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Purpose : treatment of leg fracture , clinicians have been the focus of treatment is placed on the tibial shaft and ankle fractures . Few scholars fibula fracture bring enough attention . And fibula often as a bone graft source or because of suffering from some kind of disorder and its removal of restrictions . Many scholars believe that as long as the fibula distal portion reserved for bone limb without any problems . Recent studies have shown that , fibula fracture , such as shortening malunion , can lead to the talus the relocation , pronation deformity , the patient appears ankle instability , walking difficulties and complications , ultimately resulting in the trauma associated with significant ankle pain arthritis. Therefore , in recent years, the growing emphasis on the treatment of fibula fracture , with particular attention to restore the length of the fibula ; What degree of fibula shortening , can produce a significant impact on the biomechanical properties of the ankle , very few domestic reports . We designed the experiment using a more advanced test instruments , test body in walking , ankle neutral position , a different degree of fibular shortening case , tibiotalar joint different regions of the contact area , the average stress , peak stress values ??change maximum allowable degree of prediction fibula shortening , provide the basis for clinical fibula fracture and related diseases . : Six recent anti-corrosion adult cadavers since knee amputation , carefully remove the skin , muscles and other soft tissue above the ankle , to retain the important ligaments and ankle joint capsule . With a special fixture fixed specimens in the neutral position of the ankle and keep the subtalar joint eversion of about 5 ° . To good external fixator advance in the outer side of the fibula , in the fibula at the midpoint of the purposes of oblique osteotomy , manufactured by adjusting the outer holder fibula shortening 2mm , 4mm, 6mm model . Osteotomy of the medial malleolus at the pressure
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