaphyseal femoral fixation (97%) and revision acetabular components (38%). CONCLUSION Increased time to reimplantation in 2-stage exchange arthroplasty for prosthetic hip infections is associated with a high rate of acetabular and femoral bone loss, and increased complexity of reimplantation.
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Affiliation(s)
- Matthew J Grosso
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Elie Kozaily
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Giorgio Cacciola
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Javad Parvizi
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
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Tuncay İ, Tözün R, Aliyev O, Dikmen G, Uzer G, Özden VE, Yıldız F. Onlay fibula autografting technique and its comparison with cortical allograft for the reconstruction of periprosthetic bone defects around the femur. INTERNATIONAL ORTHOPAEDICS 2020; 45:71-81. [PMID: 33206205 DOI: 10.1007/s00264-020-04876-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 11/09/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Bone defect around the femur related to revisions or periprosthetic fractures (PFF) is an issue. We present a bone defect reconstruction technique in femoral revisions and/or PFF using fibula autograft and compared our radiological and clinical results to that of allograft. METHODS A total of 53 patients who underwent revision hip arthroplasty and/or PFF fixation with the use of cortical fibula autograft (FG group) or cortical allograft (CG group) were evaluated. After exclusions, 20 patients who had minimum two years of follow-up were investigated for each group, for their radiological and clinical outcomes. RESULTS In FG and CG groups, the median ages were 69.5(44-90) and 62(38-88) years, follow-ups were 59(28-72) and 120(48-216) months, defect lengths were seven (1-10) and ten (1-17) cm, and grafts lengths were 16.5(10-30) and 20(12-37) cm, respectively. The rate of graft incorporation was 90% in each group and median time to incorporations were seven (4-12) and 12(6-24) months (p < 0.001), and graft resorption (moderate and severe) rates were 10% and 25% (p = 0.41), respectively. Median Harris Hip (77.6 vs 78.0), WOMAC (23.2 vs 22), SF-12 physical (50.0 vs 46.1), and SF-12 mental (53.8 vs 52.5) scores were similar between the groups, respectively. Kaplan-Meier survivorship analyses revealed an estimated mean survival of 100% at six years in FG group and 90% at 14 years in CG group. CONCLUSION In the reconstruction of periprosthetic bone defects after femoral revision or PPF, onlay cortical fibula autografts provide comparable clinical and radiological outcomes to allografts. Its incorporation is faster, it is cost-effective and easy to obtain without apparent morbidity.
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Affiliation(s)
- İbrahim Tuncay
- Department of Orthopedics and Traumatology, School of Medicine, Bezmialem Vakif University, Adnan Menderes Blv., Fatih, Istanbul, 34093, Turkey
| | - Remzi Tözün
- Department of Orthopedics and Traumatology, School of Medicine, Mehmet Ali Aydınlar University, Acibadem Maslak Hospital, Darüşşafaka Büyükdere Caddesi No No:40, Sarıyer, Istanbul, 34457, Turkey
| | - Orkhan Aliyev
- Department of Orthopedics and Traumatology, School of Medicine, Bezmialem Vakif University, Adnan Menderes Blv., Fatih, Istanbul, 34093, Turkey
| | - Göksel Dikmen
- Department of Orthopedics and Traumatology, School of Medicine, Mehmet Ali Aydınlar University, Acibadem Maslak Hospital, Darüşşafaka Büyükdere Caddesi No No:40, Sarıyer, Istanbul, 34457, Turkey
| | - Gökçer Uzer
- Department of Orthopedics and Traumatology, School of Medicine, Bezmialem Vakif University, Adnan Menderes Blv., Fatih, Istanbul, 34093, Turkey
| | - Vahit Emre Özden
- Department of Orthopedics and Traumatology, School of Medicine, Mehmet Ali Aydınlar University, Acibadem Maslak Hospital, Darüşşafaka Büyükdere Caddesi No No:40, Sarıyer, Istanbul, 34457, Turkey
| | - Fatih Yıldız
- Department of Orthopedics and Traumatology, School of Medicine, Bezmialem Vakif University, Adnan Menderes Blv., Fatih, Istanbul, 34093, Turkey.
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Femoral stem fractures after primary and revision hip replacements: A single-center experience. Jt Dis Relat Surg 2020; 31:557-563. [PMID: 32962589 PMCID: PMC7607938 DOI: 10.5606/ehc.2020.76162] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Objectives
This study aims to present our experience in the management of fractured femoral stems after primary and revision hip replacements by evaluating the clinical and radiographic characteristics and determining the effectiveness of the extraction methods. Patients and methods
A total of 15 patients (5 males, 10 females; mean age 65.9 years; range, 49 to 87 years) who underwent revision hip replacement due to a fractured femoral stem between January 2005 and December 2019 were included in this retrospective study. The mechanisms and risk factors for failure as well as methods applied to extract fractured stem were analyzed through clinical and radiographic data. Results
Nine patients had fractured cemented femoral stems, while six patients had fractured fully porous coated cementless revision stems. Lack of proximal buttress in distally fixed femoral stems was detected in 11 patients and identified as the predominant mechanism resulting in fracture. The proximal extraction method with conventional revision instrumentation, the cortical window technique, and extended trochanteric osteotomy (ETO) were used in three, seven, and five cases, respectively. Conclusion Our results demonstrated that the lack of proximal buttress is the most common reason for femoral stem fracture. Moreover, the proximal extraction method was mostly ineffective in fully porous femoral stems. A step-by-step approach should be considered for the extraction of a broken stem. The cortical window method can be considered as the second step if proximal extraction methods fail, and ETO should be considered at the last step if all techniques fail.
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Bicortical Contact Predicts Subsidence of Modular Tapered Stems in Revision Total Hip Arthroplasty. J Arthroplasty 2020; 35:2195-2199. [PMID: 32327285 DOI: 10.1016/j.arth.2020.03.047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 03/18/2020] [Accepted: 03/26/2020] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND We describe the intraoperative parameters that affect stem subsidence rates in tapered modular femoral stems for revision total hip arthroplasty (THA). We also determine the effect of the stem bicortical contact on subsidence rates and whether there is a minimum threshold bicortical contact that must be achieved to avoid the complication of subsidence. METHODS This is a retrospective cohort study consisting of 109 hips in 105 patients (53 males and 52 females) at a minimum of 2 years of follow-up. All revisions were carried out for Paprosky type 3A and 3B femoral deficits. Clinical outcomes included the indication for revision, aseptic re-revision surgery, specifications of the stem inserted, and specifications of the femoral head and acetabular components implanted. Radiographic outcome measures included subsidence (mm) and bicortical contact (mm). RESULTS Using multivariate regression analysis, 3 parameters were associated with an increased rate of stem subsidence. A reduced bicortical contact distance (P < .001) and a stem length of ≤155 mm (P < .001) were both associated with higher subsidence rates. We also demonstrated a novel threshold of 20-mm bicortical contact which must be achieved to significantly reduce subsidence rates in these modular femoral stems for revision THA. CONCLUSION Subsidence rates of modular tapered femoral stems for revision THA can be significantly reduced by increasing the initial bicortical contact of the stem within the diaphysis and the overall length of the femoral stem >155 mm. We describe a minimum threshold bicortical contact distance of 20 mm that should ideally be exceeded to significantly reduce the risk of stem subsidence within the femoral canal.
