osteonecrosis of the femoral head
type: Thing
description: aseptic or avascular necrosis of the femoral head
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  property ID: P279
  value: osteonecrosis
additional property: PropertyValue
  property ID: P279
  value: type 2 collagen-related bone disorder
additional property: PropertyValue
  property ID: P279
  value: primary avascular necrosis
additional property: PropertyValue
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  value: Avascular necrosis of the femoral head
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  value: COL2A1
additional property: PropertyValue
  property ID: P2293
  value: TRPV4
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  property ID: P2888
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confidence:
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    score pct: 0
    tier: long_tail
    components:
      sitelinks: 0
      sitelinks norm: 0.0
      unique citations: 4
      unique citations norm: 0.002
      monthly pageviews: 0
      monthly pageviews norm: 0.0
  sitelinks: 0
  unique citations: 4
  monthly pageviews: 0
  yearly pageviews: 54
  pageview trend:
    m: 2026-05
    v: 35
  pageview trend:
    m: 2026-05
    v: 8
  pageview trend:
    m: 2026-04
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  pageview trend:
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  tier: long_tail
claims:
  P18:
    value: Pathology of avascular necrosis.jpg
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    confidence: 0.0
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    value label: type 2 collagen-related bone disorder
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    value label: primary avascular necrosis
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    value label: avascular necrosis of genetic origin
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    value label: rheumatology
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    value label: COL2A1

value: Q15324120
source count: 1
confidence: 0.2
value label: TRPV4

value: http://www.orpha.net/ORDO/Orphanet_86820
source count: 0
confidence: 0.0

value: C0015814
source count: 0
confidence: 0.0

value: C4275066
source count: 1
confidence: 0.2

value: M87.8
source count: 1
confidence: 0.2

value: 10914
source count: 1
confidence: 0.2

value: MONDO_0012126
source count: 0
confidence: 0.0

value: DI-02197
source count: 0
confidence: 0.0

source: Monarch Disease Ontology release 2018-06-29
stated in qid: Q55345445
retrieved: 2018-07-28

source: UMLS 2023
stated in qid: Q118645236
retrieved: 2023-06-16

source: Type II collagen gene variants and inherited osteonecrosis of the femoral head
stated in qid: Q46522787

source: Gain-of-function mutation in TRPV4 identified in patients with osteonecrosis of the femoral head
stated in qid: Q30276535

wikidata id: Q1652102
domain: rare_disease
level: standard
html url: https://4ort.xyz/entity/osteonecrosis-of-the-femoral-head
markdown url: https://4ort.xyz/entity/osteonecrosis-of-the-femoral-head.md
facts url summary: https://4ort.xyz/entity/osteonecrosis-of-the-femoral-head/facts.json
facts url standard: https://4ort.xyz/entity/osteonecrosis-of-the-femoral-head/facts.json
facts url full: https://4ort.xyz/entity/osteonecrosis-of-the-femoral-head/facts.json
data source: Wikidata (CC0 / public domain)
license: https://creativecommons.org/publicdomain/zero/1.0/
api version: v1
served at: 2026-08-08T10:52:00.186388Z
entity updated at: 2026-05-03T21:19:00.258443+00:00Z
entity created at: 2026-05-03T14:07:54.596624+00:00Z