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Adequate post-operative pain management is essential in facilitating a patient's
recovery from spinal surgery.
The adverse physiological effects of insufficient pain control can be manifested
in many organ systems. The clinical effects include ventilation/perfusion abnormalities,
atelectasis, pneumonia, hyperglycemia, protein catabolism, vasoconstriction,
congestive heart failure, increased heart rate, arrhythmias, angina, myocardial
infarction, decreased immune function, increased incidence of thromboembolism,
ileus, and urinary retention. (102)
Patient-Controlled-Analgesia (PCA)
PCA has been shown to be more effective in pain management than
as-needed intramuscular injections. Patients using PCA reported lower levels
of post-operative pain and ambulated earlier than those receiving as-needed
intramuscular injections. (103)
PCA and Intrathecal Analgesia
PCA and intrathecal analgesia have been used in spinal surgery patients
with equal efficacy, but intrathecal analgesia can be more costly. (104,105)
Intrathecal administration of morphine prior to the close of the case can be
an effective method to control post-operative pain in the first 24-hours after
surgery. (106) Doses higher than 0.004-mg/kg were associated with lower respiratory
rates and higher CO2 levels. (107)
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