Spine
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Clinical Trial Controlled Clinical Trial
Altered motor control strategies in subjects with sacroiliac joint pain during the active straight-leg-raise test.
An experimental study of respiratory function and kinematics of the diaphragm and pelvic floor in subjects with a clinical diagnosis of sacroiliac joint pain and in a comparable pain-free subject group was conducted. ⋯ The study findings formally identified altered motor control strategies and alterations of respiratory function in subjects with sacroiliac joint pain. The changes observed appear to represent a compensatory strategy of the neuromuscular system to enhance force closure of the pelvis where stability has been compromised by injury.
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The essence of congenital vertebral displacement Type A pathology is a congenital structure defect including a vertebral or intervertebral disc with instant curvature of the spinal canal in the sagittal plane. Clinically this defect assumes the shape of kyphosis or kyphoscoliosis. A retrospective review of 11 patients with this congenital deformity was conducted. ⋯ The findings showed that only extensive vertebrectomy and anterior stabilization using a cylindric cage or fibula graft combined in one operative procedure, preceded or followed by posterior fusion, ensures patients against progression of neurologic deficits and deformity of spine.
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To determine the osteogenicity of posterior longitudinal ligament ossification, the posterior longitudinal ligament obtained during anterior cervical surgery from patients with the disorder was analyzed with in vitro cultures. ⋯ Posterior longitudinal ligament cells from the three North American white patients with ossification of the posterior longitudinal ligament, when cultured in vitro, synthesized osteocalcin on vitamin D3 priming, confirming their osteoblastic phenotype, whereas posterior longitudinal ligament cells from four white patients with isolated spondylosis did not.
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Case Reports
Microradiographic and histopathologic findings in a human cage explant after two-level corpectomy: a case report.
A case involving microradiographic and histopathologic analysis of an explanted human corpectomy mesh cage is reported. ⋯ This study involved one titanium mesh device (Harms cage), 20 mm in diameter and 45 mm long, explanted from a two-level corpectomy clinical case. This device was retrieved, processed, and analyzed after informed patient consent and approval from the authors' institutional review board.