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Table 1 Changes in pre-operative, planned, and post-operative alignment measurements

From: Customized-individually-made origin® implants in total knee arthroplasty allow a reliable solution for accurate reproduction of planned implant positioning

 

Pre-Operative Measures

Planned versus post-operative measures

Planned Measures

Post-Operative Measures

Difference between Planned and Post-Operative Measures [95% CI]

P-value

Overall HKA Population (°): mean (range)

177 (162–188)

179.5 (176–182)

178.5 (171–183)

-0.93 [-1.45; -0.43]

0.001

Distal Alpha angle (mMDFA) (°): mean (range)

92.8 (86–99)

91.6 (88–94)

91.5 (86–96)

-0.15 [-0.52; 0.21]

0.4

Posterior Alpha angle (PDFA) (°): mean (range)

92.5 (89–97)

91.4 (86–96)

90.7 (86–95)

-0.61 [-1.07; -0.15]

0.01

Beta angle (mMPTA) (°): mean (range)

87 (82–93)

87.8 (86–90)

88.7 (86–92)

1.00 [0.57; 1.43]

0.001

PPTA (°): mean (range)

85.8 (85–88)

85.9 (85–88)

86.2 (82–89)

0.28 [-0.06; 0.62]

0.1