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Abstract
Reoperation rates are higher in total ankle arthroplasties (TAAs) compared with ankle arthrodesis. Infection rates for primary TAAs are 1.4% to 2.4%. The survival rate of TAA is approximately 75% to 90% at 10 years. Arc of motion is maintained with TAAs compared with ankle arthrodesis. Ankle arthrodesis increases arc of motion through the talonavicular joint. Several factors are strong reasons to favor ankle fusion rather than TAA. TAA and ankle arthrodesis are effective treatments of end-stage ankle arthritis but the choice must be tailored to individual patients.
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Review |
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81 |
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Usuelli FG, Maccario C, Pantalone A, Serra N, Tan EW. Identifying the learning curve for total ankle replacement using a mobile bearing prosthesis. Foot Ankle Surg 2017; 23:76-83. [PMID: 28578798 DOI: 10.1016/j.fas.2016.02.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 01/31/2016] [Accepted: 02/16/2016] [Indexed: 02/04/2023]
Abstract
BACKGROUND Total ankle arthroplasty remains a technically demanding surgery highly influenced by the operator experience. However, no consensus exists regarding the ideal number of cases that need to be performed before a surgeon is considered proficient. The aim of this study was to identify the learning curve of a specific replacement system with regards to intraoperative and postoperative outcomes. METHODS The first 31 patients undergoing total ankle arthroplasty were examined. No additional procedures were performed at the time of the TAA. Intraoperative characteristics, postoperative complications, as well as clinical and radiologic outcomes were assessed with 24-month follow-up. Learning curves, examining the relationship between surgeon experience and patient outcomes, were determined using the Moving Average Method. RESULTS The operatory time, and the risk of intraoperative fractures decreased with increasing surgeon experience with the learning curve stabilizing after the 14th and 24th patient, respectively. Furthermore, there appeared to be a learning curve associated with most of the important clinical and radiological outcomes. The number of patients required to stabilize the learning curve for the VAS, ROM, and AOFAS was 11, 14 and 28, respectively. Radiographically, there appeared to be a learning curve of 22 patients required to stabilize the tibio-talar ratio. There was no learning curve associated with the SF-12 PCS and MCS as well as the α-, β-, and γ-angle. CONCLUSION This study demonstrates that a surgical learning curve does indeed exist when performing TAA. Most of the operative variables as well as clinical and radiological outcomes stabilize after a surgeon has performed 28 cases.
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Jeyaseelan L, Si-Hyeong Park S, Al-Rumaih H, Veljkovic A, Penner MJ, Wing KJ, Younger A. Outcomes Following Total Ankle Arthroplasty: A Review of the Registry Data and Current Literature. Orthop Clin North Am 2019; 50:539-548. [PMID: 31466669 DOI: 10.1016/j.ocl.2019.06.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
End-stage ankle arthritis has a significant effect on function and quality of life. Total ankle arthroplasty continues to emerge as a safe and effective treatment of ankle arthritis. Ankle arthroplasty preserves motion at the ankle joint, while still achieving the primary goal of pain relief. With encouraging outcomes and improved implant longevity, there has been significant improvement on the results of first-generation implants. Further high-quality studies are required to clarify outcomes post ankle arthroplasty. This article reviews the latest data from national registries and the wider literature to evaluate the current status with outcomes of modern total ankle replacements.
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Review |
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33 |
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Rodrigues-Pinto R, Muras J, Martín Oliva X, Amado P. Total ankle replacement in patients under the age of 50. Should the indications be revised? Foot Ankle Surg 2013; 19:229-33. [PMID: 24095229 DOI: 10.1016/j.fas.2013.05.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2012] [Revised: 03/04/2013] [Accepted: 05/24/2013] [Indexed: 02/04/2023]
Abstract
BACKGROUND High physical demand and young age are currently considered contraindications for total ankle replacement. This study aimed to compare its results between patients under the age of 50 and those aged 50 or older. METHODS 103 patients derived from an ongoing prospective multicentric study with a mean follow-up of 41 (range, 24-72) months were included in this study. Clinical status (AOFAS score), range of motion (ROM), complication and survivorship rates were compared between <50 and ≥50 patients. RESULTS ROM and AOFAS score were significantly higher, as were their increases relatively to pre-operative values in patients <50. Complication and survivorship rates were comparable between both groups. CONCLUSIONS At medium-term, ankle replacement is at least as effective in patients under the age of 50 as in those with aged 50 or older. Long-term results will allow to assess whether surgical indications for should be revised.
