Spatiotemporal parameters of the operated and non-operated knees before and after unilateral total knee arthroplasty

BackgroundKnee osteoarthritis is a common condition in various orthopedic clinics and hospitals. The aim of this study was to investigate the effects of unilateral total knee arthroplasty (TKA) application on short and long-term spatiotemporal gait parameters, maximum plantar pressure (MPP), and functional status in patients with knee osteoarthritis.Research questionWhat is the change process in spatiotemporal parameters without any intervention before and after TKA surgery?MethodsThis study is a prospective and cross-sectional study. Participants were assessed preoperatively at the 1st week (Pre1W), postoperative 1st month (Post1M) and 6th month (Post6M). Spatiotemporal parameters and MMP were assessed using the Win Track platform (Medicapteurs Technology, France) and functional states were assessed using the Western Ontario and McMaster Universities Arthritis Index (WOMAC) and the Lequesne Index.ResultsSignificant improvements were found in the WOMAC and Lequesne Index values in the Post1M and Post6M periods compared to the preoperative period. However, the improvement in WOMAC and Lequesne Index scores in the Post6M period was significant compared to the scores in the Post1M period (p < 0.01). Spatiotemporal parameters deteriorated in the Post1M period, while improvements were observed in the Post6M period. We observed that patients had worse gait parameters in the near postoperative period than before surgery. It was the period with the greatest improvements in long-term outcomes.SignificanceIn the light of our study results, we think that early gait disturbances in patients who underwent direct TKA may be caused by physiological processes. Therefore, we believe that there is no need for any intervention for gait disorders that occur in the early postoperative period.     

CT引导下置入螺钉治疗骶髂关节脱位

目的:探讨CT引导下置入螺钉治疗骶髂关节脱位的方法。方法:选择旋转垂直不稳定的典型C型(Tile分型)骨盆骨折12例,行CT扫描定位第一骶椎,后在CT引导下置入导针,根据CT测量和导针置入长度选择适合长度的半螺纹松质骨螺钉拧入,在CT扫描下可见患侧骶髂关节逐步合拢,最后复位。结果:12例骶髂关节均复位,10例获得随访,时间8~15个月,按疗效评定标准,优7例,良2例,可1例。患者功能恢复良好。结论:该方法为采取微创技术进行骨折治疗提供了新思路,手术操作简单、出血少、损伤少、固定牢靠。