Preoperative Gluteal Muscle Atrophy: A Silent Predictor of THA Dislocation.

Centre Hospitalier Universitaire de Nīmes

Status: Completed

Conditions: Total Hip Arthroplasty; Dislocation; Muscle Degeneration

Treatments: Diagnostic Test: No dislocation; Diagnostic Test: Dislocation

Study type: Observational

Funder types: Other

Identifiers

NCT06571604

THAdislocation glutealatrophy

Details and patient eligibility

About

This study looks at how fat buildup in hip muscles relates to hip osteoarthritis and less favorable recovery after hip replacement surgery. While it is known that weak gluteal muscles might cause problems, it is not yet proven if this specifically leads to hip dislocation after surgery. The goal of this study is to compare fat buildup in gluteal muscles between patients who had a hip dislocation soon after surgery and those who did not.

Enrollment: 72 patients

Sex: All

Volunteers: No Healthy Volunteers

Inclusion criteria

• primary THA with preoperative CT-scan

Exclusion criteria

• malposition of acetabular implants outside the Lewinneck safe zone,
• neurological or cognitive disorders,
• associated spinal pathologies (within the context of a hip-spine syndrome),
• chronic alcoholism,
• aseptic osteonecrosis,
• revision surgeries,
• late dislocations attributed to polyethylene wear,
• replacement following post-traumatic coxarthrosis due to acetabulum injuries.
• diameters of the prosthetic heads ≠ 32mm

Trial design

72 participants in 2 patient groups

Dislocation group

Description:

Patients who underwent primary total hip arthroplasty with preoperative CT-scan and encountered an episode of dislocation.

Treatment:

Diagnostic Test: Dislocation

Control group

Description:

Patients underwent primary total hip arthroplasty with preoperative CT-scan, who did not experience any episodes of dislocation within two years post-surgery, adhering to the previously outlined exclusion criteria (group control).

Treatment:

Diagnostic Test: No dislocation