Does the Upward Migration Index Predict Function and Quality of Life in Arthroscopic Rotator Cuff Repair?

摘要

Background Although upward humeral head migration is a well-recognized phenomenon in patients with tears of the cuff, it is unclear whether it relates to patient function after cuff repair. The upward migration index (UMI) assesses proximal migration of the humeral head while controlling for patients’ bony morphologic features.