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Double-layered patella

MedGen UID:
346472
Concept ID:
C1856923
Congenital Abnormality
Synonym: double-layered patella
 
HPO: HP:0031174

Definition

An anomaly of the patella characterized by two layers visible on lateral knee X-ray such that one layer is in front of the other in the sagittal orientation (See Figure 2A and 3B of PMID:12966518). This finding persists into adulthood. [from HPO]

Term Hierarchy

CClinical test,  RResearch test,  OOMIM,  GGeneReviews,  VClinVar  
  • CROGVDouble-layered patella

Conditions with this feature

Multiple epiphyseal dysplasia type 4
MedGen UID:
376164
Concept ID:
C1847593
Disease or Syndrome
Recessive multiple epiphyseal dysplasia (EDM4/rMED) is characterized by joint pain (usually in the hips or knees); malformations of hands, feet, and knees; and scoliosis. Approximately 50% of affected individuals have an abnormal finding at birth, e.g., clubfoot, clinodactyly, or (rarely) cystic ear swelling. Onset of articular pain is variable but usually occurs in late childhood. Stature is usually within the normal range prior to puberty; in adulthood, stature is only slightly diminished and ranges from 150 to 180 cm. Functional disability is mild.

Recent clinical studies

Etiology

Mäkitie O, Geiberger S, Horemuzova E, Hagenäs L, Moström E, Nordenskjöld M, Grigelioniene G, Nordgren A
Clin Genet 2015 Mar;87(3):273-8. Epub 2014 Apr 1 doi: 10.1111/cge.12371. PMID: 24598000
Leng HC, Foster P, Templeton PA
J Pediatr Orthop 2011 Mar;31(2):e9-e12. doi: 10.1097/BPO.0b013e318207454b. PMID: 21307701
Gardner J, Woods D, Williamson D
J Pediatr Orthop B 1999 Jan;8(1):39-41. PMID: 10709596

Diagnosis

Przybylski P, Skoczyński M, Tarkowski P, Tarczyńska M, Gawęda K, Drop A
Folia Morphol (Warsz) 2021;80(3):735-738. Epub 2020 Aug 13 doi: 10.5603/FM.a2020.0089. PMID: 32789844
García-Mata S, Hidalgo-Ovejero A
J Pediatr Orthop B 2016 Nov;25(6):561-3. doi: 10.1097/BPB.0000000000000361. PMID: 27392305
Mäkitie O, Geiberger S, Horemuzova E, Hagenäs L, Moström E, Nordenskjöld M, Grigelioniene G, Nordgren A
Clin Genet 2015 Mar;87(3):273-8. Epub 2014 Apr 1 doi: 10.1111/cge.12371. PMID: 24598000
Rubenstein JD, Christakis MS
Radiology 2006 Jun;239(3):911-3. doi: 10.1148/radiol.2393032020. PMID: 16714467
Sheffield EG
J Pediatr Orthop 1998 Jan-Feb;18(1):123-8. PMID: 9449113

Prognosis

Leng HC, Foster P, Templeton PA
J Pediatr Orthop 2011 Mar;31(2):e9-e12. doi: 10.1097/BPO.0b013e318207454b. PMID: 21307701
Gardner J, Woods D, Williamson D
J Pediatr Orthop B 1999 Jan;8(1):39-41. PMID: 10709596

Clinical prediction guides

Czarny-Ratajczak M, Lohiniva J, Rogala P, Kozlowski K, Perälä M, Carter L, Spector TD, Kolodziej L, Seppänen U, Glazar R, Królewski J, Latos-Bielenska A, Ala-Kokko L
Am J Hum Genet 2001 Nov;69(5):969-80. Epub 2001 Sep 14 doi: 10.1086/324023. PMID: 11565064Free PMC Article
Superti-Furga A, Neumann L, Riebel T, Eich G, Steinmann B, Spranger J, Kunze J
J Med Genet 1999 Aug;36(8):621-4. PMID: 10465113Free PMC Article

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