15-year-old female who injured thumb playing volleyball

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Playing volleyball hyperextended 6 weeks ago now with pain in the 1st MCP.

Long- and short-axis fat- and water-weighted images were performed. 

  • A grade 1 gamekeeper thumb is noted with a tear of the UCL whose separation dimension from the attachment is 2.3mm. 
  • No Stener-type lesion is identified. 
  • No macrofracture is identified. 
  • No entrapment or backfolding of the UCL is noted. 
  • The palmar plate is spared. The extensors are normal. The flexors are normal.

Grade 1 gamekeeper thumb with 2.3mm of retraction.

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