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26 Dailey, Andrew T.; Brodke, Darrel S.Inter- and intraobserver reliability of computed tomography in assessment of thoracic pedicle screw placementStudy Design. Reliability study of computed tomography imaging in 12 cadaver specimens instrumented with titanium or stainless steel thoracic pedicle screws. Objective. To evaluate inter- and intraobserver reliability of computed tomography scan in determining the accuracy of thoracic pedicle sc...Thoracic pedicle screw; Placement; Assessment; Computed tomography2003
27 Dailey, Andrew T.Magnetic resonance neurography for cervical radiculopathy: a preliminary reportMAGNETIC RESONANCE NEUROGRAPHY was used to directly image cervical spinal nerves in patients with clinical and radiographic evidence of cervical radiculopathy. A magnetic resonance imaging phased-array coil system was used to obtain high-resolution coronal T1-weighted spin echo, coronal/axial T2-wei...1996
28 Couldwell, William T.Practicing neurosurgery in the United StatesCompared with other developed countries, the U.S. spends a high percentage of its gross domestic product on healthcare: 16 percent in 2005, up from 15 percent in 2004. This is far and away the greatest percentage of GDP spent on healthcare of any nation for which such data is collected. However,...2008-01-01
29 Dailey, Andrew T.Guidelines for the performance of fusion procedures for degenerative disease of the lumbar spine. Part 11: interbody techniques for lumbar fusionStandards. There is insufficient evidence to recommend a treatment standard. Guidelines. In the context of a single-level stand-alone ALIF or ALIF with posterior instrumentation, the addition of a PLF is not recommended as it increases operating room time and blood loss without influencing the like...Fusion; Lumbar spine; Degenerative disease; Lumbar fusion; Interbody techniques2005
30 Couldwell, William T.Radiographic features of tumefactive giant cavernous angiomasGiant cavernous angiomas (GCAs) are very rare, and imaging features of GCAs can be very different from those of typical cavernous angiomas (CAs), making them a diagnostic challenge. The purpose of the study was to evaluate the radiographic features of GCAs, with an emphasis on the differentiating fe...Cavernous angiomas; Cavernous malformations; Tumefactive2008
31 Couldwell, William T.Clinical and radiographic response in a minority of patients with recurrent malignant gliomas treated with high-dose tamoxifenPREVIOUS WORK HAS demonstrated the importance of the Protein Kinase C (PKC) signal transduction system in regulating the growth rate of malignant gliomas in vitro. Tamoxifen inhibits PKC in a minority of malignant gliomas within the micromolar concentration range in vitro, a property distinct from...Tamoxifen; Protein kinase C; Glioma; Brain neoplasm; Chemotherapy; Glioma1993
32 Dailey, Andrew T.Guidelines for the performance of fusion procedures for degenerative disease of the lumbar spine. Part 5: correlation between radiographic and functional outcomeStandards. There is insufficient evidence to recommend a treatment standard. Guidelines. There is insufficient evidence to recommend a treatment guideline. Options. It is recommended that when performing lumbar arthrodesis for degenerative lumbar disease, strategies to achieve successful radiogr...Lumbar fusion; Lumbar spine; Degenerative disease; Practice guidelines; Functional outcome; Radiographic outcome2005
33 Kestle, John R. W.Late rapid deterioration after endoscopic third ventriculostomy: additional cases and review of the literatureObject. Late rapid deterioration after endoscopic third ventriculostomy (ETV) is a rare complication. The authors previously reported three deaths from three centers. Three other deaths and a patient who experienced rapid deterioration have also been reported. Following the death at the University ...Endoscopic third ventriculostomy; ETV; Pediatric neurosurgery; Adverse outcome2006
34 Kestle, John R. W.Potentially useful outcome measures for clinical research in pediatric neurosurgeryThe choice of outcome (or outcomes) and their measurement are critical for a sound clinical trial. Surgeons have traditionally measured simple outcomes such as death, duration of survival, or tumor recurrence but have recently developed more sophisticated measures of the effect of an intervention. M...Pediatric neurosurgery2005
35 Schmidt, Meic H.Lumbosacral ependymomas: a review of the management of intradural and extradural tumorsObject. The goal of this study was to review the management of intra- and extradural ependymomas. Spinal ependymomas most commonly occur as intramedullary tumors throughout the spinal axis. In the lumbosacral region, ependymomas are most commonly associated with the conus medullaris and cauda equina...Intradural ependymoma; Extradural ependymoma; Lumbosacral lesion2003
36 Dailey, Andrew T.Guidelines for the performance of fusion procedures for degenerative disease of the lumbar spine. Part 3: assessment of economic outcomeStandards. There is insufficient evidence to recommend a standard for assessment of economic outcome following lumbar fusion for degenerative disease. Guidelines. There is insufficient evidence to recommend a guideline for assessment of economic outcome following lumbar fusion for degenerative dis...Lumbar fusion; Lumbar spine; Degenerative disease; Practice guidelines; Treatment outcome; Economic outcome2005
37 Kestle, John R. W.Multicenter prospective cohort study of the Strata valve for the management of hydrocephalus in pediatric patientsObject. Previous reports suggest that adjustable valves may improve the survival of cerebrospinal fluid shunts or relieve shunt-related symptoms. To evaluate these claims, the authors conducted a prospective multicenter cohort study of children who underwent placement of Strata valves. Methods. Pat...Ventriculoperitoneal shunt; Strata valve; Adjustable valves; Pediatric neurosurgery2005
38 Couldwell, William T.Porous polyethylene implant for cranioplasty and skull base reconstructionObject. Cranial reconstruction after skull base surgery is important for restoration of function and cosmesis. The authors describe their experience with the Medpor porous polyethylene implant for cosmetic cranioplasty and reconstruction after skull base surgery. Methods. Medpor, a biocompatible i...2004
