This month’s Image Quizfrom the JBJS Journal of Orthopaedics for Physician Assistants (JOPA) highlights the case of an 8-year-old boy who presents with a 3-month history of in-toeing. Anteroposterior pelvic and bilateral frog-leg radiographs are included, along with measurements of the foot progression angle, medial rotation of the hip, and the thigh-foot axis.
The Image Quiz reviews the natural history of lower-extremity rotational deformities in children, and describes in detail how to make the physical-examination measurements that helped answer the clinical question of whether this patient’s in-toeing was benign or a sign of a more serious deformity.