Search Results

You are looking at 1 - 10 of 26 items for :

  • By Author: Nashold, Blaine S. x
Clear All
Restricted access

Dislocation of the Atlas on the Axis

The Value of Early Fusion of C1, C2, and C3

Eben Alexander Jr., H. F. Forsyth, C. H. Davis Jr. and Blaine S. Nashold Jr.

in chronic rheumatoid arthritis and in acute pyogenic infections around the neck, as well as in trauma, the transverse ligament may rupture, allowing forward dislocation of the atlas on the axis. 24 Congenital absence of the odontoid process with excessive mobility of the atlas on the axis has been reported a few times. 17, 26, 35, 37 Reliable information is not available concerning the frequency of trauma to the upper cervical spine as the cause of immediate death. Life is incompatible with a severe crushing injury to the cervical spinal cord at the level of

Restricted access

Blaine S. Nashold Jr., William P. Wilson and D. Graham Slaughter

S evere pain evokes in man a variety of complex physiological and psychological events that are poorly understood. Our current knowledge of the neuroanatomical and physiological substrates for painful experiences have been gathered from clinical observations in humans or by inference from experiments with mute animals. This report concerns observations that have been made in persons suffering from severe chronic pain who were to undergo treatment for their pain by means of stereotaxic lesions localized in the dorsolateral tegmentum that would interrupt the

Restricted access

Blaine S. Nashold Jr., W. P. Wilson and D. G. Slaughter

exhibited marked emotional lability associated with bouts of crying and episodes of depression that required psychiatric treatment. Stereotaxic Procedure Two separate operative procedures were performed. At the first operation, a burr hole was made, and stereotaxic implantation of multiple chronic electrodes into the thalamus and midbrain carried out. The method of implantation and the results of stimulations in the midbrain and thalamus have been reported in detail. 14 At the second operation, a lesion probe was introduced through the previously placed burr

Restricted access

Blaine S. Nashold Jr. and D. Graham Slaughter

spasticity were evaluated by implanting chronic electrodes into the paramedian cerebellar region ( Table 1 ). In five patients, high frequency lesions were made in the region of the interpositus and dentate nuclei in an effort to relieve hypertonia, tremor, or the involuntary movements ( Table 2 ). The motor disorders studied included those of two patients with congenital athetosis, two with intention tremor, one with heredofamilial tremor, and one with a syndrome of flexor spasticity and arm tremor. TABLE 1 Estimated location of deep cerebellar electrodes in five

Restricted access

D. Graham Slaughter, Blaine S. Nashold Jr. and George G. Somjen

R ecently we have been exploring the therapeutic potential of stereotaxic ablation of the cerebellar dentate nucleus in man as a means of reducing hypertonicity associated with involuntary movements. 2 At the time of the stereotaxic surgery, microelectrode recordings of the electrical activity from the cerebellar cortex and the nuclei were carried out in three patients with infantile athetosis. Recordings were also made from implanted chronic macroelectrodes prior to electrical stimulation. This report presents the method and results of recording from the

Restricted access

Harry Friedman, Blaine S. Nashold Jr. and Peter Senechal

T reatment of the neurogenic bladder still constitutes one of the most challenging aspects in the care of the paraplegic patient. Despite improved general treatment in paraplegia, the commonest cause of death is related to renal failure, hypertension, and amyloidosis caused by chronic cystitis and pyelonephritis. 3, 18, 30, 31 In the main, the use of antibiotics and improved bladder and skin care have been the factors most responsible for longer survival. In the past, electronic techniques of direct electrical stimulation of the detrusor muscle or the

Restricted access

Dorsal column stimulation for control of pain

Preliminary report on 30 patients

Blaine S. Nashold Jr. and Harry Friedman

implantation of DCS in 30 patients and studied its effects on chronic pain. Clinical Material Thirty patients (17 males and 13 females) were followed for periods of 9 to 18 months; their ages ranged from 14 to 61 years. The duration of chronic pain varied from 8 months to 30 years; the etiologies of the pain are summarized in Table 1 . The pain was centered in the lower back or legs in most of the patients. Many of the patients had had previous surgery performed for ruptured intervertebral discs or unstable spine, and had undergone multiple operative procedures for

Restricted access

Bruno J. Urban and Blaine S. Nashold Jr.

D orsal column stimulation has been partially successful in relieving chronic pain of various etiology. However, long-term results have been disappointing and the failure rate may be as high as 70%. 3, 6, 8 Retrospectively, three main problems have been identified: 1) failure to achieve effective stimulation referred into the painful area of the body, 2) failure to derive pain relief from acceptable stimulation, and 3) failure to continue pain relief after initial successful stimulation. 8 This occurs in spite of careful patient selection and the use of

Restricted access

Blaine S. Nashold Jr. and Roger H. Ostdahl

initial results were encouraging enough to apply this treatment to three additional patients with intractable pain from other causes (Cases 13, 14, and 16, Table 1 ). One was a man with a gunshot injury of the brachial plexus; one was a woman suffering from a gunshot wound of the spine; and the third was a man with intractable chronic pain due to a previous pelvic tumor and subsequent complications. This preliminary report recapitulates the diagnostic and therapeutic aspects of brachial plexus avulsion injuries, and describes the method and results of this new

Restricted access

Blaine S. Nashold Jr., John B. Mullen and Roger Avery

. Nielson KD , Watts C , Clark WK : Peripheral nerve injury from implantation of chronic stimulating electrodes for pain control. Surg Neurol 5 : 51 – 53 , 1976 Nielson KD, Watts C, Clark WK: Peripheral nerve injury from implantation of chronic stimulating electrodes for pain control. Surg Neurol 5: 51–53, 1976 5. Picaza JA , Cannon BW , Hunter SE , et al: Pain suppression by peripheral nerve stimulation. Part II. Observations with implanted devices. Surg Neurol 4 : 115 – 124 , 1975 Picaza