Caudal Regression Syndrome (CRS) is a rare disorder which consists of abnormalities in the lumbosacral spine, rectum, urinary system and lower limbs. These abnormalities also include orthopaedic deformities, such as hip dislocation, knee-flexion contracture with popliteal webbing and talipes equinovarus. Because of the rarity of this condition, few medical personnel are aware of it. Here, we present a case of CRS in a 15-year-old girl with pressure ulcers on the lateral malleolus and plantar surface of the foot, which had come into contact with the wheelchair footrest. Although the foot ulcers healed after off-loading, the ulcer on the lateral malleolus did not heal with conservative treatment and was covered by a lateral supramalleolar flap after debridement. Stable coverage and good contours were present at 18 months postoperatively. CRS patients may have a risk factor for developing pressure ulcers of the foot due to the characteristic lower limb deformities and a loss of sensation. Preventive foot care measures such as off-loading devices combined with modern dressings should be applied as routine when the medical personnel is to attend such patients.
Keywords: Caudal dysgenesis; Lower extremity deformities; Perforator flap.