S83.006AUnspecified dislocation of unspecified patella, initial encounter. S83. 006A is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2022 edition of ICD-10-CM S83.
Lateral patellar dislocation refers to lateral displacement followed by dislocation of the patella due to disruptive changes to the medial patellar retinaculum.
Lateral - The most common type of patellar dislocation.
Subluxation is another word for partial dislocation of a bone. Patellar subluxation is a partial dislocation of the kneecap (patella). It's also known as patellar instability or kneecap instability. The kneecap is a small protective bone that attaches near the bottom of your thigh bone (femur).
Dislocation is injury to a joint that causes adjoining bones to no longer touch each other. Subluxation is a minor or incomplete dislocation in which the joint surfaces still touch but are not in normal relation to each other.
Medial patellar subluxation (MPS) is a disabling condition caused by an imbalance in the medial and lateral forces in the normal knee, allowing the patella to displace medially.
Knee Dislocations It is classified according to the relationship of the tibia with the femur into anterior, posterior, medial, lateral, and rotational dislocations. Anterior dislocation (Fig. 4-34A and B) is the most common type, resulting from severe hyperextension.
Causes. Patellar dislocations can occur either in contact or non-contact situations. An athlete can dislocate his/her patella when the foot is planted and a rapid change of direction or twisting occurs. Usually a pre-existence ligamentous laxity is required to allow a dislocation to occur in this manner.
A dislocated kneecap can be caused by: A blow to the knee, for example if the knee joint collides with another person or object with great force. A sudden change of direction while the leg is still planted firmly on the ground, such as during sports or dancing. Weak leg muscles which puts pressure on the knee joint.
anteriorThe patella is the largest sesamoid bone in the human body and is located anterior to knee joint within the tendon of the quadriceps femoris muscle, providing an attachment point for both the quadriceps tendon and the patellar ligament.
Diagnosis. The doctor will examine the knee and diagnose a patellar dislocation after a clinical examination. X-rays are also done to confirm the injury and possible other injuries or fractures. Treatment of the unstable patella is first to ensure that the patella is not dislocated.
A dislocated knee is when the three bones of your knee are out of place and aren't aligned the way they should be. It can happen if the structures in your knee are abnormal. Some people are born with a knee dislocation (congenital dislocation of the knee).