The purpose of this study is to report the ankle and foot functions via American orthopedic foot and ankle society score (AOFAS), peronei muscle testing ,handheld dynamometer and radiological outcomes after harvesting autogenous peroneus longus tendons for ligaments reconstruction.

Using a Peroneus longus tendon (PLT) as an autograft is a common procedure and has been used previously for deltoid ligament reconstruction in flatfoot deformity correction . Recently, (PLT) is gaining popularity as a graft option in primary anterior cruciate ligament (ACL) reconstruction surgeries with biomechanical studies showing tensile strength and clinical outcomes comparable to quadrupled hamstring grafts.

In addition to using PLT for isolated (ACL), it is also used in posterior cruciate ligament (PCL) reconstruction, medial collateral ligament reconstruction, posterolateral corner reconstruction of the knee, or knee multiple ligament injuries . The partial-thickness of the tendon has been used variably in knee ligament surgery..

Being a powerful muscle in plantar flexion and eversion of the foot, there might be associated ankle functional impairment. To the authors knowledge, there is a gap in science evaluating donor site morbidity. The aim of this study is to report the clinical and functional outcome of the donor site for better explanation of the cons and pros of using PLT as a graft in joint ligamentous injury .

Inclusion Criteria:

1. clinical and radiological diaginsis of joint ligament injury and needs to ligament reconstruction .
2. people with asymptomatic ankle and foot pre and post injury

Exclusion Criteria:

1. Associated ankle and/or foot fractures.
2. Associated hip or pelvic fractures
3. Abnormal ankle function pre-injury.
4. Contralateral limb fractures
5. Traumatic brain injury (TBI) that limits their ability to participate in their post-operative care;
6. Presence of neurological condition that result in spasticity or any abnormal lower limb muscles tone.
7. Any condition that would preclude the ability to comply with post-operative guidelines.