Abstract
Background: To compare the analgesic efficacy of transdermal Diclofenac patch (100 mg) with intramuscular Diclofenac sodium (75 mg) for postoperative analgesia and to know the side effects of transdermal Diclofenac patch.
 Methods: 60 ASA I and II patients, of either sex, aged 15 and above, scheduled for lower limb surgery under subarachnoid block were included in the study. All were allocated randomly by computer generated randomization sheet into two groups of 30 each. Subarachnoid block was administered using 0.5% hyperbaric Bupivacaine. Participants in the study group were applied with a transdermal Diclofenac patch containing 100 mg of Diclofenac diethylamine at the beginning of the surgery. In the control group 75 mg of Diclofenac sodium was given intramuscularly half an hour before the end of surgery. Pain was assessed postoperatively using visual analogue scale. Injection Tramadol 2 mg was administered intramuscularly as rescue analgesia. The data obtained was analyzed using chi - square test and unpaired student’s ‘t’test.
 Results: The mean time at which rescue analgesia was administered in the control group was 7 hours 28 min and in study group was 20 hours 6min.The time at which rescue analgesics were required in the study group was significantly prolonged (p<0.0001). The amount of Inj. Tramadol required as rescue analgesia in the control group was 189.33 mg. ± 16.38 mg. and in study group it was 97 mg. ± 7.24 mg and this was found to be statistically significant (p<0.0001). When the side effects were compared they were not significant.
 Conclusions: Based on the results obtained we conclude that, the intraoperative application of 100 mg transdermal Diclofenac diethylamine patch significantly prolongs the time at which patient requires rescue analgesia without any significant side effects. Rescue analgesic requirement was also significantly lower in the study group.
Highlights
Pain has been a major concern of mankind since the very beginning and it has been the object of ubiquitous efforts to understand and treat it.Today the proper management of pain remains one of the most important pressing issues of society in general and the medical community in particular [1,2,3,4,5,6]
The mean time at which rescue analgesia was administered in the control group was 7 hours 28 min and in study group was 20 hours 6min.The time at which rescue analgesics were required in the study group was significantly prolonged (p
Based on the results obtained we conclude that, the intraoperative application of 100 mg transdermal Diclofenac diethylamine patch significantly prolongs the time at which patient requires rescue analgesia without any significant side effects
Summary
Pain has been a major concern of mankind since the very beginning and it has been the object of ubiquitous efforts to understand and treat it.Today the proper management of pain remains one of the most important pressing issues of society in general and the medical community in particular [1,2,3,4,5,6]. If surgery is an injury, allowing the patient to suffer postoperative pain is like adding insult to injury. Efficient management of postoperative pain is as important as management of intra operative pain postoperative pain is not simple due to tissue injury alone but is the final result of various neurophysiological interactions. This makes efficient postoperative pain management much more difficult and an ideal pain management programme is still elusive [7]. Methods: 60 ASA I and II patients, of either sex, aged 15 and above, scheduled for lower limb surgery under subarachnoid block were included in the study. The data obtained was analyzed using chi - square test and unpaired student’s ‘t’test
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