Changes in spinopelvic indices after hip arthroplasty and its influence on acetabular component orientation.
retrospective_cohort · Level III
Where this comes from
- Record sourced from PubMed, PMID 28794584.
- Also identified by DOI 10.1016/j.jor.2017.07.018 and PMC identifier 5545810.
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Abstract
To evaluate spinopelvic changes after hip arthroplasty in standing and ready-to-rise positions. We compared pelvic tilt, sacral slope, cobb's angle, and hip flexion on pre and postoperative spinopelvic radiographs. Standing: All postoperative indices were similar to preoperative ones except sacral slope (mean difference:1.6°, p = 0.046). Ready-to-rise: All postoperative indices were similar to preoperative ones except pelvic tilt which was significantly greater postoperatively (mean difference: 5.1°, p = 0.017). Fifteen patients showed >10° increase in pelvic tilt postoperatively. Changes in pelvic tilt in ready-to-rise position can predispose to posterior edge loading, edge wear, and dislocation; especially with inadequate cup anteversion.
Anatomy
- hip
- pelvis