Table 2.

Planned and postoperative coronal alignment agreement

	Entire cohort (n = 258)			No recut (n = 140 (54%))			Recut (n = 118 (46%))
	Mean ± SD ICC n (%)	(Range) (95% CI)	p values (planned vs. postoperative)	Mean ± SD ICC n (%)	(Range) (95% CI)	p values (planned vs. postoperative)	Mean ± SD ICC n (%)	(Range) (95% CI)	p values (planned vs. postoperative)	p values (Recut vs. No recut)
FMA
Planned (deg)	91.7 ± 1.8	(88–96)		91.5 ± 1.9	(88–96)		91.9 ± 1.8	(88–96)
Postoperative (deg)	91.2 ± 2.4	(84–98)	0.016	91.0 ± 2.6	(84–98)	n.s	91.4 ± 2.3	(86–98)	n.s
Delta (deg)	− 0.5 ± 1.6	(− 9–6)		− 0.5 ± 1.7	(− 9–3)		− 0.5 ± 1.5	(− 4–6)
Agreement	0.701	(0.617–0.767)		0.706	(0.602–0.784)		0.691	(0.572–0.780)
Outside range [85° to 95°]	9 (3%)			4 (3%)			5 (4%)			n.s
TMA
Planned (deg)	88.0 ± 1.3	(85–92)		88.1 ± 1.3	(85–92)		87.9 ± 1.2	(85–90)
Postoperative (deg)	87.5 ± 2.2	(81–94)	0.002	87.8 ± 2.2	(81–94)	n.s	87.1 ± 2.1	(81–93)	< 0.001
Delta (deg)	− 0.5 ± 1.8	(− 6–5)		− 0.2 ± 1.8	(− 6–5)		− 0.8 ± 1.8	(− 5–5)
Agreement	0.462	(0.351–0.559)		0.479	(0.342–0.597)		0.434	(0.236–0.588)
Outside range [85° to 95°]	21 (8%)			7 (5%)			14 (12%)			n.s
HKA angle
Planned (deg)	179.7 ± 1.5	(176–184)		179.6 ± 1.6	(176–184)		179.7 ± 1.5	(176–183)
Postoperative (deg)	178.6 ± 2.6	(168–185)	< 0.001	178.6 ± 2.6	(168–185	< 0.001	178.5 ± 2.6	170–185)	< 0.001
Delta (deg)	− 1.1 ± 2.1	(− 8–5)		− 1.0 ± 1.9	(− 8–5)		− 1.3 ± 2.2	(− 8–4)
Agreement	0.472	(0.264–0.619)		0.563	(0.347–0.704		0.368	(0.139–0.546)
Outside range [175° to 183°]	18 (7%)			11 (8%)			7 (6%)			n.s

FMA femoral mechanical angle; TMA tibial mechanical angle; HKA hip knee ankle; deg degree; SD standard deviation; ICC intra-class correlation coefficient; CI confidence interval