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Total ankle arthroplasty

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https://www.readbyqxmd.com/read/29389250/scandinavian-total-ankle-replacement-15-year-follow-up
#1
Ariel Palanca, Roger A Mann, Jeffrey A Mann, Andrew Haskell
BACKGROUND: Over the past decade, total ankle arthroplasty (TAA) has become a mainstay in the treatment of end-stage ankle arthritis. Currently in its fourth generation, the Scandanavian Total Ankle Replacement (STAR) is the only 3-piece mobile bearing ankle prosthesis available in the United States. Our current study reports implant survivorship at 15 years and patient outcomes for a subset of these survivors available for study. METHODS: Eighty-four TAAs were performed between 1998 and 2000...
February 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29385865/three-dimensional-limb-lengthening-after-total-knee-arthroplasty-in-a-simulation-study
#2
Takaaki Ohmori, Tamon Kabata, Yoshitomo Kajino, Daisuke Inoue, Tadashi Taga, Takashi Yamamoto, Tomoharu Takagi, Junya Yoshitani, Takuro Ueno, Ken Ueoka, Hiroyuki Tsuchiya
OBJECTIVES: Limb lengthening after total knee arthroplasty (TKA) has been reported in some cases, all of which were evaluated using 2-dimensional images. To our knowledge, no case has been evaluated using 3-dimensional (3D) images. We investigated 3D limb lengthening after TKA. METHODS: We simulated 100 varus knees using 3D templating software. Virtual TKA was performed to maintain the original joint line by conducting a measured-resection technique. We examined the relationships of 3D distance between the femoral head center and ankle center before and after TKA, degree of hip-knee-ankle angle (HKA) improvement, and degree of flexion contracture angle improvement...
February 1, 2018: Modern Rheumatology
https://www.readbyqxmd.com/read/29366661/long-term-results-of-hemiarthroplasty-compared-with-arthrodesis-for-osteoarthritis-of-the-first-metatarsophalangeal-joint
#3
Stefan R Beekhuizen, Timothy Voskuijl, Ron Onstenk
If operative treatment is opted for grade 3 and 4 osteoarthritis of the first metatarsophalangeal joint, arthrodesis is considered the standard of care. However, if preservation of joint mobility is preferred, implant arthroplasty could be favored. Previous studies have suggested hemiarthroplasty might result in less pain, better function, and greater patient satisfaction compared with arthrodesis. However, these studies only evaluated short-term results (range 2.2 to 6.6 years). The aim of our study was to determine whether patients treated with hemiarthroplasty would show better postoperative outcomes compared with those treated with arthrodesis after ≥5 years after surgery...
January 20, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29352685/factors-associated-with-posterior-cruciate-ligament-tightness-during-cruciate-retaining-total-knee-arthroplasty
#4
Kazuhisa Hatayama, Masanori Terauchi, Shogo Hashimoto, Kenichi Saito, Hiroshi Higuchi
BACKGROUND: The purpose of our study was to identify factors affecting posterior cruciate ligament (PCL) tightness during cruciate-retaining total knee arthroplasty. METHODS: A total of 225 varus osteoarthritic knees that underwent cruciate-retaining total knee arthroplasty were included in this study. When the flexion gap was tighter than the extension gap after all bone resection and the lift-off sign was positive during surgery, the PCL was released. The association between PCL release and potential risk factors, such as age, gender, body mass index, preoperative range of motion, anterior cruciate ligament status, preoperative hip-knee-ankle angle (HKA), decrease in posterior condylar offset, and also change in tibial posterior slope angle (TPSA) from preoperative to postoperative measurement, was evaluated by univariate and multivariate logistic regression analyses...
December 28, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29349665/following-the-correction-of-varus-deformity-of-the-knee-through-total-knee-arthroplasty-significant-compensatory-changes-occur-not-only-at-the-ankle-and-subtalar-joint-but-also-at-the-foot
#5
Bi O Jeong, Tae Yong Kim, Jong Hun Baek, Hyuk Jung, Seung Hyun Song
PURPOSE: This study aimed to assess radiological changes of the ankle joint, subtalar joint and foot following the correction of varus deformity of the knee with total knee arthroplasty (TKA). It was hypothesized that following the correction of varus deformity by TKA, compensatory reactions would occur at the subtalar joint in accordance with the extent of the correction. METHODS: For this prospective study, 375 knees of patients who underwent TKA between 2011 and 2012 were enrolled...
