Poster 193: Glenoid Bone Loss Evaluation: Utilization of Current Methods

Objectives: Preoperative evaluation of glenoid bone loss is essential in surgical planning and for patients’ expectations their outcome. The four literature backed methods measuring include the chord method, percent diameter intraoperative probe Pico method. Using it has been suggested that 25% inferior may be threshold significant loss. In contrast, other studies show using above 13.5-17.3% associated with significantly worse clinical outcomes. Differences measurements method utilization can lead orthopedic surgeons to proceeding soft-tissue stabilization a high-risk patient or alternatively an unnecessary osseous augmentation procedure. Therefore, important understand how measure While 3D CT have previously described as gold standard highest accuracy interobserver reliability, unclear most evaluate practice. purpose this study investigate Methods: Based on existing literature, 16-question survey was created by senior author. This included questions investigating participants’ demographic information, typical practice volume, identification sent out members American Orthopedic Society Sports Medicine (AOSSM) Arthroscopy Association North America (AANA). Results: One-hundred-seventy-two responded average 13.4 years number instability surgeries performed each year 31.2 +/- 35. regard subspecialty, 137 participants completed sports medicine fellowship, 18 shoulder elbow 10 both 1 pediatric trauma fellowship (97% response rate). Responders were from variety geographic locations: 26% Northeast, 30% Midwest, 21% South, 10% Mountain States, West Coast, Hawaii, Alaska, Columbia, practiced Italy (98% 46% responders belong private practice, while 34% at academic institution. An additional 16% reported hospital- based 2% military affiliation, work affiliations (99% 91.3% said they routinely imaging modality commonly used (125), followed 2D MRI (86), X-rays (68), (60), (11) (Figure 1). frequency common analyzed: routinely, length occasionally, rarely, never 2). There no effect time location, training methods. Those medical group setting had higher Conclusions: result suggests there inconsistency instability. physicians use reliable (3D CT), accurate evaluating (Pico method) seldom used. Future research necessary limiting factor incorporate validated into develop new automated improve overall utilization.