| Objective To compare the early postoperative clinical experience of patients with medial compartment osteoarthritis of the knee who underwent fixed bearing -type unicompartmental knee arthroplasty and posterior cruciate ligament retaining -type total knee arthroplasty. Methods From January 2016 to May 2020, 93 cases of medial knee arthritis in the First Affiliated Hospital of Anhui University of Chinese Medicine were selected as the research objects and were divided into group A with 41 cases and group B with 52 cases by number random table method. Group A underwent fixed-bearing UKA, and group B underwent posterior cruciate ligament retaining type TKA. The perioperative indicators of the two groups were compared, such as the visual analogue of pain (VAS) score at rest, the knee joint score of the State Hospital of Special Surgery(HSS), and the knee flexion and extension. Results The operation time of group A was (48.63±10.23) min, the surgical incision length was (7.63±2.42) cm, the intraoperative blood loss was (53.62±8.30) mL, the postoperative drainage volume was (80.80±10.68) mL, which were lower than those of group B (P<0.05). There was no significant difference in VAS score and knee HSS score at rest between the two groups before surgery (P>0.05). The VAS score at rest 3 d, 7 d and 14 d after operation in group A was lower than that of group B (P<0.05), group A Knee HSS scores were higher than those of group B 1 week, 1 month, 3 months, and 6 months after operation (P<0.05). After operation, the patients in group A walked down the ground with weight for 1 min, (3.63±1.51) d, flexion time was (6.72±1.65)d, the maximum knee extension was (1.43±0.13)°, and the maximum knee flexion was (110.52±9.67)°, which were better than those of group B(P<0.05). Conclusions Both fixed-bearing UKA and posterior cruciate ligament retaining type TKA can effectively treat medial knee osteoarthritis, but the early postoperative experience of fixed-bearing UKA surgery is better. |
