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https://www.readbyqxmd.com/read/28812410/good-outcome-scores-and-high-satisfaction-rate-after-primary-total-ankle-replacement
#1
Ilka Kamrad, Åke Carlsson, Anders Henricson, Håkan Magnusson, Magnus K Karlsson, Björn E Rosengren
Background and purpose - Total ankle replacement (TAR) is gaining popularity for treatment of end-stage ankle arthritis. Large patient-centered outcome studies are, however, few. Here, we report data from the Swedish Ankle Registry. Patients and methods - We examined outcomes after primary TAR in patients from the Swedish Ankle Registry using PROMs (Patient Reported Outcome Measures; generic: EQ-5D and SF-36, region specific: SEFAS (Self-Reported Foot and Ankle Score), and a question on satisfaction). We included 241 patients registered with primary TAR between 2008 and 2016 and who completed PROMs preoperatively and postoperatively up to 24 months...
August 16, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28810805/hindfoot-arthritis-progression-and-arthrodesis-risk-after-total-ankle-replacement
#2
Travis J Dekker, David Walton, Emily N Vinson, Kamran S Hamid, Andrew E Federer, Mark E Easley, James K DeOrio, James A Nunley, Samuel B Adams
BACKGROUND: The purpose of this study was to assess the radiographic progression of subtalar and talonavicular degenerative joint disease in a series of patients who had undergone TAA (total ankle arthroplasty) with minimum follow-up of 5 years. METHODS: TAA patient radiographs from a single institution were analyzed for peritalar arthritic changes by extrapolating the modified Kellgren Lawrence (KL) grades of the knee to the subtalar and talonavicular joints. Patients were included if they had a minimum of 5 years of follow-up...
August 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28755611/fixed-and-mobile-bearing-total-ankle-prostheses-effect-on-tibial-bone-strain
#3
Alexandre Terrier, Caroline Sieger Fernandes, Maïka Guillemin, Xavier Crevoisier
BACKGROUND: Total ankle replacement is associated to a high revision rate. To improve implant survival, the potential advantage of prostheses with fixed bearing compared to mobile bearing is unclear. The objective of this study was to test the hypothesis that fixed and mobile bearing prostheses are associated with different biomechanical quantities typically associated to implant failure. METHODS: With a validated finite element model, we compared three cases: a prosthesis with a fixed bearing, a prosthesis with a mobile bearing in a centered position, and a prosthesis with mobile bearing in an eccentric position...
July 19, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28750551/midterm-results-of-the-salto-talaris-total-ankle-arthroplasty
#4
Matthew G Stewart, Cindy L Green, Samuel B Adams, James K DeOrio, Mark E Easley, James A Nunley
BACKGROUND: The Salto Talaris total ankle replacement is a modern fixed-bearing implant used to treat symptomatic ankle arthritis with the goals of providing pain relief, restoring mechanical alignment, and allowing motion of the ankle joint. The goal of this study was to report the midterm clinical results of one of the largest cohort of patients in the United States who underwent ankle replacement with this prosthesis. METHODS: This is a review of patients with a minimum of 5 years up to 10 years' follow-up...
July 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28744802/survival-of-the-scandinavian-total-ankle-replacement-star-results-of-ten-to-nineteen%C3%A2-years-follow-up
#5
Arno Frigg, Ursula Germann, Martin Huber, Monika Horisberger
PURPOSE: The purpose of this study was to evaluate survival and clinical outcome of the Scandinavian total ankle replacement (STAR) prosthesis after a minimum of ten years up to a maximum of 19 years. METHODS: Fifty STAR prostheses in 46 patients with end stage ankle osteoarthritis operated between 1996 and 2006 by the same surgeon (MH) were included. Minimal follow-up was ten years (median 14.6 years, 95% confidence interval [CI] 12.9-16.4). Clinical (Kofoed score) and radiological assessments were taken before the operation and at one, ten (+2), and 16 (±3) years after implantation...
July 26, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28675940/influence-of-geometry-and-depth-of-resections-on-bone-support-for-total-ankle-replacement
#6
Jeffrey E Bischoff, Lew Schon, Charles Saltzman
BACKGROUND: Aseptic component loosening is a leading cause of revision for total ankle replacement. Different operative approaches for resecting the tibia and talus impact the bony support for the prostheses due to variations in both bone density and resection area, and may therefore impact loosening performance. METHODS: Computed tomography data from 116 subjects were obtained, and solid models of the talus and tibia were generated. Bone density, resection area, and bony support were measured on a series of flat resections for each subject, at multiple resection depths...
