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Total ankle arthroplasty

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https://www.readbyqxmd.com/read/27909123/comparative-study-of-computer-assisted-total-knee-arthroplasty-after-opening-wedge-osteotomy-versus-after-unicompartmental-arthroplasty
#1
R Pailhé, J Cognault, J Massfelder, A Sharma, R-C Rouchy, B Rubens-Duval, D Saragaglia
AIMS: The role of high tibial osteotomy (HTO) is being questioned by the use of unicompartmental knee arthroplasty (UKA) in the treatment of medial compartment femorotibial osteoarthritis. Our aim was to compare the outcomes of revision HTO or UKA to a total knee arthroplasty (TKA) using computer-assisted surgery in matched groups of patients. PATIENTS AND METHODS: We conducted a retrospective study to compare the clinical and radiological outcome of patients who underwent revision of a HTO to a TKA (group 1) with those who underwent revision of a medial UKA to a TKA (group 2)...
December 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27896394/the-orientation-of-the-surgical-epicondylar-axis-varies-in-varus-and-non-varus-knees-in-the-coronal-plane
#2
Yunjie Zhang, Xiaofeng Wang, Yunchao Shao, Qing Xia
PURPOSE: To investigate the orientations of the surgical epicondylar axis (SEA) of varus and non-varus knees in the coronal plane. METHODS: One-hundred and sixty-two knees from 81 Chinese patients undergoing total knee arthroplasty (TKA) were retrospectively investigated. The angle between the medial side of the femoral mechanical axis and the SEA (MA-SEA), as well as the physiological valgus angle, was measured in the coronal plane using three-dimensional reconstruction...
November 28, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27889092/current-quality-measurement-tools-are-insufficient-to-assess-complications-in-orthopedic-surgery
#3
Arjun S Sebastian, Stephanie F Polites, Amy E Glasgow, Elizabeth B Habermann, Robert R Cima, Sanjeev Kakar
PURPOSE: The American College of Surgeons National Surgical Quality Improvement Project (ACS-NSQIP) is a clinically-derived, validated tool to track outcomes in surgery. The Agency for Healthcare Research and Quality Patient Safety Indicators (AHRQ-PSI) are a set of computer algorithms run on administrative data to identify adverse events. The purpose of this study is to compare complications following orthopedic surgery identified by ACS-NSQIP and AHRQ-PSI. METHODS: Patients between 2010 and 2012 who underwent orthopedic procedures (arthroplasty, spine, trauma, foot and ankle, hand, and upper extremity) at our tertiary-care, academic institution were identified (n = 3,374)...
November 23, 2016: Journal of Hand Surgery
https://www.readbyqxmd.com/read/27856127/radiographic-assessment-of-knee-ankle-alignment-after-total-knee-arthroplasty-for-varus-and-valgus-knee-osteoarthritis
#4
Fuqiang Gao, Jinhui Ma, Wei Sun, Wanshou Guo, Zirong Li, Weiguo Wang
BACKGROUND: There are unanswered questions about knee-ankle alignment after total knee arthroplasty (TKA) for varus and valgus osteoarthritis (OA) of the knee. The aim of this retrospective study was to assess knee-ankle alignment after TKA. METHODS: The study consisted of 149 patients who had undergone TKA due to varus and valgus knee OA. The alignment and angles in the selected knees and ankles were measured on full-length standing anteroposterior radiographs, both pre-operatively and post-operatively...
November 14, 2016: Knee
https://www.readbyqxmd.com/read/27846395/mid-term-functional-outcome-of-a-total-arthroplasty-of-the-first-metatarsophalangeal-joint
#5
Corina Nüesch, Annegret Mündermann, Monika Horisberger
BACKGROUND: Arthroplasty of the first metatarsophalangeal joint is an alternative treatment option for end-stage hallux rigidus to the current gold standard of arthrodesis. The aim of this study was to investigate the mid-term functional outcome of an anatomically shaped prosthesis for the first metatarsophalangeal joint using pedobarography. METHODS: Ten patients (12 affected feet; age at surgery: 62.1 (SD: 7.2) years) were investigated preoperatively and 52 (SD: 3) months postoperatively using pedobarography (EMED, novel GmbH, Munich, Germany)...
November 10, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27829727/windswept-deformities-an-indication-to-individualise-valgus-correction-angle-during-total-knee-arthroplasty
#6
Gautam M Shetty, Arun Mullaji, Ahmed Adel Khalifa, Abhik Ray
PURPOSE: We aimed to determine variation in femoral valgus correction angle (VCA) between the two limbs in a patient with windswept deformity undergoing total knee arthroplasty (TKA). METHODS: Femoral VCA was measured on full-length, hip-to-ankle, standing radiographs and was compared between the varus and the valgus limbs in 66 patients with windswept deformities. RESULTS: The mean VCA in varus knees was significantly higher compared to mean VCA in valgus knees (p = 0...
