The "3-Pack" Examination Is Critical for Comprehensive Evaluation of the Biceps-Labrum Complex and the Bicipital Tunnel: A Prospective Study.

Purpose: To determine the diagnostic value of the 3-Pack examination for biceps-labrum complex (BLC) disease, assess interobserver reliability, and generate an evidence-based diagnostic and therapeutic algorithm.

Methods: A total of 145 consecutive patients were enrolled in this prospective comparative study. The study included 116 chronically symptomatic patients indicated for arthroscopic subdeltoid transfer of the long head of the biceps tendon to the conjoint tendon and 29 asymptomatic comparison subjects.