Sprains, Strains, and Partial Tears of the Medial Ulnar Collateral Ligament of the Elbow.

Medial ulnar collateral ligament (MUCL) insufficiency is becoming common in younger, nonprofessional athletes. In contrast to elite athletes who develop valgus extension overload syndrome and associated chronic pathologic changes in the MUCL, younger patients present with sprains and partial tears that can often be managed non-operatively with successful outcome and rapid return to play. In the younger throwing athlete with medial-sided elbow pain, a hinged elbow brace and rehabilitation of dysfunctional muscles often lead to successful recovery and return to play within 1-2 months. In more severe injuries, direct repair of the partial tear with or without added internal bracing supplementation allows restoration of stability with a return to play with 4 to 6 months.