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Metatarsus primus varus. A statistical study
T E Kilmartin1, R L Barrington, W A Wallace
1Kettering Health Authority, Northants, England.
The Journal of Bone and Joint Surgery. British Volume
|November 1, 1991
Summary
Metatarsus primus varus is present in children with hallux valgus and even in unaffected feet. This finding suggests it may be an early indicator of hallux valgus development.
Area of Science:
- Pediatric Orthopedics
- Radiology
- Podiatry
Background:
- Hallux valgus is a common foot deformity.
- Its early detection and underlying causes in children are not fully understood.
Purpose of the Study:
- To investigate the prevalence of hallux valgus in schoolchildren.
- To explore the association between metatarsus primus varus and hallux valgus in pediatric populations.
Main Methods:
- Radiographic analysis of standing foot radiographs from 6000 schoolchildren.
- Measurement of metatarsophalangeal angle and intermetatarsal angle.
- Assessment for the presence of metatarsus primus varus.
Main Results:
- 36 cases of unilateral and 60 cases of bilateral hallux valgus were identified.
- Metatarsus primus varus was observed in children with hallux valgus and in unaffected feet of those with unilateral hallux valgus.
- First metatarsal adduction was not linked to differential cortical growth or malalignment of the metatarsocuneiform joint.
Conclusions:
- Metatarsus primus varus may be an early sign or a coexisting condition in pediatric hallux valgus.
- The etiology of first metatarsal adduction in this context requires further investigation.
- Intermetatarsal angle did not correlate with metatarsus adductus or intercuneiform angles.