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Malpractice of Epiphyseal Cannulated Screw Fixation in a Child with Avulsion Fracture of the Tibial Eminence Complicating with Lack of Knee Extension and Distal Femoral Fracture

兒童脛骨上端隆起撕扯性骨折經螺釘內固定不良發生後續膝伸展障礙與股骨遠端骨折

並列摘要


Avulsion fracture of the tibial eminence is rare in children. This report describes a case of a 9-year-old boy who had been treated previously with an epiphyseal cannulated screw and washer, but without notchplasty, for an avulsion fracture of the tibial eminence. The patient subsequently presented with extension block and knee stiffness. After removal of the implants and manipulation, an iatrogenically-induced distal femur fracture was observed postoperatively with callus formation noted at follow-up. This case serves to illustrate the importance of identifying and treating screw head impingement during fixation surgery, of avoiding vigorous manipulation during removal of fixation devices, and of consulting radiographs after any manipulation.

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