[Frequency and Severity of Callus Defects. Dorsomedial Vs Ventrolateral Approach for Corticotomy in Performing Callus Distraction of the Tibia]
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Background: The purpose of this study was to compare a dorsomedial to the ventrolateral approach for corticotomy in performing callus distraction of the proximal metaphyseal tibia.
Patients And Methods: A total of 31 callus distractions were performed in 28 humans. The ventrolateral approach was used for 18 and the dorsomedial approach for 13 corticotomies. A scale of four severity grades was used to classify callus defect zones based on their extent as evidenced on serial X-rays. Biopsies were taken from higher-grade defects (grades 3-4).
Results: A total of 13 radiological evaluations revealed 12 defects using the ventrolateral approach. Seven defects (grades 1-2) healed spontaneously, whereas six defects (grades 3-4) required operative intervention as histological tissue examination showed no osteogenic potential.
Conclusion: To prevent callus defects of the proximal tibia in the future and to ensure maximal osteogenic potential in the distraction zone, a minimally invasive dorsomedial approach appears to achieve favorable results.
[Implantation of bone substitutes for tibial head fractures].
Heiss C, Schieker M, Schnettler R Unfallchirurg. 2008; 111(8):621-7.
PMID: 18704541 DOI: 10.1007/s00113-008-1463-3.