Quantifying Surgeon Intuition Using a Judgment Analysis Model: Surgeon Accuracy of Predicting Patient-Reported Outcomes in Patients Undergoing Hip Arthroscopy for Femoroacetabular Impingement Is Moderate at Best.

Purpose: To quantify surgeon intuition, determine whether a surgeon's prediction of outcomes after hip arthroscopy correlates with actual patient-reported outcomes (PRO), and identify differences in clinical judgment between expert and novice examiners.
Methods: This prospective, longitudinal study was conducted at an academic medical center on adults undergoing primary hip arthroscopy for treatment of femoroacetabular impingement. A Surgeon Intuition and Prediction (SIP) score was completed preoperatively by an attending surgeon (expert) and physician assistant (novice). Baseline and postoperative outcome measures included legacy hip scores (e.g., Modified Harris Hip score) and Patient-Reported Outcomes Information System tools. Mean differences were assessed using t -tests. Generalized estimating equations assessed longitudinal changes. Pearson correlation coefficients (r) evaluated associations between SIP score and PRO scores.
Results: Data from 98 patients (mean age 36 years, 67% female) with complete data sets at 12-month follow-up were analyzed. Weak-to-moderate strength correlations were seen between SIP score and PRO scores (r = 0.36 to r = 0.53) for pain, activity and physical function. Significant improvements were seen in all primary outcome measures at 6 and 12 months postoperatively when compared to baseline scores ( P < .05), with about 50% to 80% of patients achieving the minimum clinically important difference and patient acceptable symptomatic state thresholds postoperatively.
Conclusions: An experienced, high-volume hip arthroscopist had only weak-to-moderate ability to intuitively predict PRO. Surgical intuition and judgment were not superior in an expert examiner compared to a novice.
Level of Evidence: Level III, retrospective comparative prognostic trial.