posterolateral

/ˌpoʊstəroʊˈlætərəl/
adjective
  1. Located behind and to the side of something, especially in anatomy or medicine.
    • In a healthy spine, the posterolateral part of the vertebra helps support the body's weight.
    • The doctor pointed to the posterolateral area of the knee where the patient felt pain.
    • The surgeon made a small incision on the posterolateral side of the thigh to access the muscle.