This is an injury to the ulnar collateral ligament of the metacarpo-phalangeal joint. This is a strong ligament that supports the thumb when pinching or gripping and if it is damaged may lead onto to a chronic instability of the thumb which causes problems with function. The injury happens when you fall onto the outstretched thumb see diagram and is more likely if the thumb is gripping something at the same time.
It is essentially synonymous with skier's thumbalthough the latter has more of an acute injury connotation. The repetitive breaking-of-necks of small game rabbits and such resulted in chronic injury to the ulnar collateral ligament of the metacarpophalangeal joint of the thumb with weakening and eventual tear. Gamekeeping and poaching have largely fallen by the wayside as a recreational activity.
This is performed with an ulnar stress applied to the thumb proximal phalanx while the metacarpal is supported radially and the thumb is in 30 degrees of flexion at the MP joint to eliminate support of the volar plate. It has been suggested that 30 to 40 degrees of laxity or laxity that is at least 15 degrees greater than the non-involved thumb indicates a complete rupture of the ligament. Thumb MP joint laxity is not uncommon so testing always needs to be completed bilaterally for comparison.
Injury to the ulnar collateral ligament of the thumb is very common and can be disabling when missed or left untreated. We present a review of literature and our preferred way of management. Rupture of the ulnar collateral ligament of the thumb metacarpophalangeal joint MCPJ is a common hand injury that can lead to long-term problems if inadequately treated [ 3534 ]. Excessive valgus stress to the base of the thumb may result in disruption of the ulnar collateral ligament complex with or without an avulsion fracture of the base of the proximal phalanx.
It is an often-encountered injury and can lead to chronic pain and instability when diagnosed incorrectly. This article provides a review of the relevant anatomy, the correct method of physical examination and the options for additional imaging and treatment with attention to possible pitfalls. The literature search was conducted on PubMed in the week of 5 November
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. The injury involves the ulnar collateral ligament UCLa band of tough, fibrous tissue that connects the bones at the base of the thumb. This ligament prevents the thumb from pointing too far away from the hand.
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Common causes include a fall onto an outstretched hand, gripping the steering wheel during a car accident, and falling while holding a ski pole. Symptoms Symptoms typically include pain, swelling, and tenderness on the ulnar side of the thumb MCP joint. Pinching and gripping with the thumb may be difficult, and range of motion may be limited.
Complete rupture can be a debilitating injury resulting in decreased grip and pinch strength. Purpose The present study evaluated prospectively the functional results of 27 patients who had open repair of UCL of the thumb using microanchors either acutely or delayed up to 9 weeks postinjury. Patients and methods Through a standard S-shaped incision over the dorsoulnar aspect of the thumb, one or two 1.
Description: The ulnar collateral ligament provides stability to the MCP joint of the thumb in flexion and valgus. It originates from the ulnar distal aspect of the first metacarpal and attaches onto the proximal ulnar portion of the proximal phalanx. Injuries to the Ulnar Collateral Ligament can involve a sprain, tear and avulsion.