Pathogenesis of infantile quadriceps fibrosis and its correction by proximal release

Area of Science:

• Pediatric Orthopedics
• Pediatric Rehabilitation

Background:

• Children with severe infant illnesses often require repeated intramuscular drug therapy.
• This therapy can lead to significant muscle fibrosis and subsequent knee extension contractures.
• Knee contractures can severely impair a child's mobility and quality of life.

Purpose of the Study:

• To describe knee extension contractures in children resulting from intramuscular drug therapy.
• To introduce and evaluate a novel surgical technique for early intervention.

Main Methods:

• The study describes 52 knee extension contractures in 33 pediatric patients.
• A limited subtrochanteric exposure surgical release was performed in early cases.
• This technique was utilized in 14 patients.

Main Results:

• The surgical release effectively addressed muscle fibrosis and contractures.
• Early mobilization was achieved post-operatively.
• Excellent functional results were observed in the treated cases.

Conclusions:

• Intramuscular drug therapy in infancy is a risk factor for pediatric knee contractures.
• Early surgical intervention using limited subtrochanteric release is a viable and effective treatment.
• This method facilitates early mobilization and yields excellent outcomes for affected children.