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Table 3 ROM (mean ± SD) among MR TKA, SR TKA and healthy knees groups

From: Alterations of kinematics in knees after single versus multiple radius femoral prostheses total knee arthroplasty: a retrospective study

Parameters MR SR Healthy P
MR vs SR MR vs healthy SR vs healthy
Extension/Flexion ROM (°) 48.10 ± 9.03 44.23 ± 10.54 47.32 ± 7.60 0.489 0.154 0.612
Internal/External rotation ROM (°) 3.86 ± 2.33 3.41 ± 2.40 5.37 ± 4.35 0.707 0.247 0.228
Adduction/Abduction ROM (°) 1.82 ± 3.11 4.93 ± 3.58 3.62 ± 3.52 0.009 0.032 0.781
Anterior-posterior translation (cm) 0.51 ± 0.43 0.36 ± 0.54 0.54 ± 0.60 0.189 0.854 0.312
Proximal-distal translation (cm) 0.58 ± 0.54 1.03 ± 0.53 0.84 ± 0.45 0.003 0.039 0.525
Medial-lateral translation (cm) 0.54 ± 0.33 0.24 ± 0.40 0.67 ± 0.36 0.017 0.547 0.028
  1. SD Standard deviation, TKA Total knee arthroplasty, SR Single radius, MR Multiple radius, ROM Range of motion