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document
[ Effectiveness of morphine by periarticular injections after shoulder arthroscopy ] . Peripheral opioid receptors have been found in inflamed synovia and the analgesic effect of intra-articularly administered morphine after arthroscopic knee surgery has been proven . There is controversy about efficacy of intraarticular morphine after shoulder arthroscopy . Thirty-two patients with impingement syndrome underwent subacromial decompression in the course of arthroscopic shoulder surgery . At the end of the operation morphine ( 5 mg ) or saline was injected periarticularly . Pain intensity ( rest and passive mobilisation ) was recorded after recovery and after 1,2,4 , and 24 hours ( Numeric Rating Scale ) ; the use of rescue medication ( piritramide by patient controlled analgesia ) was noted . No relevant pain reduction was apparent in the morphine group . Piritramide consumption was identical in both groups ( 19.7 +/- 16 mg vs. 19.8 +/- 19 mg ) . We conclude that periarticularly administered morphine in arthroscopic subacromial decompression in the dosage applied in this study does exert no relevant analgesic effect . This is possibly due to the fact that either subacromial tissue , despite of chronic inflammation , does not show the same reagibility as synovia or it is a problem of the nearly complete resection of the subacromial bursa .
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Intervention_Pharmacological
morphine
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Intervention_Pharmacological
morphine
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Intervention_Pharmacological
morphine
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Intervention_Surgical
arthroscopic shoulder surgery
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Intervention_Pharmacological
operation morphine ( 5 mg )
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Intervention_Pharmacological
saline
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Intervention_Pharmacological
piritramide
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Intervention_Pharmacological
Piritramide
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Intervention_Pharmacological
morphine
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Outcome_Pain
Pain intensity ( rest and passive mobilisation )
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Outcome_Other
rescue medication
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Outcome_Other
piritramide
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Outcome_Other
patient controlled analgesia
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Outcome_Pain
pain reduction
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Outcome_Other
Piritramide consumption
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Outcome_Other
analgesic effect