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Schwarze J, Theil C, Gosheger G, Dieckmann R, Moellenbeck B, Ackmann T, Schmidt-Braekling T. Promising results of revision total hip arthroplasty using a hexagonal, modular, tapered stem in cases of aseptic loosening. PLoS One 2020; 15:e0233035. [PMID: 32574168 PMCID: PMC7310743 DOI: 10.1371/journal.pone.0233035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 04/26/2020] [Indexed: 02/06/2023] Open
Abstract
Background Modular stems are widely used in revision total hip arthroplasty (THA) with aseptic loosening being a common reason for revision. Despite the good results reported on the use of modular stem designs, there are only few studies focusing on aseptic revisions and few studies on a hexagonal stem design. The goal of this study is to determine stem survival, clinical and functional outcome along with possible risk factors for implant failure in aseptic revision THA. Methods We retrospectively identified 53 patients with aseptic THA revision using a modular hexagonal stem with a minimum follow-up of two years. Femoral bone loss, radiographic and clinical outcomes as well as function measured using the Harris Hip Score (HHS) was assessed. Patients’ previous medical history was analyzed for comorbidities and the body mass index. Stem survival was calculated using the Kaplan-Meier method. Possible risk factors for implant failure were analyzed using the log-rank test. The median age at revision was 69 (IQR 62–73) with a median follow up of 74 months. Results Implant survival rates amounted to 90.4% at 3 and 5 years. The median HHS improved by 47 points (34 (IQR 22–47) vs 81 (IQR 59–90) p<0.001). There was a reduced implant survival after 5 years when the revision stem was used following a previous cemented stem (83.4% vs 100%, p = 0.04). Conclusion A modular, hexagonal stem can be successfully used in aseptic revision THA with remarkable functional results and excellent survivorship. Revision of a cemented stem using this implant might result in reduced survival which must be considered when planning treatment.
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Affiliation(s)
- Jan Schwarze
- Department of Orthopedics and Tumor Orthopedics, Muenster University Hospital, Muenster, Albert-Schweitzer-Campus, Muenster, Germany
- * E-mail:
| | - Christoph Theil
- Department of Orthopedics and Tumor Orthopedics, Muenster University Hospital, Muenster, Albert-Schweitzer-Campus, Muenster, Germany
| | - Georg Gosheger
- Department of Orthopedics and Tumor Orthopedics, Muenster University Hospital, Muenster, Albert-Schweitzer-Campus, Muenster, Germany
| | - Ralf Dieckmann
- Department of Orthopedics, Krankenhaus der Barmherzigen Brüder Trier, Nordallee, Germany
| | - Burkhard Moellenbeck
- Department of Orthopedics and Tumor Orthopedics, Muenster University Hospital, Muenster, Albert-Schweitzer-Campus, Muenster, Germany
| | - Thomas Ackmann
- Department of Orthopedics and Tumor Orthopedics, Muenster University Hospital, Muenster, Albert-Schweitzer-Campus, Muenster, Germany
| | - Tom Schmidt-Braekling
- Department of Orthopedics and Tumor Orthopedics, Muenster University Hospital, Muenster, Albert-Schweitzer-Campus, Muenster, Germany
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Matar HE, Selvaratnam V, Board TN, Purbach B, Porter ML, Kay PR, Shah N. Fractured Femoral Stems in Primary and Revision Hip Arthroplasties Revisited: Wrightington Experience. J Arthroplasty 2020; 35:1344-1350. [PMID: 32014380 DOI: 10.1016/j.arth.2020.01.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 11/30/2019] [Accepted: 01/09/2020] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND The aim of this study is to present our experience in managing fractured femoral stems over the last 10 years for both primary and revision stems at our tertiary unit focusing on modes of failure and operative techniques. METHODS This is a retrospective consecutive study of all patients with fractured femoral stems that were operatively managed in our unit between 2008 and 2018. Detailed radiographic evaluation (Paprosky classification) was undertaken and data collected on operative techniques used to extract distal fractured stem fragments. RESULTS Thirty-five patients (35 hips) were included (25 men/10 women) with average age at time of presentation of 68 years (range, 29-93). Average body mass index was 30 (standard deviation, 3.8; range, 22.5-39). There were variety of stems both contemporary and historical, primary and revision cases (15 hips polished tapered cemented stems, 10 hips composite beam and miscellaneous stems, and 10 revision hip stems). The predominant mechanism of failure was fatigue due to cantilever bending in distally fixed stems. Surgical techniques used to extract distal fragment were drilling technique in 2 hips, cortical window in 13 hips, extended trochanteric osteotomy (ETO) in 5 hips, and proximal extraction in 15 hips. CONCLUSION When faced with a contemporary fractured stem, drilling techniques into the distal fragment are unlikely to succeed. If a trochanteric osteotomy had been used at time of index surgery, this could be used again to aid proximal extraction with conventional revision instrumentations. The cortical window technique is useful but surgically demanding technique that is most successful in extracting polished tapered fractured stems particularly when an ETO is not planned for femoral reconstruction. Use of trephines can be useful for removal of longer, uncemented stems. Finally, an ETO might be necessary when other techniques have failed.
