This prospective study describes the outcome of first 1000 phase 3 Oxford medial unicompartmental knee replacements (UKRs) implanted using a minimally invasive surgical approach for recommended indications by two surgeons and followed up independently. The mean follow-up was 5.6 years (1 to 11) with 547 knees having minimum five years. At their score 41.3 (sd 7.2), American Knee Society Objective Score 86.4 13.4), Functional 86.1 16.6), Tegner activity 2.8 1.1). For entire cohort, maximum...

This prospective study reports the 15-year survival and ten-year functional outcome of a consecutive series 1000 minimally invasive Phase 3 Oxford medial UKAs (818 patients, 393 men, 48%, 425 women, 52%, mean age 66 years; 32 to 88). These were implanted by two surgeons involved with design prosthesis treat anteromedial osteoarthritis spontaneous osteonecrosis knee, which are recommended indications. Patients prospectively identified followed up independently for 10.3 years (5.3 16.6). At...

This prospective study describes the complications and survival of first 688 Phase 3 Oxford medial unicompartmental knee replacements implanted using a minimally-invasive technique by two surgeons followed up independently. None was lost to follow-up. We had carried out 132 procedures more than five years ago. The clinical assessment 101 these which were available for review at is also presented. Nine knees revised: four infection, three dislocation bearing unexplained pain. A further seven...

The contraindications for unicompartmental knee replacement (UKR) remain controversial. 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 60 years, undertook heavy labour, had exposed bone in the patellofemoral joint or chondrocalcinosis, not ideal candidates UKR. Our aim was to determine whether these potential should apply with a mobile-bearing In order do this outcome compared without prospective...

Anterior knee pain and/or radiological evidence of degeneration the patellofemoral joint are considered to be contraindications unicompartmental replacement. The aim this study was determine whether is case. Between January 2000 and September 2003, in 100 knees (91 patients) which Oxford replacements were undertaken for anteromedial osteoarthritis, pre-operative anterior status defined using Altman Ahlback systems. Outcome evaluated at two years with score American Knee Society score....

It is not clear whether anterior knee pain and osteoarthritis (OA) of the patellofemoral joint (PFJ) are contraindications to medial unicompartmental arthroplasty (UKA). Our aim was investigate long-term outcome a consecutive series patients, some whom had PFJ OA managed with UKA.We assessed ten-year functional outcomes 15-year implant survival 805 knees (677 patients) following mobile-bearing UKA. The intra-operative status documented and, exception bone loss grooving lateral side, neither...

Varus malalignment after total knee replacement is associated with a poor outcome. Our aim was to determine whether the same true for medial unicompartmental (UKR). The anatomical leg alignment measured prospectively using long-arm goniometer in 160 knees an Oxford UKR. Patients were then grouped according their mechanical as neutral (5 degrees 10 of valgus), mild varus (0 4 valgus) and marked (> 0 varus). groups compared at five years terms absolute change Knee score, American Society score...

Background: Data regarding outcomes following intralesional curettage and cryosurgical treatment of low-grade chondrosarcoma bone are limited. The aim this study was to assess the long-term oncologic functional two different cryosurgery techniques. Methods: Forty-three lesions (in forty-two patients) were treated with from June 1983 October 2006. Eleven cryoprobes thirty-two modified direct-pour Marcove technique. mean patient age 44.9 ± 11.3 years (range, 21.8 66.4 years), duration...

We randomised 62 knees to receive either cemented or cementless versions of the Oxford unicompartmental knee replacement. The implants used in both arms study were similar, except that components coated with porous titanium and hydroxyapatite. tibial interfaces studied fluoroscopically-aligned radiographs. At one year there was no difference clinical outcome between two groups. Narrow radiolucent lines seen at bone-implant 75% components. These partial 43%, complete 32%. In implants,...

Mobile-bearing unicompartmental knee replacements (UKRs) with a flat tibial plateau have not performed well in the lateral compartment, owing to high dislocation rate. This led development of Domed Lateral Oxford UKR (Domed OUKR) biconcave bearing. The aim this study was assess survival and clinical outcomes OUKR large patient cohort medium term. We prospectively evaluated 265 consecutive knees isolated disease compartment mean age at surgery 64 years (32 90). At follow-up four (sd 2.2, (0.5...

Aims While medial unicompartmental knee arthroplasty (UKA) is indicated for patients with full-thickness cartilage loss, it occasionally used to treat those partial-thickness loss. The aim of this study was investigate the five-year outcomes in a consecutive series UKAs partial thickness loss compartment knee. Patients and Methods Between 2002 2014, 94 were undertaken 90 followed up independently mean six years (1 13). These had either on both femur tibia (13 knees), or tibia, full other...

The options for treatment of the young active patient with isolated symptomatic osteoarthritis medial compartment and pre-existing deficiency anterior cruciate ligament are limited. potential longevity implant levels activity may preclude total knee replacement, tibial osteotomy unicompartmental arthroplasty unreliable because ligamentous instability. Unicompartmental arthroplasties tend to fail wear or loosening resulting from eccentric loading. Therefore, we combined reconstruction in 15...

The Oxford unicompartmental knee replacement (UKR) is an established treatment option in the management of symptomatic end-stage medial compartmental osteoarthritis (MCOA), which works well young and active patient. However, previous studies have shown that it reliable only presence a functionally intact anterior cruciate ligament (ACL). This review reports outcomes, at mean five years maximum ten years, 52 consecutive patients with age 51 (36 to 57) who underwent staged or simultaneous ACL...

Some health providers ration knee arthroplasty on the basis of body mass index (BMI). There is no long-term data outcome medial mobile-bearing unicompartmental (UKA) in different BMI groups. This study aimed to determine effect patient (BMI) patient-reported outcomes and survival UKA a large non-registry cohort. Our hypothesis that increasing would be associated with worse outcomes.Data were analysed from prospective cohort 1000 consecutive Oxford mean 10-year follow-up. Patients grouped: <...

Aims Mixed clinical results have been reported following the use of lateral unicompartmental knee arthroplasty (UKA) in patients with isolated compartment osteoarthritis (OA) knee. Although this procedure may be appropriate for about 10% knees needing arthroplasty, it is only used 1%. The aim study was to determine medium-term Fixed Lateral Oxford (FLO) UKA. Methods We report and survival 305 consecutive FLO UKAs implanted 279 between July 2015 August 2022. A total 283 (93%) satisfied...

Patient-specific instrumentation (PSI) has been proposed as a means of improving surgical accuracy and ease implantation during technically challenging procedures such unicompartmental knee arthroplasty (UKA). The purpose this prospective randomised controlled trial was to compare the functional outcome mobile-bearing medial UKAs implanted with without PSI by experienced UKA surgeons.Mobile-bearing were in 43 patients using either guides or conventional instrumentation. Intra-operative...

The cementless Oxford unicompartmental knee replacement has been demonstrated to have superior fixation on radiographs and a similar early complication rate compared with the cemented version. However, small number of cases come our attention where, after an apparently successful procedure, tibial component subsides into valgus position increased posterior slope, before becoming well-fixed. We present clinical radiological findings these six patients describe their natural history likely...