Research Article

Positive Preemptive Analgesia Effectiveness of Pregabalin Combined with Celecoxib in Total Knee Arthroplasty: A Prospective Controlled Randomized Study

Table 1

General characteristics of the patients.

Placebo (n = 36)Celecoxib alone (n = 38)Pregabalin alone (n = 38)Combination (n = 37)Statistics value

Age, years62.6 ± 7.961.5 ± 7.164.9 ± 7.763.0 ± 6.5F = 1.3850.251
Sex, male/female9/2710/288/308/29χ 2 = 0.4120.938
BMI24.7 ± 3.824.9 ± 4.125.3 ± 4.325.4 ± 4.1F = 0.2450.865
Duration of surgery (min)883 ± 22.184.6 ± 23.284.6 ± 27.289.9 ± 22.6F = 0.3260.806
ASA (I/II/III)2/24/101/25/123/27/81/23/13χ 2 = 3.1880.801
Preoperative pain upon movement (VAS)6.15 ± 1.146.51 ± 1.036.69 ± 1.236.36 ± 1.17F = 1.5010.217
Preoperative pain at rest (VAS)3.03 ± 1.263.30 ± 1.173.39 ± 1.423.28 ± 1.18F = 0.5640.640
HSS score41.5 ± 4.540.3 ± 3.839.5 ± 4.539.2 ± 4.3F = 2.0920.104

ASA, American Society of Anesthesiologists. HSS score, hospital for special surgery rating scale. VAS, visual analog scale (0: no pain to 10: worst possible pain); Pain upon movement: pain upon maximum flexion. Difference is significant at the level.