Can preoperative magnetic resonance arthrography accurately predict intraoperative hip labral thickness?

Preoperative Magnetic Resonance Imaging Predicts Intraoperative Labral Width at the 9-O’clock and 12-O’clock Positions in Primary Hip Arthroscopy

“…9,11 The accuracy of preoperative prediction of labral size has been assessed previously, with mixed results. Hartwell et al 8 compared MRA versus intraoperative labral width measurements in 117 patients and found strong inter-rater reliability between readers in MRA-based hip labrum measurements but poor correlation between MRA and intraoperative measurements at the 3-, 12-, and 9-o'clock positions. The average intraoperative measurements were larger than the average MRA measurements at the 12-and 9-o'clock positions, but the level of significance was not reported.…”

“…Previous studies have compared MRI measurements with intraoperative measurements of the labrum; however, none have developed a method of predicting labral size intraoperatively from MRI to plan treatment based on size. 7 , 8 The purpose of this study was to determine whether preoperative MRI can reliably predict labral width in primary hip arthroscopy. It was hypothesized that labral width as determined by MRI would be reliably correlative with arthroscopic measurements in primary hip labral repairs.…”