Long-term Clinical and Radiographic Results of Revision Anterior Cruciate Ligament Reconstruction Using a Single-bundle Technique and External Tenodesis With Achilles Tendon Allograft.

A standard physical examination will be performed, and the classic painful points related to meniscal pathology will be assessed.

it allows the assessment of the anterior translation of the tibia relative to the femur with the knee flexed at 90 degrees. An increase in this translation suggests a lesion of the neo-ACL. It is quantified on a scale from 0 to 3.

it allows the assessment of the anterior translation of the tibia relative to the femur with the knee flexed at 30 degrees. An increase in this translation suggests a lesion of the neo-ACL. It is quantified on a scale from 0 to 3.

it is a clinical maneuver used to assess the rotational instability of the knee under examination. The test is performed by applying a stress in internal rotation-valgus and flexion; the occurrence of a "shift" or "clunk" of the tibia suggests a lesion of the neo-ACL associated with rotational instability. It is quantified on a scale from 0 to 3.

The IKDC form is a subjective knee assessment tool that expresses the limitations in the activities the individual can perform in daily life and sports, as well as the presence or absence of symptoms. The three main domains of the IKDC assessment form are: Symptoms, which include pain, stiffness, swelling, and a feeling of locking; Sports and daily activities; Current knee function and function before the injury.

It is a 10-point unidimensional quantitative pain assessment scale; the scale requires the patient to select the number that best describes the intensity of their pain, from 0 to 10, at that specific moment. 0 means no pain, and 10 indicates the worst possible pain.

It allows the estimation of a subject's level of physical activity with a score between 0 and 10, where 0 represents 'incapacity' and 10 represents 'participation in competitive sports, such as national or international-level football.' This score is the most commonly used to define the level of physical activity in patients with knee disorders. In the study, the Tegner Score will be completed directly by the investigator through an interview with the patient.

In order to assess the patient's level of satisfaction, they will be asked to answer the question "Are you satisfied with the surgical intervention?" The response will be dichotomous.

For the radiographic assessment, the patient's clinical and radiological data will be collected, and if necessary, X-rays will be performed to evaluate the development and degree of osteoarthritis, using the Kellgren-Lawrence scale. This scale classifies osteoarthritis into 5 grades, from no arthritic changes (grade 0) to severe joint space narrowing and osteophyte formation (grade 4).

The KT-1000 is an objective assessment tool that measures the anterior tibial translation relative to the femur's position by applying a predefined force to push the tibia forward. It is commonly used in research to quantitatively assess the static laxity of the knee in the anteroposterior direction after anterior cruciate ligament reconstruction surgeries.

KYRA is a non-invasive, outpatient device that allows the assessment of dynamic laxity during the pivot shift phenomenon. The device quantifies the degree of laxity with extreme precision. The unit of measurement is millimeters per square second.