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Affiliation(s)
- Hosam E Matar
- Centre for Hip Surgery, Wrightington Hospital, Wigan, UK
| | | | - Tim N Board
- Centre for Hip Surgery, Wrightington Hospital, Wigan, UK
| | - Bodo Purbach
- Centre for Hip Surgery, Wrightington Hospital, Wigan, UK
| | | | - Peter R Kay
- Centre for Hip Surgery, Wrightington Hospital, Wigan, UK
| | - Nikhil Shah
- Centre for Hip Surgery, Wrightington Hospital, Wigan, UK
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21
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Khuangsirikul S, Chotanaphuti T. Management of femoral bone loss in revision total hip arthroplasty. J Clin Orthop Trauma 2020; 11:29-32. [PMID: 32001980 PMCID: PMC6985023 DOI: 10.1016/j.jcot.2019.12.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 12/11/2019] [Indexed: 10/25/2022] Open
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Born P, Manzoni I, Ilchmann T, Clauss M. Is cemented revision total hip arthroplasty a reasonable treatment option in an elderly population? Orthop Rev (Pavia) 2019; 11:8263. [PMID: 31616553 PMCID: PMC6790558 DOI: 10.4081/or.2019.8263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 08/25/2019] [Indexed: 12/03/2022] Open
Abstract
Revision THA is increasingly performed especially in the elderly population. The surgeon’s challenge is to provide a solution that supports immediate full weight-bearing, despite poor bone quality. Shape-closed revision stems facilitate that by combining cement fixation with additional press-fit anchoring. The design tolerates varying cement mantle thickness and inconsistent cancellous bone lining of the femoral canal. Following that philosophy, we present our mid-term results using a long version of a cemented Charnley- Kerboull type stem. From 2010 to 2017, 38 long Charnley-Kerboull revision stems (Centris®, Mathys European Orthopaedics, Bettlach, Switzerland) were implanted and followed prospectively. Surgery was performed via a Hardinge approach in supine position with a third generation cementing technique. Patients were mobilized using full-weight bearing as early as possible. Survival was determined for stem revision for aseptic loosening and stem and/or cup revision for any reason. 20 stems had a minimum follow-up (f/u) of 2 years and were included for further radiological analysis. Detailed subsidence analysis as an early predictor for later aseptic loosening was performed using EBRA-FCA software. Further, the presence of osteolysis and cement debonding was evaluated. Mean follow- up was 4 years. No patient was lost to f/u.18 died of causes unrelated to THA. Stem survival was 100%. Survival for any re-operation was 82.2% (two early infections, one soft-tissue debridement, one cup exchange for recurrent dislocations). None of the cases revised for septic loosening showed signs of persistent infection at final f/u. EBRA-FCA revealed two oligosymptomatic cases of subsidence of 5mm and 6mm over a course of 2 and 12 months, respectively, with stable implants thereafter. Neither required revision. There was no development of osteolysis or debonding. The stem provides a reliable early fullweight bearing solution for revision THA with excellent mid-term survival in an elderly population. Even in two cases where subsidence was present, mobility was not impaired and re-revision could be avoided.
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Affiliation(s)
- Philipp Born
- Clinic for Orthopedic and Trauma Surgery, Kantonsspital Baselland, Liestal
| | - Isabella Manzoni
- Clinic for Orthopedic and Trauma Surgery, Kantonsspital Baselland, Liestal
| | - Thomas Ilchmann
- Clinic for Orthopedic and Trauma Surgery, Kantonsspital Baselland, Liestal.,Hirslanden Klinik Birshof, Münchenstein
| | - Martin Clauss
- Clinic for Orthopedic and Trauma Surgery, Kantonsspital Baselland, Liestal.,Department of Orthopedics and Traumatology, University Hospital Basel, University of Basel, Switzerland
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Aggressive granulomatosis of the hip: a forgotten mode of aseptic failure. INTERNATIONAL ORTHOPAEDICS 2018; 43:1321-1328. [PMID: 30506086 DOI: 10.1007/s00264-018-4252-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 11/25/2018] [Indexed: 02/08/2023]
Abstract
PURPOSE It has been acknowledged that implant wear correlates with the risk for periprosthetic osteolysis, being aggressive granulomatosis the worst expression of bone resorption. We sought to determine the clinical, radiological, and histological features of aggressive granulomatosis after primary total hip arthroplasty (THA). METHODS We included nine cases with aggressive granulomatosis of the hip around cemented stems. Indications for revision THA consisted of progressive signs of extensive bone resorption or implant loosening. Mean follow-up since revision THA was 143 months (SD ± 59.4). We analysed clinical outcomes, component loosening and gross as well as histological characteristics of the granulomatous lesions. RESULTS Overall mean time between primary THA and revision surgery was 81 months (SD ± 20.8). All of the cases evidenced multiple ovoid tumour-like lesions around the stem with extensive bone loss. Only one case reported thigh pain before revision surgery, with radiological evidence of stem loosening; the remaining cases were asymptomatic with well-fixed implants. Gross anatomy findings revealed metallosis in the femoral canal and inside the cystic lesions. Pathology analysis showed monocyte-macrophage-dominated adverse foreign-body-type tissue reaction with fibroblastic reactive zones and granulomatous inflammation. CONCLUSIONS We found a prevalence of 1% of this aseptic mode of implant failure. Since most of the retrieved stems were not loose, we did not find any alarming clinical symptoms anticipating implant failure. In this scenario, surgeons should be aware of the rapidly progressive nature of this entity and propose a revision THA in a timely fashion.
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Costi K, Solomon LB, McGee MA, Rickman MS, Howie DW. Advantages in Using Cemented Polished Tapered Stems When Performing Total Hip Arthroplasty in Very Young Patients. J Arthroplasty 2017; 32:1227-1233. [PMID: 28082045 DOI: 10.1016/j.arth.2016.11.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 09/06/2016] [Accepted: 11/15/2016] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND The risk of revision following primary total hip arthroplasty (THA) is increased in young patients who undergo THA for pathologies other than primary osteoarthritis. We report the results of primary THA performed with cemented polished stems in patients aged 40 years and younger for pathologies other than primary osteoarthritis. METHODS We investigated 52 patients (65 hips) who underwent primary THA for secondary osteoarthritis with a cemented tapered polished stem between 1990 and 2007. Clinical and radiographic outcomes, available in 46 patients (57 hips), included the Harris Hip Scores, Societe Internationale de Chirurgie Orthopedique et de Traumatologie activity, patient satisfaction, stem survival and reoperations, and assessment of prosthesis-cement-bone radiolucencies, osteolysis, and femoral bone deficiencies. RESULTS Median patient age was 34 years (16-40) and follow-up was 14 years (mean 13, range 5-22). Stem survival to the endpoint revision for loosening was 100% and to the endpoint revision for any reason, excluding infection was 88% (95% confidence interval 78-98) at 16 years. No stem was revised for aseptic loosening. Nine stems were revised for other reasons. Radiographically, one stem was definitely loose at 16 years. The median patient Harris pain score improved from marked pain to no pain at latest follow-up. Patient activity level improved, albeit minimally, for 8 years after surgery. At latest follow-up, 98% of the patients remained satisfied with their surgery. CONCLUSION Primary THA with a cemented polished stem shows excellent results in young patients with pathology other than primary osteoarthritis. In addition, the stem design facilitates cement within cement exchange and therefore preservation of proximal femoral bone stock at revision surgery.
