Camptodactyly is a fixed flexion deformity at the PIP joint
of the little finger. The condition is an autosomal dominant trait involving
permanent flexion of the little finger. Camptodactyly may also be bilateral
affecting multiple digits. Unilateral 1/3 of the time and bilateral 2/3 of the
time. Camptodactyly occurs in less than 1% of the population, and it may be
associated with several congenital syndromes. Camptodactyly may be caused by
abnormal lumbricals and flexor digitorum superficialis insertion. Severe
camptodactyly may cause difficulty in grasping objects. Clinodactyly is
congenital curvature of the digit in the radioulnar plane. Treatment should be
done early with splinting, passive stretching, and physical therapy. Surgery
may be needed if the deformity is flexible, the patient may need tenotomy or
tendon transfer. If the deformity is severe and fixed, the patient may need
osteotomy or arthrodesis.
