Metatarsus varus
From WikiLectures
Metatarsus varus (pes adductus, metatarsus adductus) is a non-positional foot defect. Congenitally varus metatarsals can be of three types:
Metatarsus varus congenitus[edit | edit source]
This is a medial subluxation in the tarsometatarsal joints (Lisfranc joint).
- Clinical picture
- all metatarsals in adduction (forefoot curled inward) and inversion
- heel in neutral position / slight valgus
- child walks with toes inward, medial edge of foot concave, outer edge convex
- Therapy
- requires intensive treatment
- always conservative at first: start with exercise (pressure on medial surface to align foot to correct position), a series of corrective plaster bandages over the knee, modeled so that corrective pressure is directed over metatarsals laterally (duration of individual fixations 1-2 weeks, 6-8 weeks overall, rarely longer)
- if the deformity persists: around the age of 2 years operations on soft tissues (tendons and joint capsules), from the age of 3 years osteotomy over the metatarsal bases followed by transfixation with Kirschner wires and plaster fixation for 6 weeks (however, it is better to wait until the child is 5-6 years old, when there is no longer a risk of injury to the growth splays)
Sickle foot[edit | edit source]
- synonyms: dog serpens, skewfoot, zig-zag fuss
- rare defect
- Clinical picture
- metatarsal varicosity, heel valgus
- talocrural joint in anteroposterior projection on rtg spherical
- toe retracted into adduction most, forefoot creates a bayonet-like deformity (pes serpens)
- Therapy
- treatment is initiated conservatively (RHB and cast fixation)
- if unsuccessful, operate (capsulotomy, tendon intersection of m. abductor hallucis, osteotomy of the calcaneus)
Residual deformity[edit | edit source]
- after treatment PEC
- cases where adduction of the forefoot persists
References[edit | edit source]
References used[edit | edit source]
- DUNGL, P.. Ortopedie. 1. edition. Grada Publishing, 2005. ISBN 80-247-0550-8.
- SOSNA, A. – VAVŘÍK, P. – KRBEC, M.. Základy ortopedie. 1. edition. Triton, 2001. ISBN 80-7254-202-8.
- KOUDELA, K.. Ortopedie. 1. edition. Karolinum, 2004. ISBN 80-246-0654-2.