Table 1: Factors affecting risk of dislocation following a hip hemiarthroplasty.

Patient Surgeon Surgical
Neurological impairment (stroke) Surgeon volume (not seniority) Time to surgery – theatre availability
Muscle weakness (Parkinson’s) Soft tissue tensioning Surgical approach
Previous failed internal fixation of hip Implant positioning Capsular repair
Hip dysplasia (decreased CEA/offset) - -
Male gender (related to CEA) - -
Time to surgery – need for preoperative optimisation - -