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Roentgenographic assessment in hallux valgus
G Scott1, D W Wilson, G Bentley
1Institute of Orthopaedic, Royal National Orthopaedic Hospital, Stanmore, Middlesex, England.
Clinical Orthopaedics and Related Research
|June 1, 1991
Summary
The intermetatarsal angle is the most reliable roentgenographic measurement for assessing medial deviation of the first metatarsal in hallux valgus. This finding aids in accurate diagnosis and treatment planning for hallux valgus.
Area of Science:
- Orthopedics
- Radiology
- Podiatry
Background:
- Assessing medial deviation of the first metatarsal in hallux valgus using simple roentgenographic angles has been debated.
- Accurate measurement is crucial for effective treatment planning.
Purpose of the Study:
- To determine the most reliable roentgenographic angle for assessing medial deviation of the first metatarsal in hallux valgus.
- To compare the effectiveness of intermetatarsal angle, metatarsus primus varus, and metatarsus omnis varus angles.
Main Methods:
- Roentgenographic measurements were taken from 100 symptomatic hallux valgus feet in women.
- Measurements were compared to those from symptomatic normal feet in a similar age group.
- Three parameters were analyzed: intermetatarsal angle, metatarsus primus varus, and metatarsus omnis varus.
Main Results:
- The hallux valgus angle correlated with medial deviation measured by all three parameters.
- The intermetatarsal angle showed a significant difference between hallux valgus and control feet compared to other measurements.
- No evidence of second metatarsal deviation from normal was found.
Conclusions:
- The intermetatarsal angle is the superior roentgenographic measure for evaluating medial deviation of the first metatarsal in hallux valgus.
- This provides a clear, reliable method for clinical assessment.
- The study did not find evidence supporting second metatarsal deviation in hallux valgus cases.