J Andre Grotenhuis

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Bone marrow stromal cells (BMSC) transplanted into the contused spinal cord may support repair by improving tissue sparing. We injected allogeneic BMSC into the moderately contused adult rat thoracic spinal cord at 15 min (acute) and at 3, 7, and 21 days (delayed) post-injury and quantified tissue sparing and BMSC survival up to 4 weeks(More)
INTRODUCTION Different opinions exist in the literature about the effectiveness of endoscopic third ventriculostomy (ETV) in the treatment of hydrocephalus in young children. Therefore we made a retrospective evaluation of our own success rates of performing ETVs in children less than 2 years of age. MATERIALS AND METHODS In a series of 275 ETVs 66(More)
The authors determined the landmarks and coordinates for intraoperative ventricular puncture directly from the supraorbital craniotomy opening via an eyebrow incision. Fifty magnetic resonance (MR) imaging studies were obtained from patients with no pathological cerebral characteristics or ventricular distortion. The cerebral entry point of the(More)
OBJECTS A lot has been published about neuroendoscopic procedures over the last decade. Most of these publications are about the effectiveness of endoscopic third ventriculostomy, the most frequently performed neuroendoscopic procedure. Little is published about the effectiveness of other, less frequently performed neuroendoscopic procedures. Over the years(More)
OBJECT In this study the authors evaluate the safety, efficacy, and indications for endoscopic third ventriculostomy (ETV) in patients with a history of subarachnoid hemorrhage or intraventricular hemorrhage (IVH) and/or cerebrospinal fluid (CSF) infection. METHODS The charts of 101 patients from seven international medical centers were retrospectively(More)
We tested whether reducing macrophage infiltration would improve the survival of allogeneic bone marrow stromal cells (BMSC) transplanted in the contused adult rat thoracic spinal cord. Treatment with cyclosporine, minocycline, or methylprednisolone all resulted in a significant decrease in macrophage infiltration at 3 days postinjury. However, when BMSC(More)
OBJECT The authors prospectively evaluated the safety and efficacy of a novel polyethylene glycol (PEG) hydrogel sealant in patients undergoing elective cranial surgery with documented cerebrospinal fluid (CSF) leakage after sutured dural repair. METHODS The PEG hydrogel sealant was used at 11 different study sites in 111 patients with documented(More)
We investigated whether small-animal positron emission tomography (PET) could be used in combination with computed tomography (CT) imaging techniques for longitudinal monitoring of the injured spinal cord. In adult female Sprague-Dawley rats (n = 6), the ninth thoracic (T9) spinal cord segment was exposed by laminectomy and subsequently contused using the(More)
O1 The functional properties of paraspinal muscles in adolescents with idiopathic scoliosis (AIS): A systematic review of the literature Introduction: Exercise-based approaches exist; however, it is unclear whether these approaches are based on scientific findings in the literature on trunk muscle deficits in scoliosis that could be targeted by exercises.(More)
BACKGROUND Aneurysmal subarachnoid hemorrhage (aSAH) is a condition affecting relatively young patients and has high rates of morbidity and mortality. Online health communities have emerged to fill the void for patient advocacy and information, allowing individuals with shared experiences and chronic disorders to connect. OBJECTIVE We have developed an(More)