central dislocation of the hip

Last reviewed 01/2018

In this condition the femoral head does not come out of its socket and therefore it is not a true dislocation. In this injury the femoral head is forced through the medial wall of the acetabulum and into the pelvis.

On x-ray the acetabular floor is shattered and comminuted. The injury may have occurred with sufficient force to split the acetabulum and this may result in a large segment of bone being displaced medially.

An attempt is made at reducing the dislocation. Strong traction is applied, and this, if successful, is maintained for 4-6 weeks.

Secondary arthritis may occur in this condition. If this occurs in a very young person then arthrodesis may be necessary. The development of secondary arthritis in an older person may necessitate arthroplasty.