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Table 1 Results of normal alignment and outliers in the sagittal, coronal, and axial planes in the studied cohort (n = 60 patients)

From: All types of component malrotation affect the early patient-reported outcome measures after total knee arthroplasty

Variable Category Number (percentage) Mean ± SD
Postoperative coronal limb alignment Normal 39 (65%) −0.34 ± 0.3
Varus outliers 19 (30%) 6.74 ± 0.5
Valgus outliers 2 (5%) 5.83 ± 0.6
Postoperative sagittal limb alignment Normal 15 (25%) 2.32 ± 0.3
Hyperextension outliers 31 (51.7%) 14.97 ± 1.9
Flexion outliers 14 (23.3%) 7.23 ± 1.1
Femoral component rotation Normal 16 (26.7%) 3.21 ± 0.2
Internal Rotation outliers 16 (26.7%) −0.86 ± 0.2
External Rotation outliers 28 (46.6%) 1.55 ± 0.4
Tibial component rotation Normal 28 (46.6%) 0.04 ± 0.01
Internal Rotation outliers 22 (36.6%) −6.22 ± 0.7
External Rotation outliers 10 (16.8%) 6.44 ± 1.4
Rotation mismatch   17 9.31 ± 1.9
Combined rotation Internal Rotation 5 −7.42 ± 1.1
External Rotation 10 9.43 ± 1.5