目的：明确长节段椎弓根螺钉重建后发生近端急性骨折的危险性及疗效。
Objective. To determine risk factors and outcomes for acute fractures at the proximal aspect of long pedicle screw constructs.
结论：本文就一例少见的复发性多处腰椎椎弓根骨折伴椎弓峡部骨折的石骨症病例的相关问题进行了讨论。
Conclusion. This case report discusses the rare occurrence of multiple lumbar pedicle fractures and pars interarticularis (spondylolysis) fractures in a patient with osteopetrosis.
此规律实际应用于胸腰部脊椎骨折病人椎弓根系内固定术中钉间距的确定。
This law was practically used to determine the space length of the nails in trans vertebral pedicle internal fixation of the thoracolumbar vertebral fractures.
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