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Comparative Study |
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Change in gait biomechanics after total ankle replacement and ankle arthrodesis: a systematic review and meta-analysis. Clin Biomech (Bristol, Avon) 2020; 73:213-225. [PMID: 32044672 DOI: 10.1016/j.clinbiomech.2020.01.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 12/21/2019] [Accepted: 01/17/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND The aim of this systematic review with meta-analysis was to determine the change in gait biomechanics after total ankle replacement and ankle arthrodesis for end-stage osteoarthritis. METHODS Electronic databases were searched up until May 2019. Peer-reviewed journal studies including adult participants suffering from end-stage ankle osteoarthritis and reporting pre- and post-operative kinematics, kinetics and spatio-temporal effects of total ankle replacement and ankle arthrodesis during walking were included with a minimum of 12 months follow-up. Seventeen suitable studies were identified and assessed according to methodological and biomechanical qualities. Meta-analysis was performed by calculating the effect size using standard mean differences between pre- and post-operative gait status. FINDINGS Seventeen studies with a total of 883 patients were included. Meta-analysis revealed moderate evidence of an improvement in lower limb kinematics, kinetics and spatio-temporal parameters after total ankle replacement. Moderate evidence indicated an increase in ankle moment, hip range of motion and walking speed after ankle arthrodesis. INTERPRETATION The currently available evidence base of research papers evaluating changes in gait biomechanics after total ankle replacement and ankle arthrodesis is limited by a lack of prospective research, low sample sizes and heterogeneity in the patho-etiology of ankle osteoarthritis. Following total ankle replacement, improvements were demonstrated for spatio-temporal, kinematic and kinetic gait patterns compared to the pre-operative measures. Improvements in gait mechanics after ankle arthrodesis were limited to walking speed and ankle moment. Increased hip range of motion after ankle arthrodesis could represent a sign of compensation for the lack of ankle motion.
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Meta-Analysis |
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Glazebrook M, Burgesson BN, Younger AS, Daniels TR. Clinical outcome results of total ankle replacement and ankle arthrodesis: a pilot randomised controlled trial. Foot Ankle Surg 2021; 27:326-331. [PMID: 33148476 DOI: 10.1016/j.fas.2020.10.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 09/18/2020] [Accepted: 10/09/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND Ankle arthrodesis (AA) and replacement (TAA) are widely accepted options in managing end-stage ankle arthritis (ESAA). We hypothesize that clinical outcomes would be similar for both interventions. METHODS We conducted a multicenter randomized controlled trial that collected data on patient demographics, complication rates, Ankle Osteoarthritis Scale (AOS) and Short Form-36 (SF-36) scores. We evaluated pre and postoperative scores within and between cohorts. RESULTS The thirty-nine ankles enrolled had a mean follow-up of 5.1 ± 2.8 years. Total AOS scores improved significantly in both groups; 59.4 ± 15.9 to 38 ± 20 (p-value = 0.002) for TAA and 64.6 ± 19.7 to 31.8 ± 16.5 (p-value < 0.001) for AA at last follow-up. Complication rate was higher in the AA cohort with four major complications (20%). CONCLUSION We observed a statistically significant benefit with TAA and AA. As a pilot trial, this study is meant to inform on design and feasibility of future RCTs. LEVEL OF EVIDENCE II.
