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Postoperative C-reactive protein levels correlate with reduced spinal column mobility after median sternotomy: a
Akihiro Ito1,2, Tsuyoshi Hara1,2, Hiroshi Irie2
1Department of Physical Therapy, School of Health Science, International University of Health and Welfare, Tochigi, Japan.
Background:
The sternum is connected to the spinal column via the ribs, forming the thorax. Therefore, it is necessary to consider the effect of a midline sternotomy on the spinal column, but no in vivo studies have been conducted to date. We investigated the changes in the range of motion of the spinal column before and after midline sternotomy and the perioperative factors that have the greatest influence.
Methods:
The participants were patients who had undergone cardiac surgery through a standby midline sternotomy. Spinal range of motion in forward flexion was measured before and after surgery. The following perioperative factors were investigated: operating time, days to postoperative measurement, C-reactive protein (CRP) measurement on the third postoperative day, the day of the start of bed release, and the stage of bed release progression on the second postoperative day. Statistics were compared between the two groups before and after surgery for each factor. Multiple regression analysis (forced entry method) was then performed with the change in spinal range of motion, which showed statistical differences between the preoperative and postoperative groups, as the dependent variable and each perioperative factor as the independent variable.
Results:
The study included 93 patients. Postoperatively, there was a significant decrease in thoracic spine range of motion. Multiple regression analysis showed that an increase in CRP on the third postoperative day was responsible for the decrease in thoracic range of motion (β=-0.30, P<0.01).
Conclusions:
After median sternotomy, thoracic spine range of motion was decreased and correlated with postoperative inflammation.
