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<p><b>OBJECTIVE</b>To evaluate the clinical efficacy of autologous semitendinosus and gracilis tendon grafting with anchor repair for the treatment of chronic achilles tendon rupture and severe scarring.</p><p><b>METHODS</b>From April 2010 to October 2012,26 patients with chronic achilles tendon rupture(with Myerson type III ) and severe scarring were treated with autologous semitendinosus and gracilis tendon grafting with anchor repair. There were 19 males and 7 females,with an average age of 32 years old (ranged, 22 to 47 years). The time from injury to surgery was from 3 to 12 months (7 months on average). The plantar flexion strength of all injuried feet attenuated and single heel rise test were positive in 26 cases before operation. Plaster immobilization and routine rehabilitation therapy were performed after operation. Clinical effects were evaluated by Arner-lindholm criterion and complications were observed after operation.</p><p><b>RESULTS</b>All the patients were followed up from 12 to 24 months with a mean of 16 months. No complications such as achilles tendon re-rupture, wound infection, etc were found during follow-up period. According to the Arner-Lindholm standard, 15 cases got excellent results and 11 good.</p><p><b>CONCLUSION</b>Using autologous semitendinosus and gracilis tendon grafts with anchor repair to treat chronic achilles tendon rupture and severe scarring is a perfect surgical procedure.</p>
Subject(s)
Adult , Female , Humans , Male , Middle Aged , Young Adult , Achilles Tendon , Wounds and Injuries , General Surgery , Chronic Disease , Cicatrix , General Surgery , Follow-Up Studies , RuptureABSTRACT
<p><b>OBJECTIVE</b>To analyze locking plates with bone graft fusion in treating displaced intraarticular calcaneal fractures and determine whether it is beneficial in maintaining restoration of calcaneal height and anatomic reduction of the articular surface.</p><p><b>METHODS</b>From January 2007 to January 2008, 22 patients with displaced intraarticular calcaneal fractures were treated with locking plates with and without bone graft (divided into the bone graft group and non-bone graft group). There were 17 males and 5 females, ranging in age from 18 to 59 years with the mean of 35 years. Sanders III was in 14 cases and Sanders IV in 8 cases. Autologous iliac bone filled defects with locking plates fixation for the bone graft group; just locking plates fixation were performed for non-bone graft group. The Böhler angle and Gissane angle were measured before and after operation. The foot function of two groups were compared according to Maryland standard at the 6th month, 1, 2 years after operation.</p><p><b>RESULTS</b>All patients were followed up with an average of 25 months. There was no significant difference in the recovery of Böhler angle and Gissane angle between two groups (P > 0.05). After the 6 months,1, 2 years, there was no significant difference in the foot function between two groups (P > 0.05), in bone graft group, excellent result was in 6, 7 ,7 cases respectively; and in non-bone graft group, excellent results in 5, 6, 7 cases respectively.</p><p><b>CONCLUSION</b>Bone graft in the surgical treatment of calcaneal fractures is not an advantage.</p>
Subject(s)
Adolescent , Adult , Female , Humans , Male , Middle Aged , Young Adult , Bone Plates , Bone Transplantation , Calcaneus , Wounds and Injuries , General Surgery , Intra-Articular Fractures , General SurgeryABSTRACT
Objective To establish the finite element model of L1～L5 lumbar motion segments with contact theory by self-compiled software and HyperMesh. Method Based on the spine CT continuous images of L1～L5 segments from the healthy volunteer, the three dimensional finite elements model of L1～L5 vertebrae structure was constructed applying self compiled software and HyperMesh, and added with simulating the endplates, joint cartilage intervertebral disc as well as ligament structure. The contact theory was adopted to solve the process between the high and low articular surface surface contacting. ResultsThe three dimensional finite element model with more structure integrity and good geometric similarity was obtained. The simulating results of the physical loading are matched better with the results of the vitro experiment of biomechanics. Conclusions Self compiled software and HyperMesh improved the speed and accuracy for building finite element model of lumbar motion segment, while the introduction of contact theory could enhance its reliability and authenticity.
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ObjectiveTo study the range of movement (ROM) in adjacent vertebral segments and the changes in intervertebral disc stress after implanting artificial cervical disc. MethodA 3D finite element model for normal cervical spine was established using CT images scanned from a cadaver cervical spine. Simulation of bone graft and fusion of vertebral bodies as well as implantation of intervertebral disc prosthesis were performed between C5 and C6 . Then the ROM of adjacent functional spinal units (FSU, C4/5、C6/7) and the stress in C4/5 and C6/7 intervertabral disc were analyzed. Results（1）The model including the structures of ligaments, joint capsule and other soft tissue is built with high reality and accuracy；（2）Vertebral fusion increased movement range in adjacent FSU, and the stress in corresponding discs is significantly raised as well. The stress in nucleus pulposus and annulus fibrosus is increased about 70% at upper segment and 40% at lower segment; (3) After implantation of artificial disc, only the extension of cervicle spine is limited（P<0.05）; the stress in adjacent intervertebral disks is increased less than 10%. ConclusionsThe implanted artificial cervical disc can appropriately reduce the stress in adjacent vertebral segments, which is beneficial to improve the movement of the cervical spine.
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Objective To investigate the changes of plasma vasoactive intestinal peptide (VIP) and glucagon (Glu) in congestive heart failure and its clinical significance. Methods The levels of plasma VIP and Glu were measured with radioimmunoassay in 40 patients with congestive heart failure, including 15 patients with cardiac function in degree Ⅰ, 25 cases with cardiac function in degree ⅡⅣ, and 23 normal children who were served as controls. Results The levels of plasma VIP and Glu increased than that in normal control group[(43.22?5 48) ng/L vs(32.24?4.46) ng/L, P