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Multicenter Study |
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King A, Bali N, Kassam AA, Hughes A, Talbot N, Sharpe I. Early outcomes and radiographic alignment of the Infinity total ankle replacement with a minimum of two year follow-up data. Foot Ankle Surg 2019; 25:826-833. [PMID: 30638815 DOI: 10.1016/j.fas.2018.11.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 09/24/2018] [Accepted: 11/03/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND The Infinity total ankle replacement (Wright Medical Technology, Memphis, TN) is a low profile, fluoroscopically navigated, fixed-bearing device. We hypothesised that the fluoroscopic navigation would allow more accurate alignment of the prosthesis than conventional techniques. We present our minimum two year follow up data of Infinity ankle replacements. METHODS All total ankle replacements (TARs) performed at our institution were prospectively followed-up with EQ5-D and MOx-FQ scores as well as intra-operative radiation exposure and radiographic alignment data. Post-operative radiographs were used to measure the alignment of the prostheses. We identified 20 implants with minimum of two year follow up which were compared to a control group of 20 Zenith TAR's (Corin, Cirencester, UK). RESULTS Intra-operative fluoroscopic navigation has allowed excellent alignment of all prostheses. Median deviations from 90° alignment to the anatomical axis of the tibia were 1.5° and 1.2° in the anterior-posterior (AP) and lateral planes respectively, compared to 2.8° and 3.1° in the Zenith group. This difference reached significance (p=<0.05) using the Mann-Whitney U test. At 2 years, MOx-FQ scores had fallen from pre-operative mean of 63.9∓17.1 to 15∓12.7. EQ-5D VAS scores had improved from 71.3∓17.3 to 81.4∓9.7 points. Radiation exposure had a mean screening time of 82∓29.4s and a decrease in exposure per patient was observed over time. No patients have undergone, or are awaiting, revision surgery. Complications include one intraoperative medial malleolar tip avulsion fracture, one medial malleolar stress fracture, and one patient who developed CRPS. CONCLUSIONS We present evidence that this system achieves better anatomical alignment of the components when compared to techniques without fluoroscopic navigation. The implant survival and complication profile at a minimum of two years is satisfactory.
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Rodrigues-Pinto R, Muras J, Martín Oliva X, Amado P. Functional results and complication analysis after total ankle replacement: early to medium-term results from a Portuguese and Spanish prospective multicentric study. Foot Ankle Surg 2013; 19:222-8. [PMID: 24095228 DOI: 10.1016/j.fas.2013.06.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Revised: 03/03/2013] [Accepted: 06/29/2013] [Indexed: 02/04/2023]
Abstract
BACKGROUND Ankle arthroplasty is increasingly being used to treat end-stage ankle osteoarthritis. METHODS Between January 2005 and January 2011, 159 patients have been included in an ongoing prospective multicentric study analysing the results of total ankle arthroplasty in Portugal and Spain. 119 patients (119 replacements) were available for review and were evaluated for range of motion (ROM), clinical status (American Orthopaedic Foot & Ankle Society (AOFAS) ankle-hindfoot score), complications and survivorship rate. RESULTS Mean follow-up was 39 months. A total of 17 complications were reported, with 7 leading to subsequent surgery (94.1% survivorship rate). Of these, there were two infections (98.3% survivorship rate), two painful subtalar arthritis, one instability, one malalignment and one tibial bone cyst. Complications not requiring further surgery were 6 intra-operative malleolar fractures and 4 cases of skin necrosis. CONCLUSIONS Adequate patient selection and a thorough knowledge of the surgical technique are mandatory to reduce the number of complications and increase ankle arthroplasty survivorship.
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Multicenter Study |
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20 |
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Usuelli FG, Maccario C, Indino C, Manzi L, Gross CE. Tibial slope in total ankle arthroplasty: Anterior or lateral approach. Foot Ankle Surg 2017; 23:84-88. [PMID: 28578799 DOI: 10.1016/j.fas.2016.10.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 09/25/2016] [Accepted: 10/16/2016] [Indexed: 02/04/2023]
Abstract
BACKGROUND A new total ankle arthroplasty (TAA) system performed through a lateral approach provides direct visualization of the centre of rotation, allowing for accurate reconstruction of the joint alignment and less bone resection. Radiographic references are needed to describe deformities and plan the surgical procedures. The tibial slope is an important factor when treating malalignment. The aim of this study is to show if there is any difference regarding the post-operative tibial slope (β angle) measurement comparing a fixed-bearing TAA through a lateral approach and a mobile-bearing TAA through an anterior approach. METHODS The study included 217 ankles. Between May 2011 and April 2015, 77 patients underwent a TAA with a mobile-bearing implant through an anterior approach and 45 with a fixed-bearing implant through a lateral approach: in these patients the β angle was measured 2 and 12 months postoperatively. 95 subjects with unilateral post-traumatic ankle arthritis composed the control group: in these patients we measured the anterior distal tibial angle (ADTA) of the controlateral, non arthritic tibiotalar joint. RESULTS In the mobile-bearing group, the mean β angle at 2 and 12 months postoperatively was 86.4±3.1 and 86.8±3.1 (p-value=0.12). In the fixed-bearing group, the mean β angle at 2 and 12 months postoperatively was 83.1±5.4 and 83.9±6.5 (p-value=0.26). A statistically significant difference was found between the β angle of the two groups. In the control group the mean ADTA was 84.9±2.5. A non-statistically significant difference was observed only between β angle of the fixed-bearing group and the ADTA of the control group. CONCLUSIONS Regarding the tibial slope, fixed-bearing TAA through a lateral approach showed a more anatomic placement. In contrast, β angle in mobile-bearing group appeared more reproducible than fixed-bearing group.
