مريض بعد استبدال مفصل الورك الكامل بالطريقة الخلفية. أي حركة يجب تجنبها؟

After a posterior-approach total hip replacement, which movement must be avoided?

1. Walking with a frame as planned
2. Pumping the ankles up and down
3. Tightening the thigh muscles lying down
4. Hip flexion beyond 90 degrees

Answer: D) Hip flexion beyond 90 degrees. After a posterior approach, flexion beyond 90°, crossing legs and internal rotation are avoided to prevent dislocation; raised chairs and toilet seats are used.