Search Results

You are looking at 1 - 10 of 766 items for :

  • "adjacent segment" x
Clear All
Restricted access

Franklin Robinson and Gerald F. Whalen

for 72 hours with the indwelling catheter. If therapy is desired for a longer period, it is recommended that the tubing be changed and an adjacent segmental level be used. COMMENT This procedure has been successfully employed to provide continuous stellate ganglion block in cerebral thrombosis and in post-traumatic sympathetic reflex dystrophy of the upper extremity, and lumbar block in the treatment of thrombophlebitis, varicose ulceration, and intractable pain in the lower extremities. It is believed that the method affords an effective means of attaining

Restricted access

Robert L. Bell

exception of lifting heavy objects. The most recent roentgenogram (May 27, 1954) is reproduced in Fig. 4 . Fig. 4. Roentgenogram 4 years after discharge showing recalcification of the remaining portions of the implicated vertebra and fusion of adjacent segments. DISCUSSION Columniation of the centrum of a vertebra is commonly interpreted by roentgenologists as hemangioma. Seldom are such lesions of clinical significance. As stated, an impressive number of vertebral hemangiomata disclosed at autopsy have been recorded and regarded as incidental

Restricted access

Vinyon “N” as a Dural Substitute

An Experimental Study in the Monkey

Paul Teng and Irwin Feigin

the small area immediately beneath the suture line, where an adhesion to the granulomatous tissue was noted. Animal 4 was sacrificed 428 days after operation. The dural substitute was easily separated from the underlying cortex. Microscopic sections of the anastomotic area (end-to-end) revealed a granulomatous reaction like that described above. The adjacent segments of dural substitute were similarly infiltrated and there was a dense partially hyalinized connective tissue containing a few lymphocytes and a few pigment-containing phagocytes on its inferior aspect

Restricted access

W. Pallie

and include the first thoracic roots, there is a total of 14 possible anastomoses or sets of anastomoses between adjacent rootlets of homolateral segments of the spinal cord in this region. The frequency with which such connections were found in this series ranged from 3 at a minimum to a maximum of 8 in any single case. These “transsegmental” rootlet anastomoses are sometimes single filaments connecting the neighboring rootlets of adjacent segments ( Figs. 1 and 2 ). Connections are found in positions near the attachment of the rootlets to the cord, or more

Restricted access

Henry D. Messer, Lawrence Strenger and Henry J. McVeety

medicine dropper. The watery substance flowed over the lesion and the adjacent segment of vessel. A tampon of autogenous fascia was applied about the lesion (care being exercised in not touching directly the treated surfaces by surgical instruments) . After 20 seconds the temporary arterial clip was removed. The vessel pulsated well and no bleeding was encountered. The total time of temporary occlusion was 4 minutes. Postoperative course was uneventful. The hemiparesis tended to clear together with the dysphasia. Postoperative angiography ( Fig. 2 ) performed on

Restricted access

Mansho T. Khilnani and Bernard S. Wolf

to T3, the cord showed either no significant difference between adjacent segments or showed a progressive decrease in diameter. In general, any difference greater than 3 mm. between adjacent segments should be considered suspicious of an abnormality. The only exception to this was C7-T1. At this level, C7 exceeded T1 by 4 mm. in 6 of 49 cases. Fig. 3. Series of bar graphs illustrating the differences in mm. between the widths of adjacent segments of the spinal cord in the cervical and upper dorsal region. The figures on the ordinate and on each bar

Restricted access

C. G. Drake and A. L. Amacher

which still filled with blood. The perforating vessels had been preserved and could be seen in the bed in the midbrain and thalamus. The patient's recovery was uneventful except for an incomplete sensory loss throughout the left side. There was no paresis or visual field defect despite the failure of the posterior cerebral artery to fill beyond the suture line in the postoperative angiograms ( Fig. 3 ). Thrombosis had undoubtedly occurred in the stump of the aneurysm and adjacent segment of the parent vessel. The optic radiation and calcarine cortex must have been

Restricted access

Ian R. Griffiths

cord, following release of minor and strong compression. The SCBF rose above its precompression level and remained higher for 3 to 4 minutes. Similar changes were sometimes observed in adjacent segments. Reactive hyperemia is possibly implicated in disturbed permeability in the studies of Olsson et al., 24 and the dogs in our Group D. One feature of the present experiments was the localization of dye in the central artery walls and its immediate branches in the central gray matter. This occurred at the level of compression and both rostral and caudal to this

Restricted access

Experimental cervical myelopathy

Effects of ischemia and compression of the canine cervical spinal cord

Michael R. Gooding, Charles B. Wilson and Julian T. Hoff

✓ The authors report experiments designed to test the effect of regional ischemia induced by selective vascular ligations and anterior compression of the cervical cord at two adjacent segments (C-4, C-5) in the same dog. They conclude that local ischemia of the cervical cord, caused by local deformation, when superimposed on a regional reduction in spinal cord blood flow, accounts for the myelopathy of cervical spondylosis whether produced experimentally in animals or occurring naturally in man.

Restricted access

Yasuhiko Matsukado, Mamoru Yoshida, Tomokazu Goya and Koki Shimoji

space by the method described previously by Shimoji, et al.; 18 this method is identical to that of epidural anesthesia customarily applied in surgery. The evoked SEG was monitored by stainless steel wires, 150 µ in diameter, placed in the epidural space of the affected cervical segments and in the space 1 or 2 segments above. The wires were insulated from the tip up to 5 mm. The indifferent needle electrode was inserted into the supraspinous ligament of the adjacent segment to minimize interference from other sources. The accurate position of the electrodes was