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Controlled Clinical Trial |
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10
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D'Ambrosi R, Banfi G, Usuelli FG. Total ankle arthroplasty and national registers: What is the impact on scientific production? Foot Ankle Surg 2019; 25:418-424. [PMID: 30321963 DOI: 10.1016/j.fas.2018.02.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 02/04/2018] [Accepted: 02/26/2018] [Indexed: 02/04/2023]
Abstract
PURPOSE The purpose of this systematic review was to analyze clinical studies on total ankle replacement (TAR) whose data were extracted from national registers. METHODS A systematic review of the literature, to identify all studies reporting outcomes after TAR, was performed. Two independent investigators performed the research using MEDLINE, CINAHL (Cumulative Index to Nursing and Allied Health Literature), Embase and Cochrane Databases (1950 to December 2017). The search terms used were "total ankle replacement" or "total ankle arthroplasty" AND "register" or "registers" or "registry" or "registries" or "national registry" or "national register". RESULTS Analysis of the literature included 18 articles from 2007 to 2017. Of these 5 articles performed a comprehensive analysis of the national registers, 5 articles evaluated complications and reasons of failure after TAR, 6 articles made a specific outcome register analysis, one article compared TAR and ankle arthrodesis while the last one analyzed the role of TAR in patients with rheumatoid arthritis. CONCLUSIONS Scientific publications extracted from national joint registers for total ankle replacement provide useful but heterogeneous information on implants survivorship, implant models and risk factors. There is still a discrepancy between the data reported by designers in clinical studies and the data reported by the registries. The centralization of registers in specialized hospitals with dedicated surgeons, the use of patient reported outcomes (PROMs) in association with surgeon assessments and periodical publications can improve the development of registries and consequently of the literature in this regard.
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Systematic Review |
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11
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Chappell TM, Ebert CC, McCann KM, Hutchinson BL, Rodriguez-Collazo E. Distal tibial distraction osteogenesis-an alternative approach to addressing limb length discrepancy with concurrent hindfoot and ankle reconstruction. J Orthop Surg Res 2019; 14:244. [PMID: 31362774 PMCID: PMC6668173 DOI: 10.1186/s13018-019-1264-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Accepted: 07/08/2019] [Indexed: 02/07/2023] Open
Abstract
Background Limb length discrepancy (LLD) in the setting of concurrent hindfoot and ankle deformity poses an added level of complexity to the reconstructive surgeon. Regardless of etiology, a clinically significant LLD poses additional challenges without a forthright and validated solution. The purpose of the current study is to determine whether reconstructive hindfoot and ankle surgery with concurrent lengthening through a distal tibial corticotomy is comparable to other treatment alternatives in the literature. Patients and methods A retrospective review of hindfoot and ankle deformity correction utilizing Ilizarov circular external fixation with concurrent distal tibial distraction osteogenesis from July 2009 to September 2014 was conducted. Results This study included 19 patients with a mean age of 47.47 ± 13.36 years with a mean follow up of 576.13 ± 341.89 days. The mean preoperative LLD was 2.70 ± 1.22 cm and the mean operatively induced LLD was 2.53 ± 0.59 cm. The mean latency period was 9.33 ± 3.47 days and distraction rate was 0.55 ± 0.16 mm/day. The mean distraction length was 2.14 ± 0.83 cm and mean duration of external fixation was 146.42 ± 58.69 days. The time to union of all hindfoot and ankle fusions was 121.00 ± 25.66 days with an overall fusion rate of 85.71%. Conclusions The successful treatment of hindfoot and ankle deformity correction in the setting of LLD using the technique of a distal tibial corticotomy and distraction osteogenesis is reported and illustrates an additional treatment technique with comparable measured outcomes to those previously described. We urge that each patient presentation be evaluated with consideration of all described approaches and associated literature to determine the current best reconstructive approach as future studies may validate or replace the accepted options at present.
