ObjectiveTo understand the progress and problems of liver transplantation standard for hepatocellular carcinoma. MethodsThe related articles regarding transplant criteria of hepatocellular carcinoma were reviewed and analyzed. ResultsSince Milan criteria were proposed by Mazzaferro in 1996, a number of criteria were porposed by many transplant centers. These criteria expanded Milan criteria. Compared with Milan criteria, these criteria expanded tumor size and (or) tumor number, or combined with some biological variables, or combined with some immunological variables. However, there are still some issues should be clarified. ConclusionDespite there are many transplant criteria of hepatocellular carcinoma, but a number of issues should be further investigated.
ObjectiveTo summarize the effectiveness of nitinol memory alloy two foot fixator with autologous cancellous bone grafting in treating old scaphoid fracture and nonunion.MethodsBetween January 2013 and January 2017, 11 patients of old scaphoid fracture and nonunion were treated with nitinol memory alloy two foot fixator and autologous cancellous bone grafting. All patients were male with an average age of 26.1 years (range, 18-42 years). The fractures were caused by sport in 3 cases, falling in 7 cases, and a crashing object in 1 case. The interval between injury and operation was 6-18 months (mean, 8.9 months). Postoperative outcome measures included operation time, fracture healing time, grip strength, range of motion (ROM) of flexion, extension, ulnar deviation, and radial deviation, Mayo score, visual analogue scale (VAS) score, and the Disabilities of the Arm, Shoulder, and Hand (DASH) score.ResultsThe operation time was 35-63 minutes (mean, 48 minutes). All incisions had primary healing with no infection and loosening or breakage of internal fixator. All patients were followed up 12-30 months (mean, 20.7 months). X-ray films showed that fracture healing was achieved in all patients with an average time of 15 weeks (range, 12-25 weeks). All internal fixators were removed after 10-12 months of operation (mean, 11.2 months). At last follow-up, the grip strength, ROMs of flexion, ulnar deviation, and radial deviation were superior to those before operation (P<0.05), no significant difference was found in ROM of extension between pre- and post-operation (t=0.229, P=0.824). There were significant differences in above indexes between affected and normal sides (P<0.05). At last follow-up, the Mayo, VAS, DASH scores were also significantly superior to those before operation (P<0.05).ConclusionFor the old scaphoid fracture and nonunion, Ni-Ti arched shape-memory alloy fixator and autologous cancellous bone grafting can obtain good effectiveness, which is an effective treatment.
ObjectiveTo investigate the feasibility and safety of subtotal hepatectomy with preservation of caudate lobe for extensive hepatolithiasis with atrophy of left and right hepatic lobe and obvious hypertrophy of caudate lobe.MethodThe clinicopathologic data of patient with hepatolithiasis whose left and right hepatic lobe atrophied and caudate lobe obviously hypertrophied admitted to the West China Hospital of Sichuan University in February 2020 were analyzed retrospectively.ResultsThe patient was in good general condition before the operation. The cardiopulmonary and kidney functions were normal. The liver function was Child-Pugh A grade, and the liver reserve function was good. The body surface area of the patient was 1.745 m2 and the standard liver volume was 1 235 mL. The volume of caudate lobe calculated by the 3D reconstruction of CT image was 735 mL, accounted for 59.5% of the standard liver volume. The patient was evaluated to be able to tolerate the operation. The patient successfully experienced the operation of subtotal hepatectomy with caudate lobe preservation. The postoperative liver function recovered well. The gastric tube was removed on the 4th day after the operation. The peritoneal drainage tube was removed on the 5th day after the operation. The patient was discharged on the 6th day after the operation. The postoperative pathological diagnosis: The intrahepatic bile duct was dilated with stones inside. A large number of inflammatory cell infiltrated around the bile duct. The fibrous tissue hyperplasia, small bile duct hyperplasia and inflammatory cell infiltration were observed in the portal area. The pathological changes were consistent with the changes of hepatolithiasis.ConclusionAccording to analysis results of this case, subtotal hepatectomy with preservation of caudate lobe is safe and feasible for hepatolithiasis patient with obvious atrophy of left and right hepatic lobe and obvious hypertrophy of caudate lobe.
