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Congenital "pseudarthroses" of the tibia: treatment with pulsing electromagnetic fields
Insights
Pulsing electromagnetic fields (PEMFs) show promise in treating infantile nonunions. Fifty percent of patients achieved complete healing, with others showing functional union, suggesting PEMFs as a valuable orthopedic treatment adjunct.
Area of Science:
- Orthopedics
- Biomedical Engineering
- Regenerative Medicine
Background:
- Infantile nonunions, often associated with congenital pseudarthroses, present significant orthopedic challenges.
- Traditional treatment methods for pediatric nonunions have limitations, necessitating exploration of novel therapeutic approaches.
Purpose of the Study:
- To evaluate the efficacy of pulsing electromagnetic fields (PEMFs) as a treatment modality for infantile nonunions.
- To analyze healing rates and identify factors influencing treatment outcomes in pediatric congenital pseudarthroses.
Main Methods:
- A cohort of 34 patients with infantile nonunions received treatment with PEMFs over seven years.
- Treatment protocols evolved from sole PEMF application to combined approaches including surgical realignment, immobilization, and grafting.
- Orthopedic management principles for adult nonunions were adapted for infantile cases.
Main Results:
- Complete healing with sound union and radiographic evidence of re-ossification was achieved in 50% (17/34) of patients.
- Functional union, requiring continued protection, was observed in 21% (7/34) of cases.
- Treatment failure occurred in 29% (10/34) of patients, particularly in males with early fractures and Type III lesions.
Conclusions:
- PEMFs represent a potentially effective adjunct in the orthopedic management of infantile nonunions.
- Successful treatment integrates PEMFs with established orthopedic principles like effective immobilization and controlled stress loading.
- Further research may optimize PEMF application for congenital pseudarthroses in pediatric populations.
Abstract:
During the past seven years, 34 patients with infantile nonunions associated with congenital "pseudarthroses" completed treatment with pulsing electromagnetic fields (PEMFs). An analysis of results reveals that 17/34 (50%) have achieved complete healing with biomechanically sound union and radiographic demonstration of remedullarization. Union with function, i.e., healing with continued need for protection, was achieved in 7/34 (21%). Failure was the outcome in 10/34 patients (29%). Most of these occurred in males with a history of early fracture (less than 1 year) and with spindled, hypermobile lesions (Type III). During the early period of the study, PEMFs were the sole means of treatment. After a "coil effect" had been demonstrated, surgical realignment, immobilization and grafting were combined with PEMF treatment. Fundamentals of orthopedic management developed by the larger experience with adult nonunions were found to apply equally to infantile nonunions treated with PEMFs. These include effective immobilization of the fracture site and controlled "stress working" during recovery to facilitate gradual remodeling. PEMFs have been demonstrated to be a potentially useful adjunct in the orthopedic surgeon's armamentarium for treating infantile nonunions (congenital "pseudarthroses").