Soonchunhyang Med Sci.  2018 Dec;24(2):170-174. 10.0000/sms.2018.24.2.170.

Tibial Torsion and Knee Varus Angle: Are These Aetiologies of Hallux Valgus?

Affiliations
  • 1Department of Orthopedic Surgery, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea. remedios@schmc.ac.kr

Abstract


OBJECTIVE
The purpose of this study is to evaluate that knee deformity (varus or valgus) due to osteoarthritis of the knee and tibial torsion could be aetiologies of hallux valgus.
METHODS
Forty-nine patients (43 females, six males; mean patient age, 69.88±6.12 years) before total knee arthroplasty for advanced primary osteoarthritis were recruited. All deformities were of the left knee. Preoperative torsional computed tomography, anteroposterior (AP) and lateral weight-bearing foot radiographs, AP and lateral weight-bearing knee radiographs, and long-leg standing AP views were obtained for each patient. The correlations between foot angle and knee varus angle or tibial torsion angle were examined.
RESULTS
There was no significant correlation between knee varus angle and foot angle. Similarly, there was no significant relationship between tibial torsional angle and foot angle, except talocalcaneal angle (TCA)-lateral (r=0.28). No significant relationships were found between TCA-AP and (1-2 intermetatarsal angle [IMA] and hallux valgus angle [HVA]), or between TCA-lateral and (1-2 IMA and HVA).
CONCLUSION
No significant correlations were found between the knee anatomical axis (knee varus angle) and foot angle or between the tibial torsional angle and foot angle. Tibial torsion and knee varus angle were not aetiologies for hallux valgus.

Keyword

Hallux valgus; Aetiologies; Tibial torsion; Varus knee angle

MeSH Terms

Arthroplasty, Replacement, Knee
Congenital Abnormalities
Female
Foot
Hallux Valgus*
Hallux*
Humans
Knee*
Male
Osteoarthritis
Weight-Bearing
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