Coxa vara surgery for osteogenesis imperfecta. A report of two cases

Authors

  • Hernán Abad Hospital Pediátrico Baca Ortiz, Orthopedics and Trauma Service, Quito, Ecuador.
  • Ana Rodríguez Universidad Central del Ecuador, Faculty of Medical Sciences, Specialty in Orthopedics and Trauma, Quito, Ecuador.
  • Jorge Luis Parra Lojan Hospital Pediátrico Baca Ortiz, Orthopedics and Trauma Service, Quito, Ecuador.
  • Andrés Rivadeneira Pontificia Universidad Católica del Ecuador, Faculty of Medicine, Specialty in Orthopedics and Trauma. Quito, Ecuador.
  • Jorge Andrés Álvarez-Maldonado Pontificia Universidad Católica del Ecuador, Faculty of Medicine, Specialty in Orthopedics and Trauma. Quito, Ecuador.

DOI:

https://doi.org/10.58814/01208845.9

Keywords:

Coxa Vara, Surgical Procedure, Osteogenesis Imperfecta

Abstract

Introduction. Coxa vara is a deformity characterized by a decrease in the neck-shaft angle (<110°) that can occur in up to 10% of patients with osteogenesis imperfecta (OI), being more frequent in type III OI. Its clinical manifestations are gait disturbance, leg shortening, genu valgum, and pain.

Case presentation. Male patients aged 13 and 8 years presenting with type III OI, positive Trendelenburg sign, adequate joint mobility, and a history of recurrent fractures and previous surgeries for deformities, including surgery for coxa vara correction. Radiographic and functional evaluation (Harris scale) were performed 6 and 68 months after surgery, respectively.

In the first case, a correction of 46° was obtained (initial angle: 84°; final angle: 130°), as well as a Harris score was 70. In the second case, a correction of 50° (82° vs. 132°) was achieved, with a Harris score of 68 points.

Conclusions. Subtrochanteric osteotomy and intramedullary K-wire nailing are effective options for the treatment of coxa vara in patients with osteogenesis imperfecta.

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References

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Published

2023-03-26

How to Cite

1.
Abad H, Rodríguez A, Parra Lojan JL, Rivadeneira A, Álvarez-Maldonado JA. Coxa vara surgery for osteogenesis imperfecta. A report of two cases. Rev. colomb. ortop traumatol. [Internet]. 2023 Mar. 26 [cited 2024 May 19];37(1):e9. Available from: https://revistasccot.org/index.php/rccot/article/view/9

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