Skier's thumb: Difference between revisions
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== Characteristics/Clinical Presentation == | == Characteristics/Clinical Presentation<br> == | ||
The most common presentation is pain over the ulnar aspect of the MCPJ of the thumb. If the injury is acute there will be bruising and inflammation. There may be tenderness with palpation, which localizes the injury to the ulnar aspect of the thumb where the UCL is lesioned. Patients typically complain of pain and weakness when using a pincer grip. Examples include holding a pen, grasping objects, unscrewing jar lids and turning a key or doorknob.<ref>Patel et al.</ref> In the instance of a Stener lesion, there may also be a palpable mass proximal to the adductor aponeurosis.<ref>Anderson D</ref> | |||
== Differential Diagnosis == | == Differential Diagnosis == | ||
Revision as of 18:11, 19 March 2011
Original Editors - Alicia Keefe and Brenna Rutledge
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Definition/Description[edit | edit source]
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Clinically Relevant Anatomy[edit | edit source]
Injury to the ulnar collateral ligament (UCL) at the metacarpophalangeal joint (MCPJ) of the thumb, also known as "skier's thumb," can involve other structures such as the adductor aponeurosis, the accessory collateral ligament, bony structures, tendons, and neurological tissues.[1]
There are two main supporting ligaments traversing the MCPJ of the thumb: the UCL and the radial collateral ligament (RCL). In general, UCL injuries account for 60-90% of ligamentous collateral injuries.[2] The UCL and RCL arise from the medial and lateral tubercles of the metacarpal condyles, respectfully, and insert into the base of the proximal phalanx on their respective sides (Figure 1).[2][3]
Epidemiology /Etiology[edit | edit source]
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Characteristics/Clinical Presentation
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The most common presentation is pain over the ulnar aspect of the MCPJ of the thumb. If the injury is acute there will be bruising and inflammation. There may be tenderness with palpation, which localizes the injury to the ulnar aspect of the thumb where the UCL is lesioned. Patients typically complain of pain and weakness when using a pincer grip. Examples include holding a pen, grasping objects, unscrewing jar lids and turning a key or doorknob.[4] In the instance of a Stener lesion, there may also be a palpable mass proximal to the adductor aponeurosis.[5]
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- ↑ Anderson D. Skier's thumb. Aust Fam Physician. 2010;39(8):575-577.
- ↑ 2.0 2.1 Patel S, Potty A, Taylor EJ, Screne ED. Collateral ligament injuries of the metacarpophalangeal joint of the thumb: a treatment algorithm. Strat Trauma Limb Recon. 2010;5:1-10.
- ↑ Thumb sprains. American Society for Surgery of the Hand Web site. Available at: http://www.assh.org/Public/HandConditions/Pages/ThumbSprains.aspx. Accessed March 18, 2011.
- ↑ Patel et al.
- ↑ Anderson D
