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Clin Shoulder Elb > Volume 20(4); 2017 > Article
Clinics in Shoulder and Elbow 2017;20(4):230-235.
DOI:    Published online December 31, 2017.
Anatomical Locking Plate with Additional K-wire Fixation for Distal Clavicle Fracture
Woo Dong Nam, Sung Hoon Moon, Ki Yong Choi
Department of Orthopedic Surgery, Kangwon National University School of Medicine, Chuncheon, Korea.
Received: 20 October 2017   • Revised: 22 November 2017   • Accepted: 30 November 2017
BACKGROUND: Neer type II distal clavicle fractures have the drawback of coracoclavicular instability and insufficient distal bony fragment, thereby making it difficult to achieve adequate fixation. Although various surgical treatments have been described for Neer type II fracture, the optimal treatment remains controversial. This study reports the clinical results and usefulness of anatomical locking plate with additional K-wire fixation.
A totally of 21 patients with type II distal clavicle fracture were included in the study. The surgical procedure reduced the fracture temporarily; it included insertion of one or two K-wire from the lateral margin of the distal fragment to the proximal fragment through the fracture site, followed by application and fixation of the locking plate. The bony union and migration of K-wire was evaluated in the follow-up radiography. The coracoclavicular distance and acromioclavicular joint arthrosis were assessed at the final follow-up. The Constant Score (CS) and Korean Shoulder Score (KSS) were evaluated for clinical scoring.
Bone union was achieved in all cases. At the final follow-up, coracoclavicular distance of the injured shoulder was increased, as compared to the intact shoulder (p=0.002), with no accompanying clinical symptoms. No K-wire migration was observed. At the final follow-up, K-wire irritation was observed in two cases and acromioclavicular arthrosis in one case, with no other adverse effects. Pain visual analogue scale, CS, and KSS were improved in all cases.
The method of anatomical locking plate with additional K-wire fixation could be useful in achieving beneficial clinical results.
Key Words: Type II distal clavicle fracture; Anatomical locking plate; K-wire; Coracoclavicular ligament; Acromioclavicular joint


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