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Journal Article |
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12
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Abstract
Salvage arthrodesis for failed total ankle replacement can be a successful procedure. The decision to perform salvage arthrodesis is based on many factors, but the following are the most important indications: severe loss of bonestock (tibia, talus, or both), inadequate soft tissue coverage, or the inability to eradicate an infection. With few revision implants on the market, salvage arthrodesis is currently the most common treatment for failed replacement and justification for revision ankle replacement is limited when any of these factors are present.
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Review |
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Gundapaneni D, Tsatalis JT, Laughlin RT, Goswami T. Wear characteristics of WSU total ankle replacement devices under shear and torsion loads. J Mech Behav Biomed Mater 2015; 44:202-23. [PMID: 25676360 DOI: 10.1016/j.jmbbm.2014.12.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 12/06/2014] [Accepted: 12/08/2014] [Indexed: 11/15/2022]
Abstract
BACKGROUND There are several factors that contribute to the failure of total ankle replacement (TAR). Aseptic loosening is one of the primary mechanisms of failure in TAR. Since a cross-linked ultrahigh molecular weight polyethylene (UHMWPE) is used as liner material, there is a need to quantify and develop methods to estimate the wear rates of the liners. High contact stresses develop during the gait generates wear debris resulting in osteolysis and early loosening of the prostheses. METHODS In this paper wear characteristics of Wright State University (WSU) TARs were determined by applying shear and torsion loads. Viscoelastic properties were used to model the liner component. Finite element analysis was conducted to determine the wear rate by deriving Von Mises and contact stresses generated in the liner and wear rate equation was used to predict the wear rate. RESULTS Titanium alloy has shown less resistance towards shear forces when compared with other metal alloys. Under torsion, rotation angle plays a significant role in affecting the peak stress values. The maximum average contact stress was 14.46 MPa under torsion load which contributes to a wear rate of 0.67 (mm(3)/year) for one of the mobile bearing models. The maximum average contact stress and wear rate obtained from the analytical study were 10.55 MPa and 0.33 (mm(3)/year), respectively for mobile bearing models. When compared with mobile bearing model, fixed bearing model has shown higher stresses at different degrees of rotation. CONCLUSION Both shear and torsion loads cause significantly lower contact stresses and wear when compared to the axial load. Further studies are necessary to accurately determine the wear behavior of fixed bearing TAR models.
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Risk factors for total ankle arthroplasty failure: A Dutch Arthroplasty Register study. Foot Ankle Surg 2022; 28:883-886. [PMID: 34949541 DOI: 10.1016/j.fas.2021.12.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 11/16/2021] [Accepted: 12/05/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Studies concerning total ankle arthroplasty could be influenced by several forms of bias. Independent national arthroplasty registries represent objective data on survival and patient reported outcomes. The aim of this study was to determine survival and identify risk factors for early failure in a nationwide series of total ankle arthroplasties from the Dutch Arthroplasty Register (LROI). PATIENTS AND METHODS Data of 810 patients, who received 836 total ankle arthroplasties between 2014 and 2020 were obtained from the Dutch Arthroplasty Register (LROI) with a median follow-up of 38 months (range 1-84 months). Survival was expressed in Kaplan-Meier analysis and associated hazard ratios for implant failure were determined. Implant failure was defined as the need for revision surgery for any reason or (pan)arthrodesis. RESULTS During follow-up, we recorded 39 failures (4.7%) resulting in a implant survival of 95.3% with a median follow-up of 38 months (range 1-84 months). Medial malleolus osteotomy (HR = 2.27), previous surgery (HR = 1.83), previous osteotomy (HR = 2.82) and previous ligament reconstruction (HR = 2.83) all showed potentially clinically meaningful associations with a higher incidence of implant failure, yet only previous OCD treatment (HR = 6.21), BMI (HR = 1.09) and age (HR = 0.71) were statistically significant. INTERPRETATION Excellent short-term survival (95.3%) with a median follow-up of 38 months was reported for TAA patients from the Dutch Arthroplasty Register. Patients with a lower age, a higher BMI or who had a prior surgical OCD treatment before TAA surgery appear to have a higher risk for revision after short-term clinical follow-up. Thorough patient selection with emphasis on risk factors associated with early implant failure might be essential to improve TAA survivorship.
