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Total ankle replacement

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https://www.readbyqxmd.com/read/28216304/ankle-arthrodesis-a-retrospective-analysis-comparing-single-column-locked-anterior-plating-to-crossed-lag-screw-technique
#1
Mark A Prissel, G Alex Simpson, Sean A Sutphen, Christopher F Hyer, Gregory C Berlet
Ankle arthrodesis is performed to eliminate pain due to end-stage osteoarthritis, regardless of etiology. This procedure remains the reference standard treatment for end-stage ankle arthritis, despite recent advancements in total ankle replacement. The objective of the present study was to retrospectively evaluate the radiographic and clinical fusion rates and time to bony fusion for patients who underwent ankle arthrodesis using an anterior approach with a single column locked plate construct versus crossed lag screws...
February 16, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28196041/change-in-talar-translation-in-the-coronal-plane-after-mobile-bearing-total-ankle-replacement-and-its-association-with-lower-limb-and-hindfoot-alignment
#2
Young Yi, Jae-Ho Cho, Ji-Beom Kim, Jae-Young Kim, Su-Yeon Park, Woo Chun Lee
BACKGROUND: Mobile-bearing total ankle replacement (TAR) enables motion at the tibial implant-polyethylene insert interface. This motion could lead to coronal translation of the talus relative to the tibia and may affect radiographic outcome. We aimed to assess the translation of the talus before and after mobile-bearing TAR to determine whether translation of the talus after TAR is associated with coronal plane alignment of the lower limb and hindfoot as well as to investigate the complications associated with talar translation...
February 15, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28196036/a-prospective-study-of-four-total-ankle-arthroplasty-implants-by-non-designer-investigators
#3
Tina Lefrancois, Alastair Younger, Kevin Wing, Murray J Penner, Peter Dryden, Hubert Wong, Timothy Daniels, Mark Glazebrook
BACKGROUND: There are several types of prostheses available to surgeons when performing a total ankle arthroplasty (TAA). The main objective of this study was to summarize the clinical and functional outcomes of 4 TAA prostheses: the Hintegra implant (Integra LifeSciences), the Agility implant (DePuy), the Mobility implant (DePuy), and the Scandinavian Total Ankle Replacement (STAR) implant (Small Bone Innovations [SBi]). METHODS: Patients were prospectively recruited...
February 15, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28169136/in-vitro-wear-of-ultrahigh-molecular-weight-polyethylene-and-vitamin-e-blended-highly-cross-linked-polyethylene-in-linked-semiconstrained-total-elbow-replacement-prostheses
#4
Oludele O Popoola, Brian L Kincaid, Kimberly Mimnaugh, Mark Marqueling
BACKGROUND: The objectives of this study were to develop a clinically relevant in vitro elbow wear test and to compare the polyethylene wear of 2 total elbow replacement prostheses, one that uses conventional gamma-irradiated polyethylene (CPE) and one that uses vitamin E blended and cross-linked polyethylene (VE-HXPE) bushings. MATERIALS AND METHODS: The test protocol applied 0° to 85° flexion-extension motions and imposed a constant 4.5° varus malalignment of the ulnar relative to the humeral implant under a variable joint load profile at a frequency of 1 Hz...
