Coracoid Tunnel Widening After ACJ Tight Rope Fixation

Abstract Purpose: To detect coracoid tunnel widening after arthroscopic fixation of acute acromioclavicular joint (ACJ) dislocation using TightRope system and its correlation with loss of reduction and the functional scores. Methods: From July 2016 to Dec 2018, a prospective study was performed at our hospital. Twenty-three patients with acute grade III-V ACJ dislocation were included in the study. Arthroscopic double tight-rope repair of the ACJ was performed. Coracoid tunnel widening was measured by computed tomography (CT) and coraco-clavicular distance was measured on the x-ray immediately post-operative and at 12 months. Constant Shoulder Score, Oxford Shoulder Score, Nottingham Clavicle Score and Visual analogue scale were used as outcome measures at 12 months. Level of evidence IV Keywords Acute acromioclavicular joint injury . TightRope . Coracoid tunnel dilatation. Loss of reduction.