Coronal plane alignment of the knee phenotypes and ankle joint coronal plane alignment patterns in Egyptian population

Table 3 Coronal plane alignment of the knee and ankle joint line orientation combined subtypes, n = 435 participants, 870 knees and ankles, n (%)

Variables		AJLO types			Total knees
		Varus: TPHA < 0 (type A)	Neutral: TPHA =0 (type N)	Valgus: TPHA > 0 (type B)
CPAK types	I	Type I-A1: 293 (33.7)	Type I-N1: 60 (6.9)	Type I-B: 32 (3.7)	385 (44.25)
	II	Type II-A: 56 (6.4)	Type II-N: 23 (2.6)	Type II-B: 11 (1.3)	90 (10.34)
	III	Type III-A: 3 (0.3)	Type III-N: 6 (0.7)	Type III-B: 2 (0.2)	11 (1.26)
	IV	Type IV-A1: 187 (21.5)	Type IV-N: 43 (4.9)	Type IV-B: 11 (1.3)	241 (27.70)
	V	Type V-A: 35 (4)	Type V-N: 27 (3.1)	Type V-B: 11 (1.3)	73 (8.39)
	VI	Type VI-A: 8 (0.9)	Type VI-N: 5 (0.6)	Type VI-B: 6 (0.7)	19 (2.18)
	VII	Type VII-A: 20 (2.3)	Type VII-N: 3 (0.3)	Type VII-B: 2 (0.2)	25 (2.87)
	VIII	Type VIII-A: 5 (0.6)	Type VIII-N: 6 (0.7)	Type VIII-B: 0 (0.0)	11 (1.26)
	IX	Type IX-A: 4 (0.5)	Type IX-N: 7 (0.8)	Type IX-B: 4 (0.5)	15 (1.72)
Total ankles		611 (70.23)	180 (20.69)	79 (9.08)	870 (100)

¹Indicated the three commonly occurring types.

CPAK: Coronal plane alignment of the knee; AJLO: Ankle joint line orientation; TPHA: Tibial plateau horizontal angle.