February 3, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28144149/can-achilles-tendon-be-used-as-a-new-distal-landmark-for-coronal-tibial-component-alignment-in-total-knee-replacement-surgery-an-observational-mri-study
#5
Uğur Tiftikçi, Sancar Serbest, Veysel Burulday
BACKGROUND: In total knee arthroplasty, it is better to use more than one reference point for correct alignment of the components. By measuring the distances of Achilles tendon (AT) and other conventional landmarks from the mechanical axis in magnetic resonance imaging (MRI) of the ankle, we aimed to demonstrate that, as a novel landmark which can help for correct alignment in the coronal plane, AT is a better option than other landmarks. MATERIALS AND METHODS: This retrospective study was done on 53 ankle MRIs that met the criteria for inclusion to the study among 158 ankle MRIs...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28139190/patient-specific-instrumentation-for-total-knee-arthroplasty
#6
Arash Nabavi, Caroline M Olwill, Mike Do, Tanya Wanasawage, Ian A Harris
PURPOSE: To assess the accuracy of total knee replacements (TKRs) performed using CT-based patient-specific instrumentation by postoperative CT scan. METHOD: Approval from the Ethics Committee was granted prior to commencement of this study. Fifty prospective and consecutive patients who had undergone TKR (Evolis, Medacta International) using CT-based patient-specific instrumentation (MY KNEE, Medacta International) were assessed postoperatively using a CT scan and the validated Perth protocol measurement technique...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28129322/perioperative-physiotherapy-for-total-ankle-replacement-in-patients-with-inherited-bleeding-disorders-outline-of-an-algorithm
#7
Andrzej Kotela, Magdalena Wilk-Frańczuk, Joanna Jaczewska, Piotr Żbikowski, Paweł Łęgosz, Paweł Ambroziak, Ireneusz Kotela
The treatment of end-stage hemophilic arthropathy of the ankle joint remains a controversial problem, and total ankle replacement (TAR) is considered to be a valuable management option. Physiotherapy continues to be an extremely important part of TAR and has a tremendous impact on the outcomes of this procedure. Given the lack of data on the latter, this study details a protocol of perioperative physiotherapy in TAR in patients with inherited bleeding disorders (IBD). The protocol outlined in this paper was devised via consultations within an interdisciplinary group, the authors' own experiences with TAR in hemophilic and non-hemophilic patients, previous reports on this issue in the literature, and patient opinions...
January 27, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28108017/influence-of-kinematics-on-the-wear-of-a-total-ankle-replacement
#8
Alexandra Smyth, John Fisher, Silvia Suñer, Claire Brockett
Total ankle replacement (TAR) is an alternative to fusion, replacing the degenerated joint with a mechanical motion-preserving alternative. Minimal pre-clinical testing has been reported to date and existing wear testing standards lack definition. Ankle gait is complex, therefore the aim of this study was to investigate the effect on wear of a range of different ankle gait kinematic inputs. Five Zenith (Corin Group) TARs were tested in a modified knee simulator for twelve million cycles (Mc). Different combinations of IR rotation and AP displacement were applied every 2Mc to understand the effects of the individual kinematics...
January 8, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28099303/quality-of-life-in-bilateral-vs-unilateral-end-stage-ankle-arthritis-and-outcomes-of-bilateral-vs-unilateral-total-ankle-replacement
#9
Sagar J Desai, Mark Glazebrook, Murray J Penner, Kevin J Wing, Alastair S E Younger, Ellie Pinsker, Timothy R Daniels
BACKGROUND: We performed a retrospective cohort study to compare preoperative health-related quality of life (HRQoL) between patients with bilateral and those with unilateral end-stage ankle arthritis. We also compared midterm outcomes in a subgroup of patients who had undergone staged bilateral total ankle replacement (TAR) with the outcomes in the group treated with unilateral TAR. METHODS: The HRQoL before surgical treatment was compared between 53 patients with bilateral end-stage ankle arthritis identified from the Canadian Orthopaedic Foot and Ankle Society Prospective Ankle Reconstruction Database and 106 patients with unilateral arthritis selected from the same database...
January 18, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28061741/economic-analysis-and-patient-satisfaction-associated-with-outpatient-total-ankle-arthroplasty
#10
Tyler Gonzalez, Erica Fisk, Christopher Chiodo, Jeremy Smith, Eric Bluman
BACKGROUND: Total ankle arthroplasty (TAA) is a rapidly growing treatment for end-stage ankle arthritis that is generally performed as an inpatient procedure. The feasibility of outpatient total ankle arthroplasty (OTAA) has not been reported in the literature. We sought to establish proof of concept for OTAA by comparing outpatient vs inpatient perioperative complications, postoperative emergency department (ED) visits, readmissions, patient satisfaction, and cost analysis. METHODS: From July 2010 to September 2015, a total of 36 patients underwent TAA...
