Outcomes of mobile bearing unicompartmental knee arthroplasty in medial osteoarthritis knee with and without preoperative genu recurvatum  

作　　者：Boonchana Pongcharoen Krit Boontanapibul 

机构地区：[1]Orthopedics, Faculty of medicine, Thammasat University [2]Orthopedics, Thammasat University

出　　处：《World Journal of Orthopedics》2018年第9期149-155,共7页世界骨科杂志（英文版）

摘　　要：AIM To compare clinical outcomes of patients with and without preoperative genu recurvatum(GR) following mobile bearing unicompartmental knee arthroplasty(UKA). METHODS We prospectively followed 176 patients for at least 24 mo who had been treated by unilateral, minimally invasive, Oxford UKA. Patients with medial osteoarthritis(OA) knee and preoperative GR(Group Ⅰ) accounted for 18%(n = 32) and patients without preoperative GR(Group Ⅱ) accounted for the remaining 82%(n = 144). Knee score, pain scores, and functional scores were assessed for each patient and compared between the two groups. The incidence of postoperative GRand the postoperative hyperextension angles also were recorded and analyzed. RESULTS The pain score, knee score and functional score were not significantly different between the two groups. Similarly, the incidence of postoperative GR and the measured hyperextension angles were not significantly different between the two groups. The incidence of postoperative GR was 1/32(3.12%) in Group Ⅰ and 1/144(0.69%) in Group Ⅱ(P = 0.34). The mean postoperative hyperextension angles were 2.40°± 2.19°(range: 1°-7°) for Group Ⅰ and 1.57°± 3.51°(range: 1°-6°) for Group Ⅱ(P = 0.65).CONCLUSION Medial OA of the knee and concomitant GR is not a contraindication for the mobile bearing UKA.AIM To compare clinical outcomes of patients with and without preoperative genu recurvatum(GR) following mobile bearing unicompartmental knee arthroplasty(UKA). METHODS We prospectively followed 176 patients for at least 24 mo who had been treated by unilateral, minimally invasive, Oxford UKA. Patients with medial osteoarthritis(OA) knee and preoperative GR(Group Ⅰ) accounted for 18%(n = 32) and patients without preoperative GR(Group Ⅱ) accounted for the remaining 82%(n = 144). Knee score, pain scores, and functional scores were assessed for each patient and compared between the two groups. The incidence of postoperative GRand the postoperative hyperextension angles also were recorded and analyzed. RESULTS The pain score, knee score and functional score were not significantly different between the two groups. Similarly, the incidence of postoperative GR and the measured hyperextension angles were not significantly different between the two groups. The incidence of postoperative GR was 1/32(3.12%) in Group Ⅰ and 1/144(0.69%) in Group Ⅱ(P = 0.34). The mean postoperative hyperextension angles were 2.40° ± 2.19°(range: 1°-7°) for Group Ⅰ and 1.57° ± 3.51°(range: 1°-6°) for Group Ⅱ(P = 0.65).CONCLUSION Medial OA of the knee and concomitant GR is not a contraindication for the mobile bearing UKA.

关 键 词：UNICOMPARTMENTAL KNEE GENU recurvatum Osteoarthritis HYPEREXTENSION KNEE KNEE ARTHROPLASTY Oxford KNEE 

分 类 号：R[医药卫生]