What are common signs of arthrogryposis?

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Arthrogryposis can range from mild to severe, depending on the number of joints involved and the amount of muscle tissue missing.In the classic form of arthrogryposis, all the joints of the extremities are stiff, but the spine is not affected.In addition to contractures, muscles are often thin, weak, or missing.Arm posture in children with arthrogryposis often includes internal rotation, elbow extension with limited flexion, and flexed wrists with ulnar deviation.Contractures in the lower extremities are noted with typical posture including hip abduction and external rotation, knee extension or knee flexion contractures, and foot deformities.Arm and leg muscles are small, with webbed skin covering some or all of the joints.Infants are born with significant contractures that improve with aggressive ROM exercises during infancy.In typical cases, all the joints of the arms and legs are fixed in one position, partly due to muscle imbalance or lack of muscle development during gestation.

What Are Common Signs of Arthrogryposis