Comparison of the effects of intrathecal different dosage of levobupivacaine in elective day-case arthroscopy of the knee.
OBJECTIVE
To observe the motor and sensorial block characteristics with different dosage of levobupivacaine during spinal block for the patients undergoing day-case knee arthroscopy.


METHODS
Eighty, 80 ASA physical status I-II patients, undergoing day-case knee arthroscopy received 0.5% levobupivacaine; 7.5 mg in Group I, 10 mg in Group II, 12.5 mg in Group III and 15 mg in Group IV for spinal anesthesia. Maximum sensorial and motor block levels, sensorial and motor block durations, time to required readiness to surgery after block and side effects were recorded.


RESULTS
The time required to achieve readiness to surgery was longest and mean duration of sensory and motor block was shortest in Group I. The groups were similar in regards to the number of failed blocks requiring general anaesthesia (p > 0.05). First micturition and unassisted ambulation with crutches times were shortest in Group I (p < 0.01). Home discharge and first additional analgesic request time were similar in four group (p > 0.05).


CONCLUSIONS
The motor and sensorial block obtained with different spinal anesthesia dosages of 0.5% levobupivacaine were effective for day-case knee artroscopy. Although 7.5 mg is suitable for patients; 10, 12.5 and 15 mg could be used according to anesthetist experience without any side effects.
Onur
Ozlu
O
Yildirim Beyazid Research and Educational Hospital, Ankara, Turkey.
Sibel
Alkan Muruvvet
AM
Mustafa
Aksoy
A
Mehmet
Yalvac
Y
D000293:Adolescent; D000328:Adult; D000368:Aged; D000556:Ambulatory Surgical Procedures / Q000379:methods*; D000775:Anesthesia, Spinal / Q000379:methods*; D000779:Anesthetics, Local / Q000008:administration & dosage*; D001182:Arthroscopy; D002045:Bupivacaine / Q000008:administration & dosage / Q000031:analogs & derivatives; D005260:Female; D006801:Humans; D007717:Knee / Q000601:surgery*; D000077554:Levobupivacaine; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies
D000779:Anesthetics, Local; D000077554:Levobupivacaine; D002045:Bupivacaine