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Fractures: Bone Repair

Fractures: Bone Repair

Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...

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Creating Rigidly Stabilized Fractures for Assessing Intramembranous Ossification, Distraction Osteogenesis, or Healing of Critical Sized Defects

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Published on: April 11, 2012

Identifying Risk Factors for Revision Surgery After Fassier-Duval Rodding in Osteogenesis Imperfecta Patients: A

Pasin Tangadulrat^1,2, Yacine Louni³, Giacomo de Marco⁴

¹Department of Orthopedics, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand.

Journal of Pediatric Orthopedics

|March 25, 2026

Summary

Fassier-Duval (FD) rodding for pediatric osteogenesis imperfecta (OI) has a ~37% revision rate. Younger age at surgery (≤30 months) and OI type IV are key predictors of earlier implant failure, necessitating improved techniques for high-risk children.

Keywords:

Fassier-Duval osteogenesis imperfecta revision surgery

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Published on: November 8, 2024

Area of Science:

Pediatric Orthopedics
Biomaterials Science
Skeletal Dysplasias

Background:

Fassier-Duval (FD) telescopic rods are standard for pediatric osteogenesis imperfecta (OI) long bone fractures.
Despite effectiveness, revision surgeries are frequent, impacting long-term outcomes.

Purpose of the Study:

To analyze medium-to long-term outcomes of FD rodding in children with OI.
To identify specific risk factors predicting the need for revision surgery.

Main Methods:

Retrospective review of 169 lower limb FD rod procedures in 80 OI patients (2009-2020).
Kaplan-Meier survival analysis and Cox proportional hazards modeling were used.
Key outcomes included revision surgery rates and time to revision.

Main Results:

Overall revision rate was 36.69% with a median follow-up of 64 months.
Common revision reasons: refracture (41.94%), deformity recurrence (29.03%), rod bending (27.42%).
Younger age at surgery (≤30 months) and OI type IV were significant risk factors for earlier revision.

Conclusions:

FD rodding shows a ~37% medium-term revision rate in OI patients.
Younger age (≤30 months) and OI type IV are critical predictors of earlier implant failure.
Further research into surgical techniques and implant modifications is crucial for this vulnerable pediatric population.