Cai Gang, Yang Lang, Saleh Michael, Coulton Les
Academic Unit of Orthopaedic and Traumatic Surgery, University of Sheffield, Sheffield, UK.
J Pediatr Orthop B. 2007 Nov;16(6):403-7. doi: 10.1097/BPB.0b013e3282f103ae.
Limb lengthening by tibial callotasis is usually performed in the metaphysis but may cause growth inhibition. Is diaphyseal lengthening more advantageous? Sixteen immature rabbits underwent 30% diaphyseal lengthening by tibial callotasis. The tibial length was measured on radiographs at the end of the distraction period and after an additional 5 weeks. The proximal and distal growth plates were assessed histomorphometrically. Osteotomy stimulated tibial elongation; however, combined with diaphyseal lengthening the stimulation was suppressed resulting in longitudinal growth that matched the control side. In longer lengthenings of limbs diaphyseal callotasis may be more advantageous than metaphyseal by not inhibiting longitudinal growth.
通过胫骨骨痂延长术进行肢体延长通常在干骺端进行，但可能会导致生长抑制。骨干延长是否更具优势？16只未成熟兔子通过胫骨骨痂延长术进行了30%的骨干延长。在牵张期结束时以及再过5周后，通过X线片测量胫骨长度。对近端和远端生长板进行组织形态计量学评估。截骨术刺激了胫骨延长；然而，与骨干延长相结合时，这种刺激受到抑制，导致纵向生长与对照侧相匹配。在更长的肢体延长中，骨干骨痂延长术可能比干骺端延长术更具优势，因为它不会抑制纵向生长。