March 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/27825939/location-of-the-ankle-center-for-total-knee-arthroplasty
#7
Shigeki Asada, Shigeshi Mori, Shinji Inoue, Ichiroh Tsukamoto, Masao Akagi
BACKGROUND: The purpose of this study was to investigate the ankle center position as determined from the malleoli for total knee arthroplasty (TKA). METHODS: We retrospectively analyzed computed tomography data from 102 patients with osteoarthritic knees. The tibial anteroposterior (AP) axis and transmalleolar axis (TMA) were used as rotational reference axes of the knee and ankle joint, respectively. With these axes, we regarded the offset distance from the intermalleolar midpoint as the position of the ankle center and investigated any angular osteotomy errors on the proximal tibia when the ankle center was assumed to the intermalleolar midpoint...
November 5, 2016: Knee
https://www.readbyqxmd.com/read/27810307/standard-radiographs-are-not-sufficient-for-assessing-knee-mechanical-axis-in-patients-with-advanced-osteoarthritis
#8
Christopher D Stickley, Jennifer J Wages, Ronald K Hetzler, Samantha N Andrews, Cass K Nakasone
BACKGROUND: The use of standard radiographs, and measured tibiofemoral angle (TFA), to assess lower extremity alignment is commonly practiced despite limited knowledge of its relationship to the mechanical axis (MA), as measured on hip-to-ankle (HTA) radiographs. This study assessed the predictive accuracy of previously developed equations, developed gender-specific regression equations using predictors from standard radiographs, and the clinical effectiveness of these equations in a large sample of cases using HTA radiographs as a gold standard...
September 28, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27807289/the-regionalization-of-total-ankle-arthroplasties-and-ankle-fusions-in-new-york-state-a-10-year-comparative-analysis
#9
John A Buza, James X Liu, Jeffrey Jancuska, Joseph A Bosco
: Background Total ankle arthroplasty (TAA) provides an alternative to ankle fusion (AF). The purpose of this study is to (1) determine the extent of TAA regionalization, as well as examine the growth of TAA performed at high-, medium-, and low-volume New York State institutions and (2) compare this regionalization and growth with AF. Methods The New York Statewide Planning and Research Cooperative System (SPARCS) administrative data were used to identify 737 primary TAA and 7453 AF from 2005 to 2014...
November 1, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27803219/the-monitoring-of-activity-at-home-after-total-hip-arthroplasty
#10
P A Toogood, M P Abdel, J A Spear, S M Cook, D J Cook, M J Taunton
AIMS: Total hip arthroplasty (THA) has well known subjective benefits, but little is known objectively about the recovery of mobility in the early post-operative period. PATIENTS AND METHODS: A total of 33 patients aged > 60 years who underwent elective primary THA had their activity monitored for 30 days post-operatively using an at-home (Fitbit) ankle accelerometer. Their mean age was 70.7 years (61 to 86); 15 (45.5%) were female. The rate of compliance and the mean level of activity were determined...
November 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27793137/time-trends-and-risk-factors-for-perioperative-complications-in-total-ankle-arthroplasty-retrospective-analysis-using-a-national-database-in-japan
#11
Takumi Matsumoto, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Naohiro Izawa, Tetsuro Yasui, Yuho Kadono, Sakae Tanaka
BACKGROUND: Total ankle arthroplasty (TAA) has become increasingly popular worldwide as an alternative to ankle arthrodesis for surgical treatment of end-stage ankle arthritis. The aim of this epidemiological study, using a national inpatient database in Japan, was to describe the volume, utilization, patient characteristics, and temporal trends regarding these procedures in Japan, and to identify the risk factors associated with perioperative adverse events in TAA. METHODS: This was a population-based, retrospective cohort study...
October 28, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27779156/preoperative-measurement-of-tibial-resection-in-total-knee-arthroplasty-improves-accuracy-of-postoperative-limb-alignment-restoration
#12
Pei-Hui Wu, Zhi-Qi Zhang, Shu-Ying Fang, Zi-Bo Yang, Yan Kang, Ming Fu, Wei-Ming Liao
BACKGROUND: Accuracy of implant placement in total knee arthroplasty (TKA) is crucial. Traditional extramedullary alignment instruments are fairly effective for achieving the desired mean tibial component coronal alignment. We modified the traditional tibial plateau resection technique and evaluated its effect on alignment restoration. METHODS: Two hundred and eighty-two primary TKAs in our hospital between January 2013 and December 2014 were enrolled in this retrospective study...
