Hip Dislocation Information | Florida Orthopaedic Institute
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Hip Dislocation

OVERVIEW

A hip dislocation is when the thighbone bone gets dislodged from the hip socket either forward or backward. This injury is caused by something with a high impact, like a fall or a car accident. The injury itself is extremely painful and is fixed by manually putting the thighbone back into place. Recovery takes a few months but generally has excellent results.

hip dislocation graphic

ANATOMY

The hip is a ball and socket joint. The socket is formed by the large pelvis bone (acetabulum) and the ball is formed by the upper end of the thighbone (femoral head). A slippery tissue known as the articular cartilage covers the surface of the joint, creating a smooth surface that allows for the bones to glide easily across each other.

The large pelvis bone is ringed by strong fibrocartilage, known as the labrum, which forms a lining around the socket.

Additionally, the whole joint is surrounded by bands of tissue (ligaments) that form a capsule that hold the joint together. The undersurface of the capsule is lined by a thin membrane (synovium) which produces synovial fluid that lubricates the hip joint.

Hip dislocation graphic

DESCRIPTION

When the upper end of the thighbone is pushed out of the hip socket, it is known as a hip dislocation. The general cause of hip dislocation is impact injuries, such as car accidents and falls from significant heights. There are two different types of hip dislocations – posterior dislocation and anterior dislocation.

Posterior dislocation is the more common of the two types of hip dislocations and happens when the thighbone is pushed backward out of the socket. This type of hip dislocation will leave the lower leg in a fixed position with the foot and knee rotated inward toward the middle of the body.

Anterior dislocation is less common and happens when the thighbone slips forward out of its socket, resulting in the hip being slightly bent and the leg being rotated out and away from the middle of the body.

Additionally, when the hip is dislocated, the ligaments, labrum, muscles, and other soft tissues holding the joint together are often damaged. The nerves around the hip may also be injured.

SYMPTOMS

Hip dislocations are very painful and will result in you being unable to move your leg. If the injury results in nerve damage, you may not have any feeling in the foot or ankle area.

DIAGNOSIS

Your Florida Orthopaedic Institute physician will take a look at your symptoms and general health. Hip dislocations can in most cases be diagnosed just by looking at the position of the leg. Since hip dislocations often occur along with additional injuries, your physician will perform a thorough evaluation to determine the full extent of your injury.

Your doctor may order imaging tests, such as x-rays, to show the exact position of the dislocated bones, as well as any additional fractures in the hip or thighbone.

REDUCTION PROCEDURES

If there are no other injuries present, then your physician will give you an anesthetic or a sedative and manually readjust the bones back into their correct positions. This procedure is known as a reduction.

In rare cases, torn soft tissues or small bony fragments block the bone from going back into the socket. When this happens, surgery will be needed to remove the loose tissues and correctly position the bones.

NEXT STEPS

Hip dislocations typically take two to three months to heal completely. If there are additional injuries, then the healing time may be longer. Physical therapy is typically recommended during recovery to help speed up the process. Your physician will determine the best recovery schedule for you to get you fully healed as quickly as possible.

Contact your Florida Orthopaedic Institute physician today for more information on hip dislocations.

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