Fid

Fig. 15. Ulnar collateral ligament tear of the first MCP joint. Short tau inversion recovery (STIR) image of the first MCP joint using a digit or small loop coil precisely depicts rupture of the ulnar collateral ligament (arrow) at its attachment on the base of the first proximal phalanx.

firm mass on the ulnar aspect of the first metacarpal head. Stener lesions have been reported to occur in up to 29% of patients with UCL injuries [16]. MRI can demonstrate both the UCL and the extensor aponeurosis and can depict Stener lesions accurately [6]. If a Stener lesion is present, only operative intervention allows apposition and healing of the traumatically displaced ligament in an anatomic position [15].

SUMMARY

In conclusion, injuries of the fingers and thumb in the athlete are common. Mallet finger, jersey finger, boutonniere deformity, Bennett and Rolando fractures, and gamekeeper's thumb are just a few of the injuries that can occur in athletes. A thorough understanding of the mechanism of injury, osseous and soft tissue abnormalities, imaging features, and treatment is important in the care of athletes. Prompt and accurate diagnosis is important and may help minimize outcomes of malunion, posttraumatic arthritis, and debility.

References

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[9] Rettig AC. Wrist and hand overuse syndromes. Clin Sports Med 2001;20:591-611.

[10] Rosner JL, Zlatkin MB, Clifford P, et al. Imaging of athletic wrist and hand injuries. Semin Musculoskelet Radiol 2004;8:57-79.

[11] Gabl M, Rangger C, Lutz M, et al. Disruption of the finger flexor pulley system in elite rock climbers. Am J Sports Med 1998;26:651-5.

[12] Bennett EH. Fractures of the metacarpal bones. Dublin Med Sci J 1882;73:72-5.

[13] Palmer RE. Joint injuries of the hand in athletes. Clin Sports Med 1998;17:51 3-31.

[14] Rolando S. Fracture of the base of the first metacarpal and a variation that has not yet been described. 1910. Clin Orthop Rel Res 1996;327:4-8.

[15] Harper MT, Chandnani VP, Spaeth J, etal. Gamekeeper thumb: diagnosis of ulnar collateral ligament injury using magnetic resonance imaging, magnetic resonance arthrography and stress radiography. J Magn Reson Imaging 1996;6:322-8.

[16] Spaeth HJ, Abrams RA, Bock GW, et al. Gamekeeper thumb: differentiation of nondis-placed and displaced tears of the ulnar collateral ligament with MR imaging. Work in progress. Radiology 1993;188:553-6.

[17] Stener B. Displacement of the ruptured ulnar collateral ligament of the metacarpophalangeal joint. J Bone Joint Surg Am 1962;44B:869-79.

ELSEVIER

SAUNDERS

ELSEVIER

SAUNDERS

Arthrogram Metacarpophalangeal Joint

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