Abstract:Objective To investigate the clinical efficacy,surgical techniques and intraoperative precautions of patellofemoral arthroplasty(PFA) for patellofemoral osteoarthritis(PFOA).Methods A retrospective analysis of 146 knees in 134 patients with PFOA treated by PFA surgery in our department from August 2013 to December 2019,including 46 males and 88 females,aged 48~73 (52.4±7.6) years old.86 cases of left knee and 60 cases of right knee were included.According to Dejour classification,there were 23 knees of Type A,49 knees of Type B,54 knees of Type C,20 knees of Type D.The course of disease was 8 to 53 (17.1±3.2) months,and the patients were evaluated by preoperative VAS score and Lysholm knee joint score.Complications such as joint infections and hematomas after the operation were followed up at 1 month,3 months,2 years,and 4 years after the operation.The front and side Xrays of the knee joint and the patella axial film were taken and recorded VAS,Lysholm scores,efficacy evaluation,and patient satisfaction were statistically analyzed.Results The average follow-up time was 17 to 53 (32.1±6.8) months.The postoperative wounds of 134 patients of 146 knees healed at grade I,with a high degree of satisfaction.The effective rate of treatment was 97.95%.The VAS score was based on the preoperative score of (8.43±1.31).It descends to (1.43±0.19) points three months after surgery,and the VAS score reached (0.13±0.02) points at the last followup.The difference was statistically significant (P<0.05).The Lysholm knee score increased from (46.08±2.08) points before surgery to (88.65±0.61) points three months after surgery,and reached (97.92±0.49) points at the last followup.The difference was statistically significant (P<0.05).During the follow-up,1 case of knee pain with tilted patella,2 cases of patellofemoral joint snapping and patellar subluxation,all the above 3 patients underwent revision surgery,1 case had lower patella after revision,and no revision was performed again.The remaining patients did not Complications such as dislocation of the patella and loosening of the prosthesis occurred.Conclusion The second-generation prosthetic PFA surgery can solve the problem of patellofemoral joint osteoarthritis.It is an effective treatment for PFOA after failure of non-surgical treatment.In clinical practice,the indications and contraindications of PFA should be strictly grasped.Grasp the correct operation points during the operation,and take active rehabilitation exercise guidance after the operation.The effect is good.The treatment method is worthy of clinical promotion.
刘思冶,荆琳,张洪美,闫奇,汤吉祥,李彦,艾奇. 髌股关节置换治疗髌股关节骨关节炎的临床研究[J]. 实用骨科杂志, 2023, 29(6): 491-.
Liu Siye,Jing Lin,Zhang Hongmei,Yan Qi,Tang Jixiang,Li Yan,Ai Qi. A Clinical Study of Patellofemoral Joint Replacement in the Treatment of Patellofemoral Joint Osteoarthritis. sygkzz, 2023, 29(6): 491-.