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Table 4 Pre- and postoperative alignment of the lower extremity and component alignment of the ZUK in the first and last postoperative anterior-posterior (ap) and lateral radiographs

From: Metal backed fixed-bearing unicondylar knee arthroplasties using minimal invasive surgery: a promising outcome analysis of 132 cases

  ICC Preoperative First postoperative Last postoperative P value n
Mechanical axis 0.98 (0.94–0.97) −1.4 (1.9, −5.8–4.9), n = 118 −0.3 (1.8, −6.0–3.9), n = 119   <0.001 110
A 0.45 (−0.11–0.82)   −4.0 (4.9, −18.6 –9.2), n = 131 −4.8 (4.9, −19.5–9.3), n = 131 0.002 131
B 0.65 (0.13–0.90)   -2.2, (3.3, −9.6–3.9), n = 122 −1.8 (3.2, −9.5–5.8), n = 122 0.115 114
C 0.96 (0.84–0.99)   1.0 (5.3, −12.3–15.5), n = 132 0.9 (5.2, −12.3–14.7), n = 132 0.667 132
D 0.95 (0.83–0.99)   3.3 (2.9, −2.9–9.6), n = 131 3.5 (2.8, −3.8–9.9), n = 132 0.374 131
  1. ICC Intraclass correlation coefficient, A femoral component to the femoral axis ap, B tibial component to the tibial axis ap, C femoral flexion lateral, D tibial tilt lateral
  2. Data are presented as mean (standard deviation, range) or 95 % confidence intervall (ICC). Positive values are defined as valgus, extension or positive tilt