| Bipartite patella | |
|---|---|
| Other names | Patella bipartita |
 | |
| Bipartite patella as seen from front, right knee left | |
| Specialty | Medical genetics  |
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.[1] The condition occurs in approximately 1–2% of the population[2][3] and is no more likely to occur in males than females.[2][3] It is often asymptomatic and most commonly diagnosed as an incidental finding,[1][3][4] with about 2% of cases becoming symptomatic.[2][3]
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)[5]
- ^ a b "Kneecap (Patella) Injury". About.com. Archived from the original on 4 March 2016. Retrieved 13 April 2014.
- ^ a b c "Bipartite Patella - Pediatrics - Orthobullets.com". Orthobullets.com. Retrieved 13 April 2014.
- ^ a b c d "Bipartite Patella | Radiology Reference Article | Radiopaedia.org". Orthobullets.com. Retrieved 13 April 2014.
- ^ Atesok K, Doral MN, Lowe J, Finsterbush A (2008). "Symptomatic bipartite patella: treatment alternatives". J Am Acad Orthop Surg. 16 (8). Journal of the American Academy of Orthopaedic Surgeons: 455–61. doi:10.5435/00124635-200808000-00004. PMID 18664634. S2CID 35458401.
- ^ "Bipartite Patella - Knee Conditions - Knee-Pain-Explained.com". Knee-Pain-Explained.com.