Zhonghua yi xue za zhi
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Zhonghua yi xue za zhi · Dec 2016
[Medial anterior flange overhang related to the prosthesis selection determined by femoral sizer in total knee arthroplasty].
Objective: To evaluate the medial anterior flange overhang related to the femoral prosthesis size determined by femoral sizer in total knee arthroplasty. Methods: Sixty one cases of varus knee osteoarthritis (61 knees) were analyzed from January 2014 to January 2015, 14 males and 47 females, aged (66.8±6.8) year old. 3D models of distal femur were established by Mimics, total knee arthroplasty surgeries were simulated and the medial and lateral femoral condylar anteroposterior diameter were measured. According to the AP diameter of lateral femoral condyle (lateral condyle group) and femoral sizer (sizer group), different size of the PFC Sigma femoral prosthesis models were imported to mimics, and the coverage of medial anterior femoral flange were compared. ⋯ The femoral size, overhang ratio of anterior chamfer line and midpoint of the flange in male were significantly larger than females (P<0.05). Conclusion: The AP diameter determined by femoral sizer instrument had a tendency to larger prosthesis, and the risks of medial femoral anterior flange overhang increased. Medial anterior flange overhang in male was significantly less than female, but the difference had no correlation to the distal femur asepect ratio.
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Zhonghua yi xue za zhi · Dec 2016
Comparative Study[Comparison of curative effect and prognosis analysis of patients with spinal metastases treated by percutaneous vertebroplasty combined with postoperative radiotherapy and radiotherapy alone].
Objective: To evaluate the efficacy of percutaneous vertebroplasty(PVP) combined with postoperative radiotherapy and radiotherapy alone in the treatment of spinal metastatic tumors and to evaluate the prognostic factors for survival. Methods: From December 2011 to December 2015, according to the choice of treatment, patients in group A(60 cases) were treated with PVP combined with postoperative radiotherapy and those in group B(50 cases) underwent radiotherapy alone, age, sex, primary tumor type , and other basic characteristics were analyzed in both groups in department of orthopedics and radiotherapy department, 307 Hospital of the People's Liberation Army. The pain visual analogue scale(visual analogue scale, VAS), tumors of the spine instability score(the spinal instability neoplastic score and sins), physical status score(Karnofsky performance score and KPS) were used to evaluate pain, spinal stability improvement and physical condition. ⋯ Conclusion: PVP combined with postoperative radiotherapy for spinal metastases is better than radiotherapy alone in the treatment of relieving pain, maintaining the stability of vertebral body and improving the quality of life of patients. Survival prognosis was similar in two groups. The types of primary tumors, visceral metastasis, systemic medical treatment, the number of vertebral bodies and the physical condition are important prognostic factors in the survival of patients with spinal metastases.
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Zhonghua yi xue za zhi · Dec 2016
Comparative Study[Comparison of the outcomes between anterior cervical discectomy and fusion versus posterior laminectomy and fusion for the treatment of multi-level cervical spondylotic myelopathy combined with cervical kyphosis].
Objective: To compare the outcomes between anterior cervical discectomy and fusion (ACDF) and posterior laminectomy and fusion(LF) for multilevel cervical spondylotic myelopathy combined with cervical kyphosis. Methods: From January 2010 to June 2014, 54 patients with cervical spondylotic myelopathy combined with cervical kyphosis underwent surgical treatment. Among them, 29 patients were underwent ACDF, and 25 patients were underwent LF in Department of spine surgery, Tianjin Union Medical Centre. ⋯ There were 16 patients with complications in the anterior approach group and 7 patients with complications in the posterior approach group(P<0.05). Conclusion: For multilevel cervical spondylotic myelopathy combined with cervical kyphosis, ACDF can restore the lordosis better, fuse less levels but have more complications compared with LF. Patients treated with LF can get as good life quality as with ACDF and have less complications although fuse more levels compared with ACDF.
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Zhonghua yi xue za zhi · Dec 2016
[Resting-state functional magnetic resonance study of brain function changes after TIPS operation in patients with liver cirrhosis].
Objective: To investigate the brain function changes in cirrhosis patients after transjugular intrahepatic portosystemic shunt (TIPS), resting-state functional MRI (rs-fMRI) performed and fractional amplitude of low frequency fluctuation (fALFF) was analyzed. Methods: From January 2014 to February 2016, a total of 96 cirrhotic patients from invasive technology department and infection department in the First Affiliated Hospital of Anhui Medical University were selected , the blood ammonia data of 96 cirrhotic patients with TIPS operation in four groups were collected after 1, 3, 6 and 12 month, and all subjects performed rs-fMRI scans. The rs-fMRI data processed with DPARSF and SPM12 softwares, whole-brain fALFF values were calculated, and One-Way analysis of variance , multiple comparison analysis and correlation analysis were performed. ⋯ Conclusion: The resting state brain function increased or decreased with course of disease in cirrhosis patients after TIPS operation. The brain activity of limbic system and sensorimotor system all had significant correlation with blood ammonia levels. The blood ammonia level and the function of relative brain regions after 6-month with TIPS operation can be gradually improved.
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Zhonghua yi xue za zhi · Dec 2016
[Effects of mTOR-Cdc42 signaling pathway on phagocytosis of alveolar macrophages in chronic obstructive pulmonary disease mice].
Objective: To investigate effects of mammalian target of rapamycin (mTOR)- cell division cycle 42 (Cdc42) signaling pathway on phagocytosis of alveolar macrophages (AMs) in chronic obstructive pulmonary disease (COPD) mice. Methods: Forty mice were randomly divided into control group and model group. Each group contained 20 mice. ⋯ Negative correlations were existed between the mRNA, protein and activity of mTOR, Cdc42 and MFI in all group. Conclusions: mTOR-Cdc42 signaling pathway is activated and related to phagocytosis deficiency of AM in COPD. It can be inferred that the pathway is involved in the pathogenesis of COPD.