Abstract
INTRODUCTION: Post-injection quadriceps contracture (PIQC) is a rare disease entity nowadays as the route of injection has been changed from intramuscular to intravenous. Many types of quadricepsplasty were described with different complications. CASE REPORT: A 5-year 6-month-old boy was presented with right quadriceps contracture which was managed with distal horizontal Z quadricepsplasty and immobilization with a slab in an early post-operative day. After 4 weeks of static quadriceps exercise, then range of motion exercises was started. CONCLUSION: PIQC is a rare entity and can be treated successfully with horizontal z plasty. Knee range of movement can be achieved without any significant extension lag and skin complications.