0 Item(s)
Management of Fracture of the Greater Trochanter or Deficiency of the Abductor Mechanism After Total Hip Arthroplasty
The abductor mechanism, which consists of the primary and accessory muscles of abduction, is integral to gait and overall hip stability. This mechanism counterbalances lateral tilt during the single-leg stance, maintaining the upright position of the trunk. Deficiency of the abductor mechanism can result in a Trendelenburg gait and substantial patient morbidity. Studies report that the rate of abductor tears or avulsions after total hip arthroplasty may be as high as 50% with lateral or anterolateral approaches. These tears or avulsions negatively affect patient function and satisfaction but often remain undiagnosed. This chapter reviews the clinical presentation, diagnosis, and surgical management of patients with abductor mechanism deficiency after total hip arthroplasty. Indications and contraindications, outcomes, steps for successful surgery, and tips for avoiding pitfalls and complications are also presented.