Thesis (Ph.D.) - Cairo University - Faculty of Medicine - Department of Orthopedic Surgery

Introduction: The acromioclavicular joint (ACJ) is the key stone between the clavicle and the acromion of the scapula. It is responsible for load transmission from upper extremity to axial skeleton. Its dislocations account for 12% of all dislocations to the shoulder girdle. It is common but usually underdiagnosed. Although many procedures have been described, there is no gold standard procedure. Patient and methods: From July 2016 to march 2018, prospective study was performed at kasr El Aini faculty of medicine, Cairo university on patients with acromioclavicular dislocation from grade III to VI. Twenty five patients included in this study met inclusion criteria (high grades ACJ dislocation (lll-VI), recent cases (<3 weeks) with no limitation of age or gender, athletes and non-athletes. One excluded due to coracoid fracture which was not apparent in x-ray. Athroscopic coracoclavicular fixation by tight rope was performed for all patients. patients are fully assessed regarding pain at the distal end of clavicle by VAS, different scores are fulfilled (constant shoulder score, oxford shoulder score and nottingham clavicle score) x-ray AP, axillary lateral and Zanca views (coraco-clavicular distance is measured immediate post-operative and after 6 months) and CT was done immediately post-operative and after 6 months to calculate coracoid tunnel dilatation and different complications were followed and managed properly

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