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Hussain RM. Metallic 3D Printed Total Talus Replacement: A Case Study. J Foot Ankle Surg 2021; 60:634-641. [PMID: 33509721 DOI: 10.1053/j.jfas.2020.10.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 09/23/2020] [Accepted: 10/01/2020] [Indexed: 02/03/2023]
Abstract
Total talar replacement is a viable treatment option for talar injuries and pathologies. We present a single case study of a 73-year-old female with idiopathic necrosis of the talar which was treated with a total talar replacement prosthesis. A patient specific custom talar prosthesis was created using the mirror image of the contralateral healthy talus obtained using a CT scan of the contralateral limb. The patient underwent surgical resection of the pathologic talus with implantation of the custom talar prosthesis. At the 12 month mark the foot function index (FFI) score improved from 95.9% pre-op to 4.7% post op and american orthopedic foot and ankle score 0 pre-op to 94 post op. Further research and longer followup will be needed, but the current results are very favorable.
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Case Reports |
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Avashia YJ, Shammas RL, Mithani SK, Parekh SG. Soft Tissue Reconstruction After Total Ankle Arthroplasty. Foot Ankle Clin 2017; 22:391-404. [PMID: 28502354 DOI: 10.1016/j.fcl.2017.01.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Wound complications following total ankle replacement are common. A team approach, including plastic surgeons, should be utilized to manage these wound issues. The handling of the wound, from the index procedure, to a variety of flaps, can be utilized to provide a successful outcome following an ankle replacement.
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Review |
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17
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Reinders J, von Stillfried F, Altan E, Sonntag R, Heitzmann DW, Kretzer JP. Force-controlled dynamic wear testing of total ankle replacements. Acta Biomater 2015; 12:332-340. [PMID: 25448342 DOI: 10.1016/j.actbio.2014.10.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 09/19/2014] [Accepted: 10/26/2014] [Indexed: 12/28/2022]
Abstract
Currently, our knowledge of wear performance in total ankle replacements is limited. The aim of this study is to develop a scenario for force-controlled testing and wear testing of total ankle replacements. A force-controlled wear test was developed: based on cadaver measurements, the passive stabilization (ligaments and soft tissue) of the ankle joint was characterized and a restraint model for ankle stabilization was developed. Kinematics and kinetics acting at the replaced ankle joint were defined based on literature data and gait analysis. Afterwards, force-controlled wear testing was carried out on a mobile, three-component, total ankle replacement design. Wear was assessed gravimetrically and wear particles were analyzed. Wear testing resulted in a mean wear rate of 18.2±1.4mm(3)/10(6) cycles. Wear particles showed a mean size of 0.23μm with an aspect ratio of 1.61±0.96 and a roundness of 0.62±0.14. Wear testing of total ankle replacement shows that a relevant wear mass is generated with wear particles in a biologically relevant size range. The developed wear test provides a basis for future wear testing of total ankle replacements.
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Cottom JM, DeVries JG, Hyer CF, McAlister JE, Sorensen MD. Current Techniques in Total Ankle Arthroplasty. Clin Podiatr Med Surg 2022; 39:273-293. [PMID: 35365326 DOI: 10.1016/j.cpm.2021.11.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Total ankle replacement (TAR) continues to increase in popularity as a motion-preserving option to ankle arthrodesis. TAR is indicated for primary, posttraumatic and inflammatory arthropathies as an alternative procedure to tibiotalar arthrodesis. Proper patient selection is paramount to a successful outcome in TAR. Contraindications to TAR include the presence of neuropathy, active infection, severe peripheral arterial disease, inadequate bone stock, and severe uncorrectable coronal plane deformity. This article is a brief overview of techniques and PEARLS on how to address a well-aligned ankle joint, varus deformity as well as valgus deformities as well as the authors' experience with single versus staging coronal plane deformities.
