Low polyethylene creep and wear following mobile-bearing unicompartmental knee replacement
نویسندگان
چکیده
منابع مشابه
Polyethylene wear of mobile-bearing unicompartmental knee replacement at 20 years.
The Oxford unicompartmental knee replacement (UKR) was designed to minimise wear utilising a fully-congruent, mobile, polyethylene bearing. Wear of polyethylene is a significant cause of revision surgery in UKR in the first decade, and the incidence increases in the second decade. Our study used model-based radiostereometric analysis to measure the combined wear of the upper and lower bearing s...
متن کاملUnnecessary contraindications for mobile-bearing unicompartmental knee replacement.
The contraindications for unicompartmental knee replacement (UKR) remain controversial. The views of many surgeons are based on Kozinn and Scott's 1989 publication which stated that patients who weighed more than 82 kg, were younger than 60 years, undertook heavy labour, had exposed bone in the patellofemoral joint or chondrocalcinosis, were not ideal candidates for UKR. Our aim was to determin...
متن کاملPolyethylene wear in Oxford unicompartmental knee replacement: a retrieval study of 47 bearings.
The Oxford Unicompartmental Knee replacement (UKR) was introduced as a design to reduce polyethylene wear. There has been one previous retrieval study involving this implant, which reported very low rates of wear in some specimens but abnormal patterns of wear in others. There has been no further investigation of these abnormal patterns. The bearings were retrieved from 47 patients who had rece...
متن کاملIn-vitro wear of fixed and mobile bearing unicompartmental knee replacements
Introduction Unicompartmental knee replacement (UKR) is an increasingly popular surgical intervention for the treatment of osteoarthritis, involving the replacement of only one compartment of the natural knee. There is promising clinical literature which shows excellent long term survivorship of both fixed and mobile bearing UKR, with fixed bearings showing more consistent long-term performance...
متن کاملMedial Unicompartmental Osteoarthritis (MUO) of the Knee: Unicompartmental Knee Replacement (UKR) or Total Knee Replacement (TKR)
The aim of this review article is to analyze the clinical effectiveness of total knee replacement (TKR) compared to unicompartmental knee replacement (UKR) in patients with medial unicompartmental osteoarthritis (MUO) in terms of survival rates, revision rates and postoperative complications. The search engine was MedLine. The keywords used were: medial knee osteoarthritis. Three thousand and n...
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ژورنال
عنوان ژورنال: Knee Surgery, Sports Traumatology, Arthroscopy
سال: 2020
ISSN: 0942-2056,1433-7347
DOI: 10.1007/s00167-020-06243-7