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Biomedical subjects

T L Hardy

Publications and source records attributed to T L Hardy.

29 records · Page 2Linked to original sources
PubMed1980

Cerebellar stimulation in four patients with cerebral palsy.

Six Medtronic 1743 dual-channel cerebellar stimulators were implanted in 4 patients between September 1977 and January 1979. Evaluations were conducted in both a blind and nonblind fashion. Significant differences between the evaluations occurred. The operating surgeon, physical therapists, referring neurologist and the patients' families all overestimated the degree of improvement, compared to a blind evaluation by a noninvolved group of neurologists. The concomitant occurrence of significant complications raised serious questions of the advisability of cerebellar stimulation for cerebral palsy.

Adolescent↗
PubMed1980

Organization and topography of sensory responses in the internal capsule and nucleus ventralis caudalis found during stereotactic surgery.

With the aid of a computer graphic technique, data gathered from exploratory stimulation of the diencephalon in 130 stereotactic operative procedures indicate that some sensory fibers in the capsule are parallel to motor fibers at basal thalamic levels and occupy a position medial to motor fibers. In addition, stimulus responses which probably represent thalamocortical projections from S II somesthetic thalamus were found to lie in a capsular zone rostral to the motor bundle. The organization of S I somesthetic thalamus was found to agree with the previous finding of Tasker et al. and some of these fibers project within the motor bundle to cortical motor areas.

Adolescent↗
PubMed1979

The position and organization of motor fibers in the internal capsule found during stereotactic surgery.

Data gathered from exploratory stimulation of the diencephalon in 130 stereotactic operative procedures have been studied, with the aid of a computer graphic technique, to show the position and topography of motor responses in the internal capsule. The results obtained indicate that pyramidal fibers are organized into a rostral-caudal face-arm-leg sequence and occupy a short compact band in the caudal third of the posterior limb of the internal capsule. This is in contrast to previous concepts of the position of these fibers in the capsule.

Adolescent↗
PubMed1979

Position of the medial internal capsular border in relation to third-ventricular width.

The position of the medial internal capsular border (lateral thalamic border) in relation to the width of the third ventricle is of considerable importance to stereotactic surgeons. Close estimation of its position from anteroposterior roentgenograms diminishes the possibility of multiple brain penetrations in an attempt to find it by electrophysiological methods. By correlating the position of the medial capsular border found by a stimulation technique, with the width of the third ventricle, in a series of 130 patients, reliable ranges of its position were obtained.

Adolescent↗