2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27756868/effect-of-insurance-on-rates-of-total-ankle-arthroplasty-versus-arthrodesis-for-tibiotalar-osteoarthritis
#13
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...
October 18, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27756867/corrigendum
#14
(no author information available yet)
Oliver SM, Coetzee JC, Nilsson LJ, Samuelson KM, Stone RM, Fritz JE, Giveans MR. Early patient satisfaction results on a modern generation fixed-bearing total ankle arthroplasty. Foot Ankle Int 2016;37(9):938-943. (Original DOI: 10.1177/1071100716648736).
October 18, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27726920/a-rare-complication-of-total-knee-arthroplasty-type-l-complex-regional-pain-syndrome-of-the-foot-and-ankle
#15
Gözde Özcan Söylev, Hakan Boya
Complex regional pain syndrome (CRPS) is a painful and disabling disorder that usually affects the extremities. This complication may affect the knee joint after total knee arthroplasty (TKA). We report a unique case of CRPS of the foot and ankle, which was an unusual involvement site for CRPS after TKA.
October 7, 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27717989/total-ankle-arthroplasty-versus-ankle-arthrodesis-for-the-treatment-of-end-stage-ankle-arthritis-a-meta-analysis-of-comparative-studies
#16
Hyun Jung Kim, Dong Hun Suh, Jae Hyuk Yang, Jin Woo Lee, Hak Jun Kim, Hyeong Sik Ahn, Seung Woo Han, Gi Won Choi
PURPOSE: Total ankle arthroplasty (TAA) and ankle arthrodesis (AA) are the main surgical treatment options for end-stage ankle arthritis. Although the superiority of each modality remains debated, there remains a lack of high-quality evidence-based studies, such as randomized controlled clinical trials, and meta-analyses of comparative studies. We performed a meta-analysis of comparative studies to determine whether there is a significant difference between these two procedures in terms of (i) clinical scores and patient satisfaction, (ii) re-operations, and (iii) complications...
October 7, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27698178/correlation-of-physical-performance-and-patient-reported-outcomes-following-total-ankle-arthroplasty
#17
Evan P McConnell, Robin M Queen
BACKGROUND: Functional recovery following total ankle arthroplasty (TAA) is assessed with patient-reported metrics, but physical performance tests may allow for a more accurate assessment of patient function. We quantified correlations between patient-reported measures and physical performance tests in patients after TAA to determine the usefulness of physical performance tests in post-TAA assessment. METHODS: In total, 140 patients with end-stage ankle osteoarthritis were assessed prior to TAA and again at 12 and 24 months postoperatively...
October 2, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27694590/the-early-outcome-of-kinematic-versus-mechanical-alignment-in-total-knee-arthroplasty-a-prospective-randomised-control-trial
#18
H B Waterson, N D Clement, K S Eyres, V I Mandalia, A D Toms
AIMS: Our aim was to compare kinematic with mechanical alignment in total knee arthroplasty (TKA). PATIENTS AND METHODS: We performed a prospective blinded randomised controlled trial to compare the functional outcome of patients undergoing TKA in mechanical alignment (MA) with those in kinematic alignment (KA). A total of 71 patients undergoing TKA were randomised to either kinematic (n = 36) or mechanical alignment (n = 35). Pre- and post-operative hip-knee-ankle radiographs were analysed...
October 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27642045/joint-mechanics-after-total-knee-arthroplasty-while-descending-stairs
#19
Verena U Fenner, Henrik Behrend, Markus S Kuster
BACKGROUND: Modern knee designs do not fully restore the anatomy and kinematics of the natural knee. This study evaluates the kinematic and kinetic changes of well-functioning patients with total knee arthroplasty (TKA) in comparison to a healthy age-matched control group while descending stairs and level walking. The aim was to have a baseline for further investigations of TKA patients with problems. METHODS: Fifteen patients satisfied with TKA (8♀/7♂; 66.8 ± 7...
August 13, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27595854/surgical-treatment-of-bony-and-soft-tissue-impingement-in-total-ankle-arthroplasty
#20
Christopher E Gross, Samuel B Adams, Mark Easley, James A Nunley, James K DeOrio
: Background Impingement may be an underreported problem following modern total ankle replacements (TARs). The etiology of impingement is unclear and likely multifactorial. Because of the lack of conservative treatment options for symptomatic impingement after TAR, surgery is often necessary. Methods We retrospectively identified a consecutive series of 1001 primary TARs performed between January 1998 and December 2014. We identified patients who required a secondary surgery to treat soft-tissue and bony impingement by either an open or arthroscopic procedure...
September 5, 2016: Foot & Ankle Specialist
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