Table 5.

Correlation Between Lower Limb Alignment and Ankle Osteoarthritis in Patients With Achondroplasia.

	MAD	LDTA	ADTA	TTA
Age <40 years (174 ankles)
Van Dijk scale	rs = –0.152 P = 0.145	rs = 0.062 P = 0.550	rs = 0.074 P = 0.508	rs = 0.510 P < 0.001
K-L scale	rs = –0.168 P = 0.105	rs = 0.082 P = 0.431	rs = 0.102 P = 0.363	rs = 0.515 P < 0.001
Age ≥40 years (94 ankles)
Van Dijk scale	rs = 0.077 P = 0.315	rs = 0.042 P = 0.583	rs = 0.072 P = 0.371	rs = 0.306 P < 0.001
K-L scale	rs = 0.115 P = 0.129	rs = 0.046 P = 0.550	rs = 0.098 rs = 0.226	rs = 0.252 P = 0.001

The results in bold are considered statistically significant (P < 0.05).

MAD, mechanical axis deviation; LDTA, lateral distal tibial angle; ADTA, anterior distal tibial angle; TTA, talar tilt angle; K-L, Kellgren and Lawrence.