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Review |
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Albagli A, Ge SM, Park P, Cohen D, Epure L, Chaytor RE, Volesky M. Total ankle arthroplasty results using fixed bearing CT-guided patient specific implants in posttraumatic versus nontraumatic arthritis. Foot Ankle Surg 2022; 28:222-228. [PMID: 33814289 DOI: 10.1016/j.fas.2021.03.015] [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] [Received: 09/30/2020] [Revised: 03/10/2021] [Accepted: 03/19/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Patients who undergo total ankle arthroplasty (TAA) for end-stage posttraumatic ankle osteoarthritis have previously reported more complications and lower satisfaction than those with non-traumatic etiologies. The purpose of this study was to evaluate clinical and radiographic outcomes in these two patient groups after TAA using a newer generation implant. METHODS Patients underwent TAA with a third generation implant using CT-based patient-specific cutting guides. Patients were evaluated clinically using the Foot and Ankle Ability Measure (FAAM) and radiographically at a mean follow up of 32, and 24 months respectively. RESULTS Forty-one patients were studied (26 posttraumatic, 15 nontraumatic). There were no significant differences between the two study groups in FAAM scores (p=0.3423) and radiographic measurements. CONCLUSION We were able to show comparable results in terms of patient satisfaction, short term clinical and radiographic results between traumatic and nontraumatic patients using newer patient specific implant systems.
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Coetzee JC, Raduan F, McGaver RS. Converting Ankle Arthrodesis to a Total Ankle Arthroplasty. Orthop Clin North Am 2021; 52:181-190. [PMID: 33752840 DOI: 10.1016/j.ocl.2020.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Several articles in the literature discuss the positive results of converting a painful ankle fusion to an ankle replacement. Our results confirm that in well-selected cases a conversion to a total ankle replacement is not only possible, but also significantly improves quality of life and reduces pain. The outcome of a total ankle replacement after an ankle fusion depends to a degree on the method of fusion. Less destructive fusion that is arthroscopic has better results than conventional transfibular open fusions. Absence of a fibula should be an absolute contraindication for a conversion.
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The 15 year ankle arthroplasty experience in a university hospital. Foot Ankle Surg 2022; 28:217-221. [PMID: 33789795 DOI: 10.1016/j.fas.2021.03.016] [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: 10/28/2020] [Revised: 02/17/2021] [Accepted: 03/19/2021] [Indexed: 02/04/2023]
Abstract
INTRODUCTION The study aim was to review the experience of ankle replacement surgery in a university teaching hospital. METHODS A retrospective review of primary ankle replacements performed between 2005 and 2019 was undertaken. Implant survival and reasons for revision surgery were assessed, along with patient reported outcomes and complications. RESULTS There were 157 ankle replacements implanted in 140 patients with a mean follow up 7.5 years (range 1.0-14.5). There were 108 Mobility™, 19 Zenith™ and 30 Infinity™ ankle replacements with an overall revision rate of 9.6% at a mean 4.0 years (range 0.1-11.0). Overall survivorship analysis for 5, 10 and 15 years was respectively 92.4%, 89.3% and 86.6%. DISCUSSION The revision rate was comparable to international registers and aseptic loosening was the commonest reason for revision. This study, in a teaching university hospital with an average of 10 primary ankle replacements each year, highlighted ankle arthroplasty provides good functional outcomes and medium term implant survivorship. This supports the use of ankle arthroplasty within foot and ankle specialist centres achieving appropriate outcomes.
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Abstract
Total ankle arthroplasty is a topic that has recently gained increasing interest, largely due to the improved outcomes, which have been demonstrated by short- and mid-term research studies on the newer, third-generation implant designs. The purpose of this review is to provide an updated assessment of the quality of outcomes research on total ankle arthroplasty.
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Place ZJ, Macdonald DJ, Clement ND, Shalaby H, McKinley JC. Primary total ankle replacement surgery is a cost-effective intervention. Foot (Edinb) 2021; 49:101830. [PMID: 34536817 DOI: 10.1016/j.foot.2021.101830] [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: 01/23/2021] [Revised: 05/19/2021] [Accepted: 05/22/2021] [Indexed: 02/04/2023]
Abstract
AIMS The primary aim was to assess the cost-effectiveness of primary total ankle replacements (PTAR) in the UK. Secondary aim was to identify predictors associated with increased cost-effectiveness of PTAR. METHODS Pre-operative and six-month post-operative data was obtained over a 90-month period across the two centres receiving adult referrals in the UK. The EuroQol general health questionnaire (EQ-5D-3L) measured health-related Quality of Life (HRQoL) and the Manchester-Oxford Foot Questionnaire (MOXFQ) measured joint function. Predictors, tested for significance with QALYs gained, were pre-operative scores and demographic data including age, gender, BMI and socioeconomic status. A cost per QALY of less than £20,000 was defined as cost effective. RESULTS The 51-patient cohort [mean age 67.70 (SD 8.91), 58.8% male] had 47.7% classed as obese or higher. Cost per QALY gained was £1669, rising to £4466 when annual (3.5%) reduction in health gains and revision rates and discounting were included. Lower pre-operative EQ-5D-3L index correlated significantly with increased QALYs gained (p < 0.01), all other predictors were not significantly (p > 0.05) associated with QALYs gained. CONCLUSIONS PTAR is a cost-effective intervention for treating end-stage ankle arthritis. Pre-operative EQ-5D-3L was associated with QALYs gained. A pre-operative EQ-5D-3L score of 0.57 or more was not cost effective to operate on.
