Newman J H, Ackroyd C E, Shah N A
Avon Orthopaedic Centre, Southmead Hospital, Westbury on Trym, Bristol, UK.
J Bone Joint Surg Br. 1998 Sep;80(5):862-5. doi: 10.1302/0301-620x.80b5.8835.
We randomised 102 knees suitable for a unicompartmental replacement to receive either a unicompartmental (UKR) or total knee replacement (TKR) after arthrotomy. Both groups were well matched with a predominance of females and a mean age of 69 years. Patients in the UKR group showed less perioperative morbidity, but regained knee movement more rapidly and were discharged from hospital sooner. At five years, two UKRs and one TKR had been revised; another TKR was radiologically loose. All other knees appeared to be clinically and radiologically sound. Pain relief was good in both groups but the number of knees able to flex > or =120 degrees was significantly higher in the UKR group (p < 0.001) and there were more excellent results in this group. Our findings have shown that UKR gives better results than TKR and that this superiority is maintained for at least five years.
我们将102个适合单髁置换的膝关节随机分组，在关节切开术后分别接受单髁置换（UKR）或全膝关节置换（TKR）。两组患者匹配良好，以女性为主，平均年龄69岁。UKR组患者围手术期发病率较低，但膝关节活动恢复更快，出院更早。五年时，有2例UKR和1例TKR进行了翻修；另有1例TKR在影像学上显示松动。所有其他膝关节在临床和影像学上均表现良好。两组的疼痛缓解情况均良好，但UKR组中能够屈曲≥120度的膝关节数量显著更多（p<0.001），且该组的优良结果更多。我们的研究结果表明，UKR比TKR效果更好，且这种优势至少维持了五年。
