Prevalence of extra-articular tibia valga morphology in valgus knees and its implications for primary total knee arthroplasty

Table 1 Radiographic analysis of valgus knees according to presence of tibia valga

Parameter	Tibia Valga (89/253 = 35%)			Non-Tibia Valga (164/253 = 65%)			p value
Parameter	Median	Q1–Q3	Min–Max	Median	Q1–Q3	Min–Max	p value
HKA	5.0	2.0–8.0	0.0–14.0	3.0	1.0–6.0	1.0–6.0	0.002
mLDFA	85.5	84.1–91.0	79.9–98.0	85.5	84.2–86.8	79.7–97.1	0.97
mMPTA	89.6	88.3–91.0	84.1–94.8	88.1	86.9–89.3	84.0–95.4	< 0.001
JLCA	2.1	0.7–2.87	0.0–9.43	2.3	0.9–3.3	0.0–8.8	0.045
CORA-tibia	2.8	2.0–3.73	0.23–10.9	0.0	0.0–0.0	0.0–0.0	< 0.001

Q1–Q3 Interquartile range, HKA Hip–knee–ankle, mLDFA mechanical lateral distal femoral angle (^o in valgus), mMPTA mechanical medial proximal tibial angle (^o in varus), JLCA joint line convergence angle, CORA-tibia centre of rotation angulation of tibia in valgus. p <0.05 was considered statistically significant

ISSN: 1749-799X