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Affiliation(s)
- Kerry Costi
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Lucian B Solomon
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital and Discipline of Orthopaedics and Trauma, The University of Adelaide, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Margaret A McGee
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Mark S Rickman
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital and Discipline of Orthopaedics and Trauma, The University of Adelaide, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Donald W Howie
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital and Discipline of Orthopaedics and Trauma, The University of Adelaide, Royal Adelaide Hospital, Adelaide, South Australia, Australia
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Ibrahim DA, Fernando ND. Classifications In Brief: The Paprosky Classification of Femoral Bone Loss. Clin Orthop Relat Res 2017; 475:917-921. [PMID: 27484412 PMCID: PMC5289194 DOI: 10.1007/s11999-016-5012-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 07/28/2016] [Indexed: 01/31/2023]
Affiliation(s)
- David A. Ibrahim
- Department of Orthopaedic Surgery, Adult Hip and Knee Reconstruction, University of Washington, 10330 Meridian Avenue N, Suite 270, Seattle, WA 98133 USA
| | - Navin D. Fernando
- Department of Orthopaedic Surgery, Adult Hip and Knee Reconstruction, University of Washington, 10330 Meridian Avenue N, Suite 270, Seattle, WA 98133 USA
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In Vitro Bioactivity Study of RGD-Coated Titanium Alloy Prothesis for Revision Total Hip Arthroplasty. BIOMED RESEARCH INTERNATIONAL 2016; 2016:8627978. [PMID: 27493968 PMCID: PMC4963553 DOI: 10.1155/2016/8627978] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Accepted: 04/17/2016] [Indexed: 12/19/2022]
Abstract
Total hip arthroplasty (THA) is a common procedure for the treatment of end-stage hip joint disease, and the demand for revision THA will double by 2026. Ti6Al4V (Titanium, 6% Aluminum, and 4% Vanadium) is a kind of alloy commonly used to make hip prothesis. To promote the osseointegration between the prothesis and host bone is very important for the revision THA. The peptide Arg-Gly-Asp (RGD) could increase cell attachment and has been used in the vascular tissue engineering. In this study, we combined the RGD with Ti6Al4V alloy using the covalent cross-linking method to fabricate the functional Ti6Al4V alloy (FTA). The distribution of RGD oligopeptide on the FTA was even and homogeneous. The FTA scaffolds could promote mouse osteoblasts adhesion and spreading. Furthermore, the result of RT-qPCR indicated that the FTA scaffolds were more beneficial to osteogenesis, which may be due to the improvement of osteoblast adhesion by the RGD oligopeptide coated on FTA. Overall, the FTA scaffolds developed herein pave the road for designing and building more efficient prothesis for osseointegration between the host bone and prothesis in revision THA.
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Tapered vs Cylindrical Stem Fixation in a Model of Femoral Bone Deficiency in Revision Total Hip Arthroplasty. J Arthroplasty 2016; 31:1352-1355. [PMID: 26795255 DOI: 10.1016/j.arth.2015.12.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 11/21/2015] [Accepted: 12/04/2015] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Distal fixation achieved with a tapered stem design has demonstrated favorable clinical results in revision total hip arthroplasty in the setting of severe bone defects. However, stem subsidence is common with this stem design. PURPOSE The purpose of this study is to compare the initial fixation stability of a tapered stem design to a fully porous-coated cylindrical stem design in a model of severe femoral bone deficiency. METHODS Tapered and cylindrical stems (n = 8) were implanted into a model femur with progressively shorter segments for fixation (9, 6, or 3 cm). The stems were axially loaded, and the force to produce subsidence was recorded. RESULTS Average loads to produce 150 μm of displacement with a 3-cm segment were higher for the tapered stem (393 N vs 221 N, P < .01). No difference was observed in the 6- or 9-cm models. Average loads to produce failure (>4-mm subsidence) were also higher for tapered stems with a 3-cm segment (1574 N vs 500 N, P < .0001). A regression analysis determined the minimum segment length of 1.5-2.5 cm to obtain stable fixation with a tapered stem design (R(2) = 0.78, P < .001). CONCLUSIONS Tapered stems required higher loads to produce subsidence than cylindrical stems in a revision THA model. Revision tapered stems require a minimum intact segment of 1.5-2.5 cm to obtain adequate initial fixation stability. Revision tapered stems have superior initial fixation stability to cylindrical stems in the setting of severe bone loss.
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Solomon LB, Costi K, Kosuge D, Cordier T, McGee MA, Howie DW. Revision total hip arthroplasty using cemented collarless double-taper femoral components at a mean follow-up of 13 years (8 to 20): an update. Bone Joint J 2015. [PMID: 26224818 DOI: 10.1302/0301-620x.97b8.34632] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The outcome of 219 revision total hip arthroplasties (THAs) in 98 male and 121 female patients, using 137 long length and 82 standard length cemented collarless double-taper femoral stems in 211 patients, with a mean age of 72 years (30 to 90) and mean follow-up of six years (two to 18) have been described previously. We have extended the follow-up to a mean of 13 years (8 to 20) in this cohort of patients in which the pre-operative bone deficiency Paprosky grading was IIIA or worse in 79% and 73% of femurs with long and standard stems, respectively. For the long stem revision group, survival to re-revision for aseptic loosening at 14 years was 97% (95% confidence interval (CI) 91 to 100) and in patients aged > 70 years, survival was 100%. Two patients (two revisions) were lost to follow-up and 86 patients with 88 revisions had died. Worst-case analysis for survival to re-revision for aseptic loosening at 14 years was 95% (95% CI 89 to 100) and 99% (95% CI 96 to 100) for patients aged > 70 years. One additional long stem was classified as loose radiographically but not revised. For the standard stem revision group, survival to re-revision for aseptic loosening at 14 years was 91% (95% CI 83 to 99). No patients were lost to follow-up and 49 patients with 51 hips had died. No additional stems were classified as loose radiographically. Femoral revision using a cemented collarless double-taper stem, particularly with a long length stem, and in patients aged > 70 years, continues to yield excellent results up to 20 years post-operatively, including in hips with considerable femoral metaphyseal bone loss.
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Affiliation(s)
- L B Solomon
- Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, South Australia 5000, Australia
| | - K Costi
- Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, South Australia 5000, Australia
| | - D Kosuge
- The Princess Alexandra Hospital, Hamstel Road, Harlow CM20 1QX, Essex, UK
| | - T Cordier
- Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, South Australia 5000, Australia
| | - M A McGee
- Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, South Australia 5000, Australia
| | - D W Howie
- Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, South Australia 5000, Australia
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Sheth NP, Melnic CM, Rozell JC, Paprosky WG. Management of severe femoral bone loss in revision total hip arthroplasty. Orthop Clin North Am 2015; 46:329-42, ix. [PMID: 26043047 DOI: 10.1016/j.ocl.2015.02.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Femoral bone loss is a complex problem in revision total hip arthroplasty. The Paprosky classification is used when determining the degree and location of bone loss. Meticulous operative planning is essential where severe bone loss is a concern. One must correctly identify the bone loss pattern, safely remove the existing components, and proceed with the proper reconstruction technique based on the pattern of bone loss. This article discusses the etiology and classification of bone loss, clinical and radiographic evaluation, components of effective preoperative planning, and clinical results of various treatment options with a focus on more severe bone loss patterns.
