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Clin Shoulder Elbow > Volume 19(1); 2016 > Article
Clinics in Shoulder and Elbow 2016;19(1):25-32.
DOI:    Published online March 31, 2016.
A Novel Fluoroscopic View for Positioning the AO Clavicle Hook Plate Decreases Its Associated in situ Complications
Yoon Suk Hyun, Gab Lae Kim, Sang Min Choi, Woo Jin Shin, Dong Yeon Seo
Department of Orthopaedic Surgery, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.
Received: 4 October 2015   • Revised: 21 December 2015   • Accepted: 26 December 2015
BACKGROUND: The goal of this study was to evaluate whether a modified fluoroscopic technique for positioning a hook plate affected the clinical results of treating Neer type II distal clavicle fractures and Rockwood type V acromioclavicular (AC) joint separations with this device.
The study was a retrospective consecutive case series with data analysis. Sixty-four patients with a Neer type II distal clavicle fracture or a Rockwood type V AC joint injury treated between March 2009 and June 2013 were divided into 2 groups: traditional fluoroscopic technique (traditional view, 31 patients) or modified fluoroscopic technique ('hook' view, 33 patients). A visual analogue scale (VAS) score, the modified University of California-Los Angeles (UCLA) shoulder scale score, and radiographic osteolysis were the main outcome measures.
The traditional group included a significantly larger number of patients with acromial osteolysis than the hook view group: 23 patients (74.2%) vs. 11 patients (33.3%), respectively (p=0.01). Before plate removal, the hook group reported less pain and higher UCLA shoulder scale scores than the traditional group: average VAS score, 1.55 vs. 2.26, respectively; average UCLA score, 30.88 vs. 27.06, respectively. However, there was no significant difference after plate removal.
The hook view allows more accurate bending of the hook plate around the contour of the acromion, resulting in decreased osteolysis, decreased pain, and better function with the plate in situ.
Key Words: Shoulder; Acromioclavicular joint; Fracture; Dislocation; Fixation
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