Fig 35A-8. A, a patient with bilateral PFFD has been fitted with prostheses without amputation or revision surgery. B, the thigh segment of the prosthesis is carved willow wood with lacers over the feet and a Velcro closure over the shank portion. A single-axis knee and a solid-ankle, cushion-heel (SACH) foot complete the prosthesis. C, the clothed patient has a normal appearance even though his gait demonstrates severe waddle. D, at 15 years of age he has become obese, a major problem for such a patient. E, despite obesity, he remains fully ambulatory. F, at the age of 41 years the patient is fully employed and continues to wear the same type of prostheses.