Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) tarsal-carpal coalition syndrome ?
    ### Response:
    Tarsal-carpal coalition syndrome is a rare, inherited bone disorder that affects primarily the hands and feet. Several individual bones make up each wrist (carpal bones) and ankle (tarsal bones). In tarsal-carpal coalition syndrome, the carpal bones fuse together, as do the tarsal bones, which causes stiffness and immobility of the hands and feet.
    