alexa Supraspinatus Unusual Atrophy Pattern: A Case Report
ISSN: 2167-1222

Journal of Trauma & Treatment
Open Access

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Case Report

Supraspinatus Unusual Atrophy Pattern: A Case Report

Diogo Cardoso1, Sana Boudabbous2, Emilie Paulin3 and Gregory Cunningham1*
1Department of Surgery, Geneva University Hospitals, Geneva, Switzerland
2Radiology Department, Geneva University Hospitals, Geneva, Switzerland
3Radiology Department, Neuchatêl-Pourtalès Hospital, Neuchatêl, Switzerland
*Corresponding Author : Gregory Cunningham
Department of Surgery
Division of Orthopaedics and Trauma Surgery
Geneva University Hospitals
Rue Gabrielle-Perret-Gentil 4
1205 Geneva, Switzerland
Tel: +41223727814 E-mail: [email protected]
Received: February 18, 2016 Accepted: March 21, 2016 Published: March 23, 2016
Citation: Cardoso D, Boudabbous S, Paulin E, Cunningham G (2016) Supraspinatus Unusual Atrophy Pattern: A Case Report. J Trauma Treat 5:296. doi:10.4172/2167-1222.1000296
Copyright: © 2016 Tiwari M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
 

Abstract

We present the case of an unusual atrophy pattern of the supraspinatus muscle subsequent to suprascapular nerve compression by a paralabral cyst located in the spinoglenoid notch. A 58-year-old right-handed manual female worker presented to a specialized shoulder consultation with severe progressive pain in her right shoulder. Clinical exam revealed isolated limitation in active abduction and a painful Jobe test. MR-arthrogram showed a 12 × 10 mm paralabral cyst consecutive to a superior labral anterior to posterior (SLAP) II lesion, associated with an isolated supraspinatus Thomazeau stage II atrophy and Goutallier stage II fatty infiltration. A rotator cuff tear was excluded. After a failed nonoperative management, the patient underwent arthroscopic cyst decompression, SLAP debridement and biceps tenodesis, and presented satisfactory pain relief at 12 months follow-up with a constant score of 76 points. A control MR-arthrogram showed no recurrence of the cyst with regression of atrophy to stage I. In addition to confirm the known association between SLAP lesions and paralabral cysts, and to support the debated reversibility of atrophy, this presented case reveals the existence of a new type of lesion induced by suprascapular nerve compression, consisting in isolated denervation of the supraspinatus muscle. This can be explained by an anatomic variation of the supraspinatus branch of the nerve which had an unusually distal origin, whereas typical compression patterns involve either supraspinatus and infraspinatus, or infraspinatus alone.

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