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FOOT DEFORMITIES AND THEIR RELATIONSHIP WITH DEVELOPMENTAL DYSPLASIA OF THE HIP: AN 11 YEAR PROSPECTIVE LONGITUDINAL OBSERVATIONAL STUDY.

Orthopaedic Department, Royal Blackburn Hospital, Lancashire, England

Aim: To assess the relationship between different types of foot deformity as risk factors in developmental dysplasia of the hip.

Methods: In the Blackburn district foot deformities were referred as risk factors in a screening programme for DDH. All hips were imaged ultrasonographically using a modified Graf morphological and Harcke dynamic method: type I, II, III and IV.

Statistical analysis compared relative risks, odds ratios, 95% confidence intervals for relative risk and P values using Chi the squared test.

Results: Total 585 cases, 432 postural equinovarus deformities (TEV), 60 fixed congenital talipes equinovarus (CTEV), 93 congenital talipes calcaneovalgus (CTCV) & 25 metatarsus adductus.

Conclusion: Routine screening for DDH in cases of postural TEV & fixed CTEV is no longer advocated. The deformity of postural TEV is poorly defined in the literature leading to over diagnosis. The screening of CTCV & metatarsus adductus should continue.

Correspondence should be addressed to: Mr J. B. Hunter, BSCOS, c/o BOA, The Royal College of Surgeons, 35–43 Lincoln’s Inn Fields, London WC2A 3PE.