Revista de Medicina Desportiva (English) January 2019 | Page 23

Rev. Medicina Desportiva informa, 2019; 21-24. Medial Traumatic Winged Scapula on a Futsal athlete: clinical Case Dr. Tiago Rodrigues Lopes 1,3 , Dra. Inês Machado Vaz 2,4 , Dra. Elza Pires 2,3 1 Resident and 2 Specialist on Physical and Rehabilitation Medicine. 3 Centro Hospitalar Trás-os-Montes e Alto Douro, Vila Real;  4 Centro de Reabilitação do Norte, V.N. Gaia. Portugal. RESUMO / ABSTRACT Medial scapular winging is a rare pathological condition associated with dysfunction of serratus anterior muscle due to injury of the long thoracic nerve, mostly related to trauma or iatrogeny. This lesion results in a change in the scapulo-thoracic rhythm, known as scapular dyskinesis, which causes significant functional limitations. The authors describe a rare case of medial scapular winging due to traumatic injury of the long thoracic nerve during futsal practice and emphasize the importance of early diagnosis and the role of rehabilitation in the clinical and functional recovery of the athlete. PALAVRAS-CHAVE / KEYWORDS Brachial plexus neuropathies, long thoracic nerve, futsal, rehabilitation Introduction Winged scapula (WS) is defined as a change on the posture and on the rhythm of the scapulohumeral joint, where the medial border or the inferior angle of the scapula are away from the thoracic wall, result- ing a protrusion of the scapula with a shape of a wing. 1,2 It was reported for the first time in the medical literature on 1723 by Winslow 3 , and most of the times it is the result of the injury on the long thoracic nerve or, less frequently, because of the paralysis of the trapezius mus- cle due to the injury of accessory nerve. 4-6 Rarely, it can be associated to the paralysis of rhomboid mus- cles due to the injury to the dorsal scapular nerve. 7 The anterior serratus and infe- rior trapezius muscles are the main shoulder stabilizers, whereby the change of their function causes changes on the kinetic and on the kinematics of the shoulder with consequent disruption of the scapu- lohumeral rhythm. As such, where there is paralysis of these muscles there is a medial or lateral transla- tion of the scapula on the thoracic wall by the involvement of the ago- nists / antagonists muscular chains, causing different phenotypes: Medial scapula – paralysis of ante- rior serratus muscle Lateral scapula – paralysis of the trapezius and rhomboid muscles. 1,7 The paralysis of the anterior serratus muscle is a rare patholo- gical condition, with an incidence of injury to the long thoracic nerve of only 1/38.500, and it is admitted, however, a higher prevalence. 4,8  The severity of the WS is variable and pain, not always present, has the tendency to spontaneously vanish with time, even when there is com- plete loss of the muscular function. 4 The injury of the long thoracic nerve can be attributed to several etiologies: traumatic, non-traumatic and iatrogenic. 7,9  In the case of a traumatic cause, the injury of tho- racic nerve can be related to a great stretch of the upper limb, causing a traction / compression mechanism between the cervical origin and the terminal branches at the level of the anterior serratus muscle. 4,9,10  The direct trauma can also be one of the mechanisms of injury, like when there is a depression of the shoulder together with cervical inclination or rotation toward the opposite direction. 4,9 The paralysis of the anterior ser- ratus muscle has been reported on professional and amateurs athletes of several sports, including archery, tennis, American football, ballet and basketball. 4,11-13  The diagnosis is mainly supported by clinical presen- tation, whereby it is fundamental a detailed anamnesis, later suppor- ted by a systemized and integrated physical exam. Actually, the elec- troneuromyography (ENMG) of the muscles that integrate the scapular girdle is considered essential and the main medical diagnostic exam to find out which muscle is involved and the degree of denervation. 14 Figure 1 – The long thoracic nerve. Ref. http://fisioricardosena.blogspot.com/2007/03/dor-na-cintura-escapularconsideraes.html Revista de Medicina Desportiva informa january 2019 · 21