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[Muscle power and shoulder joint function after removal of the latissimus dorsi muscle].

Free transplantation of the latissimus dorsi muscle has become the treatment of choice in extensive soft-tissue defects of the lower leg after trauma. However, neither the ability of the remaining muscles of the shoulder to compensate for the lost function nor the long-term effects of latissimus dorsi removal on the function of the shoulder have been objectively measured. Therefore, the postoperative shoulder function in 23 patients was compared after removal of the latissimus dorsi muscle with 23 control subjects. The evaluation included a questionnaire, physical examination, and instrumented muscle-testing (cybex system). No significant statistical differences in the function of the shoulders of all the patients and control subjects could be verified, with the exception that 16 patients exhibited weakness during isokinetic torque during extension of the shoulder in a 55 to 65 degree flexion (4.2 +/- 1.2%). The latissimus dorsi free flap can therefore be recommended as a procedure for soft-tissue coverage of extensive wounds resulting only in negligible loss of function and a slightly altered appearance of the shoulder-girdle.