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[Multiple recurrence of tibial fracture]
1Universitätsklinik für Orthopädische Chirurgie, Inselspital, Bern.
Der Unfallchirurg
|October 1, 1990
Summary
Multiple tibia refractures stem from bone necrosis due to vascular damage. Opening the medullary canal via closed nailing restores blood supply, promoting healing in these complex fractures.
Area of Science:
- Orthopedic Surgery
- Trauma Management
- Bone Biology
Background:
- Refracture, or re-fracture, is a complex complication following initial bone injury.
- Understanding the underlying causes of refracture is crucial for effective treatment.
- Historical nomenclature and etiology of refracture require clarification.
Observation:
- Three cases of multiple tibia refracture were analyzed.
- Radiological findings indicated bone necrosis as a primary etiological factor.
- Diminished periosteal blood supply and narrowed medullary canals were observed at refracture sites.
Findings:
- Bone necrosis results from vascular damage during initial trauma or surgery.
- Avascular bone cannot adequately substitute or remodel, leading to microfractures under normal loads.
- Experimental studies support the pathogenetic findings in refracture cases.
Implications:
- Opening the medullary canal and closed medullary nailing is a logical therapeutic approach.
- Reaming and intramedullary rod placement can restore the medullary vascular network.
- Improved bone perfusion in the refracture zone facilitates definitive consolidation.