• Journal of Korean Neurosurgical Society
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• v.41 no.3
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• pp.193-195
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• 2007

Middle cerebral artery [MCA] aneurysms are a common source of subarachnoid hemorrhage [SAH]. But, ruptured distal MCA aneurysm is very rare, and their clinical and radiological features are poorly understood. Microsurgical repair remains the most common method used to treat distal MCA aneurysm, even though endovascular coiling has been favored recently. We report our experience of successful coiling for ruptured distal MCA aneurysm, In selected patients, coiling may be a good treatment option for ruptured distal MCA aneurysm.

• Journal of Korean Neurosurgical Society
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• v.55 no.2
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• pp.110-113
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• 2014

Perineurial cysts (Tarlov cysts) are lesions of the nerve root that are often observed in the sacral area. There is debate about whether symptomatic perineurial cysts should be treated surgically. We presented three patients with symptomatic perineurial cyst who were treated surgically, and introduced sacral recapping laminectomy. Patients complained of low back pain and hypesthesia on lower extremities. We performed operations with sacral recapping technique for all three. The outcome measure was baseline visual analogue score and post operative follow up magnetic resonance images. All patients were completely relieved of symptoms after operation. Although not sufficient to address controversies, this small case series introduces successful use of a particular surgical technique to treat sacral perineural cyst, with resolution of most symptoms and no sequelae.

• Journal of Korean Neurosurgical Society
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• v.40 no.5
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• pp.369-372
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• 2006

The dissecting aneurysms of the posterior cerebral circulation arise most commonly from the vertebral artery and occasionally extend to the posterior inferior cerebellar artery[PICA]. The dissecting aneurysm localized in the PICA without involving the vertebral artery is rare. We present a PICA dissecting aneurysm that had kaleidoscopic clinical course of bleeding, occlusion, and recanalization before the surgery. The patient had serial follow-up angiograms based on significant changes of clinical status. The patient successfully underwent microsurgical trapping with clips for the dissecting aneurysm and showed neurological improvement.

• Journal of Korean Neurosurgical Society
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• v.38 no.2
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• pp.136-140
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• 2005

The authors describe two cases of Brown-Sequard syndrome associated with cervical disc herniation. In both cases, magnetic resonance images of the cervical spine showed a large paramedian disc herniation at C5-C6 with ipsilateral severe spinal cord compression. Microsurgical removal of the herniated disc via anterior foraminotomy was performed and complete decompression of the spinal cord was achieved. Postoperatively, the neurological symptoms recovered rapidly and both patients experienced a complete remission of their symptoms. Although Brown-Sequard syndrome is rarely associated with degenerative cervical spine disease, cervical disc herniation should be kept in mind and prompt evaluations are mandatory. To the best of our knowledge, these are the first reported case of Brown-Sequard syndrome produced by cervical disc herniation which was treated by anterior foraminotomy.

• Journal of Korean Neurosurgical Society
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• v.45 no.3
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• pp.133-142
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• 2009

The advent of endovascular therapy for intracranial aneurysms and the rapid advances in that field have supplanted microsurgical treatment for many intracranial aneurysms. Applying current outcome data and other parameters, nuances of selecting the modality of treatment for intracranial aneurysms are reviewed. Patient factors, such a age, co-morbidities, vasospasm and other medical conditions, are addressed. A custom-tailored multimodality treatment paradigm for the management of ruptured and unruptured aneurysms will maximize the favorable results seen in this difficult patient population.

• Journal of Biomedical Engineering Research
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• v.20 no.4
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• pp.401-407
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• 1999

A microsurgery telerobotic system has been developed to aid surgeons from physiological tremor, eye stram, hand tremor, contagious and radioactive hazard. This paper identifies four general areas of advanced microsurgery and analyzes the motion, tools, accuracy and applying forces with respect to microsurgery tasks, and proposes the criteria to design the microsurgical robot. The analysis of microsurgery can be helpful to clarify some basic concept and design of surgical robots. Based on this analysis results, we propose an efficient in-parallel-platform manipulator having a special kinematic structure suitable for microsurgery.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.39 no.1
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• pp.3-8
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• 2013

Reconstruction of oral soft-tissue defects following resection of oral carcinomas can be achieved using various techniques including microsurgical tissue transfer. However, there seems to be a role for regional or local flaps. Small to medium-size defects can be functionally reconstructed with the platysma myocutaneous flap as an excellent choice particularly in medically compromised patients not being eligible for free tissue transfer. The present paper reviews the indication, surgical technique, and complications following reconstruction of defects of the oral cavity with the platysma myocutaneous flap.

• Archives of Reconstructive Microsurgery
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• v.14 no.1
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• pp.14-17
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• 2005

Purpose: Authors have performed free tissue transplantation in the upper and lower extremities with sensory flaps and evaluated the sensory function recovery. Materials and methods: Between 1992 through 2004, sensory free flap articles published in the journal of the Korean microsurgical society, were reviewed and recovery of sensory function was assessed by static two-point discrimination test. Results: Static two point discrimination test showed average 6.7 mm in the thumb, average 12 mm in the hand and 7 cm of the dorsalis pedis flap, 20.5 mm of the lateral arm flap and over 8 cm of the forearm flap in the foot. Conclusion: Sensory flaps provide the protective and useful coverage in the upper and lower extremities and have benefit for activities for daily life in free tissue transferred patients.

• Archives of Reconstructive Microsurgery
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• v.7 no.2
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• pp.88-94
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• 1998

Free vascularized fibular transplantation is one of the most useful living bone reconstructive procedure in microsurgical field. Concerning about donor site morbidity, the donor has minor problems of ankle stability and muscle power weakness and transient peroneal nerve symptoms. That problems can be minimized with longitudinal splitted osteotomy on the donor fibula if the bone defect in recipient site is not so large. Half splitted fibula with peroneal arterial pedicle which contains nutrient artery and periosteal vessels, grafted bone can survive with those vascular supplies. Authors underwent five cases of half splitted free vascularized fibular transplantation from 1985. There were no evidence of devascularization in all cases, we can minimized donor morbidity with leaving half fibula intact on donor site. The problem of that technique is technically demanding in longitudinal splitting of bone without damage to peroneal nutrient vessels and periosteal soft tissues which attached to the bone. Authors can propose longitudinal half fibular transplantation is one of modification in free vascularized bone transplantation that minimize donor defect.

• Archives of Plastic Surgery
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• v.41 no.3
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• pp.209-212
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• 2014

Microsurgery training in Singapore began in 1980 with the opening of the Experimental Surgical Unit. Since then, the unit has continued to grow and have held microsurgical training courses biannually. The road to becoming a full-fledged reconstructive surgeon requires the mastering of both microvascular as well as flap raising techniques and requires time, patience and good training facilities. In Singapore, over the past 2 decades, we have had the opportunity to develop good training facilities and to refine our surgical education programmes in reconstructive microsurgery. In this article, we share our experience with training in reconstructive microsurgery.