January 18, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29325423/early-functional-radiological-outcomes-and-satisfaction-rates-of-total-ankle-arthroplasty-in-an-asian-population
#6
Shi Ming Tan, Hamid Rahmatullah Bin Abdul Razak, Inderjeet Singh Rikhraj
BACKGROUND: Few studies have outlined the outcomes and complications in Asians undergoing total ankle arthroplasty. This study reports the functional, radiological outcomes and satisfaction rates in our Asian population. METHODS: Patients who underwent primary total ankle arthroplasty from 2007 to 2013 were recruited. Outcomes evaluated were the AOFAS Ankle-Hindfoot Score (AHS), Visual Analogue Scale(VAS), and the Short Form 36 (SF-36)questionnaire. Outcome scores were collected prospectively up to 2 years...
January 1, 2018: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/29322320/is-there-a-relationship-between-the-load-distribution-on-the-tibial-plateau-and-hip-knee-ankle-angle-after-tka
#7
Takao Kaneko, Norihiko Kono, Yuta Mochizuki, Hiroyasu Ikegami, Yoshiro Musha
INTRODUCTION: This study asked whether differences in coronal alignment after total knee arthroplasty (TKA) affect the load distribution on the tibial plateau. The aim of this study was to investigate the correlation between coronal alignment and the load distribution on the tibial plateau after TKA, using three-dimensional multi-detector-row-computed tomography (3D-MDCT). MATERIALS AND METHODS: In this study, we performed 84 cementless TKA with porous tantalum modular tibial component (PTMT) and divided into three groups based on post-operative hip-knee-ankle (HKA) angle: varus alignment group (n = 22), (176° ≧) neutral alignment group (n = 45), (180° ± 3°), and valgus alignment group (n = 17) (184° ≦)...
January 10, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29316589/a-comparison-of-relative-value-units-in-primary-versus-revision-total-ankle-arthroplasty
#8
Nipun Sodhi, Benjamin Yao, Jared M Newman, Michael Jawad, Anton Khlopas, Assem A Sultan, Suela Lamaj, George A Beyer, Alyeesha B Wilhelm, Michael A Mont
INTRODUCTION: To determine the effort required to provide a service, the United States Medicare uses Relative Value Units (RVUs). Consequently, higher RVUs are assigned to the procedures or services that require more effort, which ultimately means the physician will be properly compensated for the additional effort required. In total ankle arthroplasty (TAA), revision cases usually are more technically challenging and require more effort than primary TAA. Therefore, the purpose of this study was to compare the: 1) RVUs; 2) length-of-surgery; 3) RVU per unit of time between primary and revision total ankle arthroplasty; and 4) the individualized idealized surgeon annual cost difference analysis...
December 22, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29310920/total-hip-arthroplasty-patients-with-fixed-spinopelvic-alignment-are-at-higher-risk-of-hip-dislocation
#9
Christina I Esposito, Kaitlin M Carroll, Peter K Sculco, Douglas E Padgett, Seth A Jerabek, David J Mayman
BACKGROUND: Sitting radiographs have been used as a pre-operative tool to plan patient-specific total hip arthroplasty (THA) component position that would improve hip stability. Previous work has demonstrated that spinal mobility may impact functional acetabular position when seated. We sought to determine whether patients who dislocate following THA have different sitting spinopelvic alignment or acetabular component orientation compared to patients who did not dislocate. METHODS: A consecutive series of 1000 patients underwent post-operative low-dose biplanar spine-to-ankle lateral radiographs in standing and sitting positions 1 year following THA...
