الفهرس 
ACKNOWLEDGEMENT
Radiographic EvaluationOnly 14 pages are availabe for public view
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Abstract
Summary:
Arthroscopic Bankart repairs are now widely used to treat patients with traumatic unidirectional anterior shoulder instability. However, several studies have shown an increased failure rate after arthroscopic stabilization when bony defects were not addressed during surgery .
With arthroscopy as a standard of reference, MR imaging assessment, particularly with use of glenoid width, is almost as accurate as CT assessment. In most cases, MR imaging can replace CT in the assessment of glenoid bone loss In this study, a radiographic review was performed of 62patients with shoulder instability and associated Hill-Sachs lesions. The glenoid track was measured using MRA Images and CT , and large bipolar humeral and glenoid lesions were considered outside the glenoid track while smaller lesions were classified as inside the track under anesthesia .preoperative glenoid and humeral bone loss measurements can be effectively used to predict the risk for glenohumeral engagement and potentially be indicative of future instability. This may be helpful for surgical decision making, particularly when considering bony augmentation procedures.
The glenoid track is a new classification system that can be utilized to assess the risk of engagement of a Hill-Sachs lesion in a patient with anterior shoulder instability, and this study provides data about how to apply the glenoid track concept clinically. Hill-Sachs injuries are common in shoulder instability, and one should look closely at the extent of glenoid bone loss in addition to the size of the Hill-Sachs lesion to more completely assess the potential for glenohumeral engagement. Arthroscopic Bankart repair combined with remplissage is effective in treating anterior shoulder instability with engaging Hill-Sachs lesion. The overall failure rate was5%. A supplementary Hill- Sachs remplissage technique will not cause significant restriction in the range of motion or impairment of the function of the infraspinatus.