High variability in pelvic orientation in the lateral decubitus position negatively affects acetabular component placement

IF 1.5 Q3 ORTHOPEDICS

Journal of orthopaedics Pub Date : 2025-03-17 DOI:10.1016/j.jor.2025.03.041

Daniel J. Sherwood , Hemant Reddy , Xiuyi A. Yang , Yoav Zvi , Zeynep Seref-Ferlengez , Yonatan Schwartz , Anna Tarasova , Eli Kamara

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引用次数: 0

Abstract

Purpose

Determine factors that impart increased risk of acetabular component malposition in the lateral decubitus position.

Methods

A retrospective review of 813 X-rays from posterior THA procedures at a single institution. Pelvic tilt and rotation were measured on preoperative standing AP-pelvis and intraoperative cross-table x-rays. Proper intraoperative pelvic orientation (PPO) was defined as vertical tilt and axial rotation within ± 15° of the preoperative standing pelvis orientation. Acetabular abduction was measured on standing postoperative x-rays with Goal abduction (GA) of 30–50°.

Results

PPO was obtained in 284/413 cases (69 %). Patient sex, weight, BMI, and operative laterality were not significantly associated with PPO. Patients with PPO were shorter (1.68m vs 1.72m, p < 0.01). PPO occurred in 168/221 patients (76 %) with the Capello or Wixson hip positioner, compared to 116/192 (60 %) with the De Mayo positioner (p < 0.01). GA was obtained in 249/284 (88 %) of patients with PPO, as compared to 103/129 (80 %) patients without PPO.

Conclusion

The risk of pelvic malpositioning significantly increases with the use of certain hip positioning systems, and taller patients. Acetabular component abduction is negatively affected by an improperly positioned pelvis.

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来源期刊

Journal of orthopaedics ORTHOPEDICS-

CiteScore

3.50

自引率

6.70%

发文量

202

审稿时长

56 days

期刊介绍： Journal of Orthopaedics aims to be a leading journal in orthopaedics and contribute towards the improvement of quality of orthopedic health care. The journal publishes original research work and review articles related to different aspects of orthopaedics including Arthroplasty, Arthroscopy, Sports Medicine, Trauma, Spine and Spinal deformities, Pediatric orthopaedics, limb reconstruction procedures, hand surgery, and orthopaedic oncology. It also publishes articles on continuing education, health-related information, case reports and letters to the editor. It is requested to note that the journal has an international readership and all submissions should be aimed at specifying something about the setting in which the work was conducted. Authors must also provide any specific reasons for the research and also provide an elaborate description of the results.