39 Couldwell, William T.Rathke cleft cyst intracystic nodule: a characteristic magnetic resonance imaging findingObject. The fluid content of Rathke cleft cysts (RCCs) displays variable appearances on magnetic resonance (MR) images and can appear indistinguishable from other intrasellar or suprasellar cystic lesions. Intracystic nodules associated with individual RCCs have been noted, but to date their signifi...2005
40 Couldwell, William T.Transsphenoidal microsurgical treatment of Cushing disease: postoperative assessment of surgical efficacy by application of an overnight low-dose dexamethasone suppression testObject. Transsphenoidal adenomectomy with resection of a defined pituitary adenoma has been the treatment of choice for CD for the last 30 years. Surgical resection, however, may not always result in long-term remission of CD. This is particularly important in light of the high risk of morbidity and...2003-01-01
41 Couldwell, William T.Predictive value of serum prolactin levels measured immediately after transsphenoidal surgeryObject. Prolactin-secreting pituitary adenomas may be managed by surgery, medication, radiotherapy, or observation. The authors reviewed a consecutive series of patients who were followed for at least 5 years after surgery to assess the prognostic significance of preoperative factors (tumor size and...Prolactin; Transsphenoidal surgery; Pituitary adenoma; Prolactinoma; Transsphenoidal approach2002
42 Kestle, John R. W.Effect of hyperventilation on regional cerebral blood flow in head-injured childrenObjectives: To study cerebral blood flow and cerebral oxygen consumption in severe head-injured children and also to assess the effect of hyperventilation on regional cerebral blood flow. Design: Prospective cohort study. Setting: Pediatric intensive care unit at a tertiary-level university childre...Cerebral blood flow; Head injury; Jugular venous oximetry; Xenon computed tomography scan; Head-injured children1997
43 Schmidt, Meic H.Role of thoracoscopic spinal surgery in the management of pyogenic vertebral osteomyelitisStudy Design. Case report, operative technique. Objectives. Vertebral osteomyelitis is frequently associated with elderly and debilitated patients who have significant medical comorbidities. If surgical debridement is contemplated, an open anterior approach like a thoracotomy can be associated with...Thoracoscopic spinal surgery; Pyogenic vertebral osteomyelitis2004
44 Schmidt, Meic H.Pigmented villonodular synovitis associated with pathological fracture of the odontoid and atlantoaxial instabilityPPigmented villonodular synovitis (PVNS) is a proliferative disorder of the synovium with a predisposition for the appendicular skeleton. Rarely PVNS can arise from the spine, where this disorder usually presents with localized or radicular pain secondary to involvement of the posterior elements. Th...Atlantoaxial instability; Pigmented villonodular synovitis; Odontoid2007
45 Dailey, Andrew T.Guidelines for the performance of fusion procedures for degenerative disease of the lumbar spine. Part 10: fusion following decompression in patients with stenosis without spondylolisthesisStandards. There is insufficient evidence to recommend a treatment standard. Guidelines. There is insufficient evidence to recommend a treatment guideline. Options. 1) In situ posterolateral lumbar fusion is not recommended as a treatment option in patients with lumbar stenosis in whom there is n...Fusion; Lumbar spine; Degenerative disease; Lumbar fusion2005
46 Kestle, John R. W.Value of postoperative surveillance imaging in the management of children with some common brain tumorsThe rationale for obtaining surveillance computerized tomography (CT) scans or magnetic resonance (MR) images in pediatric patients with brain tumors is that early detection of recurrence may result in timely treatment and better outcome. The purpose of this study was to investigate the value of sur...Brain neoplasm; Brain tumors; Computerized tomography scanning; Surveillance; Postoperative surveillance1996
47 Couldwell, William T.; Gillespie, David L.Ubiquitous expression of cyclooxygenase-2 in meningiomas and decrease in cell growth following in vitro treatment with the inhibitor celecoxib: potential therapeutic applicationObject. Meningiomas are the second most common symptomatic primary central nervous system tumor in adults. Findings of epidemiological studies link meningiomas with a history of head trauma, indicating a causal relationship between the inflammatory response and meningioma tumorigenesis. Cyclooxygena...2005-09
48 Couldwell, William T.Man for all seasons: W.W. KeenWILLIAM WILLIAMS KEEN was the catalyst for the advent of neurosurgery in the United States. He served in the Civil War and collaborated with Silas Weir Mitchell in studying injuries sustained to the nervous system. These studies culminated in the publication in 1864 of Gunshot Wounds and Other Inj...Brain tumor2002
49 Kestle, John R. W.Change in ventricular size and effect of ventricular catheter placement in pediatric patients with shunted hydrocephalusOBJECTIVE: The multicenter, randomized pediatric cerebrospinal fluid shunt valve design trial found no difference in the rate of shunt failure between a standard valve, a siphon-reducing valve (Delta; Medtronic PS Medical, Goleta, CA), and a flow-limiting valve (Orbis Sigma; Cordis, Miami, FL); ho...Shunt failure; Valve design; Ventricular size; Ventricular catheter placement1999
50 Schmidt, Meic H.Assessment of the reliability of the Enneking and Weinstein-Boriani-Biagini classifications for staging of primary spinal tumors by the spine oncology study groupDespite advances in the treatment of primary spinal tumors in recent years, the with respect to the feasibility of oncologically appropriate surgical treatment and the selection of the optimal surgical approach. These tumors are relatively rare, comprising 11% of all primary musculoskeletal tumors a...2009-01-01
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