Clinical and technical factors influencing outcomes of unicompartmental knee arthroplasty: Retrospective multicentre study of 944 knees

Sebilo, A; Casin, Charles; Lebel, B.; Rouvillain, J.-L.; Chapuis, Sébastien; Bonnevialle, P.

doi:10.1016/j.otsr.2013.02.002

Cited by 33 publications

(25 citation statements)

References 60 publications

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“…reported superior survival in older patients and men, with no difference in PROMs or satisfaction for either and no effect of BMI 44 . Case series from Matharu et al.…”

Section: Discussionmentioning

confidence: 98%

Determinants of revision and functional outcome following unicompartmental knee replacement

Liddle

Judge

Pandit

et al. 2014

Osteoarthritis and Cartilage

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SummaryObjectiveUnicompartmental Knee Replacement (UKR) has important advantages over total knee replacement (TKR) but has a higher revision rate. Outcomes vary between centres, suggesting that risk factors for revision may be modifiable with changes to patient selection or operative technique. The objective of this study was to determine factors affecting revision, patient-reported outcome and satisfaction following UKR.Method25,982 cases from three national databases were analysed. Multilevel multivariable regression models were used to examine the effect of patient and surgical factors on implant survival, patient-reported outcome and satisfaction at 6 months and 8 years following UKR.ResultsOf the 25,982 cases, 3862 (14.9%) had pre-operative and 6-month Oxford Knee Scores (OKS). Eight-year survival was 89.1% (95% confidence intervals (CI) 88.3–89.9). OKS increased from 21.9 (SD 7.6) to 37.5 (SD 9.5). Age (Hazard ratio (HR) 0.96 (95% CI 0.96–0.97) per year), male gender (HR 0.86 (95% CI 0.76–0.96)), unit size (HR 0.92 (95% CI 0.86–0.97) per case up to 40 cases/year) and operating surgeon grade (HR 0.78 (95% CI 0.67–0.91) if consultant) predicted improved implant survival. Older patients (≥75 years), and those with lower deprivation levels had superior OKS and satisfaction (adjusted mean difference 0.14 (95% CI 0.09–0.20) points per year of age and 0.93 (95% CI 0.60–1.27) per quintile of deprivation). Ethnicity, anxiety and co-morbidities also affected patient-reported outcome.ConclusionsThis study has identified important predictors of revision and patient-reported outcome following UKR. Older patients, who are least likely to be offered UKR, may derive the greatest benefits. Improved understanding of these factors may improve the long-term outcomes of UKR.

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“…reported superior survival in older patients and men, with no difference in PROMs or satisfaction for either and no effect of BMI 44 . Case series from Matharu et al.…”

Section: Discussionmentioning

confidence: 98%

Determinants of revision and functional outcome following unicompartmental knee replacement

Liddle

Judge

Pandit

et al. 2014

Osteoarthritis and Cartilage

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“…Grade 5 5 interface. Sebilo et al 19 reviewed the outcome of 862 medial compartment replacements and found a significantly increased 10-year survival rate for the prosthesis in those over the age of 70 (88.3%) vs those younger than 70 (76.7%). They also found the over 80s had a significantly better improvement in both the KSS objective and functional scores than those under 80.…”

Section: Discussionmentioning

confidence: 99%

Unicompartmental knee replacement in patients aged 70 years and older

Ventura

Legnani

Borgo

2019

Muscle Ligaments and Tendons J

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Introduction:The management of isolated unicompartmental osteoarthritis in the patient aged 70 years and older is an issue of debate. The purpose of the present study was to retrospectively evaluate the outcomes of patients aged over 70 years who underwent unicompartmental knee replacement (UKR) for the treatment of isolated unicompartmental osteoarthritis. The hypothesis was that this represents a safe and viable procedure leading to improved functional outcome in elderly patients affected by isolated unicompartmental osteoarthritis. Methods: 22 consecutive medial compartment UKRs performed between 1998 and 2008 were retrospectively evaluated. Mean age was 74 years (range 70-93 years). Patients were evaluated preoperatively and after an average follow-up of 6.2 years (range 2 to 8). Assessment included KOOS score, WOMAC score, Knee Society Score. Standard X-rays were performed prior to surgery and at follow-up. Results: Twenty patients showed a statistically significant improvement in all parameters. One patient who was 93 years old at the time of surgery died for unrelated causes. One patient required conversion to a total knee arthroplasty. Discussion: UKR is a safe and clinically effective procedure, which has been proven valuable for the treatment of elderly patients with isolated unicompartmental osteoarthritis and with initial degenerative signs in the other compartments. Conclusion: Age more than 70 does not appear to be a contraindication to the procedure. Level of evidence: IV (case series).KEY WORDS: unicompartmental osteoarthritis, medial knee osteoarthritis, unycondilar knee replacement, elderly people.

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“…Other groups of body mass index were not evaluated. Most current studies report that a body mass index reaching the level of obesity would not affect postoperative clinical results (3,13,14). This study also supports these current information.…”

Section: Discussionmentioning

confidence: 92%

Vücut Kitle İndeksinin Unikondiler Diz Artroplastisinin Klinik Sonuçlarına Etkisi

Ünal¹,

Ercan²,

Oğul³

et al. 2018

SDÜ Tıp Fakültesi Dergisi

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Bu çalışmanın amacı, sabit ekleme sistemi ile unikondiler diz artroplastisi yapılan hastaların vücut kütle indeksinin postoperatif fonksiyonel diz verilerine olan etkilerini araştırmaktır. Gereç ve yöntemler: Vücut kitle indeksi, Dünya Sağlık Örgütü tarafından önerilen yöntemle hesaplandı. Hastalar beden kitle indeksi, vücut kitle indeksi 30 kg / m2'nin altına ve üstüne çıkanlara göre iki gruba ayrıldı. Preoperatif ve postoperatif eklem hareket açıklığı, Görme Analog Skalası, Diz Cemiyeti Skoru, Oxford Diz Skoru, Western Ontario ve McMaster Üniversitesi osteoartrit indeksi skoru, hastaların memnuniyetlerini ve dizlerinin fonksiyonel durumlarını saptamak için kullanıldı. Bulgular: Vücut kitle indeksi 30 kg / m2'nin altında 44 hasta (Grup 1) ve vücut kütle indeksi 30 kg / m2'nin üzerinde 38 hasta (Grup 2) vardı. Grupların demografik verileri (vücut ağırlıkları ve vücut kütle indeksleri dışında) ve izlem uzunlukları açısından istatistiksel olarak anlamlı fark yoktu (p˃0.05). Fonksiyonel diz skorlarının grup içi değerlendirmesinde her iki grupta postoperatif dönemde istatistiksel olarak anlamlı bir iyileşme tespit edildi (p: 0.001). Ancak, bu parametreler arasında gruplar arasında istatistiksel olarak anlamlı bir fark bulunamadı (p˃0.05). Sonuç: Vücut kütle indeksi obezite seviyesine ulaşır sa postoperatif klinik sonuçları etkilemez.

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Clinical and technical factors influencing outcomes of unicompartmental knee arthroplasty: Retrospective multicentre study of 944 knees

Abstract: Level IV, retrospective study.

Cited by 33 publications

References 60 publications

Determinants of revision and functional outcome following unicompartmental knee replacement

Determinants of revision and functional outcome following unicompartmental knee replacement

Unicompartmental knee replacement in patients aged 70 years and older

Vücut Kitle İndeksinin Unikondiler Diz Artroplastisinin Klinik Sonuçlarına Etkisi

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