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Affiliation(s)
- Neil P Sheth
- Department of Orthopaedic Surgery, University of Pennsylvania, 800 Spruce Street, 8th Floor Preston Building, Philadelphia, PA 19107, USA
| | - Christopher M Melnic
- Department of Orthopaedic Surgery, University of Pennsylvania, 3737 Market Street, 6th Floor, Philadelphia, PA 19104, USA.
| | - Joshua C Rozell
- Department of Orthopaedic Surgery, University of Pennsylvania, 3737 Market Street, 6th Floor, Philadelphia, PA 19104, USA
| | - Wayne G Paprosky
- Department of Orthopaedic Surgery, Midwest Orthopaedics, Rush University, 1655 West Harrison Street, Chicago, IL 60612, USA
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Long stem cemented revision arthroplasty for aseptic loosening in elderly patients produces good results, despite significant bone loss. Hip Int 2014; 23:54-9. [PMID: 23397202 DOI: 10.5301/hip.2013.10615] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/24/2012] [Indexed: 02/04/2023]
Abstract
We assessed the results of long cemented stems in patients over 65 undergoing a first time revision hip arthroplasty for aseptic loosening. 103 patients were followed up for a minimum of five years after revision surgery; 45% had EndoKlinik C grade preoperative bone loss. At final follow-up 31 patients had died, all but one with the prosthesis in situ. There were 71 revisions alive, one had been revised for a peri-prosthetic fracture. Of the 45 that had radiographs at a minimum of five years, three stems were probably or definitely loose according to the Harris classification. There was 92% patient satisfaction and a mean Oxford Hip Score (OHS) of 25/60 in the 59 patients that had not been revised and had full clinical follow-up. Long-stem cemented revisions for aseptic loosening in elderly patients allow immediate postoperative weight bearing and have good radiological and clinical outcomes.
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Fink B, Urbansky K, Schuster P. Mid term results with the curved modular tapered, fluted titanium Revitan stem in revision hip replacement. Bone Joint J 2014; 96-B:889-95. [PMID: 24986941 DOI: 10.1302/0301-620x.96b7.33280] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We report our experience of revision total hip replacement (THR) using the Revitan curved modular titanium fluted revision stem in patients with a full spectrum of proximal femoral defects. A total of 112 patients (116 revisions) with a mean age of 73.4 years (39 to 90) were included in the study. The mean follow-up was 7.5 years (5.3 to 9.1). A total of 12 patients (12 hips) died but their data were included in the survival analysis, and four patients (4 hips) were lost to follow-up. The clinical outcome, proximal bone regeneration and subsidence were assessed for 101 hips. The mean Harris Hip Score was 88.2 (45.8 to 100) after five years and there was an increase of the mean Barnett and Nordin-Score, a measure of the proximal bone regeneration, of 20.8 (-3.1 to 52.7). Five stems had to be revised (4.3%), three (2.9%) showed subsidence, five (4.3%) a dislocation and two of 85 aseptic revisions (2.3%) a periprosthetic infection. At the latest follow-up, the survival with revision of the stem as the endpoint was 95.7% (95% confidence interval 91.9% to 99.4%) and with aseptic loosening as the endpoint, was 100%. Peri-prosthetic fractures were not observed. We report excellent results with respect to subsidence, the risk of fracture, and loosening after femoral revision using a modular curved revision stem with distal cone-in-cone fixation. A successful outcome depends on careful pre-operative planning and the use of a transfemoral approach when the anatomy is distorted or a fracture is imminent, or residual cement or a partially-secured existing stem cannot be removed. The shortest appropriate stem should, in our opinion, be used and secured with > 3 cm fixation at the femoral isthmus, and distal interlocking screws should be used for additional stability when this goal cannot be realised.
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Affiliation(s)
- B Fink
- Orthopaedic Clinic Markgröningen, Kurt-Lindemann-Weg 10, D-71706 Markgröningen, Germany
| | - K Urbansky
- Orthopaedic Clinic Markgröningen, Kurt-Lindemann-Weg 10, D-71706 Markgröningen, Germany
| | - P Schuster
- Orthopaedic Clinic Markgröningen, Kurt-Lindemann-Weg 10, D-71706 Markgröningen, Germany
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Abstract
Primary total hip arthroplasty (THA) is one of the most effective procedures for managing end-stage hip arthritis. The burden of revision THA procedures is expected to increase along with the rise in number of primary THAs. The major indications for revision THA include instability, aseptic loosening, infection, osteolysis, wear-related complications, periprosthetic fracture, component malposition, and catastrophic implant fracture. Each of these conditions may be associated with mild or advanced bone loss. Careful patient evaluation and bone loss classification guide preoperative planning and overall patient care. Historically, uncemented fixation has provided the best results, but cemented fixation is required in some cases.
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A comparison of modular tapered versus modular cylindrical stems for complex femoral revisions. J Arthroplasty 2013; 28:71-3. [PMID: 24034509 DOI: 10.1016/j.arth.2013.04.052] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Revised: 03/26/2013] [Accepted: 04/02/2013] [Indexed: 02/01/2023] Open
Abstract
The effect of distal geometry in modular stems in revision THA remains unclear. The purpose of this study is to compare femoral revisions with modular tapered versus modular cylindrical stems in high-grade defects. A multicenter review of 105 femoral revisions with Paprosky III/IV defects using modular titanium stems (61 tapered; 44 cylindrical) was performed with an average follow-up of 5 years. Demographic data was comparable between groups. The tapered group had more IIIB and IV defects (51% vs. 20%; P < .01). The failure rate for component osseointegration was 1.6% in the tapered group and 15.9% in the cylindrical group (P = <.01). The rate of femoral component re-revision for any reason was 4.9% in the tapered group and 22.7% in the cylindrical group (P = .013). Modular tapered stems were associated with lower rates of stem failure and improved bone ongrowth compared to cylindrical stems despite being used in femurs with greater defects.
