998. What is positive valgus stress testing for UCL injury? Get radiographs? Rx // Why is hand position important in tendon injury? // What is mallet finger? September 18th, 2009 by reuben in hand Back Top Tags: card 997. Complex/complete dislocation of MCP Rx // Forced radial deviation (abduction) of thumb causes what injury? How do you test for it? 999. Mallet finger Rx / Who needs surgery? / Prognosis / Name of associated deformity and opposite deformity / Extensor tendon injury over MCP is what until proven otherwise? / Rx Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.