The controversy surrounding nerve thermal injury

Conference abstracts Detection

rate of aneurysms

was 60%

in each group.

and grows slowly over 48

< 3 mm. 70% < 5 mm, 97% > 5 mm. Small

No significant

difference

in outcome

or

always penicillin

(2mm

post-operative

neck

was found

be-

or less)

inferiorly

rysms at the posterior

directed

information ferent

was obtained of which

artifacts

nique

including

tions

to the

and pitfalls

discectomy effective

the acthis and

technique

will be

University

Medical

is the direct

morbidity

and

great

expense

to individuals

State.

Recrnt

investigations

there

is a genetic which

upon

impinge.

We

have

addiction

begins

pleasant

been

habits

drugs

memc,l-y the

presence

Ethanol

induced

meanr was reduced

system

and

phosphonovaleric

by (+)

acid.

thought

(5.9%)

effects

essential

poor

results.

either

12 patients

M.K. Hunn, Dunedin

Neurosurgical

results.

coordination,

Frequent

were no deaths.

Hospital,

The operation cervical

has been good ciated

discectomy

reported

results

cervical

In recent

without

without

O\er a three

the morbidity

year period,

G. Martin,

asso-

a subgroup consisting

the results

during

injury

t‘ibres.

ind,;ced

angiopathy,

sponsible

during for

the

11 out

severr

reduction

relative

sparing

abscesses

nised in the 1980s. though the gl,ms,

dental in

the 3 year period.

Microaerophilic,

a

also

1.

the

in re-

It was only widely recog-

It lives mainly

but

undergoing

the

198Os, being

of discectomy

in 1956.

WdS

first described

in treth,

root canals \ragina

around

and throat, and

faeces.

it needs CC jv for culture

Clin. Neuroscience

loss of

from

thiy difl ant1

and ultimatrh

in nerve blood flow. The ol’u~~mv~linat~d of thrir

The

pathologic;tl

unmvelinated coupled

grrater

fihres is resistancr

dictions

explains in the

to thermal

susceptibility

ncrvc‘

hyprrthermic

vulnci-abilitc

tibres

with thr

ischacmia.

abscess

srlective

to ischaemia.

myrlinated

of 28 intracranial

without fusion was studied,

(39%).

or sinusitis

of cerebral

degeneration.

inrrrlediatelyand

giving rise to a progrc,ssi\e

in carious

block immr-

an

in I he \‘;,~ancrvorum.

are as

Hospital

;I

that this results from a heat-

fusely manifext

techniqurs.

bv

E\idcncc

f1-ame

of

mouths

conduction

result in a delavcd.

myelinated

showed

injury, first

lower grad? nerve thermal

study suggests

modern

originating

cause

for radiculopathy

of all patients

level operation

infected

Wellington

for degenerative

of 34 patients

by onr sllrgeon

imaging

Wellington

commonest

discectomy

in Dunedin.

with fusion and discectomy

using more

Department

Neurosurgery. teeth,

101 patients

cervical

fusion

cervix-al disc disease, To compare

and current

StrPptococr~s millti,

anterior

with or without

single

fusion equally

with fusion.

underwent

in-

Streptococcus milleri, carious teeth, infected mouths, sinusitis and cerebral abscess

fusion

years ante-

to produce

ventriculographv series

fibres

trmperaturcs,

Bp contrast,

side

havct physi-

to rat sciatic.

to thermal

diate and selecti\rt. axonal

Results in this series stereotactic

nerve

as a rcvcrsiblr

and. at higher

likely a rcstllt

Dunedin

of anterior

is well established. rior

and air contrast frames

transient confusion,

Wr

investigation

injtlrv

greatrrlrlilnrl-ahilih

still achieved

drowsiness,

ofcompre-

;I c,ornbined

rhernlal

im-

ner1.c.

manifest

(94.1%) or a good

md

otnervc

studies.

and morphological

LTnmvelinatrd a

facial droop and dysarthria.

good as other

Unit,

23

role in

controversial,

to an absence

undertaken

of localized

who had bilateral

performed.

using the old Hughes’

Anterior cervical discectomy with and without fusion.

therefore

effects

rrmain

pathological

Hence

an excellent

injut-irs

ological

of ma-

fractional

clinically

the physiological

hensive

results,

treatment

of tic- douloureux

pain

procedures

clin-

patients

has also had a useful

relatrd

tremors.

burned

Percutaneous

perhaps

17 proce-

excellent

in severely

to

secondary

Dunedin.

spasm. Altho@

thermal

musculorum

School.