December 1, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/28008240/a-comparison-between-metatarsal-head-resurfacing-hemiarthroplasty-and-total-metatarsophalangeal-joint-arthroplasty-as-surgical-treatments-for-hallux-rigidus-a-retrospective-study-with-short-to-midterm-follow-up
#11
Musa Ugur Mermerkaya, Houman Adli
PURPOSE: We evaluated the short- to midterm outcomes of metatarsal head-resurfacing hemiarthroplasty and total metatarsophalangeal joint arthroplasty (total joint replacement [TJR]) as surgical treatments for advanced-stage hallux rigidus (HR). PATIENTS AND METHODS: From 2012 to 2014, all data from patients who underwent surgery for the treatment of grades 2-3 HR were retrospectively reviewed, and 45 patients were included in this study. Of these patients, 26 underwent metatarsal head-resurfacing hemiarthroplasty (Group I) and 19 underwent TJR (Group II)...
2016: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/27995304/patient-specific-instrumentation-versus-conventional-knee-arthroplasty-comparative-study
#12
Vlad Predescu, Catalin Prescura, Razvan Olaru, Liliana Savin, Paul Botez, Bogdan Deleanu
BACKGROUND: The key to a successful knee replacement is restoring normal kinematics with a neutral alignment, thus a hip-knee-ankle (HKA) angle of 180° (within 3° limits). Conventional TKR is proven to have excellent results but relies in extensive visual referencing of bony landmarks. Customised cutting blocks provide accurate bone cuts, also lowering the risk of fat embolism, blood loss and operating time. METHOD: We share our experience comparing two different TKA techniques using patient specific instrumentation (PSI) with the Visionaire knee and conventional instrumentation (CVI) from the same system (Genesis II Smith&Nephew)...
December 19, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27989336/a-review-of-399-total-ankle-replacements-analysis-of-ipsilateral-subtalar-joint-arthrodesis-and-associated-talar-component-subsidence
#13
Mark A Prissel, Christopher F Hyer, Gregory C Berlet
Total ankle replacement (TAR) is an accepted treatment for end-stage ankle arthritis. When concurrent subtalar joint pathologic features exist, ipsilateral subtalar joint arthrodesis (STJA) can be performed either simultaneous with TAR or as a staged procedure. Limited data exist on the effect of talar component subsidence and prosthesis survivorship. The present study purpose was to evaluate the effect of STJA on talar component subsidence after primary TAR and its effect on TAR survivorship. All patients, a minimum of 18 years old, from a single institution with modern-generation TAR and 1-year minimum follow-up data available were evaluated...
January 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27866037/preoperative-preparation-of-a-patient-with-grade-ii-leg-lymphedema-for-his-third-hip-replacement-surgery
#14
Maria de Fátima Guerreiro Godoy, Livia Maria Pereira de Godoy, Renata Lopes Pinto, Jose Maria Pereira de Godoy
INTRODUCTION: The treatment of lymphedema remains a challenge to modern medicine, due to the characteristics of the disease. CASE PRESENTATION: Report on the case of a 75-year-old patient with lower limb lymphedema for treatment prior to surgery. At age 45, he made the first hip replacement surgery in the left leg. One year later he performed the same surgery on the right leg. At that time his legs had slight ankle edema mainly of the left leg and the entire left leg was affected by lymphedema...
2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27855774/total-ankle-replacement-through-a-lateral-approach-surgical-tips
#15
Federico Giuseppe Usuelli, Cristian Indino, Camilla Maccario, Luigi Manzi, Vincenzo Salini
PURPOSE: Recently, the Zimmer Trabecular Metal Total Ankle Replacement (Zimmer TM TAR) was developed to be used through a lateral transfibular approach. The purpose of this paper is to describe the surgical technique and early outcomes of the TAR via the lateral approach using the Zimmer TM TARs. METHODS: Sixty-seven patients underwent primary TAR using the Zimmer TM TAR between May 2013 and May 2015. Patients were clinically evaluated preoperatively and postoperatively at six and twelve months and annually using the American Orthopaedic Foot & Ankle Society (AOFAS) ankle and hindfoot scores, visual analogue scale (VAS) pain score, and the Short Form Health Survey (SF-12) questionnaire...
