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It can lead to chronic instability if not treated appropriately; unfortunately it is commonly misdiagnosed. Gamekeeper’s thumb specifically refers to the cause being chronic injury to the UCL in which it became attenuated through repetitive stress. Pain at medial base of thumb (ulnar aspect) Test active and passive thumb abduction; Assess thumb metacarpophalangeal joint (MCP) laxity.
Test for: partial tear of the ulnar collateral ligament (+) = reproduction of pt symptoms pt sits with elbow flexed to 90 degrees or more and forearm supinated examiner stabilizes the elbow and pulls the thumb while applying a valgus stress at the elbow The injury involves the ulnar collateral ligament (UCL), a band of tough, fibrous tissue that connects the bones at the base of the thumb. The two common descriptive terms for injuries to the ulnar collateral ligament are: Inj… Assesses ulnar collateral ligament stability at the thumb's metacarpophalangeal joint. This ligament prevents the thumb from pointing too far away from the hand. Which of the following most accurately describes the role these ulnar collateral ligaments (PCL/ACL) play in thumb MCP joint stability? Apply valgus force to the 1st MCP to test the ACCESSORY UCL with the.ALiEM is your digital connection to the cooperative world of EM. A gamekeeper’s thumb, also called a skier’s thumb, is an injury to one of the important ligaments at the base of the thumb joint.
To test for joint stability, one should test by fully flexing the MCPJ and should apply valgus stress to the thumb to test the proper collateral ligament. Injuries to the ulnar collateral ligament (UCL) of the thumb were first recognized as an occupational condition in European gamekeepers.
Remember that the ulnar collateral ligament of the metacarpophalangeal (MP) joint is located right at the edge of the web of the thumb; it holds the medial side of the joint together so that it doesn't side-flex more than a tiny bit.
Despite proper examination techniques, subtle injuries can be missed and for this reason, all patients with any suspicion for an UCL injury should be placed in a thumb spica splint and followed closely by an orthopedist.1. This is called an avulsion fracture. The ligament is completely torn or is pulled off its attachment to the bone. If the ligament tears away from the bone, it may take a small chip of the bone with it.
This condition is sometimes called gamekeeper’s thumb because Scottish gamekeepers commonly injured their thumbs as a result of their job.. injury to the ulnar collateral ligament of the metacarpo-phalangeal joint
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