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Brune JC, Hesselbarth U, Seifert P, Nowack D, von Versen R, Smith MD, Seifert D. CT Lesion Model-Based Structural Allografts: Custom Fabrication and Clinical Experience. ACTA ACUST UNITED AC 2012; 39:395-404. [PMID: 23800856 DOI: 10.1159/000345269] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Accepted: 10/11/2012] [Indexed: 01/06/2023]
Abstract
BACKGROUND Patients requiring knee and hip revision arthroplasty often present with difficult anatomical situations that limit options for surgery. Customised mega-implants may be one of few remaining treatment options. However, extensive damage to residual bone stock may also be present, and in such cases even customised prosthetics may be difficult to implant. Small quantities of lost bone can be replaced with standard allografts or autologous bone. Larger defects may require structural macro-allografts, sometimes in combination with implants (allograft-prosthesis composites). METHODS Herein, we describe a process for manufacturing lesion-specific large structural allografts according to a 3D, full-scale, lithographically generated defect model. These macro-allografts deliver the volume and the mechanical stability necessary for certain complex revisions. They are patient-and implant-matched, negate some requirements for additional implants and biomaterials and save time in the operating theatre by eliminating the requirement for intra-operative sizing and shaping of standard allografts. CONCLUSION While a robust data set from long-term follow-up of patients receiving customised macro-allografts is not yet available, initial clinical experience and results suggest that lesion-matched macro-allografts can be an important component of revision joint surgery.
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Howie DW, Costi K, McGee MA, Standen A, Solomon LB. Femoral bone is preserved using cemented polished stems in young patients. Clin Orthop Relat Res 2012; 470:3024-31. [PMID: 22528375 PMCID: PMC3462866 DOI: 10.1007/s11999-012-2327-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Techniques that ensure femoral bone preservation after primary THA are important in younger patients who are likely to undergo revision surgery. QUESTIONS/PURPOSES We examined femoral stem survival, bone deficiency at revision arthroplasty, and radiographic bone loss in hips implanted with a cemented polished double-taper stem in a cohort of patients younger than 55 years. METHODS We reviewed 197 hips (median patient age, 47 years; range, 16-54 years) after a minimum followup of 2 years (median, 7 years; range, 2-19 years) since primary THA. Clinically, we determined survival to major and minor stem revision and cases of bone deficiency requiring a long stem or impaction bone grafting or created by the need for femoral osteotomy at revision arthroplasty. Radiographically, we assessed stem loosening, femoral osteolysis, and femoral bone deficiency. RESULTS Stem survival to major revision for aseptic loosening was 100% at 13 years and for any reason was 97% (95% CI, 93-100%). At revision of seven stems, a long stem was used in one hip, a total femoral replacement in one hip and impaction bone grafting in one hip. No femoral osteotomies were required. Bone was preserved in four hips by cement-within-cement stem exchange. No stems were radiographically loose. Proximal osteolysis was present in 11% of femurs. Femoral bone deficiency was graded as Paprosky Type I (97%) or II (3%) and Endo-Klinik Grade 0 (79%) or I (21%). CONCLUSIONS Cemented polished taper stems have high survival at 13 years in young patients and enable femoral bone preservation for subsequent revision. LEVEL OF EVIDENCE Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Donald W. Howie
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, SA 5000 Australia ,Discipline of Orthopaedics and Trauma, School of Medicine, University of Adelaide, Adelaide, Australia
| | - Kerry Costi
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, SA 5000 Australia
| | - Margaret A. McGee
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, SA 5000 Australia ,Discipline of Orthopaedics and Trauma, School of Medicine, University of Adelaide, Adelaide, Australia
| | - Angela Standen
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, SA 5000 Australia
| | - Lucian B. Solomon
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital, L4 Bice Building, North Terrace, Adelaide, SA 5000 Australia ,Discipline of Orthopaedics and Trauma, School of Medicine, University of Adelaide, Adelaide, Australia
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Fink B, Grossmann A, Schulz MS. Bone regeneration in the proximal femur following implantation of modular revision stems with distal fixation. Arch Orthop Trauma Surg 2011; 131:465-70. [PMID: 20607253 DOI: 10.1007/s00402-010-1149-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2009] [Indexed: 11/30/2022]
Abstract
INTRODUCTION A quantitative analysis of the response of proximal femur bone to implantation of revision stems with distal fixation and of the factors that affect that response has not previously been published. MATERIALS AND METHODS A prospective study of 138 stem revision operations involving replacement with cementless, modular, titanium revision stems with distal fixation (Revitan, Zimmer GmbH, Winterthur, Switzerland) was designed to assess Barnett and Nordin scores at the proximal femur obtained immediately after surgery and at a 3-year follow-up examination in order to analyze bone regeneration in the proximal femur and associated response-modifying factors. RESULTS In general, a bone formation with increase of the Barnett and Nordin score was observed. However, stress shielding occurred in cases of osteoporosis or more severe bone defects. A statistical analysis of possible factors that might affect the bone response revealed that the degree of bone regeneration was directly related to the Barnett and Nordin score obtained immediately post-surgery and the severity of the bone defect and only indirectly to the length of the stem, which is determined by the type of bone defect, and to the necessity of interlocking screws. CONCLUSION Distally fixed titanium revision stems do not result in stress shielding per se. Proximal bone response depends mostly on the condition of the bone before and immediately after the operation and not, as stated in many reports, on surgical procedures such as method of approach or the thickness of the prosthesis.
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Affiliation(s)
- Bernd Fink
- Clinic of Joint Replacement, General and Rheumatic Orthopaedics, Orthopaedic Clinic Markgröningen gGmbH, Kurt-Lindemann-Weg 10, 71706 Markgröningen, Germany.
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Babis GC, Sakellariou VI, O'Connor MI, Hanssen AD, Sim FH. Proximal femoral allograft-prosthesis composites in revision hip replacement: a 12-year follow-up study. ACTA ACUST UNITED AC 2010; 92:349-55. [PMID: 20190304 DOI: 10.1302/0301-620x.92b3.23112] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We report the use of an allograft prosthetic composite for reconstruction of the skeletal defect in complex revision total hip replacement for severe proximal femoral bone loss. Between 1986 and 1999, 72 patients (20 men, 52 women) with a mean age of 59.9 years (38 to 78) underwent reconstruction using this technique. At a mean follow-up of 12 years (8 to 20) 57 patients were alive, 14 had died and one was lost to follow-up. Further revision was performed in 19 hips at a mean of 44.5 months (11 to 153) post-operatively. Causes of failure were aseptic loosening in four, allograft resorption in three, allograft nonunion in two, allograft fracture in four, fracture of the stem in one, and deep infection in five. The survivorship of the allograft-prosthesis composite at ten years was 69.0% (95% confidence interval 67.7 to 70.3) with 26 patients remaining at risk. Survivorship was statistically significantly affected by the severity of the pre-operative bone loss (Paprosky type IV; p = 0.019), the number of previous hip revisions exceeding two (p = 0.047), and the length of the allograft used (p = 0.005).
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Affiliation(s)
- G C Babis
- First Department of Orthopaedics, University of Athens, Attikon University General Hospital, 1 Rimini Street, Chaidari, Attica, Greece.
