<unk><unk> -ulna syndrome (FFU syndrome) is a very rare syndrome characterized by abnormalities of the<unk>  (thigh bone),<unk>  (calf bone) and the<unk>  (forearm bone). There have been suggestions that FFU complex may be the same as proximal<unk> al focal deficiency (PFFD) although authors are currently in disagreement over whether or not the disorders are in fact separate. The breadth of the abnormality and number of limbs involved is considered sporadic although upper limbs are more affected than lower limbs and right side malformation is more prevalent than the left. The condition was first noted by Lenz and Feldman in 1977.
Femur fibula ulna syndrome
Anterior interosseous syndrome
Facial femoral syndrome
Duane-radial ray syndrome
Tailor's bunion
Iliotibial band syndrome
Chauffeur's fracture
Boxer's fracture