Phillip R. Cooper

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The reported results of treatment of intramedullary spinal cord tumors (IMSCT) are difficult to interpret because of heterogeneous management strategies, small numbers of patients, and short periods of follow-up. In 1985 we published the early results of operative treatment of 29 patients with IMSCT and were cautiously optimistic that aggressive operative(More)
Operative management of the patient with cervical spinal instability depends on the specific anatomy and location of the injury. The unique features of the atlanto-axial complex require stabilizing procedures that are quite different from those used in the subaxial spine. A clear idea of the etiology of the instability, a definition of the pathological(More)
Thirteen patients with acute subdural and epidural hematomas were found to have fresh, unclotted blood at the time of surgical decompression several hours after injury. Computed tomographic (CT) scans of these patients demonstrated areas of hyperdensity, corresponding to clotted hematoma, admixed with areas of isodensity, corresponding to liquid blood.(More)
The management of patients with intramedullary spinal cord tumors is controversial. In the past, these tumors have often been treated with biopsy or subtotal removal followed by irradiation--a therapy that is usually associated with early tumor recurrence and progressive neurological impairment. In an attempt to improve on the outcome of patients with(More)
OBJECTIVES We evaluated the specific pattern of pre- and postoperative neurological signs and symptoms and functional results in patients with cervical spondylotic myelopathy who underwent anterior decompressive operations. Additionally, we sought to determine which findings had predictive value for surgical outcome. METHODS We retrospectively reviewed(More)
Although posterior plates are increasingly used to manage cervical spinal instability, long-term follow-up evaluation of patients with a critical analysis of efficacy and complications has not been reported. The authors have retrospectively analyzed the outcome in 44 consecutive patients (37 males and seven females, age range 16 to 80 years) treated with(More)
A prospective double-blind study of the effects of dexamethasone administration on the outcome of patients with severe head injuries was performed. Patients were stratified for severity of neurological injury and were treated with placebo, low-dose dexamethasone (16 mg/day), or high-dose dexamethasone (96 mg/day) for a period of 6 days. Outcome was(More)
Although acute subdural hematoma continues to be one of the more common conditions neurosurgeons are called upon to treat, mortality rates continue to be quite unsatisfactory. Hemicraniectomy with wide decompression of the swollen brain was devised for the condition in 1971 (JNS 34:70-76). Initial results were quite encouraging with a 40% overall survival(More)
CSF dynamics were determined as a function of intracranial pressure in patients with pseudotumor cerebri. Servocontrolled variable rate lumbar infusions were used to determine net CSF-absorptive capacities and resting pressures in 10 patients; serial studies were done in 5 of the patients. Nearly all of the patients had abnormally low CSF-absorptive(More)
Posterior stabilization of cervical spine fractures and subluxations with metal plates and screws is commonly used in Europe, but has rarely been employed by neurosurgeons in North America, where stabilization has usually been achieved with wires supplemented by bone grafts or acrylic. The limitations of the more commonly used stabilization techniques(More)