Microfracture in the hip: a matched-control study with average 3-year follow-up

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Regenerative Medicine

Background:

• Limited literature exists on microfracture surgery outcomes for hip conditions.
• Hip arthroscopy is commonly performed for labral tears, often with associated chondral damage.
• Microfracture aims to stimulate cartilage repair in focal full-thickness chondral defects.

Purpose of the Study:

• To compare patient-reported outcomes (PROs) after hip arthroscopy with microfracture versus a control group without chondral defects.
• To evaluate the efficacy of microfracture surgery in patients with focal full-thickness chondral damage during labral tear repair.

Main Methods:

• A prospective matched-control study involving 35 patients undergoing hip arthroscopy with microfracture and 70 controls.
• Patients were matched based on demographics, injury factors, and surgical details.
• Four PRO scores (mHHS, non-arthritic hip score, HOS-ADL, HOS-SSS) and VAS were assessed pre- and post-operatively (minimum 2 years).

Main Results:

• Both groups showed significant improvements in PROs post-surgery.
• No significant differences in most PROs were found between the microfracture and control groups.
• The control group demonstrated superior outcomes in Hip Outcome Score-Activities of Daily Living (HOS-ADL) and visual analog scale (VAS) scores.

Conclusions:

• Arthroscopic microfracture for hip labral tears with chondral defects results in favorable outcomes.
• Outcomes are comparable to hip arthroscopy for labral tears without full-thickness chondral damage.
• Microfracture appears to be an effective adjunct treatment for focal chondral defects in hip arthroscopy.