Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) congenital contractural arachnodactyly ?
    ### Response:
    Congenital contractural arachnodactyly is a disorder that affects many parts of the body. People with this condition typically are tall with long limbs (dolichostenomelia) and long, slender fingers and toes (arachnodactyly). They often have permanently bent joints (contractures) that can restrict movement in their hips, knees, ankles, or elbows.
    