Unicompartmental knee arthroplasty: an intermediate report of survivorship after the introduction of a new system with analysis of failures
| Autor: | Paul Gill, Parminder J.S. Jeer, Gregory C.R. Keene |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
musculoskeletal diseases
Knee function Male Reoperation medicine.medical_specialty medicine.medical_treatment Osteoarthritis Prosthesis Design Coated Materials Biocompatible Survivorship curve Outcome Assessment Health Care medicine Humans Orthopedics and Sports Medicine Unicompartmental knee arthroplasty Arthroplasty Replacement Knee Aged Retrospective Studies Aged 80 and over business.industry Retrospective cohort study Middle Aged Osteoarthritis Knee musculoskeletal system medicine.disease Single surgeon Confidence interval Surgery Female business Knee Prosthesis Oxford knee score Follow-Up Studies |
| Zdroj: | The Knee. 11(5) |
| ISSN: | 0968-0160 |
| Popis: | We describe the outcome of a series of 66 consecutive porous coated low contact stress (LCS) unicompartmental knee arthroplasty (UKA) cases performed in 52 patients for osteoarthritis (OA) by a single surgeon. Both survival, using the endpoint of revision for any cause, and knee function, using the Oxford knee score (OKS) as a validated outcome measure, were established in a retrospective review. At an average postoperative follow-up period of 5.9 years (range 5.1-6.6), there were 8 knees in patients who had died and 58 knees in those who were still living. We established the status of all knees, and prosthesis survival at 5 years was 89.7% (95% confidence interval, 81.6% to 97.7%). Technical errors were responsible for four of six failures and included progression of lateral compartment OA due to overcorrection, a medial tibial stress fracture due to poor pin placement, and a case where cement was required and poor cementing technique lead to early tibial component loosening. In the remaining 52 knees, the average preoperative OKS had improved significantly (p |
| Databáze: | OpenAIRE |
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