Hip Dislocation or Subluxation After Hip Arthroscopy: A Systematic Review.

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Hip Arthroscopy

Background:

• Hip arthroscopy is a common procedure for various hip conditions.
• Postoperative hip instability, including dislocation or subluxation, is a rare but serious complication.
• Understanding the risk factors and characteristics of these events is crucial for prevention and management.

Purpose of the Study:

• To identify patient- and surgery-specific factors associated with postarthroscopic hip dislocation or subluxation.
• To analyze the characteristics, mechanisms, and outcomes of hip instability following arthroscopy.

Main Methods:

• Systematic review of Level I-IV clinical outcome studies.
• Inclusion of studies reporting hip dislocation or subluxation after hip arthroscopy.
• Extraction of patient- and surgery-specific variables, including osseous morphology, labral and capsular management, and instability details.

Main Results:

• Analysis of 11 patients from 10 articles; 9 dislocations and 2 subluxations.
• Anterior dislocation was most common (8 cases), often associated with acetabular undercoverage (5 cases).
• Contributing factors included labral debridement (5 cases), iliopsoas tenotomy (3 cases), and capsular insufficiency.

Conclusions:

• Postarthroscopic hip instability is associated with acetabular undercoverage, labral debridement, capsular insufficiency, or iliopsoas tenotomy.
• Anterior dislocations typically occur during hip extension and external rotation.
• Management varied, with closed reduction, total hip arthroplasty, or revision capsulorrhaphy required.