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RISS 인기검색어
- 검색키워드
- 저자 : Mohammad Hatem (검색결과 3 건)
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( Mohammad Kamal Abdelnasser ),( Mohamed Eslam Elsherif ),( Hatem Bakr ),( Mohamed Mahran ),( Moustafa H. M. Othman ),( Yaser Khalifa ) 대한슬관절학회 2019 대한슬관절학회지 Vol.31 No.1
Purpose: Outcomes following total knee arthroplasty (TKA), whether clinical, radiological or survival analysis, have been well-studied. Still, there are some concerns about patient satisfaction with the outcome of the surgery and factors that might contribute to a suboptimal result. This study aims to determine if there is correlation between primary TKA malalignment and early patient-reported outcome measures (PROMs). Materials and methods: Sixty patients, who had primary TKA and a minimum of 2 years of follow up, were recruited for a detailed clinical and radiological examination. Knee alignment was measured in the coronal, sagittal and axial planes. Normal and the outlier measurements of the patients’ knees were defined and the clinical results (PROMs) compared to see if there was a statistically significant difference. Results: Correlation between postoperative limb malalignment in the coronal and the sagittal planes and PROMs was not significant. Conversely, there was significant negative correlation between all types of malrotation and PROMs. Conclusions: Although malalignment has been linked to inferior outcome and implant survival, our results showed that coronal and sagittal limb malalignment has no significant effect on early PROMs. However, all types of component rotational malalignment significantly worsen early PROMs.
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Mushtaq Ahmad Dar,Hatem Abuhimd,Iftikhar Ahmad,Mohammad Islam,Mohammad Rezaul Karim,Hyung-Shik Shin 한국화학공학회 2014 Korean Journal of Chemical Engineering Vol.31 No.7
An initial study on the nucleation and growth of diamond, using hot filament chemical vapor deposition(HFCVD) technique, was carried out on Co and CoO thin buffer layers on non-carbon substrates (Si (100)), and theresults were compared with conventional scratching method. The substrate temperature during the growth was maintainedat 750±50 oC. A mixture of CH4 and H2 (1 : 100 volume %) was used for deposition. The total pressure duringthe two hour deposition was 30±2 Torr. X-ray photoelectron spectroscopy (XPS) study showed the diamond nucleationat different time periods on the Co and CoO seed layers. It is observed that Co helps in nucleation of diamond eventhough it is known to degrade the quality of diamond film on W-C substrate. The reason for improvement in our studyis attributed to (i) the low content of Co (~0.01%) compared to W-C substrate (~5-6%), (ii) formation of CoSi2 phaseat elevated temperature, which might work as nucleation sites for diamond. SEM analysis reveals a change in the morphologyof diamond film grown on cobalt oxide and a significant reduction in the size of densely packed crystallites. Raman spectroscopic analysis further suggests an improvement in the quality of the film grown on CoO buffer layer.
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Habeeb Tamer A.A.M.,Mohammad Hatem,Wasefy Tamer,Mansour Mohamed Ibrahim 대한대장항문학회 2023 Annals of Coloproctolgy Vol.39 No.3
Purpose: The outcomes of open colorectal anastomosis of side-to-end versus end-to-end in nonemergent sigmoid and rectal cancer surgery in adults were compared. Methods: A randomized controlled trial on individuals with sigmoid and rectal cancers was conducted between September 2016 and September 2018. Results: The mean age was 62.58±12.3 years in the side-to-end anastomotic (SEA) group and 61.03±13.98 years in the end-to-end anastomotic (EEA) group. Except for the operative time, intraoperative data revealed no significant differences between the studied groups, and the SEA group revealed that the mean anastomotic time was significantly shorter. Perioperative blood loss, length of stay, reoperation, inpatient death, infection, and bleeding were significantly associated with leakage. There is a statistically significant change regarding the range of bowel frequency in the EEA group only (P=0.04). There is a statistically significant difference regarding incontinence for flatus in the SEA group only (P≤0.001). A statistically significant change in both groups regards incontinence for liquid stools (P≤0.001) and clustering of stools (P≤0.001 and P=0.043). The quality of life in the SEA group significantly dropped at 6 months and then returned to baseline as regards to physical well-being (PWB), functional well-being (FWB), and colorectal cancer symptoms (CCS) with no difference as regards SWB and EWB, while in the EEA group, the exact change happened only as regard PWB and FWB, but SWB and CCS percentage did not return to baseline. Conclusion: The SEA group offers a safe alternative approach to the EEA group.
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