ZedMotion Case Study: Predicting Range of Motion After Total Hip Arthroplasty
Objective
In total hip arthroplasty, predict postoperative joint range of motion before surgery to evaluate dislocation risk.
Subjects
- Cases: 14 cases, 14 joints
- Sex: 5 male, 9 female
- Surgical approach: THA via posterolateral approach
Evaluation Items
- Joint ROM in flexion and internal rotation
- Relationship between implant placement angle and dislocation risk
- Comparison of preoperative predictions with postoperative measurements
Results
High-risk dislocation positions were identified preoperatively and reflected in fine adjustments to the implant placement angle.
Discussion
Preoperative ROM simulation enabled fine-tuning of the implant placement angle and was considered to contribute to reducing dislocation risk.