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Ahmed K, Blunn GW. A scoring system to evaluate stability of percutaneous osseointegrated implants for transfemoral amputation with validation in the ITAP clinical trial. Proc Inst Mech Eng H 2024; 238:412-422. [PMID: 38415608 DOI: 10.1177/09544119241231890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Percutaneous osseointegrated implants for individuals with lower limb amputation can increase mobility, reduce socket related pain, and improve quality of life. It would be useful to have an evaluation method to assess the interface between bone and implant. We assessed outpatient radiographs from the Intraosseous Transcutaneous Amputation Prosthesis clinical trial using an interface scoring system which summed and weighted equally measures of implant collar cortical ongrowth and radiolucency along the implant stem/bone interface. Radiographs from 12 participants with unilateral transfemoral amputations (10 males, 2 females, mean age = 43.2, SD = 7.4 years) in the clinical trial from cohort I (implanted in 2008/09) or cohort II (implanted in 2013/14) were collated (mean image span = 7.2, SD = 2.4 years), scale normalised, zoned, and measured in a repeatable way. Interface scores were calculated and then compared to clinical outcomes. Explanted participants received the lowest interface scores. A higher ratio of stem to residuum and shorter residuum's produced better interface scores and there was an association (weak correlation) between participants with thin cortices and the lowest interface scores. A tapered, cemented, non curved stem may provide advantageous fixation while stem alignment did not appear critical. In summary, the interface score successfully demonstrated a non-invasive evaluation of percutaneous osseointegrated implants interfaces when applied to the Intraosseous Transcutaneous Amputation Prosthesis clinical trial. The clinical significance of this work is to identify events leading to aseptic or septic implant removal and contribute to clinical guidelines for monitoring rehabilitation, design and surgical fixation choices.
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Affiliation(s)
- Kirstin Ahmed
- Center for Bionics and Pain Research, Mölndal, Sweden
- Division of Surgery and Interventional Science, University College London, Stanmore, UK
| | - Gordon William Blunn
- Division of Surgery and Interventional Science, University College London, Stanmore, UK
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, UK
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Miller A, Jeyapalina S, Agarwal JP, Beck JP. Association between blood markers and the progression of osseointegration in percutaneous prostheses patients-A pilot study. J Biomed Mater Res B Appl Biomater 2024; 112:e35398. [PMID: 38456331 DOI: 10.1002/jbm.b.35398] [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: 12/28/2023] [Revised: 02/08/2024] [Accepted: 02/18/2024] [Indexed: 03/09/2024]
Abstract
Patients implanted with osseointegrated (OI) prosthetic systems have reported vastly improved upper and lower extremity prosthetic function compared with their previous experience with socket-suspension systems. However, OI systems have been associated with superficial and deep-bone infections and implant loosening due, in part, to a failure of the osseointegration process. Although monitoring the osseointegration using circulating biomarkers has clinical relevance for understanding the progression of osseointegration with these devices, it has yet to be established. Ten patients were enrolled in this study. Blood samples were collected at pre-selected times, starting before implantation surgery, and continuing to 12 months after the second surgery. Bone formation markers, bone resorption markers, and circulating amino acids were measured from blood samples. A linear mixed model was generated for each marker, incorporating patient ID and age with the normalized marker value as the response variable. Post hoc comparisons were made between 1 week before Stage 1 Surgery and all subsequent time points for each marker, followed by multiple testing corrections. Serial radiographic imaging of the residual limb containing the implant was obtained during follow-up, and the cortical index (CI) was calculated for the bone at the porous region of the device. Two markers of bone formation, specifically bone-specific alkaline phosphatase (Bone-ALP) and amino-terminal propeptide of type I procollagen (PINP), exhibited significant increases when compared with the baseline levels of unloaded residual bone prior to the initial surgery, and they subsequently returned to their baseline levels by the 12-month mark. Patients who experienced clinically robust osseointegration experienced increased cortical bone thickness at the porous coated region of the device. A medium correlation was observed between Bone-ALP and the porous CI values up to PoS2-M1 (p = .056), while no correlation was observed for PINP. An increase in bone formation markers and the lack of change observed in bone resorption markers likely reflect increased cortical bone formation induced by the end-loading design of the Utah OI device used in this study. A more extensive study is required to validate the correlation observed between Bone-ALP and porous CI values.