ObjectiveTo summarize the research progress in artificial metacarpophalangeal joint and interphalangeal joint prostheses.MethodsThe research literature on artificial metacarpophalangeal joint and interphalangeal joint prostheses at home and abroad was reviewed and summarized from anatomy, prosthesis design, and material development.ResultsThe artificial joint replacement can correct deformity, relieve pain, and improve function immediately. In the past 50 years, many researches have focused on the design and material of prostheses and surgical technique of joint replacement. There are three types of prostheses, including hinged limit-type-prosthesis, semi-limit-type-prosthesis, and non-limit-type-prosthesis. The prostheses have their own advantages and disadvantages, the long-term effectiveness of joint replacement is not ideal.ConclusionThe metacarpophalangeal joint and interphalangeal joint prostheses with more anatomical structure and biocompatible materials are needed.
ObjectiveTo review the development and clinical application of ankle prosthesis.MethodsThe recent literature on ankle prosthesis design and clinical application was reviewed and analyzed. ResultsCompared with the hip and knee prostheses, the ankle prosthesis develops slowly and has been developed to the third generation. The ankle joint has a special structure of multi-axis movement. The design of the first and second generations of prostheses is not conformed to the biomechanics of the ankle. The third generation of prosthesis is more conform to the characteristics of ankle biomechanics, with high postoperative survival rate and satisfactory clinical outcome. ConclusionAt present, the survival rate of ankle prosthesis is low, and there is still much room for improvement in biomechanics, materials, and other aspects.
ObjectiveTo investigate the expression of IQ motif-containing GTPase activating protein 1 (IQGAP1) in hepatocellular carcinoma (HCC) tissues, and to analyze the relationship of IQGAP1 and patient's clinical characteristics and prognosis after liver resection. MethodsData of 79 patients who received liver resection between 2007 and 2009 in our hospital were collected. The expression of IQGAP1 was examined by immunohistochemical tests. The clinical characteristics and prognosis were compared. ResultsIQGAP1 was detected in 43 patients (54.4%). Patients with IQGAP1 expression had more poor differentiation and microvascular invasion. The cumulative recurrence-free rate and overall survival rate in 1-, 3-, and 5-year after operation of patients with IQGAP1 expression (cumulative recurrencefree rate:67.4%, 39.5%, and 23.3%; cumulative overall survival rate:97.7%, 71.5%, and 53.3%) were poor than patients without IQGAP1 expression (cumulative recurrence-free rate:100%, 94.4%, and 83.3%; cumulative overall survival rate:1007%, 97.2%, and 88.9%), P < 0.001. ConclusionsHCC patients with IQGAP1 expression had a poor prognosis after liver resection. IQGAP1 may be a prognostic indicator for hepatocellular carcinoma.
ObjectiveTo summarize the clinical and imaging features of hepatic adrenal rest tumor and to explore its tissue source, diagnosis, differential diagnosis and treatment.MethodsThe clinical data of patient with hepatic adrenal rest tumor in the West China Hospital of Sichuan University were analyzed retrospectively. The diagnostic methods of liver adrenal junction were summarized by consulting relevant literatures.ResultsThe patient was admitted to the hospital with right hepatic lesions. The preoperative imaging examination showed that it was the imaging features of hepatocellular carcinoma. The right hemihepatectomy was proposed. During the operation, it was found that the lesions were not from the liver, but from the retroperitoneum (The possibility of adrenal origin was very high). Then, the retroperitoneal occupying lesions was completely resected via urology surgery consultation. The pathological results showed that the tumor was adrenocortical carcinoma.ConclusionsIt is very difficult to accurately diagnose nature of hepatic adrenal rest tumor before operation only by results of cross-sectional imaging, especially for some adrenal tumor. It needs to fully be evaluated and even to perform multidisciplinary discussion if necessary for patients who have hepatic adrenal rest tumor before operation, so as to avoid misdiagnosis to a certain extent.