Objective To explore the clinical value of laparoscopic hepatectomy for the treatment of hepatic hemangioma.Methods Clinical data of forty-six patients treated with hepatic hemangioma hepatectomy in Dongfeng Hospital Affiliated to Hubei University of Medicine from February 2014 to February 2017 were collected.The patients were divided into the laparoscopic hepatectomy group (LH group 26 cases) and the open hepatectomy (OH group 20 cases) by retrospective descriptive study.The operation time,hepatectomy time,intraoperative blood loss,postoperative complications,postoperative liver function recovery time,hospitalization time,total hospitalization cost,number of residual tumor tissues and follow-up recurrence rate of the two groups were compared.Results The length of incision in the laparoscopic hepatectomy group was significantly lower than that in the open hepatectomy group ((5.41±0.53) cm vs.(19.72±1.26) cm,t=52.335,P=0.000),the intraoperative blood loss,operation time,exhaust time,indwelling drainage time,first postoperative feeding time and postoperative hospitalization time in the LH group were significantly lower than those in the OH group ((572.23±16.92) ml vs.(911.75±19.41) ml,(149.52±18.14) min vs.(171.47±21.35) min,(2.84±0.63) d vs.(3.46±0.57) d,(5.74±3.380) d vs.(10.62±3.59) d,(2.08±0.52) d vs.(3.10±0.61) d,(8.91±2.16) d vs.(14.84±2.09) d,t=63.287,3.767,3.447,4.725,6.117,9.360,P<0.05);in the LH group,liver function recovery index alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were significantly lower than those in the OH group ((45.73±2.16) U / L) vs.(149.29±3.44) U/L,(47.32±1.89) U/L vs.(50.60±3.53) U / L,t=124.985,4.051,P<0.05).Conclusion Laparoscopic hepatectomy for patients with hepatic hemangioma is characterized by less trauma,quicker recovery and higher safety.

Objectives:To evaluate forearm intramuscular autograft Tx vs. forearm subcutaneous ultrasound-guided homogenate injection transplantation. Methods:One hundred-ten end-stage chronic renal failure patients who after total parathyroidectomy and autologous forearm Tx from Mar 2011 to Mar 2020 were enrolled for retrospective analysis.The control group received autologous parathyroid forearm intramuscular autograft Tx, and the observation group had the anterior fascia of the flexor carpus ultrasound-guided homogenate injection Tx. We evaluated the effects of transplantation between the two groups.Results:There were no significant differences in the levels of iPTH, blood calcium, blood phosphorus, and calcium-phosphorus product between the two groups of patients 30 minutes , 1 month , and 3 months after surgery.The two-dimensional ultrasound simulated ellipse dispersion volume in the observation group is much smaller than that in the control group [(2.51±0.41) cm 3vs. (1.91±0.55) cm 3, t=6.519, <0.001] The linear regression equation of the actual volume of the three-dimensional ultrasound in the observation group and the iPTH value in the observation group after 3 months is Y1=47.728+ 122.337X, r1=0.892, P<0.05. The linear regression equation of the two-dimensional ultrasound simulated ellipse diffusion volume in the observation group and the iPTH value in the observation group at 3 months after operation was Y2=121.408+ 81.736X, r2=0.883, P<0.05. Conclusion:Compared with intramuscular Tx, the recovery levels of iPTH, calcium, phosphorus and calcium-phosphorus product after the anterior fascia of the flexor carpus ultrasound-guided homogenate parathyroid glands injection Tx are similar, but its operation is more simple and diffusion volume is smaller.

BACKGROUND: Ultra-high molecular weight polyethylene (UHMWPE) is widely used as acetabulum. The hip joint will produce lots of grind particles and lead to loosening of artificial joint because of alternating load and bad lubricate condition.OBJECTIVE: To learn about the lubricate mechanism of joint, introduce the present situation on artificial hip joint of UHMWPE including wear behavior and wear resistance properties, and grope for scientific evaluate method of tribological properties in artificial joints.RETRIEVAL STRATEGY: The articles published between January 2000 and October 2007 were searched by using computer with the key terms "hip joint, ultra-high molecular weight polyethylene, tribology" in CNKI, Weipu Science and Technology Database, Wanfang Database, and its language was limited to Chinese. Meanwhile, the English articles were searched in IEEE/IEE Electronic Library and Elsevier Electronic Journal Database with the key terms "hip simulators, ultra-high molecular weight polyethylene, tribology ". Those referring to the friction and wear property of the joints were included, whereas repeated researches were deleted.LITERATURE EVALUATION: Totally 729 articles were received. After the primary screening of the titles and abstracts, 601 repeated or similar researches were excluded, and other 128 articles were adopted for further analysis, finally 22 articles in accordance with the inclusion criteria were included as references.DATA SYNTHESIS: The study about UHMWPE focused two points, one is surface modification, the other is wear and friction mechanism.①The study indicates that wear properties of UHMWPE can be improved by surface modification, such as ion implantation and nanometer padding have a remarkable elevating ability of the wear and mechanical properties.②At recent years, scholars do many basal experiences about the tribology of hip joints, and have approved that wear rate of friction pairs would reduce under biological lubricate condition using artificial joint simulators or traditional tester in various conditions.CONCLUSION: The study about hip joint in China drops behind the developed counties, this traditional method can not really reflect wear and friction properties in vivo. Therefore, the following research should include making clear the relationships of load, environmental condition and wear of artificial joint in vivo, as well as groping for a scientific evaluate method of tribological properties in hip joints.

Objective:To evaluate alteration of autograft function by pathological types after total parathyroidectomy (tPTX) plus autotransplantation (AT) in patients of hyperthyroidism.Methods:A total of 51 patients with end-stage chronic renal failure who underwent total parathyroidectomy with autologous forearm transplantation from Mar 2017 to Feb 2021 were divided into chief cell type (CC) and oxyphil cell type (OC) according to dominating graft cell type. iPTH, calcium, phosphorus and ALP levels were compared between the two groups from the perioperative period to 6 months and the 3D ultrasonography was performed at 6 months to cocalculate the size of the autograft.Results:Between the two groups, there were no statistically significant differences in iPTH, blood calcium, blood phosphorus, or ALP levels pre-,and 30 minutes, one month post surgery (all P>0.05). On three months, there was no significant difference in ALP levels [CC group: (99±23) U/L, OC group: (89±35) U/L, t=0.776, P=0.442]. At 6 months the PTH level [CC group: (290±77) pg/ml, OC group: (246±59) pg/ml, t=2.034, P=0.047], and blood calcium [CC group: (2.62±0.65) mmol/L, OC group: (2.21±0.20) mmol/L, t=2.531, P=0.015] blood phosphorus [CC group: (1.38±0.28) mmol/L, OC group: (1.68±0.34) mmol/L; t=-3.269, P=0.002], were all in favor of CC group. By 3D ultrasnography at 6 months the size of autograft was larger in CC group than in OC group [V cc=(2.17±0.37) cm 3,V oc=(1.85±0.29) cm 3, t=3.172, P<0.05]. Recurrences at 1 year after surgery were not significantly different between the two groups ( ncc=3, noc=1, t=0.277, P>0.05). Conclusion:The biological activity of CC-type grafts is higher than that of OC suggesting a longer functioning period as a parathyroid autograft.