The Study On The Long-term Effect Of LPS NexGen In High Flexion Knee Prosthesis Replacement

Objective After used the common knee prosthesis in TKA,the knee range of security activities from 100 to 110 DEG were be used, it is including kneeling and squatting high flexion, it must be used a high flexion prosthesis design. Our study aimed to investigate the long-term effect of LPS Nex Gen high flexion total knee prosthesis replacement in the design of knee joint with high flexion.Methods: A retrospective analysis of 106 cases of our hospital(120 knees) received Nex Gen LPS high flexion type artificial total knee arthroplasty 8-11 years of patient related data, including preoperative and postoperative measurement of knee flexion, and according to the KSS knee joint in score system.Results: Followed up 106 cases(120 knees), with an average follow-up time of(123.5±3.2) months(96 ~ 134 months), preoperative KSS knee scoring average on(46.3±15.6)points, functional score an average of(49.5±18.6)points, postoperative follow-up knee score average on(92.7±6.1), function score average of(81.6±17.8)points, preoperative knee flexion degree < 90 degrees, 90 degrees- 100 degrees, 100 degrees of three groups of patients with postoperative flexion increased by an average of(37.6°±7.2°),(25.8°±1.9°)?(6.9°±2.1°), 1 case had a aseptic loosening, 1 case had a infection.Conclusion: Nex Gen LPS high flexion knee prosthesis by improving the design of the theory can achieve high flexion, but the knee prosthesis replacement after buckling degree preoperative flexion and influenced by many factors, patients with preoperative activity less benefit from greater, and has a lower rate of prosthesis loosening, infection and other complication, postoperative overall and long-term clinical with a effect satisfaction.