J of Hand Surg Am. The dynamic stabilizers are the intrinsic and extrinsic muscles of the thumb or most notably the adductor pollicis muscle. Posner MA, Retailaud J. Differentiation of non-displaced and displaced tears of the ulnar collateral ligament with MR imaging. Today, this injury is more a result of delayed treatment of an acute injury. The distal attachment on the proximal phalanx is the most frequent site of rupture.
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Gamekeeper's thumb--a treatment-oriented magnetic resonance imaging classification.
Surgical treatment of skier's thumb injuries: Technique, pattern-based approach, and differential diagnosis. If the diagnosis is missed or the injury is not treated properly, enduring pain, weak pincer grasp, or arthritis may result. These lesions are initially treated conservatively for 6 weeks. The distal attachment on the proximal phalanx is the most frequent site of rupture. Stener lesions may produce a lump over the medial aspect of the MCP joint, but otherwise they can be difficult to diagnose clinically.
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Patient-induced stress test of the first metacarpophalangeal joint: The ulnar collateral ligament provides static stabilization of the thumb MCP joint. A year-old pregnant woman presented to her We evaluated 43 cases of UCL injury with a dedicated extremity magnetic resonance imaging and measured the degree of ligament displacement. Supplemental Content Full text links. However, if surgery is undertaken 3 weeks after the initial injury, intervention is more difficult and the results are suboptimal. AP and lateral radiographs showed a fracture at the base of the proximal phalanx of the thumb Figure 1.
Description:J Hand Surg Am. If you log out, you will be required to enter your username and password the next time you visit. American College of Emergency Physicians Disclosure: J Bone Joint Surg [Br]. The UCL may even avulse a small portion of the proximal phalanx at its insertion site. USis a more dynamic and less time-consuming test than MR and may be easier to perform.