Randomized Controlled Trial
Post-operative analgesia following total knee arthroplasty: comparison of low-dose intrathecal morphine and single-shot ultrasound-guided femoral nerve block: a randomized, single blinded, controlled study.
Eur Rev Med Pharmaco. 2010 Jul 1;14(7):589-96.
Randomized Controlled Trial
Postoperative analgesia and early rehabilitation after total knee replacement: a comparison of continuous low-dose intravenous ketamine versus nefopam.
Eur J Pain. 2009 Jul 1;13(6):613-9.
Randomized Controlled Trial
Intravenous parecoxib sodium foracute pain after orthopedic knee surgery.
Am J. Orthop. 2002 Jun 1;31(6):336-43.