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General Orthopaedics

TOTAL KNEE ARTHROPLASTY FOR OSTEOARTHRTIS IN PATIENTS <55 YEARS OLD: A SYSTEMATIC REVIEW

British Indian Orthopaedic Society (previously IOSUK) Annual Conference, July 2016



Abstract

The proportion of younger patients undergoing total knee arthroplasty (TKA) is increasing and predictions state that the 45–54 age group will be the fastest growing group by 2030. We aim to collate data across studies to assess functional outcomes following total knee replacement in patients under 55 years of age. Secondary outcomes include implant survival and complications will also be reviewed.

The search identified 980 studies for title and abstract review. 43 full-texts were then assessed. 13 studies underwent quality assessment and data extraction from them. PRISMA guidelines were followed throughout. Outcomes extracted included pre- and post-operative functional scores, range of motion (ROM) and patient satisfaction. Clinical complications and survival were also recorded.

Across 13 studies we were able to demonstrate 54-point improvement in clinical Knee Society Score and a 2.9° improvement in range of motion. Satisfaction rate was 85.5%. Revision rate was 5.4% across 1323 TKAs. Risk of revision for aseptic loosening was 0.37% per year.

Total knee arthroplasty is an excellent treatment option for the young osteoarthritic knee with a >50% improvement in functional knee scores. Satisfaction is high and the revision rate remains under 1% per year.