The Journal of Bone and Joint Surgery, Vol 61, Issue 6 825-832, Copyright © 1979 by Journal of Bone and Joint Surgery, Inc
Serratus anterior paralysis in the young athlete
JR Gregg, D Labosky, M Harty, P Lotke, M Ecker, V DiStefano and M Das
Ten cases of isolated, complete paralysis of the serratus anterior muscle
were diagnosed in young athletes during a three-year period. One patient
had recurrent partial paralysis of the serratus anterior muscle, the first
such case reported. From studies on cadavera and clinical observations, we
concluded that paralysis of the serratus anterior muscle results from a
traction injury to the long thoracic nerve of Bell. Since full recovery
usually occurs in an average of nine months, surgical methods of treatment
should be reserved for patients in whom function fails to return after a
two-year period. Non-strenuous use of the involved extremity with avoidance
of the precipitating activity, followed by exercises designed to maintain
the range of motion of the shoulder and to increase the strength of
associated muscles, is advocated for treatment of acute or repetitive
injuries to the long thoracic nerve of Bell.