Treatmrllt

hemifacial

achievedgoodand’iof119

include

There

memory.

discharging

ill,jur-y has particular

dise’ase.

portant,

for torti-

of 112 of 119 procedures

excellent

to be the basis of

Of the

wzs

of 119 (74.8%))

thalamotomies

blocking

lignant the

one

achieved

outcome.

in long term

may brcomc

and in the hvperthrrmic thermolysis

one for thalamic

achieved

achieved

was were of

and the remaining

for tremors

total is

Z-amino-5-

a drug

the NMDA synapses involved potentiation,

of

teeth

as chroilic

D. Xu, NVnrn-ology Unit.

cal rrlevdnce

or

dystonia

sclerosis,

of 119 (19.3%,)

water.

the dopaminergic

and

multiple

Eighty-nine

in

which

for

dures for benign

and

in thr

will rCd\lce this inci-

carious

Nerve thermal

treatment

4 for tremors

syndrome

the effect

antagonist

to disinhibit

reward

of

by a variety

one

deformans.

that

and .Str$. i .‘L per million

an improvement

Medical

uncontrolled

by medication.

24 procedures.

collis.

the

from 1972 to 1992 inclusive

controlled

other

by the drug ritanserin,

an S2 berotonergic thought

poorly

per-

movement

the

for ethanol

of ethanol

intake

procedures

tremors

motivation

preference

upon

thalamotomy

mainly for involuntary

for

memories.

assessed

modifying

of living

Otago

review of 122 functional

Parkinsonian

testing

Only

standard

M. Pollock,

Auckland.

performed

with the formation

Our first experiments of

Hospital,

98/ 122 (80.3%,)

model,

and pleasant

Unit,

Public

made. The majority,

that

veal;

is about

per year.

when

1Or PO vears a~

prr

The controversy surrounding nerve thermal injury

disorders

events

a rat

3 per million

as unacceptable

of

basis to such addiction

using

associated

of

and to the

of all tvpen of bacterial constant

H.T. Lim, G. MacDonald,

stereotactic

show

has been

milhi incidence

radiculo-

and

environmental

hypothesis,

for cervical

cause

mortality

incidence

ears now are.

formed addiction

much

The abscess about

is a safe and

is near]\

It

but not to the

Functional stereotactic thalamotomy: the Auckland Hospital experience

A retrospective

School,

Dunedin. Ethanol

cervical

pathy and avoids the morbidity

Auckland

Department,

of Otago

fusion

operation

Neurosurgical

N. Lin,

Neurophysiology

without

anterior

hours.

sensitive

later cephalosporins.

dence,

modifica-

The basis of ethanol addiction Hubbard,

that

with fusion.

discussrd.

J.I.

pain

of the tech-

recommended

current

We conclude

the

increased

detection,

were 17 patients

tween the two groups.

Additional

algorithms,

curac!~ of aneurysm specific

site

by using 2 dif-

reconstruction

combination

aneu-

communicating

were most likely to be missed.

There

fibrrs

of injuI-y.

of large

to secondarl

the previous

litrrattirc.,

contra-

cone-r!-rling

studica.

Delayed recognition of atlantoaxial subluxation J.N.

Segelov,

Roy11 Prince

Neurosurgical

For two yeal-s a plainrrl ing

Volume 1

Brishanr

I Y-year-old secretary

of’ neck pain xitl a

Unit.

.Alfrrd l%ospital,

Illot~ll‘

Number 3

stiffness

vehicle

July 1994

confollow-

accident.

211