Hip Conditions, Pain & Injury
The hip is a ball-and-socket joint that allows for a wide range of fluid leg and body movement including walking, running and general stability. Although the hip can put up with considerable wear-and-tear, hip pain can develop as the cartilage that helps prevent friction in the socket begins to break down.
Overuse, injury, and disease can cause pain and affect the functionality of the hip joint. When the muscles, ligaments, and tendons are put under stress from repeated movements, they may become inflamed, causing hip pain. Fractures or dislocations from falls or other accidents are also a common cause of hip injuries.
Hip pain may be felt in the areas that surround the joint. Identifying the specific location of the pain will help identify the cause.
If pain is experienced on the inside of the hip or groin area, it may indicate a problem within the hip joint itself. If the pain is felt on the outside of the hip, upper thigh or outer buttock, it may be caused by problems in the soft tissues surrounding the hip joint, including the muscles, ligaments, and tendons.
The symptoms of hip pain tend to worsen with activity. Additional symptoms may include a reduced range of motion of the hip joint, and limping or difficulty walking.
Common causes of hip pain treated at MOS
An acetabular fracture is a break in the bone of the hip socket, called the acetabulum. Usually caused by trauma from a car accident or fall, this serious injury requires quick, precise treatment by orthopedic specialists.
Arthritis is painful inflammation and stiffness of the joints, which can be caused by many types of degenerative joint conditions. There are over 100 types of arthritis, including osteoarthritis, rheumatoid, gout, psoriatic, septic, post-traumatic, and lupus. Arthritis symptoms can include swelling, tenderness, sharp pain, stiffness, and sometimes fever and chills.
Bursitisis painful inflammation of the bursae, the fluid-filled sacs that reduce friction between bones, tendons, and muscles, caused by an injury, infection or other condition. Pain may be accompanied by swelling, tenderness or loss of movement.
Femoroacetabular impingement (FAI)
FAI is a condition in which the bones of the hip joint are not formed properly, causing pain and reduced range of motion. There are three general types of deformity recognized as FAI: cam, pincer, and combined. Symptoms of FAI depend on the individual, but typically include pain in the groin area, lower back or outer hip. Sharp pain may occur when twisting, turning, or squatting.
A fracture is a break in a bone. Symptoms of a broken bone include pain (intensified when the area is moved or pressure is applied), swelling, bruising, and loss of function. Fractures may also cause the area around the bone to appear distorted or deformed, especially in open fractures where the bone protrudes from the skin.
A stress fracture is a hairline crack in a bone that can worsen during activity over time. Stress fracture symptoms include pain, which increases with activity and decreases after rest, in addition to swelling and tenderness.
Dislocation is an injury to a joint in which the bones are forced out of their natural position by trauma. In a hip dislocation, the head of the thighbone (femur) is forced out of its socket (acetabulum) in the pelvis. Symptoms of a hip dislocation include a visible deformity of the joint and extreme pain. If there is nerve damage from the injury, there may be numbness in the foot and ankle area.
Leg length discrepancy/short leg syndrome
Leg length discrepancy (LLD) is a condition where one leg is longer than the other. This may occur following a hip replacement, or can be due to earlier injury or infection in the bones, particularly during childhood.
Osteonecrosis (avascular necrosis)
Osteonecrosis occurs when the blood supply to a bone is interrupted, causing the bone tissue to die. Dislocations and fractures are the most common causes of osteonecrosis, but other medical conditions, long-term corticosteroid use, and heavy alcohol can also cause the condition. Over time, symptoms may include pain in the groin, thigh or buttock, especially when putting weight on the affected leg.
Need for total hip replacement
A total hip replacement, also known as a total hip arthroplasty, is a surgical procedure that replaces a damaged hip joint with a prosthetic implant, commonly made of plastic, metal, or ceramic materials.
Infected hip replacement
Hip revision surgery may be necessary if a hip replacement becomes infected. The replacement site or incision may become infected, even years after surgery. Symptoms of an infection include fever, chills, redness or swelling of the hip, pain, and drainage from the wound site.
Failed hip replacement
Wear and tear can cause the failure of the replacement joint over time, which may require hip revision surgery. Signs that a hip replacement is failing include pain, stiffness, and a feeling of instability.
Hip replacement dislocation
Dislocation of the replacement hip is when the ball of the replaced hip joint (femoral head component) comes out of the socket (acetabular component). Symptoms of a hip replacement dislocation include pain, swelling, and a visible deformity of the joint. It may be impossible to move the hip joint as well.
Hip labral tear
A hip labral tear is damage to the acetabular labrum, the fibrous cartilage that lines the inner rim of the hip socket. Symptoms of a labral tear include pain in the groin area, stiffness, and mechanical issues in the hip such as clicking, catching, or locking. Labral tears can heal with rest, but may require surgery.
Sprains & strains
Sprains are stretched or torn ligaments: the fibrous bands of tissue in joints that connect bones. Sprains cause pain and swelling and are ranked by three degrees of severity: a slight ligament tear or stretch (first-degree), a partial or incomplete ligament tear (second-degree), or a complete ligament tear or rupture (third-degree).
Strain is a stretched or torn muscle or tendon. Strains cause pain and swelling and are ranked by three degrees of severity: a slight muscle or tendon tear/stretch (first-degree), a partial or incomplete muscle or tendon tear (second-degree), or a complete muscle or tendon tear/rupture (third-degree).
Tendonitis (also known as tendinitis) is inflammation of the tendons: the thick, rope-like cords of tissue that connect muscle to bone. Tendonitis is caused by overuse (repetitive motion) or sudden injury. Tendonitis symptoms include pain in the tendon area, and sometimes loss of motion.