The deep transverse metacarpal ligament (DTML) is a structure that extends between the head of the second to fifth metacarpal to maintain the stability of the transverse metacarpal arch. Injuries of this ligament due to blunt trauma produce DTML injury and present with pain, decreased grip strength, deflection and diastasis of the affected fingers. Several surgical techniques for its reconstruction have been described. However, we evaluated the evolution of two patients who presented this injury diagnosed in acute and treated conservatively. Immobilization with forearm plaster in the intrinsic plus position and syndactyly to the adjacent finger was performed for 4 weeks. At one year of follow-up, they presented no pain (VAS 0/10) and showed hand function with comparable mobility to the contralateral hand and no diastasis between the fingers. We consider that in the face of DTML lesions evaluated in the acute period, diagnosis through clinical and radiological evaluation, as well as nonsurgical treatment, are usually sufficient.
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