A new measurement method of offset in total hip arthroplasty

• Published in: Zhongguo xiu fu chong jian wai ke za zhi Vol. 36; no. 4; pp. 425 - 430
• Main Authors: Qu, Wanming, Zhou, Hongbin, Tian, Peng, Qin, Xiaorong, Zhang, You, Shen, Wenbin
• Format: Journal Article
• Language: Chinese
• Published: China 15.04.2022
• Subjects: Arthroplasty, Replacement, Hip - methods; Humans; Leg Length Inequality; Reproducibility of Results; Retrospective Studies; Treatment Outcome; greater trochanter offset; Total hip arthroplasty; global offset
• ISSN: 1002-1892
• DOI: 10.7507/1002-1892.202109064

To report a new offset parameter for total hip arthroplasty (THA)-greater trochanter offset (GTO), and analyze the effectiveness and feasibility of this parameter based on clinical data. The 47 patients who met the selection criteria and admitted between January 2016 and May 2020 were selected as the research object. The global offset (GO) was used as the offset parameter in preoperative design. Firstly, the test-retest reliability and inter-rater reliability of GTO were analyzed based on pelvic X-ray films. The GTO reconstruction was defined as the difference between the operative side and the healthy side within ±5 mm, and 47 patients were divided into the reconstruction group and the non-reconstruction group. General data (age, gender, type and side of fracture, the interval between injury and operation), visual analogue scale (VAS) score, Harris score, gait score, and leg length discrepancy (LLD) were recorded and compared between two groups. Then, the GTO was used as the offset parameter in preoperative