Shufflebarger H L, Clark C E
Miami Children's Hospital, Florida.
Spine (Phila Pa 1976). 1991 Aug;16(8 Suppl):S409-11.
Factors favoring development of the crankshaft phenomenon after posterior spinal fusion include immaturity and large residual deformity. Eight patients at high risk to develop the crankshaft phenomenon underwent periapical anterior growth arrest and fusion before posterior instrumentation and fusion. With follow-up to skeletal maturity, 0% developed crankshaft phenomenon. Anterior growth arrest and fusion before a posterior procedure is recommended in scoliosis patients at high risk to develop the crankshaft phenomenon.
后路脊柱融合术后有利于曲轴现象发生的因素包括骨骼未成熟和大量残留畸形。8例有发生曲轴现象高风险的患者在进行后路内固定和融合之前接受了根尖下前路生长阻滞和融合。随访至骨骼成熟，0%发生曲轴现象。对于有发生曲轴现象高风险的脊柱侧弯患者，建议在进行后路手术之前先行前路生长阻滞和融合。
