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February 5, 2024Journal of Hip Preservation SurgeryOpen Access

DDH femoral heads were less spherical (P < 0.001) and had significantly smaller α-angles (P < 0.001), larger head-neck offsets (P = 0.02), and larger neck-shaft angles (P < 0.001) compared to the FAI group.

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Why the study?

Femoral deformities are common in developmental dysplasia of the hip, but treatment decisions are not standardized and comparisons to cam femoroacetabular impingement deformities are needed.

What are the differences in proximal femur shape variation between female patients with developmental dysplasia of the hip and those with cam femoroacetabular impingement?

Population

Female patients with DDH (n = 68) or cam FAI (n = 60)

Comparison

DDH vs cam FAI

Authors

MHMichael D. HarrisBGBrecca M.M. GaffneyJCJohn C. Clohisy

Discussion

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Overview

Distinct femoral shapes distinguish DDH from cam FAI on 3D analysis; leaves open whether measures standardize treatment.

Structured PICO

What are the differences in proximal femur shape variation between female patients with developmental dysplasia of the hip and those with cam femoroacetabular impingement?

P
Population
128 female patients, comprising 68 with developmental dysplasia of the hip (DDH) and 60 with cam femoroacetabular impingement (FAI).
O
Outcome
Proximal femur shape variation assessed via three-dimensional (femoral head asphericity, PCA) and two-dimensional (α-angle, head-neck offset, neck-shaft angle) measures.surrogate

Both articular and extra-articular regions of the proximal femur have distinct shape features in DDH and cam FAI, suggesting that approaches to addressing each disorder should be unique.

Cite This Study

Harris et al. (2024) studied this question.

synapsesocial.com/papers/6a71010e6ceb2bbd16e00d2chttps://doi.org/10.1093/jhps/hnae004
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