Femoropatellar osteoarthritis and Femoropatellar prosthesis

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Femoropatellar osteoarthritis

Femoropatellar osteoarthritis is knee pain associated with inflammation of the articular cartilage caused by friction forces in the articular cartilage of the kneecap against the articular surface of the femur and tibia. During knee flexion, the kneecap slides through a channel in the femur called the intercondyle fossa, which fits the shape of the kneecap; so the movement is so smooth and painless, with as little friction as possible. An anatomical alteration of the tibia, excessive valgus, or other situations can change the biomechanics of the knee, increasing friction between the articular surfaces and creating the conditions for the onset of this syndrome. This syndrome may be caused by bone abnormalities, trauma, or results from retractions / laxity of soft tissues, in which case we speak of patellar hyperpressure. It mainly affects girls and athletes, especially runners and jumpers, i.e. sports with repeated knee flexion.

Treatment

In this type of osteoarthritis, surgery is the choice and although in the past a complete knee transplant was common, the results were not entirely satisfactory. "Today we have tried to replace more and more only that part of the injured knee (patella or patella), leaving the rest of the joints untouched, maintaining cruciate ligament and meniscus, for example, and that do not present any damage. It should be remembered that the knee is one of the joints that bears the greatest load on our body, often exposing it to disorders that cause pain. More than a specific pathology, femoral patellar osteoarthritis is a syndrome of multiple causes, all referring to an alteration in the femoral patellar joint and which is common among adolescent sportsmen, women and young adults.

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The Patella Prosthesis

At the end of años´70 there were a series of attempts to successfully apply this type of prosthesis, but with unsatisfactory results. Later in England, a very important improvement was achieved and one of the promoters of this new prosthesis was Dr. Christopher Ackroyd from the Avon Orthopaedic Centre in Bristol, England. It has been shown that the recovery after this type of prosthesis is much faster, the patient the next day and walks away, but must be accompanied by a quiet recovery, meticulous, meeting the deadlines that one has set with the patient. The ideal candidate for this type of prosthesis is one who has a pure femoral patellar osteoarthritis, with the rest of their joints healthy. The origin of this osteoarthritis can be traumatic, due to misalignment, overuse of the area, among other factors. Most patients with this type of problem fluctuate between 50 and 75 years. There are no studies to show whether this type of injury has increased in recent years, but it is a frequent problem and is suffered by about 10 percent of the adult population. When the indication is adequate, the results are encouraging to continue with rehabilitation and patients can develop a normal life, when before it was absolutely limiting.

Dr. Leopoldo Maizo - Orthopedic Surgeon

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Originally posted here: https://steemit.com/fundition/@drmaizo/femoropatellar-osteoarthritis-and-femoropatellar-prosthesis-1556373771