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Affiliation(s)
- Andrew Miller
- Research, George E. Wahlen Department of Veteran Affairs Medical Center, Salt Lake City, Utah, USA
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Utah, School of Medicine, Salt Lake City, Utah, USA
- Department of Biomedical Engineering, University of Utah School of Engineering, Salt Lake City, Utah, USA
| | - Sujee Jeyapalina
- Research, George E. Wahlen Department of Veteran Affairs Medical Center, Salt Lake City, Utah, USA
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Utah, School of Medicine, Salt Lake City, Utah, USA
- Department of Biomedical Engineering, University of Utah School of Engineering, Salt Lake City, Utah, USA
| | - Jayant P Agarwal
- Research, George E. Wahlen Department of Veteran Affairs Medical Center, Salt Lake City, Utah, USA
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Utah, School of Medicine, Salt Lake City, Utah, USA
| | - James Peter Beck
- Research, George E. Wahlen Department of Veteran Affairs Medical Center, Salt Lake City, Utah, USA
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Utah, School of Medicine, Salt Lake City, Utah, USA
- Department of Orthopaedics, University of Utah, School of Medicine, Salt Lake City, Utah, USA
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Harris AB, Wang KY, Mo K, Kebaish F, Raad M, Puvanesarajah V, Musharbash F, Neuman B, Khanna AJ, Kebaish KM. Bone Mineral Density T-Score is an Independent Predictor of Major Blood Loss in Adult Spinal Deformity Surgery. Global Spine J 2024; 14:153-158. [PMID: 35608515 PMCID: PMC10676180 DOI: 10.1177/21925682221097912] [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: 11/17/2022] Open
Abstract
STUDY DESIGN Retrospective Cohort Study. OBJECTIVE The purpose of this study was to determine the effect of low bone mineral density (BMD), as assessed by preoperative Dual-energy X-ray Absorptiometry (DEXA) scans, on intraoperative blood loss following adult spinal deformity (ASD) surgery. METHODS Patients who received spinal fusion for ASD (>5 levels fused) at a single academic center from 2010-2018 were included in this study. The lowest preoperative T-score was recorded for patients who had preoperative DEXA scans within a year of surgery. Patients with liver/kidney disease or on prescription anticoagulant medication were excluded. Major blood loss was a binary variable defined as above or below the 90th percentile of our cohort. Binomial regression was performed controlling for age, number of vertebrae fused, 3-column osteotomy, primary vs. revision surgery, preoperative platelet count, and if the patient was taking medication for osteoporosis. RESULTS 91 patients were identified in the cohort. Mean age was 63 ± 11.6 years, 81% female. 56 (62%) of cases included revision of previous instrumentation. Patients had a mean SVA of 9.6 ± 8.6 cm and median of 9 vertebrae fused (range 5-22). The average T-score was -1.2 ± 1.0. Each point lower T-score was associated with significantly higher odds of major blood loss (OR 2.5, 95% CI 1.0 - 5.9) when controlling for age, number of vertebrae fused, 3-column osteotomy, preoperative platelet count and primary vs. revision surgery. CONCLUSIONS Preoperative T-score is independently associated with increased odds of major blood loss in ASD surgery.
