The ankle joint is part of a biomechanical hindfoot complex. Approximately 1% of the world's adult population is affected by ankle osteoarthritis (AO). Trauma is the primary cause of ankle OA, often resulting in varus or valgus deformities. Only 50% of patients with end-stage ankle OA have a normal hindfoot alignment. The biomechanics and morphology of the arthritic valgus ankle is reviewed in this article and therapeutic strategies, including joint preserving and nonpreserving modalities are presented. Pitfalls are discussed and the literature is reviewed regarding outcomes in patients with valgus deformity who underwent total ankle replacement.
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http://dx.doi.org/10.1016/j.fcl.2012.08.007 | DOI Listing |
J Orthop Sci
November 2024
Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan.
Medicina (Kaunas)
October 2024
Department of Orthopaedic Surgery and Traumatology, Hospital General Universitario Reina Sofía, Avda. Intendente Jorge Palacios, 1, 30003 Murcia, Spain.
The Coronal Plane Alignment of the Knee (CPAK) classification is a pragmatic distribution of nine phenotypes for coronal knee alignment that can be used on healthy and arthritic knees. Our study aimed to describe the CPAK distributions in a Spanish southeast osteoarthritic population and compare them to other populations' published alignment distributions. Full-leg standing X-rays of the lower limb from 528 cases originating from the so-called Vega Alta del Segura (southeast of the Iberian Peninsula) were retrospectively analysed.
View Article and Find Full Text PDFJ ISAKOS
December 2024
Department of Orthopaedic Surgery and Joint Surgery Centre, Takatsuki General Hospital, 1-3-13, Kosobe-Cho, Takatsuki City, Osaka, 561-1115, Japan. Electronic address:
Unicompartmental knee arthroplasty (UKA) is in many ways the ultimate kinematic operation, as the express aim is to resurface the diseased side of the joint and restore pre-arthritic alignment and balance while maintaining integrity of both cruciate ligaments. An increasing body of knowledge relates the outcomes of UKA to pre-arthritic anatomy rather than an arbitrarily defined neutral. The Coronal Plane Alignment of the Knee (CPAK) classification provides a validated technique for calculating pre-arthritic limb alignment (the arithmetic hip-knee-ankle angle (aHKA)) and joint line obliquity (JLO) and will enable a greater understanding of the interactions between pre-arthritic anatomy, choice of prosthetic position and outcomes.
View Article and Find Full Text PDFArthroscopy
September 2024
Midwest Orthopaedics at Rush (J.P.S.).
In well-indicated patients, meniscal allograft transplantation (MAT) survivorship can approach 80% to 90% at 10 years and 50% to 60% at 15 years, although these studies have included mostly younger patients (mean ages 25-30 years). Evidence-based indications for MAT are symptomatic meniscal deficiency in the absence of uncorrected osteoarthritis and malalignment in the young, active patient. The definition of young and active continues to evolve as demands of an aging population grow, and MAT has been performed with favorable outcomes in those over 40 and even 50 years old.
View Article and Find Full Text PDFMusculoskelet Surg
September 2024
Orthopaedic and Traumatology Department, Assiut University Hospital, Assiut, Egypt.
Purpose: The aim of this study is to report the prevalence of femoral bowing in the Egyptian arthritic knees as a representative of the middle eastern population and to study the correlation between the femoral bowing and the degree of arthritis, varus deformity and the distal femoral valgus cut angle (VCA).
Methods: This is a single-center observational cross-sectional study. Out of 562 knees Scheduled for TKA, 124 knees were excluded leaving 438 knees eligible for the study.
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