Table 1 Inclusion and exclusion criteria of eligibility

Inclusion Criteria

 1. Infra patellar extensor mechanism disruption after infected TKA

 2. Male and female gender with primary TKA implants

 3. Body Mass Index (BMI) ≤ 35 kg/m²)

 4. Inability to walk and straight leg raise

 5. Minimum 3 months after infection eradication

Exclusion criteria

 1. Patients with revision implants

 2. Active septic arthritis

 3. Previous extensor mechanism reconstruction surgery

 4. Patients unable to follow the rehabilitation protocol

 5. Good tissue quality permitting autograft reconstruction