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HUMAN PHENOTYPE - ANNOTATIONS

The Human Phenotype Ontology (HPO) is downloaded weekly from http://compbio.charite.de/hudson/job/hpo/lastStableBuild/artifact/ontology/release/hp.obo. The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at http://www.human-phenotype-ontology.org/.
Term:Delayed fracture healing
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Accession:HP:0032537 term browser browse the term
Definition:A delay in healing of a fracture past the expected duration.
Comment:Initially, after injury a hematoma forms and this is followed by inflammatory cells arriving at the fracture site to debride the wound. During the soft callus phase of healing a collar of bone forms at the periosteum adjacent to the fractured bone, and cells in the periosteum proliferate and differentiate into chondrocytes that form cartilage that bridges the fracture gap. During the hard callus phase, the cartilage is replaced by bone through endochondral ossification, possibly by transformation of some of the chondrocytes into osteoblasts. Finally, through remodeling, newly formed bone is restored to its pre-injured state. Depending on the site of the fracture, healing usually takes from 3 to 12 weeks in healthy adults.


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Path 1
Term Annotations click to browse term
  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the musculoskeletal system 0
        Abnormal musculoskeletal physiology 0
          Delayed fracture healing 0
Path 2
Term Annotations click to browse term
  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the musculoskeletal system 0
        Abnormality of the skeletal system 0
          Abnormal musculoskeletal physiology 0
            Delayed fracture healing 0
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