Atrophy of the brachialis muscle after a displaced clavicle fracture in an Ironman triathlete: case report

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Abstract

Clavicle fractures are frequent injuries in athletes and midshaft clavicle fractures in particular are well-known injuries in Ironman triathletes. In 2000, Auzou et al. described the mechanism leading to an isolated truncular paralysis of the musculocutaneous nerve after a shoulder trauma. It is well-known that nerve palsies can lead to an atrophy of the associated muscle if they persist for months or even longer. In this case report we describe a new case of an Ironman triathlete suffering from a persistent isolated atrophy of the brachialis muscle. The atrophy occurred following a displaced midshaft clavicle fracture acquiring while falling off his bike after hitting a duck during a competition.

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Most cited references 14

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Treatment of acute midshaft clavicle fractures: systematic review of 2144 fractures: on behalf of the Evidence-Based Orthopaedic Trauma Working Group.

Boris A Zelle, Marc McKee, Michael Zlowodzki … (2005)

Fractures of the clavicle were reported to represent 2.6% of all fractures with an overall incidence of 64 per 100,000 per year (1987, Malmö, Sweden). Midshaft fractures account for approximately 69% to 81% of all clavicle fractures. Treatment options for acute midshaft clavicle fractures include nonoperative treatment (mostly sling or figure-of-eight bandage), open reduction and internal fixation with plates, and closed or open reduction and internal fixation with intramedullary pins, wires, or a nail. Most surgeons prefer nonoperative treatment of nondisplaced midshaft clavicle fractures. However, the optimal treatment option for isolated acute displaced midshaft clavicle fractures remains controversial. This study was designed to systematically summarize and compare results of different treatment options (nonoperative, operative extramedullary fixation, and operative intramedullary fixation) in the management of midshaft clavicle fractures, specifically for displaced fractures.

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Nonoperative treatment compared with plate fixation of displaced midshaft clavicular fractures. A multicenter, randomized clinical trial.

(2006)

Recent studies have shown a high prevalence of symptomatic malunion and nonunion after nonoperative treatment of displaced midshaft clavicular fractures. We sought to compare patient-oriented outcome and complication rates following nonoperative treatment and those after plate fixation of displaced midshaft clavicular fractures. In a multicenter, prospective clinical trial, 132 patients with a displaced midshaft fracture of the clavicle were randomized (by sealed envelope) to either operative treatment with plate fixation (sixty-seven patients) or nonoperative treatment with a sling (sixty-five patients). Outcome analysis included standard clinical follow-up and the Constant shoulder score, the Disability of the Arm, Shoulder and Hand (DASH) score, and plain radiographs. One hundred and eleven patients (sixty-two managed operatively and forty-nine managed nonoperatively) completed one year of follow-up. There were no differences between the two groups with respect to patient demographics, mechanism of injury, associated injuries, Injury Severity Score, or fracture pattern. Constant shoulder scores and DASH scores were significantly improved in the operative fixation group at all time-points (p = 0.001 and p < 0.01, respectively). The mean time to radiographic union was 28.4 weeks in the non-operative group compared with 16.4 weeks in the operative group (p = 0.001). There were two nonunions in the operative group compared with seven in the nonoperative group (p = 0.042). Symptomatic malunion developed in nine patients in the nonoperative group and in none in the operative group (p = 0.001). Most complications in the operative group were hardware-related (five patients had local irritation and/or prominence of the hardware, three had a wound infection, and one had mechanical failure). At one year after the injury, the patients in the operative group were more likely to be satisfied with the appearance of the shoulder (p = 0.001) and with the shoulder in general (p = 0.002) than were those in the nonoperative group. Operative fixation of a displaced fracture of the clavicular shaft results in improved functional outcome and a lower rate of malunion and nonunion compared with nonoperative treatment at one year of follow-up. Hardware removal remains the most common reason for repeat intervention in the operative group. This study supports primary plate fixation of completely displaced midshaft clavicular fractures in active adult patients.

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Injury to the brachial plexus by a fragment of bone after fracture of the clavicle.

B Berg, O Delaere, Elwin W. J. C. Rombouts … (1997)

Clavicular fractures are occasionally responsible for lesions of the brachial plexus. The symptoms are usually delayed and due to compression by hypertrophic callus, nonunion or a subclavian pseudoaneurysm. We describe a patient in whom a displaced bone fragment was pressing on the retroclavicular part of the brachial plexus, leading to early symptoms of a lesion of the posterior cord. Internal fixation of the clavicle and external neurolysis of the brachial plexus gave an almost full recovery.

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Author and article information

Journal

Journal ID (nlm-ta): J Brachial Plex Peripher Nerve Inj

Title: Journal of Brachial Plexus and Peripheral Nerve Injury

Publisher: BioMed Central

ISSN (Electronic): 1749-7221

Publication date Collection: 2011

Publication date (Electronic): 2 October 2011

Volume: 6

Page: 7

Affiliations

[1 ]Institute of General Practice and Health Services Research, University of Zurich, Pestalozzistrasse 24, CH-8091 Zurich, Switzerland

[2 ]Gesundheitszentrum St. Gallen, Vadianstrasse 26, CH-9000 St. Gallen, Switzerland

Article

Publisher ID: 1749-7221-6-7

DOI: 10.1186/1749-7221-6-7

PMC ID: 3201889

PubMed ID: 21961883

SO-VID: de560bf2-7499-460f-93d5-b50785611089

License:

This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

History

Date received : 7 July 2011

Date accepted : 2 October 2011

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