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Affiliation(s)
- Andrew B. Harris
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Kevin Y. Wang
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Kevin Mo
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Floreana Kebaish
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Michael Raad
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Varun Puvanesarajah
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Farah Musharbash
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Brian Neuman
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Akhil Jay Khanna
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Khaled M. Kebaish
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
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McMenemy L, Behan FP, Kaufmann J, Cain D, Bennett AN, Boos CJ, Fear NT, Cullinan P, Bull AMJ, Phillips ATM, McGregor AH. Association Between Combat-Related Traumatic Injury and Skeletal Health: Bone Mineral Density Loss Is Localized and Correlates With Altered Loading in Amputees: the Armed Services Trauma Rehabilitation Outcome (ADVANCE) Study. J Bone Miner Res 2023; 38:1227-1233. [PMID: 37194399 DOI: 10.1002/jbmr.4794] [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: 10/28/2022] [Revised: 02/08/2023] [Accepted: 02/22/2023] [Indexed: 05/18/2023]
Abstract
The association between combat-related traumatic injury (CRTI) and bone health is uncertain. A disproportionate number of lower limb amputees from the Iraq and Afghanistan conflicts are diagnosed with osteopenia/osteoporosis, increasing lifetime risk of fragility fracture and challenging traditional osteoporosis treatment paradigms. The aim of this study is to test the hypotheses that CRTI results in a systemic reduction in bone mineral density (BMD) and that active traumatic lower limb amputees have localized BMD reduction, which is more prominent with higher level amputations. This is a cross-sectional analysis of the first phase of a cohort study comprising 575 male adult UK military personnel with CRTI (UK-Afghanistan War 2003 to 2014; including 153 lower limb amputees) who were frequency-matched to 562 uninjured men by age, service, rank, regiment, deployment period, and role-in-theatre. BMD was assessed using dual-energy X-ray absorptiometry (DXA) scanning of the hips and lumbar spine. Femoral neck BMD was lower in the CRTI than the uninjured group (T-score -0.08 versus -0.42 p = .000). Subgroup analysis revealed this reduction was significant only at the femoral neck of the amputated limb of amputees (p = 0.000), where the reduction was greater for above knee amputees than below knee amputees (p < 0.001). There were no differences in spine BMD or activity levels between amputees and controls. Changes in bone health in CRTI appear to be mechanically driven rather than systemic and are only evident in those with lower limb amputation. This may arise from altered joint and muscle loading creating a reduced mechanical stimulus to the femur resulting in localized unloading osteopenia. This suggests that interventions to stimulate bone may provide an effective management strategy. © 2023 Crown copyright and The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR). This article is published with the permission of the Controller of HMSO and the King's Printer for Scotland.
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Affiliation(s)
- Louise McMenemy
- Centre for Blast Injury Studies, Department of Bioengineering, Imperial College London, London, UK
- Academic Department of Military Surgery and Trauma, Royal Centre for Defence Medicine, Birmingham, UK
- Institute of Naval Medicine, Gosport, UK
| | - Fearghal P Behan
- Centre for Blast Injury Studies, Department of Bioengineering, Imperial College London, London, UK
| | - Josh Kaufmann
- Centre for Blast Injury Studies, Department of Bioengineering, Imperial College London, London, UK
- Structural Biomechanics, Department of Civil and Environmental Engineering, Imperial College London, London, UK
- Musculoskeletal Biodynamics, Imperial College London, London, UK
| | - David Cain
- Academic Department of Military Surgery and Trauma, Royal Centre for Defence Medicine, Birmingham, UK
| | - Alexander N Bennett
- Academic Department of Military Rehabilitation, Defence Medical Rehabilitation Centre, Loughborough, UK
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, UK
| | - Christopher J Boos
- Academic Department of Military Rehabilitation, Defence Medical Rehabilitation Centre, Loughborough, UK
- Academic Department of Military Mental Health, King's College London, London, UK
- Faculty of Health & Social Sciences, Bournemouth University, Bournemouth, UK
- Cardiology, University Hospitals Dorset NHS Foundation Trust, Poole Hospital, Poole, UK
| | - Nicola T Fear
- Academic Department of Military Mental Health, King's College London, London, UK
| | - Paul Cullinan
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, UK
| | - Anthony M J Bull
- Centre for Blast Injury Studies, Department of Bioengineering, Imperial College London, London, UK
| | - Andrew T M Phillips
