The significance of the Dega osteotomy : Journal of Pediatric Orthopaedics B

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Pediatric Orthopaedics in Poland: Special Issue

The significance of the Dega osteotomy

Jóźwiak, Mareka; Grzegorzewski, Andrzejb; Napiontek, Marekc; Woźniak, Łukasza

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Journal of Pediatric Orthopaedics B 32(3):p 207-210, May 2023. | DOI: 10.1097/BPB.0000000000001005


Wiktor Dega has significantly impacted contemporary pediatric orthopedics by developing transiliac osteotomy – Dega’s pelvic osteotomy. The global implementation of the surgery technique gained dynamism in the 2000s after being published by Ward and Grudziak. Since then, derivative operative techniques called Dega, Dega-like or Dega family osteotomies have been developed. We analyzed the original articles published by Dega between 1929 and 1974 concerning transiliac osteotomy technique development and articles about its derivatives. The epidemiological significance of developmental hip dysplasia focused Wiktor Dega’s attention in the 1920s. At that time, he treated patients according to König’s idea of acetabular roof plastic surgery. The osteotomy depth gradually increased, which allowed deeper graft placement to perform what we nowadays call acetabuloplasty. In 1958, Dega coined the name ‘supraacetabular semicircular osteotomy’. It differed from the final concept of the transiliac osteotomy by not assuming the cut of the inner cortex of the iliac bone. The hinge for the acetabular rotation was located at the inner cortex’s whole length, disallowing the excessive redirection. The final concept of osteotomy allows for simultaneous acetabuloplasty and redirection to change the shape, location and acetabular volume. Dega derivatives are Mubarak (San Diego) and high Dega osteotomies. Dega osteotomy and its derivates are routinely implemented to treat developmental hip dysplasia and spastic hip disorders. It might be considered an option in Legg-Calve-Perthes disease, congenital deficiencies, and flaccid hip displacement in neurological conditions.

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