Validation of CT‐Based Three‐Dimensional Preoperative Planning in Comparison with Acetate Templating for Primary Total Hip Arthroplasty

• DOI: 10.1111/os.13298
• Publication Date: 2022-05-07T09:40:43Z
• Authors: Xi Chen; Yiou Wang; Ruichen Ma; Huiming Peng; Shibai Zhu; Shanni Li; Songlin Li; Xiying Dong; Guixing Qiu; Wenwei Qian
• Keywords: Surgical Planning

Objective This study aims to compare the accuracy of CT‐based preoperative planning with that acetate templating in predicting implant size, neck length, and cut evaluate reproducibility two methods. Methods prospective was conducted between August 2020 March 2021. Patients who underwent elective primary total hip arthroplasty by a single surgeon were assessed for eligibility. The included patients both observers after operation. Each observer twice each case. outcome measures following: (1) surgical calcar which defined as difference planned size length actual length; (2) techniques, inter‐observer intra‐observer reliability analysis; (3) influence potential confounding factors on accuracy, evaluated using generalized estimating equations. Results A 57 cases study. more accurate than cup (93% vs 79%, p < 0.001) stem 75%, 0.001). When mean absolute difference, comparison 4.28 mm 3.74 ( = 0.122) 3.05 2.93 0.731) length. In analysis, an intraclass correlation coefficient (ICC) 0.790 achieved ICC 0.966 planning. terms reliability, Observer 1 0.803 0.965 2 values 0.727 0.959 sizes, respectively. average time 6.48 ± 1.55 min 6.12 1.40 0.015). Conclusion system is has good arthroplasty.