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...

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...

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...

It is suggested that unicompartmental knee replacement (UKR) offers the potential to restore normal knee kinematics better than total knee replacement (TKR) because of retaining the cruciate ligaments, and better preservation of the overall geometry. It was hypothesized that patient-specific UKR would restore normal knee kinematics even better because of a customised articular shape. A comparat...

We randomised 102 knees suitable for a unicompartmental replacement to receive either a unicompartmental (UKR) or total knee replacement (TKR) after arthrotomy. Both groups were well matched with a predominance of females and a mean age of 69 years. Patients in the UKR group showed less perioperative morbidity, but regained knee movement more rapidly and were discharged from hospital sooner. At...

We reviewed the rate of revision of unicompartmental knee replacements (UKR) from the New Zealand Joint Registry between 1999 and 2008. There were 4284 UKRs, of which 236 required revision, 205 to a total knee replacement (U2T) and 31 to a further unicompartmental knee replacement (U2U). We used these data to establish whether the survival and functional outcome for revised UKRs were comparable...

There is currently a growing demand for unicompartmental knee replacement (UKR) to treat degenerative osteoarthritis or osteonecrosis of a single compartment of the knee. This procedure has evolved significantly over the past three decades and we here present a brief review of the literature on this topic. This historical overview traces the hypotheses that have led to the modern state of the a...

Between 1989 and 1992 we had 102 knees suitable for unicompartmental knee replacement (UKR). They were randomised to receive either a St Georg Sled UKR or a Kinematic modular total knee replacement (TKR). The early results demonstrated that the UKR group had less complications and more rapid rehabilitation than the TKR group. At five years there were an equal number of failures in the two group...

Anterior cruciate ligament (ACL) is among the most important ligaments in medial unicompartmental knee replacement (UKR) indication and postoperative survival. There no consensus regarding treatment options of acute ACL rupture after UKR. The debate whether total or reconstruction should be performed if patient has an instability complaint still open. In this case report, we aimed to report sur...

Varus malalignment after total knee replacement is associated with a poor outcome. Our aim was to determine whether the same was true for medial unicompartmental knee replacement (UKR). The anatomical leg alignment was measured prospectively using a long-arm goniometer in 160 knees with an Oxford UKR. Patients were then grouped according to their mechanical leg alignment as neutral (5 degrees t...