July 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28671032/measuring-the-operative-treatment-effect-in-end-stage-ankle-arthritis-are-we-asking-the-right-questions-a-cofas-multicenter-study
#7
Kevin J Wing, Nuria Chapinal, Marcus P Coe, Timothy R Daniels, Mark Glazebrook, Peter Dryden, Alastair Younger, Murray J Penner, Jason M Sutherland
BACKGROUND: Foot and ankle surgeons are increasingly relying on patient-reported outcome measures (PROMs) such as the Ankle Osteoarthritis Scale (AOS) to evaluate treatment options. The objectives of this retrospective cohort study were 2-fold: (1) to examine the AOS instrument using psychometric analysis and (2) to revise the questions on the AOS to improve the effect of questions on the score and remove redundancies. METHODS: Pre- and postoperative patient scores were obtained from AOS questionnaires in the COFAS Prospective Ankle Reconstruction Database, a cohort of patients operatively treated for end-stage ankle arthritis...
June 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28645548/perioperative-complications-and-initial-alignment-of-lateral-approach-total-ankle-arthroplasty
#8
J George DeVries, Todd A Derksen, Brandon M Scharer, Robert Limoni
Total ankle replacement continues to become a more common treatment of end-stage ankle arthritis. A lateral approach total ankle implant system is an innovative approach for this treatment. We performed a retrospective review of 16 patients treated with lateral approach total ankle replacement. The implant was successful and retained in all cases during a follow-up period of 769 ± 221.3 days (25.3 ± 7.3 months). Initial satisfactory alignment was achieved in all cases. For patients in whom a frontal plane incongruent deformity was present preoperatively, a statistically significant correction was obtained (p = ...
June 20, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28633801/total-talar-prosthesis-replacement-after-talar-extrusion
#9
Sébastien Ruatti, Clémentine Corbet, Mehdi Boudissa, Gael Kerschbaumer, Michel Milaire, Philippe Merloz, Jérôme Tonetti
Dislocation of the talus is a serious and extremely rare injury, with 86 cases reported in the published data in 20 years. The reference standard for case management involves replacement of the dislocated talus to restore the height and function of the tibiotalar joint. The risk of avascular necrosis remains very high, and the standard treatment in such cases is tibiotalar arthrodesis. We report the case of total dislocation of the talus, which was treated with the insertion of a custom total talar prosthesis affixed directly to the tibial cartilage at 6 months after injury...
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28633788/fluoroscopic-and-gait-analyses-for-the-functional-performance-of%C3%A2-a%C3%A2-custom-made-total-talonavicular-replacement
#10
Claudio Belvedere, Matteo Cadossi, Antonio Mazzotti, Sandro Giannini, Alberto Leardini
The present study evaluated the restoration of joint function in a special clinical case: a professional rock climber who underwent an original total talonavicular replacement with a custom-made prosthesis after a complex articular fracture. Full body gait analysis and 3-dimensional joint kinematics using single-plane fluoroscopy were performed on the same day at the 30-month follow-up examination. Gait analysis was performed using stereophotogrammetric, dynamometric, electromyographic, and baropodometric systems...
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28630749/imaging-in-peri-prosthetic-assessment-an-orthopaedic-perspective
#11
Christoph H Lohmann, Sanjiv Rampal, Martin Lohrengel, Gurpal Singh
As imaging techniques are ever-evolving, this article aims to provide a brief overview of the various modalities including their limitations. The ability of imaging for evaluation of implant osseo-integration will be addressed and also the role of imaging in assessing septic and aseptic loosening, with a particular focus on adverse tissue reactions, will be discussed. Specific features when imaging the big joints such as shoulder, hip, knee and ankle joint will also be outlined.Overall, a lack of standardisation and validity was noted and despite the gross variety of imaging modalities, there is no technique covering all aspects required for evaluation of implant fixation and septic and aseptic loosening...
May 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28617095/association-of-ankle-arthritis-score-with-need-for-revision-surgery
#12
Stephen Croft, Kevin J Wing, Timothy R Daniels, Mark Glazebrook, Peter Dryden, Alastair Younger, Murray J Penner, Jason M Sutherland
BACKGROUND: The Ankle Arthritis Score (AAS) is a new patient-reported outcome derived from the Ankle Osteoarthritis Scale (AOS). This study analyzed longitudinally collected data from a cohort of patients in the Canadian Orthopaedic Foot and Ankle Society (COFAS) Ankle Arthritis Study in order to evaluate whether the postoperative AAS is associated with need for revision surgery. METHODS: A multicenter, prospective, ankle-reconstruction study enrolled 653 ankles undergoing total ankle replacement (TAR) or ankle arthrodesis (AA)...
