Publications by authors named "Paul Khoueir"

Background: The objective of this study was to determine the impact of wait time in acute care for inpatient functional rehabilitation admission on the inpatient functional rehabilitation length of stay and functional outcome after a traumatic spinal cord injury.

Methods: A retrospective cohort including 277 patients admitted to a single level 1 spinal cord injury acute care center was completed. Partial correlations were used between wait time (in days) for transfer to inpatient functional rehabilitation, the inpatient functional rehabilitation length of stay, and the Spinal Cord Independence Measure total score in the chronic period, adjusting for confounding variables.

View Article and Find Full Text PDF

Study Design: Population-based cohort study for the western part of Quebec.

Objectives: To determine the impact of declining to participate in a national spinal cord injury (SCI) registry on patient outcomes and continuum of care.

Setting: Level-1 trauma center specialized in SCI care in Montreal, Canada.

View Article and Find Full Text PDF

Background: The prevalence of obesity in developed countries has reached alarming levels, doubling in the United States since 1980. Although obese patients with chronic low back pain are frequently advised to lose weight, the association between these medical conditions remains unproven.

Purpose: This study prospectively assessed clinically reported changes in chronic axial low back pain symptoms after weight reduction from bariatric surgery for morbid obesity.

View Article and Find Full Text PDF

Approximately 50,000 traumatic injuries resulting in fractures of the bony spinal column occur annually in the United States. Although some of these lesions are clearly unstable and mandate urgent surgical treatment for stabilization, less severe injuries may be managed initially with bracing and serial imaging to evaluate bony healing and alignment. A proportion of these injuries will require delayed surgical intervention to correct a posttraumatic deformity.

View Article and Find Full Text PDF

Cervical kyphosis in patients with ankylosing spondylitis (AS) can be severely disabling. Surgical treatment of this disorder is technically demanding, however, with a considerable risk of neurological and vascular injuries. The extension osteotomy is a well-described posterior treatment for this condition, but this approach presents the risk of acute subluxation and spinal column translation during the reduction.

View Article and Find Full Text PDF

Ankylosing spondylitis can lead to severe cervical kyphosis, causing problems with forward vision, swallowing, hygiene, patient functionality, and social outlook. Evaluation of patients with cervical flexion deformity includes assessment of global sagittal balance and chin-brow angle. The primary treatment in extreme disabling cases is surgical correction involving a posterior cervical extension osteotomy, which is a technically demanding procedure with considerable risk of neurological injury.

View Article and Find Full Text PDF

Objective: The pseudarthrosis rate after multisegment anterior cervical fusion is directly related to the number of levels surgically fused. The advent of osteobiological adjuvants offers an opportunity to reduce both the likelihood of failed arthrodesis and the need for posterior instrumentation. Collagen-hydroxyapatite matrix is osteoconductive and has been used with autogenous bone marrow aspirate (BMA) to promote fusion.

View Article and Find Full Text PDF

Object: To assess the safety and efficacy of the DIAM implant, the authors compared the mean 12-month outcomes in patients who underwent lumbar surgery with DIAM placement and in those who underwent lumbar surgery only.

Methods: Of 62 patients who underwent simple lumbar surgery (laminectomy and/or microdiscectomy) in a 24-month period, 31 underwent concomitant surgical placement of a DIAM interspinous process spacer (33 devices total). Radiographic imaging, pain scores, and clinical assessments were obtained postoperatively to a mean of 12 months (range 8-25 months).

View Article and Find Full Text PDF

Numerous new posterior dynamic stabilization (PDS) devices have been developed for the treatment of disorders of the lumbar spine. In this report the authors provide a classification scheme for these devices and describe several clinical situations in which the instrumentation may be expected to play a role. By using this classification, the PDSs that are now available and those developed in the future can be uniformly categorized.

View Article and Find Full Text PDF

Following an L5-S1 SB Charité disc III implantation, a 37-year-old female patient developed intractable radicular pain in the left L5 distribution. The patient underwent a minimally invasive foraminotomy, and her symptoms improved significantly. However, following recurrence of radicular pain, she showed signs of an L5-S1 facet degeneration and recurrent nerve root compression from hypertrophied synovium.

View Article and Find Full Text PDF

Primary brain tumors, particularly glioblastomas (GB), remain a challenge for oncology. An element of the malignant brain tumors' aggressive behavior is the fact that GB are among the most densely vascularized tumors. To determine some of the molecular regulations occuring at the brain tumor endothelium level during tumoral progression would be an asset in understanding brain tumor biology.

View Article and Find Full Text PDF