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Table 3 Radiographic measurements of medial and lateral JL difference with flexion and rotation error

From: 3D-surface scan based validated new measurement technique of femoral joint line reconstruction in total knee arthroplasty

Flexion and rotation error Medial JL difference (mm) Lateral JL difference (mm)
0° flexion (reference) -2.2 (± 0.1) -0.4 (± 0.3)
 + 5° internal rotation -2.5 (± 0.2) 0.1 (± 0.2)
 + 5° external rotation -2.2 (± 0.1) -1.2 (± 0.4)
5° flexion -1.5 (± 0.3) 0.0 (± 0.5)
 + 5° internal rotation -1.5 (± 0.5) 0.4 (± 0.6)
 + 5° external rotation -1.1 (± 0.1) 0.6 (± 0.6)
10° flexion -0.8 (± 0.2) 0.6 (± 0.7)
 + 5° internal rotation -0.8 (± 0.3) 0.3 (± 0.7)
 + 5° external rotation 0.3 (± 0.2) 2.1 (± 0.4)
  1. LDFA Lateral distal femoral angle, JL Joint line, med. medial, lat. lateral, diff. difference, values given in mean (± standard deviation)
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