الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The shoulder is the most mobile joint in the musclo-skeletal system. The incidence of traumatic shoulder instability has been reported to be 1.7 % in the general population . By far the most common type of glenohumeral instability is anterior dislocation, accounting for over 90 % of all shoulder dislocations. Rates are increased in men and contact athlete The Aim of this study: This study will be conducted to asses role glenoid track concept in management of glenohumeral bone defect. To evaluate the efficacy of 3D CT in application The ”glenoid track” concept to select patients with anterior recurrent shoulder instability candidates for modified Latarjet procedure. Materials and methods: The Current study included thirty-five patients suffering from anterior shoulder instability presented to outpatient clinic of hand and upper limb surgery unit at Mansoura university hospitals. Our study started from November 2016 until November 2020 with median follow up 18 months. All patients having fulfilled the inclusion and exclusion criteria scheduled for management of shoulder instability according glenoid track concept by 3D CT and confirmed by dynamic arthroscopic assessment intraoperative. Results: Recurrent dislocations were present in 35 patients with mean age at first dislocation 22.68 ± 6.35 years (range15.0 - 44.0 years). 17 patients (48.6%) ≤ 20 years old while 18 patients (51.4%) patients >20 years old with mean number of dislocations to be 10 (4 - 30) times. The time interval between recurrent episodes was found to differ from weeks to years. It was weeks in 4 (11.4%) patients, months in 23 (65.7%) patients, years in 8 (22.9%) patients. Time between first dislocations to surgery / year median range 4 (1 - 19) years.