Related Experiment Video
Updated: May 29, 2026
09:51
The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
Published on: September 7, 2022
Changes in pelvic tilt following total hip arthroplasty
Takashi Ishida1, Yutaka Inaba, Naomi Kobayashi
1Department of Orthopaedic Surgery, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.
Summary
Pelvic tilt often changes after total hip arthroplasty (THA). Preoperative pelvic tilt significantly influences these changes and affects 1-year function outcomes, especially in patients with anterior pelvic tilt.
Area of Science:
- Orthopedic Surgery
- Biomechanical Analysis
Background:
- Understanding pelvic tilt changes after total hip arthroplasty (THA) is crucial.
- Pelvic tilt can influence surgical outcomes and patient function post-THA.
Purpose of the Study:
- Investigate chronological pelvic tilt changes following THA.
- Correlate preoperative pelvic tilt with postoperative changes.
- Evaluate the impact of pelvic tilt changes on function and disability.
Main Methods:
- Analysis of 149 primary THA patients over a 1-year follow-up.
- Measurement of anterior pelvic plane (APP) changes pre- and post-surgery.
- Comparison of APP changes with patient demographics and functional scores.
Main Results:
- Significant correlation found between preoperative and postoperative pelvic tilt (APP).
- Patients with preoperative anterior pelvic tilt showed posterior shifts post-THA.
- Preoperative anterior pelvic tilt was associated with lower 1-year functional scores.
Conclusions:
- Pelvic tilt exhibits variable changes after THA.
- Acetabular component positioning requires careful consideration in patients with severe preoperative pelvic tilt.
- Understanding postoperative pelvic tilt dynamics can enhance THA outcomes.
