This patient has metacarpophalangeal (MP) and proximal interphalageal (PIP) joint  flexion contractures in the small finger due to Dupuytrens contracture.

Dupuytrens disease

 

In the following image, the abnormal Dupuytrens cords and nodules are illustrated in black. There are no joint contracture in the index finger or ring finger.

Dupuytrens disease 2