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Gahr P, Wittmüß J, Martin H, Beyer T, Fischer DC, Mittlmeier T. Placing the tibial component of an ankle prosthesis: results of a CT-based simulation in healthy adults. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY & TRAUMATOLOGY : ORTHOPEDIE TRAUMATOLOGIE 2024; 34:4093-4098. [PMID: 39331136 PMCID: PMC11519218 DOI: 10.1007/s00590-024-04112-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2024] [Accepted: 09/22/2024] [Indexed: 09/28/2024]
Abstract
PURPOSE To characterize the 3D geometry of the distal tibia resection area from healthy individuals using CT-based digital implantation for proper preoperative sizing of TAA tibia component placement. METHODS Standardized CT images of healthy ankle joints serving as intra-individual references for treatment of contralateral injuries were identified. The tibial cross section dedicated to virtually host the tibial component was digitally prepared, and the size of the virtual contact surface was calculated. Finally, out of five prototypes the one fitting best in terms of size and alignment was identified. RESULTS CT scans taken from 319 subjects were used for the virtual implantation procedure. Body height and size of the distal tibia contact area correlated (r = 0.49 and 0.42 in females and males, each p < 0.001). Prosthesis sizes 2 and 3 fit well for the vast majority of patients, while the smallest and largest sizes are rarely required. CONCLUSIONS Digital implantation of the tibial component should be considered a valuable tool for preoperative planning as well as for the development of new implant types.
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Bernasconi A, Izzo A, Sgadari A, D'Agostino M, Mariconda M, Goldberg AJ. Median age of patients undergoing total ankle replacement has not significantly changed between 1999 and 2023: A systematic review of prospective studies. Foot Ankle Surg 2025; 31:3-9. [PMID: 39069398 DOI: 10.1016/j.fas.2024.07.007] [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: 03/27/2024] [Revised: 06/22/2024] [Accepted: 07/13/2024] [Indexed: 07/30/2024]
Abstract
INTRODUCTION Total ankle replacement (TAR) is an effective treatment for end-stage osteoarthritis. The aim of this systematic review was to assess the age of patients undergoing TAR in prospective comparative studies. Our hypothesis is that the age reported in most recent papers might be lower than those reported in older papers. METHODS This systematic review was performed using Pubmed, Scopus, EMBASE and Cochrane databases. Only Level I and II studies dealing with TAR were included. Data regarding demographics, study design, number of cohorts in each study, year of publication and year/years in which surgery was performed were extracted. A two-fold analysis was conducted building groups of patients based on the year of publication and creating 1) two groups (before and after the median year) and 2) three groups (using tertiles) in order to compare age of patients operated in different period of times. A comparison was also performed considering the median year of surgery for patients undergoing TAR. RESULTS Overall 59 cohorts (42 studies, published between 1999 and 2023; median year of publication: 2017) were included (6397 ankles, 6317 patients, median age 63 years). The difference between the median age for 27 cohorts published until 2016 (weighted median 63 years; IQR, 62.5-64) and the median age for 32 cohorts published after 2017 (weighted median 63.2 years; IQR, 63-67.8) was not statistically significant (p = 0.09). The division in tertiles did not reveal any significant change in the weighted median age at surgery (T1 (1999-2014; 63.2 years; IQR, 62.8-64.1), T2 (2015-2018; 63 years; IQR,63-63.5) and T3 (2019-2023; 63.2 years; IQR, 62.6-67.8)) over time (p = 0.65). The median age of patients operated between 1999 and 2008 vs 2009 and 2023 (data from 48 cohorts) was not different either (p = 0.12). CONCLUSION According to this review of prospective studies published between 1999 and 2023, the median age for patients undergoing TAR over the last two decades has been 63 years, remaining steady with no significant changes over time. LEVEL OF EVIDENCE Level II - systematic review including Level I and Level II studies.
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