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All Journal Medical Journal of Indonesia The New Ropanasuri Journal of Surgery
Theddeus O. H. Prasetyono
Cipto Mangunkusumo Hospital/ Faculty Of Medicine University Of Indonesia, Jakarta, Indonesia
Biochemistry, Genetics & Molecular Biology Health Professions Immunology & microbiology Medicine & Pharmacology

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The Efficiency of Well-Written Manuals Aided-Hand Knotting Skills Acquisition for Undergraduates Prasetyono, Theddeus O.H; Rezkini, Putri
The New Ropanasuri Journal of Surgery
Publisher : UI Scholars Hub

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Abstract

Introduction. Standard procedural skills training methods include tutorial, workshop, and feedback. Written manuals might add value to those standard methods; nevertheless, depends on how well they are composed. This research is aimed to evaluate the efficiency of well-written manuals of hand knotting skills in order to improve students’ procedural skills learning and competency. Methods. This research was conducted through preliminary study to identify the assessor reliability and main study to evaluate the students’ scores for reef and surgeon’s knots using an objective structured assessment of technical skills (OSATS). Subjects’ preparedness and perception of the quality of the manuals were evaluated through survey. Students were randomly divided into two groups. The treatment group received written manuals a day before the workshop. Both groups experienced same five steps procedural skills teaching methods. The results were analyzed by SPSS 17.0 through Pearson Chi-square test and independent t-test. Results. Preliminary study showed that the assessors had no difference in evaluating students’ skills. Main study included 31 subjects in treatment group and 34 subjects in control group. The OSATS scores were statistically significant different between the groups. Students in treatment group had higher mean scores (43.42±7.98) than those in control group (27.21±5.64); p Conclusion. Well-written manuals of hand knotting skills given prior to skills training improve student’s skills acquisition in addition to the standard teaching methods.
The Application of Bromelain Enzyme on Pig Skin to be used as Surgery Training Model Prasetyono, Theddeus O.H; Andrian, Christopher R; Kinanthi, Elisabet L.A; Putri, Siti R.K
The New Ropanasuri Journal of Surgery
Publisher : UI Scholars Hub

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Abstract

Introduction. Postmortem changes in pigskin made it difficult to be manipulated as a model for advanced technique in surgery training. The use of bromelain enzyme on these pigskins could be an alternative way to obtain the ideal surgery training model. Method. Thirty-five pigskin-blocks (10×15cm) was divided evenly into seven groups consisted of six groups of different bromelain enzyme treatment (4g/20min, 4g/40min, 8g/20min, 8g/40min, 12g/20min, 12g/40min) and one group of control. Then five chief-plastic-surgery-residents blindly assessed and scored each pigskin and compared its likeliness to the back of human skin. The scores were then analyzed with an interrater reliability test using SPSS 16.0. Results. All five assessors unanimously chose the 8g/40min group as the most likeliness to the back of human skin. The highest score was obtained for piercing the needle into the pigskin (8.4 ± 0.54). Conclusion: The appliance of 8 grams bromelain enzyme in 10×15cm pigskin blocks for 40 minutes was proven to be an ideal surgery training model comparing the back of human skin, especially for tangential excision.
Toward contextualized excellence in clinical practice Prasetyono, Theddeus Octavianus Hari
Medical Journal of Indonesia Vol. 34 No. 2 (2025): June
Publisher : Faculty of Medicine Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13181/mji.ed.258286

Abstract

Hand surgery without tourniquet as a model for the development of surgical service innovation for competitive advantage-based service readiness Prasetyono, Theddeus Octavianus Hari
Medical Journal of Indonesia Vol. 33 No. 1 (2024): March
Publisher : Faculty of Medicine Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13181/mji.com.247399

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[No abstract available]
Continuous reflection in medical education: forming doctors who are both professional and humanist Prasetyono, Theddeus Octavianus Hari
Medical Journal of Indonesia Vol. 34 No. 4 (2025): December
Publisher : Faculty of Medicine Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13181/mji.ed.258566

Abstract

[No abstract available]
Effect of umbilical cord-mesenchymal stem cells on skin tensile strength in pressure ulcers: a rat model study Aulia, Indri; Dilogo, Ismail Hadisoebroto; Prasetyono, Theddeus Octavianus Hari; Pawitan, Jeanne Adiwinata; Kekalih, Aria; Siregar, Nurjati Chairani; Whulanza, Yudan; Hasibuan, Lisa
Medical Journal of Indonesia Online First
Publisher : Faculty of Medicine Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13181/mji.oa.268222

Abstract

BACKGROUND Stem cell therapy has emerged as a promising alternative for the management of chronic wounds, including pressure ulcers. Tensile strength, which reflects the biomechanical integrity of the skin, serves as an objective measure of wound healing. This study aimed to evaluate the effect of locally administered umbilical cord-mesenchymal stem cells (UC-MSCs) on the tensile strength of healing 3rd-degree pressure ulcers in a Sprague Dawley rat model. METHODS 21 adult male Sprague Dawley rats were divided into 3 groups: normal rats without ulcers, untreated pressure ulcer as control, and pressure ulcers treated with UC-MSCs. The treatment group received locally injected 4 × 10⁶ UC-MSCs at the ulcer site. On day-21, the tensile strength parameters (rupture point, elongation at break, and elastic modulus) of the dorsal skin were assessed using the Universal Testing System. RESULTS When expressed relative to normal skin tensile strength, the UC-MSC group exhibited higher tensile parameters that were higher than the controls by 2.08% for rupture point, 3.29% for elongation at break, and 8.42% for elastic modulus. Although these differences between the UC-MSCs and control groups across all tensile strength parameters were not statistically significant, a clear trend toward improved tensile strength parameters were observed in the UC-MSCs group. CONCLUSIONS Local UC-MSCs administration showed a consistent trend toward improved tensile strength in healing 3rd-degree pressure ulcers, albeit without statistically significant differences compared to controls. These findings support the further exploration of UC-MSCs as a potential treatment for promoting biomechanical restoration in healing pressure ulcers.
Co-Authors Andrian, Christopher R Aria Kekalih Indri Aulia Ismail Hadisoebroto Dilogo Jeanne Adiwinata Pawitan Karina F. Moegni Kinanthi, Elisabet L.A Laureen Supit Lisa Hasibuan Nandita M. Putri Nurjati Chairani Siregar Putri, Siti R.K Rezkini, Putri Vivi V. Guizot Yudan Whulanza