Matthew A Walker

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STUDY DESIGN A morphometric study of the lateral buttress region of the lumbar pars interarticularis from L1-L5 on 10 dried lumbar spines was performed. OBJECTIVE To qualitatively describe and quantitatively evaluate this portion of the pars and to discuss its clinical and surgical relevance. BACKGROUND The "lateral buttress" is a bony bridge connecting(More)
STUDY DESIGN AND OBJECTIVES A retrospective, consecutive series with "blinded" radiographic review was performed to evaluate two groups undergoing lumbar fusion: one with and one without autologous growth factors (AGF). SUMMARY OF BACKGROUND DATA AGF has been shown to promote bone formation in vitro and in vivo in animal studies. Accordingly, it has been(More)
BACKGROUND The relationship between severity of preoperative radiographic findings and surgical outcomes following decompression for lumbar degenerative spinal canal stenosis is unclear. Our aim in this paper was to gain insight into this relationship. We determined pre-operative radiographic severity on MRI scans using strict methodological controls and(More)
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