Journal of Korean Medical Science  2006;21(3):581-584

doi:10.3346/jkms.2006.21.3.581

Winged Scapula Caused by Rhomboideus and Trapezius Muscles Rupture Associated with Repetitive Minor Trauma: A Case Report.

Sam Gyu LEE 1 ; Jae Hyung KIM ; So Young LEE ; In Sung CHOI ; Eun Sun MOON

Affiliations

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Keywords

Scapula; Muscle, Skeletal; Wounds and Injuries; Rhomboideus Muscle; Trapezius Muscle Shoulder

Country

Republic of Korea

Language

English

Abstract

We experienced a rare case of winged scapula that was caused by the rupture of the rhomboideus major and the lower trapezius muscles without any nerve injury in a 12 yr old female after she had carried a heavy backpack. Electrodiagnostic study revealed that the onset latencies, amplitudes and conduction velocities were normal in the long thoracic nerve, the spinal accessory nerve and the dorsal scapular nerve. The needle EMG findings were normal as well. An explorative operation was performed and the rupture of the rhomboideus major and lower trapezius muscles was detected. Direct surgical repair of the ruptured muscle was carried out and the deformity was corrected. The anatomical and functional restoration was satisfactorily accomplished.