Effect of Mode of Femoral Nerve Analgesia on Quadriceps Muscle Strength

• Status: Unknown status
• Trial end date: 2015-07-01
• Target enrollment: 0
• Participant gender: All

Summary

Quadriceps muscle strength is an important determinant of quality of recovery in elderly patients after total knee arthroplasty. We try to compare the quadriceps muscle strength change between 0.2 % ropivacaine continuous fixed femoral infusion and patient controlled femoral analgesia group.

• Phase: N/A
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Seoul National University Hospital
• Treatments: Ropivacaine

Criteria

Inclusion Criteria:

• > 21, or < 80 years old- men and women

• primary, unilateral total knee replacement surgery

• spinal anesthesia

Exclusion Criteria:

• general anesthesia

• secondary knee replacement surgery

• patient refusal for continuous femoral nerve analgesia technique

• abnormal coagulation profile, e.g. Prothrombin time international normalized ratio > 1.5, activated partial thrombin time > 50 sec

• within 5 days after termination oral antiplatelet agent

• Body mass index>45

• impaired renal function

• infection near femoral area

• previous injury near femoral area

• neurologic dysfunction in lower limb

• previous adverse drug reaction for local anesthetics

• American society of anesthesiologists (ASA) class III, iV or V