Abstract：Objective To investigate the result of total knee arthroplasty (TKA) versus unicompartmental knee arthroplasty (UKA) in the treatment of isolated compartmental osteoarthritis of knee.Methods From March 2012 to March 2015, the clinical data of the single compartment osteoarthritis patients underwent TKA and UKA with follow-up were retrospectively studied. According to different surgical Methods, the TKA group contained 48 patients (48 knees),the UKA group contained 40 patients (40 knees). Patients evaluation focused on operative time, blood loss, postoperative drainage, the amount of postoperative 1d, 3d, 1w hemoglobin, the decline of postoperative 3 d hemoglobin and the last follow-up of motion and efficacy(Hospital for Special Surgery, HSS).Results The patients in the two groups were operated successfully. Eighty-eight patients were followed up from 6 to 36 months, an average of 20.25 months. The operation time of TKA group [(85.77±7.61)min] was longer than that in the UKA group [(80.50±6.82)min], the blood loss of TKA group[(103.54±17.68)mL] was more than that in the UKA group [(74.75±11.82)mL], the postoperative drainage of TKA group [(420.21±68.80)mL] was more than that in the UKA group [(241.75±53.05)mL], the differences were all statistically significant (t=3.389, t'=8.787, t'=13.411, all P values<0.01). The hemoglobin level before surgery of two groups had no significant difference (P>0.05), the amount of postoperative 1 d, 3 d, 1 week were more in UKA than TKA, and the amount of postoperative 3 d hemoglobin decreased were less in UKA than TKA, the differences were statistically significant (P<0.05). The dates of knees being able to flex >90°after operation were less in the UKA group[(12.63±3.10)d] than those in the TKA group[(7.33±3.02)d](t=8.086, P<0.01), the end of the follow-up of knee flexion was significantly greater in the UKA group(116.98°±13.71°) than that in the TKA group(125.13°±15.95°)(t=2.576,P<0.01). The HSS score of two groups rated excellent, good, fair, and poor were 25, 19, 3, 1 cases, and 23,15, 2, 0 cases, respectively. The excellent and good rates were 91.67% (44/48) and 95.00% (38/40), respectively, the difference was not statistically significant (Z=0.603, P>0.05). Only one case had deep vein thrombosis in TKA group, but recovered after intervention treatment. The remaining patients had no complications.Conclusions For the treatment of isolated compartmental osteoarthritis of knee, UKA can a chieve good Results as well as TKA, but it has less blood loss, shorter operative time and more rapid postoperative recovery than TKA.
李程, 张骏, 李强, 郭开今, 陈向阳, 查国春, 王立新. 全膝关节置换术与单髁置换术治疗膝关节单间室骨关节炎的疗效比较[J]. 中华解剖与临床杂志, 2017, 22(2): 121-126.
Li Cheng, Zhang Jun, Li Qiang, Guo Kaijin, Chen Xiangyang, Zha Guochun, Wang Lixin.. Comparison of total knee arthroplasty and unicompartmental knee arthroplasty in patients with osteoarthritis of knee in single compartment. Chinese Journal of Anatomy and Clinics, 2017, 22(2): 121-126.
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2017, Vol. 22 
