The third is a combination of the two, generally referred to as mixed. The most common type seen, approximately 70% of the time, is the mixed type. A complicating issue is that some of the radiographic findings of FAI have also been described in asymptomatic subjects.Current literature suggests that the cam type of impingement is associated with the development of hip osteoarthritis. Thus far, no correlation has been seen between the pincer type and development of hip osteoarthritis. Anatomy
The hip joint is classified as a ball and socket joint. This type of synovial joint allows for multidirectional movement and rotation. There are two bones that make up the hip joint and create an articulation between the femur and pelvis. This articulation connects the axial skeleton with the lower extremity. The pelvic bone, also known as the innominate bone, is formed by three bones fused together: the ilium, ischium, and pubis. The musculature of the hip is divided into anterior hip muscles and posterior hip muscles. The major nerve supply that runs through the hip joint is the femoral nerve and the sciatic nerve. Diagnosis
Clinical evaluation is the first step in diagnosis, but will rarely lead to the diagnosis on its own, due to inconsistent and vague nature of the pain. Childhood and current activity should be inquired about. Physical exam should also involve assessing passive internal rotation of the hip during flexion, as range of motion is reduced in proportion to the size of a cam lesion.
Side or Sides may refer to:

Geometry
Edge (geometry) of a polygon (two-dimensional shape)
Face (geometry) of a polyhedron (three-dimensional shape)

Places
Side (Ainis), a town of Ainis, ancient Thessaly, Greece
Side (Caria), a town of ancient Caria, Anatolia
Side (Laconia), a town of ancient Laconia, Greece
Side (Pontus), a town of ancient Pontus, Anatolia
Side, Turkey, a city in Turkey
Side, Iran, a village in Iran
Side, Gloucestershire, or Syde, a village in England

Music
Side (recording), the A-side or B-side of a record
The Side, a Scottish rock band
Sides (album), a 1979 album by Anthony Phillips
Sides, a 2020 album by Emily King
"Side" (song), a 2001 song by Travis
"Sides", a song by Flobots from the album The Circle in the Square, 2012
"Sides", a song by Allday from the album Speeding, 2017

Teams
Side (cue sports technique)
Side, a team, in particular:
Sports team

Other uses
Side (mythology), one of three mythological figures
Side, a Morris dance team
Sideboard (cards), known as a "side" in some collectible card games
Sides (surname), a surname
Side dish, a food item accompanying a main course
School of Isolated and Distance Education, a public school in Perth, Western Australia
Secretaría de Inteligencia, the premier intelligence agency of the Argentine Republic
Social identity model of deindividuation effects, in social psychology
Side (gay sex), a term describes gay men who are not interested in anal sex

See also
All pages with titles beginning with Side 
All pages with titles containing side
Cide (disambiguation)
Relative direction, left and right
Sidle (disambiguation)