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Distal junctional failure secondary to L5 vertebral fracture—a report of two rare cases

  
@article{JSS3733,
	author = {Jiong Hao Tan and Kimberly-Anne Tan and Hwee Weng Dennis Hey and Hee-Kit Wong},
	title = {Distal junctional failure secondary to L5 vertebral fracture—a report of two rare cases},
	journal = {Journal of Spine Surgery},
	volume = {3},
	number = {1},
	year = {2017},
	keywords = {},
	abstract = {Distal junctional failure (DJF) with fracture at the last instrumented vertebra is a rare occurrence. In this case report, we present two patients with L5 vertebral fracture post-instrumented fusion of the lumbar spine. The first patient is a 78-year-old female who had multi-level degenerative disc disease, spinal stenosis and degenerative scoliosis involving levels T12 to L5. She underwent instrumented posterolateral fusion (PLF) from T12 to L5, and transforaminal lumbar interbody fusion (TLIF) at L2/3 and L4/5. Six months after her operation, she presented with a fracture of the L5 vertebral body necessitating revision of the L5 pedicle screws, with additional TLIF of L5/S1. The second patient is a 71-year-old female who underwent decompression and TLIF of L3/4 and L4/5 for degenerative spondylolisthesis. Six months after the surgery, she developed a fracture of the L5 vertebral body with loosening of the L5 screws. The patient declined revision surgery despite being symptomatic. DJF remains poorly understood as its rare incidence precludes sufficiently powered studies within a single institution. This report aims to contribute to the currently scarce literature on DJF.},
	issn = {2414-4630},	url = {https://jss.amegroups.org/article/view/3733}
}