2016: SICOT-J
https://www.readbyqxmd.com/read/27765869/mid-to-long-term-results-of-supramalleolar-osteotomy
#16
Nicola Krähenbühl, Lukas Zwicky, Lilianna Bolliger, Sabine Schädelin, Beat Hintermann, Markus Knupp
BACKGROUND: Good clinical and radiographic short-term results have been reported for patients who underwent realignment surgery of the hindfoot for treatment of early- and mid-stage ankle osteoarthrosis (OA). However, no mid- to long-term results have been reported. The aim of this study was to gain a better insight into the indications and contraindications for realignment surgery. METHODS: Two hundred ninety-four patients (298 ankles) underwent realignment surgery between December 1999 and June 2013...
February 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/27756868/effect-of-insurance-on-rates-of-total-ankle-arthroplasty-versus-arthrodesis-for-tibiotalar-osteoarthritis
#17
Nathanael Heckmann, Alexander Bradley, Lakshmanan Sivasundaram, Ram Kiran Alluri, Eric W Tan
BACKGROUND: Several studies have examined the effect of insurance on the management of various orthopedic conditions. The purpose of our study was to assess the effect of insurance and other demographic factors on the operative management of tibiotalar osteoarthritis. METHODS: The National Inpatient Sample (NIS) database was used to identify patients who underwent a total ankle arthroplasty (TAA) or tibiotalar arthrodesis (TTA) for tibiotalar osteoarthritis. Insurance status was identified for each patient, and the proportions of each insurance type were computed for each operative modality...
February 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/27649973/determining-the-cost-savings-threshold-and-alignment-accuracy-of-patient-specific-instrumentation-in-total-ankle-replacements
#18
Kamran S Hamid, Andrew P Matson, Benedict U Nwachukwu, Daniel J Scott, Richard C Mather, James K DeOrio
BACKGROUND: Traditional intraoperative referencing for total ankle replacements (TARs) involves multiple steps and fluoroscopic guidance to determine mechanical alignment. Recent adoption of patient-specific instrumentation (PSI) allows for referencing to be determined preoperatively, resulting in less steps and potentially decreased operative time. We hypothesized that usage of PSI would result in decreased operating room time that would offset the additional cost of PSI compared with standard referencing (SR)...
January 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/27649408/is-routine-use-of-vted-chemical-prophylaxis-ever-warranted-in-foot-and-ankle-surgery-results-of-a-cost-effectiveness-analysis
#19
Shirley Chen, Adam Fleischer, Craig Wirt, Richmond Robinson, Carolina Barbosa, Arezou Amidi, Robert Joseph
INTRODUCTION AND OBJECTIVES: The purpose of this study was to determine whether some foot/ankle surgeries would benefit from routine use of low molecular weight heparin (LMWH) as postoperative DVT prophylaxis. METHODS: We conducted a formal cost-effectiveness analysis using a decision analytic tree to represent the risk of complications under a scenario of no prophylaxis and a scenario of routine LMWH prophylaxis for 4 weeks. The two scenarios were compared for five procedures: 1) Achilles tendon repair (ATR), 2) total ankle replacement (TAR), 3) hallux valgus surgery (HVS), 4) hindfoot arthrodesis (HA), and 5) ankle fracture surgery (AFS)...
September 2016: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/27605689/trends-in-complication-rates-following-ankle-arthrodesis-and-total-ankle-replacement
#20
Alexandra I Stavrakis, Nelson F SooHoo
BACKGROUND: This study provides an updated comparison of the reoperation rates following primary ankle arthrodesis and total ankle replacement on the basis of observational, population-based data from California. We previously reported data from 1995 to 2004, and our current study includes new data from 2005 to 2010. Our hypothesis was that total ankle replacement would demonstrate increasing utilization and lower complication rates given advances in implant design and growth in surgeon experience...
September 7, 2016: Journal of Bone and Joint Surgery. American Volume
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