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Stressfrakturer: hjulaxlar och idrottskarriärer brister
Engelsk titel: Stress fractures: wheel axles and sports careers burst Läs online Författare: Aspenberg, Per ; Schilcher, Jörg Språk: Swe Antal referenser: 30 Dokumenttyp: Översikt UI-nummer: 14107335

Tidskrift

Läkartidningen 2014;111(36)1436-9 ISSN 0023-7205 E-ISSN 1652-7518 KIBs bestånd av denna tidskrift Denna tidskrift är expertgranskad (Peer-Reviewed)

Sammanfattning

Stress fractures are caused by material fatigue. Microcracks appear normally in bone, and are dealt with by remodeling, specifically targeting areas of microdamage. Inhibition of targeted remodeling can allow microcracks to grow and form fractures. Intensive athletic training can lead to an increased microcrack formation rate, which exceeds what can be balanced by remodeling. Stress fractures often heal poorly, possibly because they are so thin: normal deformation of the bone during loading has been shown to lead to strains within thin cracks that are incompatible with cell survival. If the patient can’t reduce loading sufficiently to allow healing, surgical stabilization will therefore be required. If the crack is transformed into a larger defect, e.g. by drilling a hole, strains will be reduced and healing facilitated by a simple procedure.