bipartite patella

{{Infobox medical condition (new)

| name = Bipartite patella

| synonyms = Patella bipartita

| image = Patellabipartita.jpg

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| caption = Bipartite patella as seen from front, right knee left

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Bipartite patella is a condition where the patella, or kneecap, is composed of two separate bones. Instead of fusing together as normally occurs in early childhood, the bones of the patella remain separated.{{Cite web|url=http://orthopedics.about.com/od/kneecappatelladisorders/g/bipartite.htm|publisher=About.com|title=Kneecap (Patella) Injury|access-date=13 April 2014|archive-date=4 March 2016|archive-url=https://web.archive.org/web/20160304201510/http://orthopedics.about.com/od/kneecappatelladisorders/g/bipartite.htm|url-status=dead}} The condition occurs in approximately 1{{ndash}}2% of the population{{Cite web|url=http://www.orthobullets.com/pediatrics/4049/bipartite-patella|publisher=Orthobullets.com|title=Bipartite Patella - Pediatrics - Orthobullets.com|access-date=13 April 2014}}{{Cite web|url=http://radiopaedia.org/articles/bipartite-patella|publisher=Orthobullets.com|title=Bipartite Patella | Radiology Reference Article | Radiopaedia.org|access-date=13 April 2014}} and is no more likely to occur in males than females. It is often asymptomatic and most commonly diagnosed as an incidental finding,{{Cite journal|publisher=Journal of the American Academy of Orthopaedic Surgeons|title=Symptomatic bipartite patella: treatment alternatives.|pmid=18664634 | volume=16|vauthors=Atesok K, Doral MN, Lowe J, Finsterbush A |journal=J Am Acad Orthop Surg|year=2008|issue=8|pages=455–61|doi=10.5435/00124635-200808000-00004|s2cid=35458401}} with about 2% of cases becoming symptomatic.

Saupe introduced a classification system for Bipartite Patella back in 1921.

Type 1: Fragment is located at the bottom of the kneecap (5% of cases)

Type 2: Fragment is located on the lateral side of the kneecap (20% of cases)

Type 3: Fragment is located on the upper lateral border of the kneecap (75% of cases){{Cite web|url=https://www.knee-pain-explained.com/bipartite-patella.html|publisher=Knee-Pain-Explained.com|title=Bipartite Patella - Knee Conditions - Knee-Pain-Explained.com}}