Three-Dimensional Computed Tomography Reconstructions May Detect Pincer Lesions With Higher Sensitivity Than...

Area of Science:

• Orthopedic Surgery
• Radiology
• Medical Imaging

Background:

• Femoroacetabular impingement syndrome (FAIS) is a common cause of hip pain.
• Pincer lesions are a type of acetabular abnormality associated with FAIS.
• Accurate detection of pincer lesions is crucial for surgical planning in hip arthroscopy.

Purpose of the Study:

• To compare the diagnostic capability of standard radiographs (XRs) versus 3-dimensional computed tomography reconstructions (3D CTRs) in identifying pincer lesions.
• To evaluate imaging modalities for patients with FAIS undergoing hip arthroscopy.

Main Methods:

• Retrospective review of 69 patients who underwent hip arthroscopy for FAIS.
• Analysis of preoperative XRs and 3D CTRs.
• Pincer lesions defined by specific radiographic parameters (lateral center-edge angle, Tönnis angle, crossover sign, posterior wall sign, and overcoverage).

Main Results:

• 3D CTRs demonstrated significantly higher sensitivity in detecting pincer lesions compared to XRs.
• Both imaging modalities showed higher detection rates when employing comprehensive criteria versus select criteria.
• The study included a majority of female patients (69.6%) with a mean age of 33 years.

Conclusions:

• 3D CTRs offer superior diagnostic accuracy for pincer lesions in FAIS patients compared to conventional XRs.
• Advanced imaging like 3D CTRs may improve preoperative assessment and surgical outcomes for FAIS.
• Radiographic interpretation for pincer lesions should consider multiple parameters for enhanced diagnostic yield.