Ischiofemoral impingement syndrome: a meta-analysis

Area of Science:

• Radiology
• Orthopedics
• Medical Imaging

Background:

• Ischiofemoral impingement (IFI) is a recognized cause of hip pain.
• Accurate diagnosis is crucial for effective management.

Purpose of the Study:

• To review imaging features of ischiofemoral impingement (IFI).
• To establish diagnostic measurement thresholds for IFI using meta-analysis.
• To increase awareness of IFI among healthcare professionals.

Main Methods:

• Systematic literature search for studies on ischiofemoral impingement and quadratus femoris MRI.
• Meta-analysis of hip MRIs from included studies and institutional database.
• Determination of optimal thresholds for ischiofemoral space (IFS) and quadratus femoris space (QFS).

Main Results:

• Ischiofemoral impingement (IFI) cases demonstrated significantly smaller IFS and QFS compared to controls.
• A cutoff of ≤ 15 mm for IFS showed 76.9% sensitivity and 81.0% specificity.
• A cutoff of ≤ 10.0 mm for QFS yielded 78.7% sensitivity and 74.1% specificity.

Conclusions:

• Ischiofemoral impingement (IFI) is a treatable cause of hip pain.
• MRI with proposed measurement thresholds aids in accurate IFI diagnosis.
• Establishing diagnostic criteria can guide optimal treatment strategies.