Injection-Induced Quadriceps Contracture Treated with Distal Quadricepsplasty: A Case Series.

Area of Science:

• Orthopedic Surgery
• Pediatric Orthopedics
• Musculoskeletal Conditions

Background:

• Quadriceps contracture involves shortening and fibrosis of the quadriceps muscle, restricting knee flexion.
• It commonly affects children following intramuscular immunizations, though other causes exist.
• Surgical intervention is considered when conservative physiotherapy fails to restore adequate knee movement.

Purpose of the Study:

• To evaluate the efficacy of open quadriceps release with Z-plasty and fractional lengthening for treating post-immunization quadriceps contracture.
• To assess the improvement in knee range of motion and identify any complications post-surgery.

Main Methods:

• Surgical release involved Z-plasty of the rectus femoris and fractional lengthening of the vastus intermedius.
• Patients underwent 3 weeks of knee immobilization followed by physiotherapy for range of motion exercises.
• Outcomes were assessed at 3, 6, 12, and 24 weeks post-surgery.

Main Results:

• Significant improvement in immediate post-release knee flexion was observed.
• An acceptable range of knee flexion for routine activities was achieved by approximately 12 weeks.
• Minor extensor lag was the only reported complication.

Conclusions:

• Open quadriceps release with Z-plasty and fractional lengthening is an effective technique for quadriceps contracture.
• The procedure offers minimal complications and a favorable prognosis for restoring knee function.
• This surgical approach addresses the condition effectively, leading to good patient outcomes.