December 13, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29284576/effect-of-obesity-on-total-ankle-arthroplasty-a-systematic-review-of-postoperative-complications-requiring-surgical-revision
#10
REVIEW
Laura E Sansosti, Jennifer C Van, Andrew J Meyr
Total ankle arthroplasty has become an increasingly used alternative to ankle arthrodesis for the treatment of end-stage ankle arthritis. However, despite progressive technological advances and the advent of multiple commercial implant systems, some concern remains for the relatively high complication and failure rates. The objective of the present investigation was to perform a systematic review of the incidence of complications in obese patients undergoing total ankle arthroplasty. We performed a review of electronic databases with the inclusion criteria of retrospective case series, retrospective clinical cohort analyses, and prospective clinical trials with ≥15 total participants, a mean follow-up period of ≥12 months, ≥1 defined cohort with a body mass index of ≥30 kg/m2, and a reported incidence rate of complications requiring revisional surgery at the final follow-up point...
December 25, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29249326/patient-related-risk-factors-for-periprosthetic-ankle-joint-infection-an-analysis-of-6977-total-ankle-arthroplasties
#11
Alyssa Althoff, Jourdan M Cancienne, Minton T Cooper, Brian C Werner
Periprosthetic joint infection (PJI) after total ankle arthroplasty (TAA) is a devastating complication that often results in explantation to resolve the infection. The purpose of the present investigation was to determine the patient-related risk factors for PJI after TAA. A national insurance database was queried for patients undergoing TAA using the Current Procedural Terminology and International Classification of Diseases, ninth revision, procedure codes from 2005 to 2012. Patients undergoing TAA with concomitant fusion procedures or more complex forefoot procedures were excluded...
December 15, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29218618/metal-artifact-reduction-mri-of-total-ankle-arthroplasty-implants
#12
Cesar de Cesar Netto, Lucas F Fonseca, Benjamin Fritz, Steven E Stern, Esther Raithel, Mathias Nittka, Lew C Schon, Jan Fritz
OBJECTIVES: To assess high-bandwidth and compressed sensing-(CS)-SEMAC turbo spin echo (TSE) techniques for metal artifact reduction MRI of total ankle arthroplasty (TAA) implants. METHODS: Following institutional approval and consent, 40 subjects with TAA implants underwent 1.5-T MRI prospectively. Evaluations included bone-implant interfaces, anatomical structures, abnormal findings and differential diagnoses before and after MRI. AUCs of P-P plots were used to determine superiority...
December 7, 2017: European Radiology
https://www.readbyqxmd.com/read/29204502/preoperative-radiographic-valgus-alignment-predicts-the-extent-of-lateral-soft-tissue-release-and-need-for-constraint-in-valgus-total-knee-arthroplasty
#13
Oren Goltzer, Tommy P Mroz, M'hamed Temkit, Henry D Clarke, Mark J Spangehl
Background: In total knee arthroplasty (TKA) for valgus knees, the decision to use a constrained implant is often made intraoperatively depending on the extent of soft tissue releases performed and residual soft tissue imbalance. The purpose of this study is to determine if preoperative radiographic criteria of valgus knees can predict the extent of soft tissue releases required and the level of constraint needed to balance the knee during TKA. Methods: A single surgeon's 807 consecutive TKA standing hip-knee-ankle radiographs from 2007-2012 were analyzed...
December 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/29196384/trends-in-joint-replacement-surgery-in-patients-with-rheumatoid-arthritis
#14
Bradley L Young, Shawna L Watson, Jorge L Perez, Gerald McGwin, Jasvinder A Singh, Brent A Ponce
OBJECTIVE: This study analyzed trends in large total joint arthroplasties (TJA) and in the proportion of these procedures performed on patients with rheumatoid arthritis (RA). METHODS: The US Nationwide Inpatient Sample (2002-2012) was used to identify the incidences of total shoulder (TSA), elbow (TEA), knee (TKA), hip (THA), and ankle (TAA) arthroplasty and the proportion of these performed with coexisting RA. RESULTS: The prevalence of RA among patients with TJA increased 3...
