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Correlation of Hamstring Tendon Size in Pre-Operative MRI Measurement with Intra-Operative Graft Size in Primary Anterior Cruciate Ligament (ACL) Reconstruction

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Journal of Biosciences and Medicines 2024年第3期12卷 150-158页

作者： Nurhanani Abu Bakar mohamad razip sirat Hairiah Abas Saiful Safuan Md Sani Department of Orthopaedic Hospital Pakar Sultanah Fatimah Muar Malaysia Department of Orthopaedic Hospital Tengku Ampuan Rahimah Klang Malaysia Department of Radiology Hospital Pakar Sultanah Fatimah Muar Malaysia Department of Medicine Clinical Research Center Hospital Kuala Lumpur Kuala Lumpur Malaysia

Background: The size of Hamstring autograft of less than 8.0 mm in ACL re-construction is one of the key factors that may contribute to the failure of the graft. In this study, we are going to assess the correlation of pre-operative MRI measurement of Hamstring tendons with the intra-operative ACL graft. Thus, it may help surgeons to anticipate the needs for graft augmentation should the final graft size be smaller than expected. Methods: We retrospectively re-viewed 41 cases of ACL reconstructions in which MRI were done pre-operatively, in Hospital Pakar Sultanah Fatimah (HPSF), Muar between January 2019 until December 2022. MRI measurements of Hamstring tendon (semitendinosus: ST, and gracilis) were done by a radiologist, and the in-tra-operative notes were reviewed for the final graft size. Pearson’s correlation coefficients were calculated to determine the relationship between graft size and tendon cross-sectional area. The intraclass correlation (ICC) by using two-way mixed model with type consistency, the reliability based on average measure was 0.41 (95% CI: ?0.10, 0.69). A p-value < 0.05 was considered sig-nificant. Results: Of 105 patients with primary ACL reconstruction done be-tween January 2019 to December 2022, only 41 patients were included in this study. There was fair correlation (p = 0.048) between pre-operative MRI measurement and the graft diameter intra-operatively. The mean of 17.0 mm of combined diameter of ST and gracilis tendon in MRI may results in graft diameter of 8.3 mm. There was also positive correlation between patients’ height and the intra-operative graft size. Conclusion: These results showed good correlation between pre-operative MRI measurement of Hamstring ten-don size with the intra-operative graft size, hence it is a reliable tool to predict the Hamstring autograft size in ACL reconstruction.

关键词： ACL Reconstruction Pre-Operative MRI Hamstring Tendon

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Electro-oxidation of Glycerol from Cooking Palm Oil by Dehydrogenase Enzymes Immobilized on Poly（o-phenylenediamine） Modified Electrodes

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材料科学与工程（中英文B版） 2011年第5期1卷 603-610页

作者： Zahraa A. Jarjes Mohammed razip Samian Sulaiman A.B. Ghani Pusat Pengajian Sains Kimia Universiti Sains Malaysia USM P. Pinang 11800 Malaysia Pusat Pengajian Sains Kajihayat Universiti Sains Malaysia USM P. Pinang 11800 Malaysia

This study reported on the electrochemical oxidations of glycerol, obtained from cooking palm oil hydrolyzed using commercial lipase, by two monoenzyme systems: (1) glycerol dehydrogenase (GDH); and (2) alcohol dehydrogenase (ADH) immobilized within Nafion layer on the surface of poly(o-phenylenediamine) (PoPD) modified carbon cloth electrode. Another system studied was a bienzyme system of ADH and aldehyde dehydrogenase (AldDH) immobilized similarly on the substrate electrode described earlier. The later was aimed for a possible study of multi-step oxidation of glycerol. Voltammetric studies over potential ranges of -1.5 to 0.1V vs. Ag/AgCl (3 M KCl), have showed that these electrodes displayed mostly quasi-reversible type of electrode processes for the oxidation of glycerol. Various parameters have also been examined for experimental optimum conditions. In general, the maximum oxidative current density for all electrodes was obtained at pH 7 with weight of lipase 0.1-0.15 g and concentration of nicotine adenosine dinucleotide (NAD+) 1-3 mM. The findings were expected useful in the fabrication of anodes in a biofuel cell using glycerol from cooking palm oil.

关键词：甘油脱氢酶修饰电极邻苯二胺电氧化棕榈油固定化乙醇脱氢酶可逆电极过程

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Synthesis, spectral characterization and biological activities of Organotin(IV) complexes with <i>ortho</i>-vanillin-2-hydrazinopyridine (VHP)

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Open Journal of Inorganic Chemistry 2012年第2期2卷 22-27页

作者： Norrihan Sam Md Abu Affan Md Abdus Salam Fasihuddin B. Ahmad Mohd razip Asaruddin Department of Chemistry Faculty of Resource Science and Technology Universiti Malaysia Sarawak Kota Samarahan Malaysia

Five new organotin(IV) complexes of ortho-vanillin-2-hydrazinopyridine hydrazone with formula [RnSnCl4–n(VHP)] [R = Me2, n = 2 (2);R = Ph2, n = 2 (3);R= nBu2, n = 2 (4);R = nBu, n = 2 (5) and R = 1, n = 0 (6)] have been synthesized by direct reaction of ortho-vanillin-2-hydrazinopyridine hydrazone [(VHP), (1)], base and organotin(IV) chloride(s) in absolute methanol. The hydrazone ligand [(VHP), (1)] and its organotin(IV) complexes (2-6) have been characterized by UV-Visible, FT-IR and 1H NMR spectral studies. Spectroscopic data suggested that in the complexes (2-4), the ligand (1) acted as a neutral bidentate ligand and is coordinated to the tin(IV) atom via the azomethine nitrogen and pyridyl nitrogen atoms, whereas the ligand (1) acted as a uninegative tridentate ligand and coordinated to the tin(IV) atom through phenolic-O, azomethine-N and pyridyl-N atoms in complexes (5-6). The toxicity of the ligand (1) and its organotin (IV) complexes (2-6) were determined against Artemia salina. Organotin(IV) complexes showed moderate activity against Artemia salina. The ligand (1) and its organotin(IV) complexes (2-6) were also tested against four types of bacteria namely Bacillus cereus, Staphylococcus aureus, Escherichia coli and Enterobacter aerogenes. All organotin(IV) complexes and the free ligand (1) showed better antibacterial activities against bacteria. Among the organotin(IV) complexes (2-6), diphenyltin(IV) complex (3) showed higher activity against the four types of bacteria.

关键词： Hydrazone Organotin(IV) Complexes Spectral Analyses Toxicity Antibacterial Activity

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