Accuracy of intra-articular glenohumeral injections: the anterosuperior technique with arthroscopic documentation.

Purpose: Our objective was to assess the accuracy rate of needle placement with the anterosuperior technique of glenohumeral joint injection that uses familiar palpable superficial landmarks as a guide instead of diagnostic imaging.

Methods: Between April 2007 and October 2007 at our institution, 42 patients met the study inclusion criteria of being aged 18 years or older and undergoing shoulder arthroscopy. For the injection (performed by 1 surgeon), anesthetized patients were placed in the beach-chair position with the arm in adduction and internal rotation.