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W Lokietek

Publications and source records attributed to W Lokietek.

34 records · Page 2Linked to original sources

Is APD a promising drug in the treatment of severe osteogenesis imperfecta?

The efficacy of (3-amino-1-hydroxypropylidene)-1,1-biphosphonate (APD) is reported in a severe case of osteogenesis imperfecta (OI). An increased density at the metaphysis level is demonstrated on wrist radiograph. Similar findings have been observed in two other children with OI at various metaphyseal levels (e.g., tibia, femur). To our knowledge, this is the first time the effect of APD in children with severe OI has been reported.

Child↗

Contributing factors for osteogenesis in children's limb lengthening.

A progressive bone lengthening procedure according to the Wagner and Ilizarov technique and our own protocol was performed on 24 children (32 bones). Wagner's (transverse midshaft osteotomy, intraoperative lengthening of 1 cm and postoperative distraction of 1 mm/day) led to a marked reduction in osteogenic capacities. Patients operated on according to the Ilizarov technique had osteogenic reactions in the medullary cavity and on the posterior aspect of bone segments. Our own method, which included bone decortication, 5-7 days of neutral fixation without distraction, led to massive bone production in the medullary canal and around the bone segments. Rigid osseous bridging was present as early as 3 months after surgery. Neither the type of external fixator nor the location or shape of osteotomy had any specific influence on this massive bone reaction. Osteogenesis in limb lengthening is thus closely related to surgical management.

Bone Lengthening↗