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Howie DW, Wimhurst JA, McGee MA, Carbone TA, Badaruddin BS. Revision total hip replacement using cemented collarless double-taper femoral components. ACTA ACUST UNITED AC 2007; 89:879-86. [PMID: 17673579 DOI: 10.1302/0301-620x.89b7.18981] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We investigated 219 revisions of total hip replacement (THR) in 211 patients using a collarless double-taper cemented femoral component. The mean age of the patients was 72 years (30 to 90). The 137 long and 82 standard length stems were analysed separately. The mean follow-up was six years (2 to 18), and no patient was lost to follow-up. Survival of the long stems to re-revision for aseptic loosening at nine years was 98% (95% confidence interval (CI) 94 to 100), and for the standard stems was 93% (95% CI 85 to 100). At five years, one long stem was definitely loose radiologically and one standard stem was probably loose. Pre-operative femoral bone deficiency did not influence the results for the long stems, and corrective femoral osteotomy was avoided, as were significant subsidence, major stress shielding and persistent thigh pain. Because of these reliable results, cemented long collarless double-taper femoral components are recommended for routine revision THR in older patients.
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Affiliation(s)
- D W Howie
- Department of Orthopaedics and Trauma, Royal Adelaide Hospital, University of Adelaide, Adelaide, SA 5000, Australia.
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Tsiridis E, Narvani AA, Charity J, Timperley JA, Gie GA. Intramedullary strut substitution and impaction allografting cemented revision for the treatment of a periprosthetic fracture in a severely compromised femur. J Arthroplasty 2007; 22:277-82. [PMID: 17275648 DOI: 10.1016/j.arth.2006.02.165] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2005] [Revised: 01/23/2006] [Accepted: 02/19/2006] [Indexed: 02/01/2023] Open
Abstract
Revision for the treatment of a B3 periprosthetic femoral fracture often requires proximal femoral allograft arthroplasty in physiologically young or tumor prostheses in elderly patients. Extramedullary strut allograft augmentation can only be used when the host femur is structurally adequate for the insertion of the revision stem (periprosthetic femoral fractures type B2) and appears to be an attractive biological concept as early incorporation to the host bone results in a sound biomechanical construct. We report here the simultaneous use of whole femur intramedullary strut substitution along with an extramedullary strut graft placement, with impaction allografting revision to a long cemented femoral prosthesis, to augment the deficient metadiaphyseal bone stock (Paprosky type IV) for the treatment of a complex type B3 periprosthetic femoral fracture.
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Affiliation(s)
- Eleftherios Tsiridis
- Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter Hospital NHS Trust, Exeter, United Kingdom
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Meneghini RM, Hallab NJ, Berger RA, Jacobs JJ, Paprosky WG, Rosenberg AG. Stem diameter and rotational stability in revision total hip arthroplasty: a biomechanical analysis. J Orthop Surg Res 2006; 1:5. [PMID: 17150125 PMCID: PMC1635007 DOI: 10.1186/1749-799x-1-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2006] [Accepted: 10/02/2006] [Indexed: 11/30/2022] Open
Abstract
Background Proximal femoral bone loss during revision hip arthroplasty often requires bypassing the deficient metaphyseal bone to obtain distal fixation. The purpose of this study was to determine the effect of stem diameter and length of diaphyseal contact in achieving rotational stability in revision total hip arthroplasty. Methods Twenty-four cadaveric femoral specimens were implanted with a fully porous-coated stem. Two different diameters were tested and the stems were implanted at multiple contact lengths without proximal bone support. Each specimen underwent torsional testing to failure and rotational micromotion was measured at the implant-bone interface. Results The larger stem diameter demonstrated a greater torsional stability for a given length of cortical contact (p ≤ 0.05). Decreasing length of diaphyseal contact length was associated with less torsional stability. Torsional resistance was inconsistent at 2 cm of depth. Conclusion Larger stem diameters frequently used in revisions may be associated with less diaphyseal contact length to achieve equivalent rotational stability compared to smaller diameter stems. Furthermore, a minimum of 3 cm or 4 cm of diaphyseal contact with a porous-coated stem should be achieved in proximal femoral bone deficiency and will likely be dependent on the stem diameter utilized at the time of surgery.
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Affiliation(s)
- R Michael Meneghini
- Joint Replacement Surgeons of Indiana Research Foundation, St. Vincent Center for Joint Replacement, Indianapolis, IN, USA
| | - Nadim J Hallab
- Department of Orthopaedic Surgery, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Richard A Berger
- Department of Orthopaedic Surgery, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Joshua J Jacobs
- Department of Orthopaedic Surgery, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Wayne G Paprosky
- Department of Orthopaedic Surgery, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Aaron G Rosenberg
- Department of Orthopaedic Surgery, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
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Nystuen CM, Leopold SS, Warme WJ, Simmons GE. Cancellous impaction and cortical strut allografting for revision shoulder arthroplasty: a case report. J Shoulder Elbow Surg 2006; 15:244-8. [PMID: 16517373 DOI: 10.1016/j.jse.2005.02.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2004] [Accepted: 02/07/2005] [Indexed: 02/01/2023]
Affiliation(s)
- Christopher M Nystuen
- Orthopaedic Surgery Service, William Beaumont Army Medical Center, El Paso, TX 79920-5001, USA
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Morgan HD, McCallister W, Cho MS, Casnellie MT, Leopold SS. Impaction allografting for femoral component revision: clinical update. Clin Orthop Relat Res 2004:160-8. [PMID: 15057092 DOI: 10.1097/00003086-200403000-00022] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The technique of cancellous impaction allografting with cement aims to reconstitute a bone-deficient proximal femur while also gaining stable fixation of the femoral prosthesis. Some reports of this technique imply it is a system, requiring not just an exacting surgical method, but also a particular implant design, the polished, double-tapered stem. Other series consider it a surgical technique, and have varied the femoral component design, the method of graft delivery, and other elements of the procedure. Our review evaluates the current literature, with the goal of beginning to ascertain whether published results suggest impaction grafting must be considered a system, requiring a particular stem design, or simply another means to achieve femoral reconstruction in the revision setting. The conclusive answer will require randomized, controlled clinical trials to evaluate particular elements of the procedure, and these studies have yet to be done. However, investigators have shown similarly good short-term to intermediate-term results with various femoral stems at numerous centers. Currently, femoral impaction allografting, whether as a system using particular implant designs or as a surgical technique, is an accepted alternative for revision of a failed femoral component, particularly when bone-stock deficiency is present.