June 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28587575/comparison-of-multisegmental-foot-and-ankle-motion-between-total-ankle-replacement-and-ankle-arthrodesis-in-adults
#13
Sang Gyo Seo, Eo Jin Kim, Doo Jae Lee, Kee Jeong Bae, Kyoung Min Lee, Dong Yeon Lee
BACKGROUND: Total ankle replacement (TAR) and ankle arthrodesis (AA) are usually performed for severe ankle arthritis. We compared postoperative foot segmental motion during gait in patients treated with TAR and AA. METHODS: Gait analysis was performed in 17 and 7 patients undergoing TAR and AA, respectively. Subjects were evaluated using a 3-dimensional multisegmental foot model with 15 markers. Temporal gait parameters were calculated. The maximum and minimum values and the differences in hallux, forefoot, hindfoot, and arch in 3 planes (sagittal, coronal, transverse) were compared between the 2 groups...
May 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28578802/spontaneous-resolution-of-posterior-ankle-joint-loose-bodies-after-total-ankle-replacement-a-case-report
#14
Raymond P Lee, Sally H S Cheng
Late stage ankle osteoarthritis often presents with debilitating pain. It is common to find osteophytes and loose body formation around the joint. Total ankle arthroplasty can preserve joint mobility and pain relieve for such patient. However, when trying to remove the osteophytes and loose bodies at the posterior ankle joint, there is risk of damaging posterior structures such as the neurovascular bundle during the procedure. We are presenting a case where the posterior loose bodies remained untouched during the operation, and patient showed spontaneous resolution of the lesions with time...
June 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28578801/sagittal-tibiotalar-translation-and-clinical-outcomes-in-mobile-and-fixed-bearing-total-ankle-replacement
#15
Federico G Usuelli, Luigi Manzi, Giovanni Brusaferri, Robert E Neher, Matteo Guelfi, Camilla Maccario
BACKGROUND: Sagittal implant malalignment after total ankle replacement (TAR) has been considered to be a possible cause for premature implant failure. In a prior study, the change over time of the tibiotalar ratio (T-T ratio), which is the ratio between the posterior longitudinal talar length and the full longitudinal talar length, was assessed in 66 TARs where an unconstrained, mobile-bearing implant was implanted. The analysis documented an increase in the T-T ratio between 2 and 6 months post-surgery (on average from 34...
June 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28578798/identifying-the-learning-curve-for-total-ankle-replacement-using-a-mobile-bearing-prosthesis
#16
Federico G Usuelli, Camilla Maccario, Andrea Pantalone, Nicola Serra, Eric W Tan
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...
June 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28578797/editorial-for-the-special-issue-total-ankle-replacement
#17
EDITORIAL
Michael M Stephens
No abstract text is available yet for this article.
June 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28578795/heterotopic-ossification-after-total-ankle-replacement-the-role-of-prosthesis-alignment
#18
Sebastian Manegold, Alexander Springer, Kristin Landvoigt, Serafim Tsitsilonis
BACKGROUND: The aetiology of heterotopic ossifications (HO) after total ankle arthroplasty (TAR) remains controversial. The aim of the study was to evaluate the prevalence and localisation of HO and the effect of alignment. METHODS: 88 TARs with a series of radiological controls and follow-up of 36 months were evaluated. Frontal and sagittal alignment parameters (alfa and beta angle defined by Hintermann) and tibial coverage were evaluated. RESULTS: The prevalence and grading of HO increased over time, mostly in the posterior gutter...
June 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28578794/results-at-a-minimum-follow-up-of-5-years-of-a-ligaments-compatible-total-ankle-replacement-design
#19
Sandro Giannini, Matteo Romagnoli, Paolo Barbadoro, Giulio Maria Marcheggiani Muccioli, Matteo Cadossi, Alberto Grassi, Stefano Zaffagnini
BACKGROUND: A new design of 3-part ankle replacement was developed to achieve compatibility with the natural ligaments by allowing certain fibers to remain isometric during passive motion. METHODS: We evaluate 75 ankle prostheses implanted from July 2003 to December 2008, at a mean follow-up 6.5±1.1years (range 5-9 years). The mean age at surgery was 62±13years (range 29-82). RESULTS: The mean AOFAS scores achieved at pre-op and at last follow-up were respectively 37±5 (23-45) and 78±8 (64-98)...
June 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28578793/medium-to-long-term-results-of-130-ankle-evolutive-system-total-ankle-replacements-inferior-survival-due-to-peri-implant-osteolysis
#20
Helka Koivu, Ia Kohonen, Kimmo Mattila, Eliisa Loyttyniemi, Hannu Tiusanen
BACKGROUND: The study reports the medium to long-term results of 130 Ankle Evolutive System total ankle replacements operated at a single-centre. Previously high amount of peri-implant osteolysis was reported from the same material. METHODS: Between 2002 and 2008 one hundred and thirty consecutive ankles replaced with AES ankle prosthesis were followed both radiologically and clinically. RESULTS: The five-year survival was 87.3% (95% confidence interval (CI) 80...
June 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
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