Zhongguo gu shang = China journal of orthopaedics and traumatology
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To observe effects of removing arms and ovarian on lumbar intervertebral disc and vertebral bone mineral density (BMD) by establishing rat model of lumbar intervetebral disc degeneration (IDD) with kidney deficiency, and to explore internal mechanism of disc degeneration, relationship between disc degeneration and osteoporosis. ⋯ Rats model of lumbar disc degeneration established by removed forelimbs and ovariectomized can occure "bone like"--osteoporosis, which is similar with clinical kidney lumbar disc degeneration in tissue morphology, molecular cell biology expression.
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Comparative Study
[Comparison of internal fixation and semi-shoulder arthroplasty in treating proximal humerus comminuted fractures in elderly].
To explore clinical effectiveness of internal fixation and semi-shoulder arthroplasty in treating proximal humerus comminuted fractures in elderly. ⋯ There is no difference in qulity of life and functional recovery for the treatment of proximal humerus comminuted fractures by open reduction and internal fixation and semi-shoulder arthroplasty. However, the complication rate in semi-shoulder arthroplasty was lower than that of internal fixation group.
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To evaluate therapeutic effects of Wallis interspinous dynamic stabilization in treating ASD after lumbar spinal fusion. ⋯ There is no difference in immediate effects between two groups. Both of them can obtain good results for effective decompression. Medial-term effectiveness of treatment group is obviously better than control group, which depends on Wallis interspinous dynamic stabilization to plays good biology effects and effective accelerate adjacent degeneration caused by lumbar fusion.
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To explore the therapeutic efficacy of unilateral multiple channels approach in percutaneous vertebroplasty (PVP) for osteoporotic vertebral fractures. ⋯ The unilateral multiple channels approach in percutaneous vertebroplasty can obviously relieve the pain and effectively improve the functional activity, provide a satisfied cement distribution in vertebral body with cement leakage after a small amount infusion.
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To compare different surgical approaches in order to obtain better surgical exposure and more reliable reset fixation according to the different types of quadrilateral area fractures of acetabular. ⋯ Single classic surgical approach can only use for some types of the complex quadrilateral area fractures of acetabular while combination approach may need for some fractures. Modified Stoppa approach combined with ilioinguinal approach or a combination of anterior column acetabular screw fixation are the most effective surgical approaches for complex quadrilateral area fractures of acetabular.