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Table 1 Demographic and preoperative patient data

From: Comparison of the postoperative analgesic effect for infiltration between the popliteal artery and the capsule of the posterior knee and that of periarticular multimodal drug injection in total knee arthroplasty: retrospective study in the immediate postoperative period

CharacteristicIPACK groupPMDI groupP value
Number of patients5050 
Gender (male/female)2/480/500.516a
Age (years)69.3 ± 7.571.4 ± 6.50.118b
Height (cm)152.5 ± 6.5153.1 ± 5.80.588b
Body mass index (kg/m2)25.4 ± 3.125.3 ± 2.80.954b
Preoperative NRS7.4 ± 2.37.3 ± 3.50.138b
Preoperative KSSb52.6 ± 5.054.9 ± 6.50.093b
Preoperative knee flexion (°)126.2 ± 5.7127.1 ± 6.10.729b
Hypertension (%)28/50 (56)24/50 (48)0.141a
Diabetes (%)15/50 (30)18/50 (36)0.474a
  1. Values are presented as mean ± standard deviation
  2. IPACK infiltration between the popliteal artery and the capsule of the knee, KSS Knee Society Score, NRS numerical rating scale, PMDI periarticular multimodal drug injection
  3. aChi-square test; bindependent-samples t test