To determine
* The prevalence of abnormalities of femoral and acetabular versions and tibial torsion in symptomatic (FAI) Syndrome. * Analyse the subgroups of specific hip pathomorphologies associated with rotational abnormalities of lower limb (LL). * Which specific hip subtypes of (FAI) are associated with rotational abnormalities, * Outcomes of arthroscopic treatment of (FAI) syndrome in patients with rotational abnormalities compared with a control group of patients with normal rotation.
• Accepted to participate in the study (signing informed consent).
Skeletal maturity (Risser V score).
If their radiographic imaging, history, and physical examination demonstrated evidence of FAI or labral tears; if they experienced moderate to severe pain that was unresponsive to at least 3 months of nonsurgical treatment, including physical therapy, nonsteroidal anti-inflammatory drugs, and activity modification
• Incomplete radiographic documentation.
Previous surgery of the acetabulum, femur and/or tibia altering their version.
Skeletally immature hips (stage IV according to Risser).
Posttraumatic conditions.