Publications by authors named "Seung-Yong Sung"

Article Synopsis
  • * Both techniques were found to significantly improve pain levels, wrist function, and strength over two years, but there were no major differences in results between the two methods.
  • * The arthroscopic method showed quicker recovery in terms of wrist movement in the early months, while long-term recovery rates and recurrence of instability were similar in both groups.
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Epithelioid hemangioma of bone is a rare benign vascular tumor. Because of the locally destructive clinical presentation and the presence of atypical histologic features with increased mitotic activity and necrosis, it is often misdiagnosed as low-grade malignant epithelioid hemangioendothelioma or high-grade malignant epithelioid angiosarcoma. Correct diagnosis through imaging studies and histopathological examination is mandatory to determine the appropriate course of treatment, as the prognosis differs from that of other malignant hemangioma tumors.

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Fractures of the femur require significant radiation exposure during operations using fluoroscopy (C-arm), posing a high risk of radiation exposure to the medical staff and patients. To address this concern, in this study, we investigated the efficacy of using two fluoroscopy machines simultaneously. We categorized 30 patients with femoral neck fracture (FNF) into single and double C-arm groups.

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Background: Traumatic brain injury (TBI) has been known to accelerate bone healing. Many cells and molecules have been investigated but the exact mechanism is still unknown. The neuroinflammatory state of TBI has been reported recently.

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Article Synopsis
  • - Subtle Lisfranc injuries (SLIs) are often hard to diagnose, with traditional weightbearing radiographs missing about 20% of cases; this study examines the use of CT scans as a more reliable diagnostic tool.
  • - The study looked at patients diagnosed with SLIs from 2014 to 2020, measuring specific distances on radiographs and CT scans to determine their effectiveness in surgical decision-making.
  • - Results showed that CT scans were more informative than traditional radiographs, and while surgical outcomes were similar between groups treated surgically and conservatively, CT provided reliable measurements for diagnosis.
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Introduction: Plantar fasciitis is one of the common foot complaints that is chronic and can induce dysfunction. Total contact insole (TCI) is simple but effective in treating plantar fasciitis. Despite its effect, the cost and long duration for production have been the major flaws.

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Article Synopsis
  • The wide-awake approach allows surgeons to optimally tension a transferred tendon during surgery, leading to better outcomes than traditional methods.
  • A study compared 29 patients, with one group receiving the wide-awake technique and another undergoing surgery under general anesthesia, assessing their recovery over the first year.
  • Results showed the wide-awake group had improved thumb motion and functional scores shortly after surgery, although grip and pinch strength were similar to the conventional group.
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The thenar flap is a well-described technique, but reports about its use in patients with multiple fingertip injuries are limited. This study aims to introduce a surgical technique of using an extended thenar flap for two adjacent fingertip amputations and to evaluate the clinical outcomes and related complications. From October 2013 to October 2016, 12 patients (24 fingers) underwent soft tissue reconstruction of two adjacent fingers with an extended thenar flap.

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Partial or complete absence of the posterior arch of the atlas is a well-documented anomaly but a relatively rare condition. This condition is usually asymptomatic so most are diagnosed incidentally. There have been a few documented cases of congenital defects of the posterior arch of the atlas combined with atlantoaxial subluxation.

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Background: While the incidence and prevalence of suprascapular neuropathy (SSN) remains largely unknown, the evaluation and treatment of SSN appears to be increasing. Despite multiple technique articles demonstrating nerve decompression, there has been no clinical evidence to support the efficacy of SSN decompression in the absence of rotator cuff disease.

Methods: Between October 2006 and February 2010, 27 patients underwent arthroscopic suprascapular nerve decompression at the suprascapular and/or spinoglenoid notch.

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Arthrofibrosis after shoulder surgery may be challenging to treat. Certain factors, including diabetes and history of keloid formation, predispose patients to the development of postoperative arthrofibrosis. Etiologies include rotator cuff repair, labral repair, capsulorrhaphy, shoulder arthroplasty, and proximal humerus fracture fixation.

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Rac is a protein involved in the various functions of macrophages (Mphi), including the production of reactive oxygen species (ROS), phagocytosis, chemotaxis and the secretion of cytokines (such as gamma-INF). This study tested the effects of nucleosides containing 8-oxoguanine(8-hydroxyguanine) such as 8-oxo-2'-guanosine (8-oxoG) or 8-oxo-2'-deoxyguanosine (8-oxodG), on Rac and the above-listed Rac-associated functions of Mphi using mouse peritoneal Mphi (MpMphi). It is reported that 8-oxodG was able to effectively inhibit Rac and the Rac-associated functions of MpMphi.

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Optical forces on a micro-bubble were computed using the Finite Difference Time Domain method. Non-paraxial Gaussian beam equation was used to represent the incident laser with high numerical aperture, common in optical tweezers. The electromagnetic field distribution around a micro-bubble was computed using FDTD method and the electromagnetic stress tensor on the surface of a micro-bubble was used to compute the optical forces.

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Displacement and inappropriate treatment of a proximal phalangeal neck fracture may result in malunion of the fracture with consequent loss of motion and gross deformity, especially in children. We performed a retrospective study of twenty-four patients who had undergone operative treatment for a proximal phalangeal neck fracture, with a mean follow-up evaluation of 14 months (range: 12-30 months). We analyzed the types of fractures, their causes, operative treatments, complications, and functional outcomes.

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