- Structural Biomechanics, Department of Civil and Environmental Engineering, Imperial College London, London, UK
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Hughes JM, Greeves JP. Editorial on: Association between Combat-Related Traumatic Injury and Skeletal Health: Bone Mineral Density Loss Is Localized and Correlates with Altered Loading in Amputees: The ADVANCE Study. J Bone Miner Res 2023; 38:1223-1224. [PMID: 37607690 DOI: 10.1002/jbmr.4891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 07/25/2023] [Accepted: 08/01/2023] [Indexed: 08/24/2023]
Affiliation(s)
- Julie M Hughes
- Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, MA, USA
| | - Julie P Greeves
- Army Health and Performance Research, Army Headquarters, Andover, UK
- Division of Surgery and Interventional Science, University College London, London, UK
- Norwich Medical School, University of East Anglia, Norwich, UK
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Hoellwarth JS, Oomatia A, Tetsworth K, Vrazas E, Al Muderis M. Bone density changes after five or more years of unilateral lower extremity osseointegration: Observational cohort study. Bone Rep 2023; 18:101682. [PMID: 37205925 PMCID: PMC10189091 DOI: 10.1016/j.bonr.2023.101682] [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: 01/18/2023] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 05/21/2023] Open
Abstract
Context Rehabilitation following lower extremity amputation presents multiple challenges, many related to the traditional prosthesis (TP) socket. Without skeletal loading, bone density also rapidly decreases. Transcutaneous osseointegration for amputees (TOFA) surgically implants a metal prosthesis attachment directly into the residual bone, facilitating direct skeletal loading. Quality of life and mobility are consistently reported to be significantly superior with TOFA than TP. Objective To investigate how femoral neck bone mineral density (BMD, g/cm2) changes for unilateral transfemoral and transtibial amputees at least five years following single-stage press-fit osseointegration. Methods Registry review was performed of five transfemoral and four transtibial unilateral amputees who had dual x-ray absorptiometry (DXA) performed preoperatively and after at least five years. The average BMD was compared using Student's t-test (significance p < .05). First, all nine Amputated versus Intact limbs. Second, the five patients with local disuse osteoporosis (ipsilateral femoral neck T-score < -2.5) versus the four whose T-score was greater than -2.5. Results The average Amputated Limb BMD was significantly less than the Intact Limb, both Before Osseointegration (0.658 ± 0.150 vs 0.929 ± 0.089, p < .001) and After Osseointegration (0.720 ± 0.096 vs 0.853 ± 0.116, p = .018). The Intact Limb BMD decreased significantly during the study period (0.929 ± 0.089 to 0.853 ± 0.116, p = .020), while the Amputated Limb BMD increased a not statistically significant amount (0.658 ± 0.150 to 0.720 ± 0.096, p = .347). By coincidence, all transfemoral amputees had local disuse osteoporosis (BMD 0.545 ± 0.066), and all transtibial patients did not (BMD 0.800 ± 0.081, p = .003). The local disuse osteoporosis cohort eventually had a greater average BMD (not statistically significant) than the cohort without local disuse osteoporosis (0.739 ± 0.100 vs 0.697 ± 0.101, p = .556). Conclusions Single-stage press-fit TOFA may facilitate significant BMD improvement to unilateral lower extremity amputees with local disuse osteoporosis.
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Affiliation(s)
- Jason Shih Hoellwarth
- Limb Lengthening and Complex Reconstruction Service, Osseointegration Limb Replacement Center, Hospital for Special Surgery, 535 East 70th Street, New York 10021, NY, USA
- Corresponding author.
| | - Atiya Oomatia
- Limb Reconstruction Centre, Macquarie University Hospital, Macquarie University, Macquarie Park, Australia
| | - Kevin Tetsworth
- Department of Orthopaedic Surgery, Royal Brisbane and Women's Hospital, Queensland, Australia
| | - Elisabeth Vrazas
- Macquarie School of Medicine Macquarie University, Suite 305, Level 3/2 Technology Pl, Macquarie Park, NSW 2109, Australia
| | - Munjed Al Muderis
- Limb Reconstruction Centre, Macquarie University Hospital, Macquarie University, Macquarie Park, Australia
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Hagberg K, Ghasemi Jahani SA, Omar O, Thomsen P. Osseointegrated prostheses for the rehabilitation of patients with transfemoral amputations: A prospective ten-year cohort study of patient-reported outcomes and complications. J Orthop Translat 2022; 38:56-64. [PMCID: PMC9588992 DOI: 10.1016/j.jot.2022.09.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/31/2022] [Accepted: 09/06/2022] [Indexed: 02/16/2023] Open
Abstract
Background Methods Results Conclusion
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Affiliation(s)
- Kerstin Hagberg
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,Department of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden,Corresponding author. Department of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden.
