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KMID : 0359619950070010009
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Journal of Korean Knee Society
1995 Volume.7 No. 1 p.9 ~ p.14
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Function of Extensor Mechanism Following Lateral Retinacular Release In MG II Total Knee Arthroplasty
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Abstract
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Extensor function following lateral retinacular retinacular release(LRR) in 83 MG II total knee arthroplasties, including fourty-seven knees(56.6%) with LRR and tirty-six knees(43.4%) without LRR, in 61(73.5%) OA knees and 22(26.5%) RA knees were
assessed for 3 years on averge. Postoperative extension lag was checked manually at six weeks, twelve weeks, six months and one year. The remained flexion contracture was measured at final follow-up at least one year postoperatively. The results
were
analyzed statisticall with chi-square test. The extension lag following lateral retinacular release disappeared by six month in every case. there was no statistically significant difference of the rate of deleayed recovery between the group with
intact
retinacuum and LRR in osteoarthritis (p=0.632), in rheumatoid arthritis(p=0.467) and in total cases9p=0.154). Statistical analysis also showed no sigtnficant difference of rate of flexion contracture after one year postoperatively between the
group
of
LRR and intact retinaculum in osteoarthritis (p=0.711), in rheumatoid arthritis(p=0.467) and in total cases(p=0.492). There was no evidence of avascular necrosis of the patella radiologically. From these results it was suggested that in the long
run the
lateral retinacular release did not do any harm in restoring quadriceps function clinically.
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KEYWORD
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