December 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/29186357/outcome-of-ankle-arthrodesis-and-ankle-prosthesis-a-review-of-the-current-status
#15
Nicola Maffulli, Umile Giuseppe Longo, Joel Locher, Giovanni Romeo, Giuseppe Salvatore, Vincenzo Denaro
Introduction: In advanced stages of ankle osteoarthritis (OA), ankle arthrodesis (AA) or total ankle arthroplasty (TAR) may be necessary. Our purpose is to compare AA and total ankle replacement for the surgical management of end stage ankle OA. Sources of data: We conducted a literature search of PubMed, Medline, CINAHL, Cochrane, Embase and Google Scholar databases using the terms 'ankle' in combination with 'OA', 'arthrodesis', 'arthroplasty', 'joint fusion', 'joint replacement'...
November 23, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/29181560/stability-and-alignment-do-not-improve-by-using-patient-specific-instrumentation-in-total-knee-arthroplasty-a-randomized-controlled-trial
#16
Nienke M Kosse, Petra J C Heesterbeek, Janneke J P Schimmel, Gijs G van Hellemondt, Ate B Wymenga, Koen C Defoort
PURPOSE: The primary aim of the study was to examine stability and alignment after total knee arthroplasty (TKA) using patient-specific instrumentation (PSI) and conventional instrumentation (CI). The hypothesis was that stability and alignment would be better using PSI than CI, 12 months postoperatively. The secondary aim included the evaluation of clinical outcomes after TKA. METHODS: In this prospective randomized controlled trial, 42 patients with knee osteoarthritis received a Genesis II PS prosthesis with either PSI or CI...
November 28, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29178861/contact-stresses-pressure-and-area-in-a-fixed-bearing-total-ankle-replacement-a-finite-element-analysis
#17
Nicolo Martinelli, Silvia Baretta, Jenny Pagano, Alberto Bianchi, Tomaso Villa, Gloria Casaroli, Fabio Galbusera
BACKGROUND: Mobile-bearing ankle implants with good clinical results continued to increase the popularity of total ankle arthroplasty to address endstage ankle osteoarthritis preserving joint movement. Alternative solutions used fixed-bearing designs, which increase stability and reduce the risk of bearing dislocation, but with a theoretical increase of contact stresses leading to a higher polyethylene wear. The purpose of this study was to investigate the contact stresses, pressure and area in the polyethylene component of a new total ankle replacement with a fixed-bearing design, using 3D finite element analysis...
November 25, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29165342/knee-and-ankle-arthroplasty-in-hemophilia
#18
REVIEW
Luigi Piero Solimeno, Gianluigi Pasta
Today, major surgical procedures can be safely performed in hemophilic patients with chronic arthropathy, using available factor concentrates. In this setting, total knee replacement is considered the "gold standard", while the use of total ankle replacement is still debated. Indeed, the unsatisfactory results obtained with the previous available design of implants did not raise enthusiasm as knee or hip replacement. Recently, the introduction of new implant designs and better reported outcomes have renewed the interest in total ankle replacement in people with hemophilia...
November 22, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29160727/a-review-of-perioperative-complications-of-outpatient-total-ankle-arthroplasty
#19
Todd R Borenstein, Kapil Anand, Quanlin Li, Timothy P Charlton, David B Thordarson
BACKGROUND: Total ankle arthroplasty (TAA) is commonly pursued for patients with painful arthritis. Outpatient TAA are increasingly common and have been shown to decrease costs compared to inpatient surgery. However, there are very few studies examining the safety of outpatient TAA. In this study, we retrospectively reviewed 65 consecutive patients who received outpatient TAA to identify complication rates. METHODS: The medical records of 65 consecutive outpatient TAA from October 2012 to May 2016 with a minimum 6-month follow-up were reviewed...
November 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/29156169/next-generation-minimal-resection-fixed-bearing-total-ankle-replacement-indications-and-outcomes
#20
REVIEW
Justin Tsai, David I Pedowitz
Total ankle arthroplasty is an increasingly popular procedure to address tibiotalar joint arthritis. Implant design and the rationale behind it have changed throughout the years. Newer generation implants allow for minimal resection of bone and use fixed-bearing technology. Long-term follow-up multicenter studies will determine the lifetime of these devices and their effectiveness in addressing pain and improving function for patients with endstage tibiotalar arthritis.
January 2018: Clinics in Podiatric Medicine and Surgery
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