Table 2.

Indications as reported in the study used for this analysis

Recurrent instability

Multidirectional intraoperative instability (90° flexion, 20° adduction, 30° abduction, 15° rotation)

Abductor insufficiency

Neuromuscular disability

Presence of an internal fixation device

Intraoperative instability not related to component malposition

Extensive acetabular bone loss

Inability to repair the greater trochanter

Massive femoral bone loss requiring allograft or replacement

Revision following resection arthroplasty

Neuromuscular disorders (Polio residual, Guillan Barre, Hemiparesis, Senile Dementia)

Revision following periprosthetic fracture

Failed previous attempts at stabilization

Revision following hip arthrodesis

Proximal insertion deficiency

6 or more prior dislocations