Effect of Capsulotomy on Hip Stability—A Consideration During Hip Arthroscopy : The American Journal of Orthopedics

Effect of Capsulotomy on Hip Stability—A Consideration During Hip Arthroscopy : The American Journal of Orthopedics

Effect of Capsulotomy on Hip Stability—A Consideration During Hip Arthroscopy

We conducted a study to further understand the effect of capsulotomy on hip joint stability using an in vitro cadaver model. Thirteen fresh-frozen cadaveric hip specimens were subjected to an external rotation torque of 0.588 Nm. The experimental kinematics, post-process translation, and rotation data for each specimen were tested under 4 conditions: neutral flexion with capsule intact; neutral flexion with transverse capsulotomy; maximum flexion with capsule intact; and maximum flexion with transverse capsulotomy. A segmented 3-dimensional model of the femur was used to evaluate femoral head translation after application of external rotation torque.