Is acetabular morphology related to trochlear dysplasia?

R Rajakulasingam; J Murphy; C E Bache; S L James; R Botchu

doi:10.1016/j.jcot.2019.06.010

Is acetabular morphology related to trochlear dysplasia?

J Clin Orthop Trauma. 2020 Feb;11(Suppl 1):S82-S85. doi: 10.1016/j.jcot.2019.06.010. Epub 2019 Jun 11.

Authors

R Rajakulasingam¹, J Murphy¹, C E Bache², S L James¹, R Botchu¹

Affiliations

¹ Department of Musculoskeletal Radiology, Royal Orthopaedic Hospital, Birmingham, UK.
² Department of Orthopaedics, Royal Orthopaedic Hospital, Birmingham, UK.

Abstract

Purpose: To evaluate the correlation between trochlear dysplasia and acetabular coverage.

Materials and methods: 109 retrospective CT studies referred from the young adult knee clinic were independently reviewed by two observers. Anterior acetabular (AASA) and posterior acetabular (PASA) sector angles were calculated bilaterally on axial CT. Trochlear dysplasia was graded using the Dejour classification (A-D). ANOVA test was used.

Results: Dejour types A, B and D trochlear dysplasia were associated with a significantly increased AASA (P value = 0.0011).

Conclusion: Our results demonstrate a significant relationship between trochlear dysplasia and anterior acetabular coverage, as measured by AASA.

Keywords: Acetabular; Morphology; Trochlear dysplasia.