Bovine collagen peptides compounds promote the proliferation and differentiation of MC3T3-E1 pre-osteoblasts.

Objective: Collagen peptides (CP) compounds, as bone health supplements, are known to play a role in the treatment of osteoporosis. However, the molecular mechanisms of this process remain unclear. This study aimed to investigate the effects of bovine CP compounds on the proliferation and differentiation of MC3T3-E1 cells.

The efficacy and cost-effectiveness of cell saver use in instrumented posterior correction and fusion surgery for scoliosis in school-aged children and adolescents.

Posterior spinal instrumentation and fusion surgery in school-aged children and adolescents is associated with the potential for massive intraoperative blood loss, which requires significant allogeneic blood transfusion. Until now, the intraoperative use of the cell saver has been extensively adopted; however, its efficacy and cost-effectiveness have not been well established. Therefore, the aim of this study is to determine the efficacy and cost-effectiveness of intraoperative cell saver use.

[Analysis of neurological deficits complications in the treatment of spinal deformity with posterior spinal osteotomy].

Objective: To investigate the incidence and causes of neurologic deficits complications in the treatment of spinal deformity with posterior spinal osteotomy.

Methods: From January 2007 to December 2010, 321 cases of scoliosis or kyphosis patients were treated with posterior spinal osteotomy. There were 124 male and 197 female with an average age of (19 ± 11) years (2 - 56 years).

Surgical treatment of severe scoliosis and kyphoscoliosis by stages.

Background: Although previous reports had reported the use of temporary internal distraction as an aid to correct severe scoliosis, two-stage surgery strategy (less invasive internal distraction followed by posterior correction and instrumentation) has never been reported in the treatment of patients with severe spinal deformity. This study aimed to report the results of the surgical treatment of severe scoliosis and kyphoscoliosis by two-stage and analyse the safety and efficacy of this surgical strategy in the treatment of severe spinal deformities.

Methods: A total of 15 patients with severe scoliosis, kyphoscoliosis or kyphosis who underwent two-stage surgeries (less invasive internal distraction followed by posterior correction and instrumentation) were studied based on hospital records.

[Balloon inflating and cement filling for treatment of avascular necrosis of the femoral head: a three-dimensional infinite-element study].

Objective: To evaluate the biomechanical changes of balloon inflating and cement filling in avascular necrosis of the femoral head using finite-element analysis.

Methods: The procedure of percutaneous balloon inflating and cement filling was simulated in fresh specimen of human femoral head. CT scan and three-dimensional reconstruction were used to establish the three-dimensional model of the femoral head.

[Clinical application of posterior paramedian approach in low back surgeries].

Objective: To prospectively evaluate the clinical effects of posterior paramedian approach in nerve root decompression and reducing muscle damage in low back surgeries.

Methods: Study group included 30 cases treated from January 2007 to May 2008, DDD 8 cases, spondylolisthesis 6 cases, LDH 11 cases, Low back surgery failure re-operation 5 cases. Based on the comprehensive understanding of modern spine anatomy, we abandoned laminectomy in our procedure, applied a mid-waist skin incision, dissect to the paraspinal muscles where you could easily reach the facets by separating between the multifidus and longissimus, enlarge the canal by performing resection along ligamentum flavum and the inner broader of the articular process, remove enough tissue till you could expose the traversing root and the disc space, this method could achieve a limited but precise and effective decompression with not taking out all of the articular process.

[Kyphoplasty for treatment of non-osteoporotic thoracolumbar compressive fractures: analysis of 17 cases].

Objective: To evaluate the efficacy and safety of kyphoplasty for treatment of non-osteoporotic compressive fractures of thoracolumbar vertebrae.

Methods: Seven patients of non-osteoporotic thoracolumbar compressive fractures confirmed by plain X-ray examination and CT scanning, 14 males and 3 females, aged 35.2, all suffering from one level fracture, at T9 in 1 case, T11 in 2 cases, T12 in 7 cases, L1 in 5 cases, L2 in 1 case, and L3 in 1 case were.