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STUDY DESIGN A retrospective clinical study. OBJECTIVE To evaluate the effect of preservation of paraspinal muscles attached at the spinous process of C2 or C7 in selective laminoplasty on postoperative axial pain. SUMMARY OF BACKGROUND DATA Several methods of modified laminoplasty such as selective decompression and/or reconstruction of detached(More)
To improve the efficacy of a block copolymer of poly-d, l-lactic acid with randomly inserted p-dioxanone and polyethylene glycol (PLA-DX-PEG) as a drug delivery system for recombinant human bone morphogenetic proteins (rhBMPs), we examined the relationship between the volume of PLA-DX-PEG, the dose of rhBMP-2 and osteoinduction in a mouse model of ectopic(More)
The authors describe a new vertebroplasty technique for the treatment of chronic painful vertebral compression fractures (VCFs). A urinary balloon catheter is introduced into the vertebral body (VB) via a bilateral transpedicular approach and inflated with contrast medium to obtain sufficient space for endoscopic observation. The granulation tissue(More)
There are many reports of extradural ependymal cysts in the literature; however, reports of intradural ependymal cysts are very rare and there has been no prior mention of an ependymal cyst originating from the filum terminale. In this report we present the case of a 31-year-old woman with an ependymal cyst that caused cauda equina compression, and discuss(More)
STUDY DESIGN An experimental animal study aimed at achieving posterolateral intertransverse process fusion with rhBMP-2 in combination with the local delivery of an EP4 receptor agonist. OBJECTIVE To determine whether an EP4 receptor agonist (EP4A) can reduce the amount of BMP required to achieve posterolateral spinal fusion in rabbits. SUMMARY OF(More)
OBJECTIVE Tissue factor and lipopolysaccharide frequently have been used to induce disseminated intravascular coagulation in experimental animal models. Although the pathophysiology of disseminated intravascular coagulation may differ according to the agents used to induce it, these previous models have not distinguished between the use of different(More)
STUDY DESIGN Prospective multicenter study. OBJECTIVE To identify radiographic or magnetic resonance (MR) images of fresh vertebral fractures that can predict a high risk for delayed union or nonunion of osteoporotic vertebral fractures (OVFs). SUMMARY OF BACKGROUND DATA Vertebral body fractures are the most common fractures in osteoporosis patients.(More)
BACKGROUND The objective of this study was to evaluate shoulder balance following posterior spinal fusion for thoracic adolescent idiopathic scoliosis (AIS). METHODS Twenty-four patients (22 females) with thoracic AIS who had undergone posterior fusion with segmental pedicle screws were retrospectively reviewed. The mean follow-up duration was 29 (range,(More)
The aim of this work is to expand the knowledge about fiber distribution, capillarization, and metabolic potential in different anatomic sections of the left and right human lumbar paravertebral muscles and further to investigate whether a relationship between these parameters and trunk muscle endurance exists. Lumbar (L3) paravertebral muscle samples were(More)