| | - Shadi Afarin Ghasemi Jahani
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Omar Omar
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Peter Thomsen
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Mohamed J, Reetz D, van de Meent H, Schreuder H, Frölke JP, Leijendekkers R. What Are the Risk Factors for Mechanical Failure and Loosening of a Transfemoral Osseointegrated Implant System in Patients with a Lower-limb Amputation? Clin Orthop Relat Res 2022; 480:722-731. [PMID: 34889879 PMCID: PMC8923606 DOI: 10.1097/corr.0000000000002074] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/16/2021] [Accepted: 11/09/2021] [Indexed: 01/31/2023]
Abstract
BACKGROUND Septic loosening and stem breakage due to metal fatigue is a rare but well-known cause of orthopaedic implant failure. This may also affect the components of the osseointegrated implant system for individuals with transfemoral amputation who subsequently undergo revision. Identifying risk factors is important to minimize the frequency of revision surgery after implant breakage. QUESTIONS/PURPOSES (1) What proportion of patients who received an osseointegrated implant after transfemoral amputation underwent revision surgery, and what were the causes of those revisions? (2) What factors were associated with revision surgery when stratified by the location of the mechanical failure and (septic) loosening (intramedullary stem versus dual cone adapter)? METHODS Between May 2009 and July 2015, we treated 72 patients with an osseointegrated implant. Inclusion criteria were a minimum follow-up of 5-years and a standard press-fit cobalt-chromium-molybdenum (CoCrMb) transfemoral osseointegrated implant. Based on that, 83% (60 of 72) of patients were eligible; a further 3% (2 of 60) were excluded because of no received informed consent (n = 1) and loss to follow-up (n = 1). Eventually, we included 81% (58 of 72) of patients for analysis in this retrospective, comparative study. We compared patient characteristics (gender, age, and BMI), implant details (diameter of the intramedullary stem, length of the dual cone, and implant survival time), and event characteristics (infectious complications and distal bone resorption). The data were retrieved from our electronic patient file and from our cloud-based database and analyzed by individuals not involved in patient care. Failures were categorized as: (1) mechanical failures, defined as breakage of the intramedullary stem or dual-cone adapter, or (2) (septic) loosening of the osseointegrated implant. RESULTS Thirty-four percent (20 of 58) of patients had revision surgery. In 12% (7 of 58) of patients, the reason for revision was due to intramedullary stem failures (six breakages, one septic loosening), and in 22% (13 of 58) of patients it was due to dual-cone adaptor failure (10 weak-point breakages and four distal taper breakages; one patient broke both the weak-point and the dual-cone adapter). Smaller median stem diameter (failure: 15 mm [interquartile range 1.3], nonfailure: 17 mm [IQR 2.0], difference of medians 2 mm; p < 0.01) and higher median number of infectious events (failure: 6 [IQR 11], nonfailure: 1 [IQR 3.0], difference of medians -5; p < 0.01) were associated with revision intramedullary stem surgery. No risk factors could be identified for broken dual-cone adapters. CONCLUSION Possible risk factors for system failure of this osteointegration implant include small stem diameter and high number of infectious events. We did not find factors associated with dual-cone adapter weak-point failure and distal taper failure, most likely because of the small sample size. When treating a person with a lower-limb amputation with a CoCrMb osseointegrated implant, we recommend avoiding a small stem diameter. Further research with longer follow-up is needed to study the success of revised patients. LEVEL OF EVIDENCE Level III, therapeutic study.
