Julie Belkin on Fri, Dec 08,2017 @ 06:58 AM
Collapse deformities of the thumb are all too common in the presence of CMC joint arthritis. The Nalebuff Type III or “intrinsic minus” thumb deformity evidenced by CMC flexion, MP extension or hyperextension and IP flexion is the most common deformity.
This becomes a highly dysfunctional posture over time due to the loss of MCP flexion, web space shortening and thenar muscle atrophy - making moving the thumb away from the palm all but impossible.
Read MoreLori Algar OTD, OTR/L, CHT on Mon, Sep 21,2015 @ 03:56 PM
Arthritis at the base of the thumb (formerly known as CMC Arthritis -now commonly referred to as trapeziometacarpal or TMC Arthrosis) is a common problem. In fact, TMC arthrosis has been found to be symptomatic in 26.2% of women and 13.2% of men age 71-100.
The symptoms of TMC arthrosis can negatively impact both functional and occupational performance, often making it necessary for the involvement of physical and occupational therapists.
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