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Affiliation(s)
- Hannah D Morgan
- Department of Orthopaedics and Sports Medicine, University of Washington Medical Center, 1959 NE Pacific Street, Seattle, WA 98195, USA
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Abstract
Revision of the femoral component is difficult in the presence of large cavitary defects of the femur. Impaction cancellous grafting used in conjunction with a cemented prosthesis has been recommended as a means of restoring bone stock while providing excellent and durable clinical results. Fifty-seven consecutive femoral revisions were done between 1993 and 1997 in 54 patients (24 men and 30 women) using the impaction grafting technique and a collarless, tapered, polished stem. Strut allografts were used for femoral reinforcement in 40 hips. No patient was lost to followup. One patient had an infection develop and had a resection arthroplasty. Three patients died of causes unrelated to the hip. After 6.3 years the clinical results were excellent. Radiographic evaluation showed no evidence of loosening in any of the 53 surviving hips. Subsidence of 1 to 3 mm was seen in 40 hips and subsidence of 4 to 6 mm was seen in two hips. Cancellous remodeling was observed in 42 hips. The most common complications were postoperative femoral fractures. All six fractures occurred at the distal end of the prosthesis, were not associated with prosthetic loosening, and were treated successfully with open reduction and internal fixation without prosthetic revision. These satisfactory results and the limited subsidence observed in our patients radiographs could be explained by the careful attention to the technical details of the procedure. However, even with the generous use of strut graft augmentation, postoperative femoral fractures remain our most serious complication.
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Zalzal P, Gandhi R, Petruccelli D, Winemaker MJ, de Beer J. Fractures at the tip of long-stem prostheses used for revision hip arthroplasty. J Arthroplasty 2003; 18:741-5. [PMID: 14513447 DOI: 10.1016/s0883-5403(03)00258-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
We report a retrospective analysis of the incidence of intraoperative femur fractures at the tip of the prosthesis in 45 consecutive, uncemented, long (205-mm), straight hydroxyapatite, fully coated stems used for revision arthroplasty of the hip. Five patients were lost to follow-up. Intraoperative fractures of the distal femur occurred in 7 cases (17.5%). In the remaining 33 cases in which no fracture occurred, the tip of the implanted stem was found to be potentially at risk for causing a fracture in 18 (55%) cases. We concluded that uncemented, 205-mm, straight femoral stems should be used with caution in the setting of revision hip surgery. A bowed stem of that length may be a safer alternative. Otherwise, a shorter, straight stem may reduce the risk of complications at the stem tip.
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Affiliation(s)
- Paul Zalzal
- Department of Orthopaedic Surgery, Mount Sinai Hospital, Toronto, Ontario, Canada
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Barden B, von Knoch M, Fitzek JG, Löer F. Periprosthetic fractures with extensive bone loss treated with onlay strut allografts. INTERNATIONAL ORTHOPAEDICS 2003; 27:164-7. [PMID: 12679890 PMCID: PMC3458444 DOI: 10.1007/s00264-002-0423-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/25/2002] [Indexed: 11/30/2022]
Abstract
We reviewed a consecutive series of 19 patients with comminuted periprosthetic fractures, loosening of the femoral stem (Vancouver type B3) and significant loss of bone stock (Paprosky type III and IV). Sixteen porous-coated long stems and three Exeter stems, all with impaction grafting, were used. Large femoral onlay strut allografts were applied to maintain fracture reduction and improve stability. There was one early re-fracture at the tip of the femoral stem. Eighteen fractures healed without deformity and shortening. At the last follow-up at mean 3.7 (2.0-7.5) years, the mean Harris hip score was 76.4 (57.5-92.0). There was ingrowth of all strut grafts and significant augmentation of periprosthetic bone.
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Affiliation(s)
- B Barden
- Department of Orthopaedic Surgery, University of Essen, Hufelandstr. 55, 45147 Essen, Germany.
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Abstract
Revision femoral surgery is a demanding procedure with the potential for severe intraoperative complications, including bone loss and femoral fracture. The extended trochanteric osteotomy is a reproducible and safe technique to remove the femoral components for infection, loosening, component failure, malposition, and dislocation. From 1992 to 1996, 142 consecutive hip revisions were performed with the use of an extended proximal femoral osteotomy. This technique allowed component extraction without fracture in all patients and subsequently allowed for neutral reaming of the femoral canal with placement of the revision stems in proper alignment. There were 2 nonunions of the osteotomized fragments at an average postoperative follow-up period of 2.6 years. Additional complications included 4 fractures of the osteotomized fragment and one malunion. We have found that use of the osteotomy is an efficient, safe and reliable technique in revision hip arthroplasty.
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Affiliation(s)
- Wayne G Paprosky
- Department of Orthopaedic Surgery, Rush Presbyterian St. Luke's Medical Center, Chicago, Illinois
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Weeden SH, Paprosky WG. Minimal 11-year follow-up of extensively porous-coated stems in femoral revision total hip arthroplasty. J Arthroplasty 2002; 17:134-7. [PMID: 12068424 DOI: 10.1054/arth.2002.32461] [Citation(s) in RCA: 187] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Between 1984 and 1989, 188 consecutive femoral revision surgeries were performed. Eighteen patients died or were lost to follow-up, and the remaining 170 patients were followed for 11 to 16 years (mean, 14.2 years). Radiographic evidence of a bone ingrown stem was present in 82% of the hips, stable fibrous fixation was present in 14% of the hips, and 4% of the hips were unstable. Six stems were revised to a larger, fully coated cementless implant. Proximal femoral osteolysis was seen in 23% of femora but was limited to Gruen zones 1 and 7. No diaphyseal osteolysis was seen. The overall mechanical failure rate in this series was 4.1%. Failure of fixation correlated highly with extent of bone loss present at the time of surgery. On the basis of the radiographic and clinical results at a mean follow-up of 14.2 years, we recommend the use of extensively coated femoral stems in revision hip arthroplasty.
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Abstract
Durable fixation of the femoral component to the bone in femoral revision arthroplasty of the hip is the main ingredient to a successful reconstruction. Because of poor durability of cemented fixation in revision, in 1984, one author began to use cementless fixation with extensively porous-coated chrome cobalt stems. The current authors report the durability of that fixation technique in 137 hips (134 patients) followed up 5 to 16 years. With a mean followup of 9.3 years, 10 (7%) of the stems have been removed. Five (4%) were removed for fixation problems and five (4%) were removed for infection. Using the radiographic criteria of Engh et al, 83% of the stems achieved bony ingrowth. No late failure of fixation was observed. Canal-filling prostheses were more likely to have bone ingrowth as were stems placed in femurs with lesser degrees of bone stock deficiency. Significant thigh pain was seen in 7% of bone ingrown stems, 16% of stable fibrous fixated stems, and 75% of unstable stems. Significant thigh pain in bone ingrown stems was observed more commonly in osteoporotic femurs and bone stock deficient femurs. Severe stress shielding correlated with preoperative osteoporosis and larger diameter stems but has not caused failure. Excellent durability of this fixation technique is evident.
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