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Affiliation(s)
- Jamal Mohamed
- Department of Surgery, Radboud University Medical Center, Nijmegen, the Netherlands
| | - David Reetz
- Department of Surgery, Radboud University Medical Center, Nijmegen, the Netherlands
- Orthopedic Research Laboratory, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Henk van de Meent
- Department of Rehabilitation, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Hendrik Schreuder
- Department of Orthopedics, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Jan Paul Frölke
- Department of Surgery, Radboud University Medical Center, Nijmegen, the Netherlands
- Orthopedic Research Laboratory, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Ruud Leijendekkers
- Orthopedic Research Laboratory, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
- Department of Rehabilitation, Radboud University Medical Center, Nijmegen, the Netherlands
- Radboud Institute for Health Sciences, IQ Healthcare, Radboud University Medical Center, Nijmegen, the Netherlands
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Schnadthorst PG, Lison A, Schulze C. Rehabilitation of Patients with Osseointegrated Prosthesis after Transfemoral Amputation - Literature-based Recommendation for Postoperative Rehabilitative Procedure. ZEITSCHRIFT FUR ORTHOPADIE UND UNFALLCHIRURGIE 2021. [PMID: 34555855 DOI: 10.1055/a-1545-5486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Osseointegrative implantation after amputation of the lower extremity is a special treatment option. Physiotherapeutic treatment is important for the functional outcome. This study systematically evaluated existing follow-up treatment protocols to establish a literature-based recommendation for postoperative rehabilitation procedures. METHODOLOGY A PubMed literature search was conducted on December 10, 2020, using the following search terms: (osseo-integrat* OR endo-exo OR boneanchored OR bone anchored) AND (prosthe*) AND (leg OR lower limb* OR lower extremit* OR transfem* OR transtib*) AND (rehabilitation). 113 publications were found in this context. 10 of them met inclusion criteria. The Cochrane risk of bias tool was used to determine the publications' quality. RESULTS Three systematic rehabilitation protocols have been described: Osseointegrated Prostheses for the Rehabilitation of Amputees protocol, Osseointegration Group of Australia Accelerated protocol and Radboud Amputation: rehabilitation protocol for endo-exo femoral prosthesis. There are clear differences in the duration of the rehabilitation protocols. The quality of published studies is limited due to the high risk of bias and low evidence levels (mainly III - V). A concept for long-term rehabilitation has not been described yet. CONCLUSIONS There are various protocols for rehabilitation after treatment with osseointegrative prosthesis. Gradually increasing axial weight bearing started shortly after surgery; step-by-step gait training, adaptation of the prosthesis to the new biomechanics and critical patient selection and pre-operative training have been proven useful for successful rehabilitation. Controlled comparative studies, standardised outcome measurements or comparative studies between different protocols are not available. Models for multi-level long-term care have not been described in the literature so far.
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Affiliation(s)
| | - Andreas Lison
- Bundeswehr Centre of Sports Medicine, Warendorf, Germany
| | - Christoph Schulze
- Bundeswehr Centre of Sports Medicine, Warendorf, Germany.,University Medicine Rostock, Department of Orthopaedic Surgery, Rostock, Germany
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Safari R. Lower limb prosthetic interfaces: Clinical and technological advancement and potential future direction. Prosthet Orthot Int 2020; 44:384-401. [PMID: 33164655 DOI: 10.1177/0309364620969226] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The human-prosthesis interface is one of the most complicated challenges facing the field of prosthetics, despite substantive investments in research and development by researchers and clinicians around the world. The journal of the International Society for Prosthetics and Orthotics, Prosthetics and Orthotics International, has contributed substantively to the growing body of knowledge on this topic. In celebrating the 50th anniversary of the International Society for Prosthetics and Orthotics, this narrative review aims to explore how human-prosthesis interfaces have changed over the last five decades; how research has contributed to an understanding of interface mechanics; how clinical practice has been informed as a result; and what might be potential future directions. Studies reporting on comparison, design, manufacturing and evaluation of lower limb prosthetic sockets, and osseointegration were considered. This review demonstrates that, over the last 50 years, clinical research has improved our understanding of socket designs and their effects; however, high-quality research is still needed. In particular, there have been advances in the development of volume and thermal control mechanisms with a few designs having the potential for clinical application. Similarly, advances in sensing technology, soft tissue quantification techniques, computing technology, and additive manufacturing are moving towards enabling automated, data-driven manufacturing of sockets. In people who are unable to use a prosthetic socket, osseointegration provides a functional solution not available 50 years ago. Furthermore, osseointegration has the potential to facilitate neuromuscular integration. Despite these advances, further improvement in mechanical features of implants, and infection control and prevention are needed.
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Affiliation(s)
- Reza Safari
- Health and Social Care Research Centre, University of Derby, Derby, UK
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