1.Comparison of Treatment Outcomes: Screw Fixation versus Suture-Button Fixation in Distal Tibiofibular Syndesmosis Diastasis Combined with Ankle Fractures
Baegyun KIM ; Bum Soo KIM ; Seong-Tae KIM ; Hyung min SUN
Journal of Korean Foot and Ankle Society 2025;29(1):27-33
Purpose:
This study compared the treatment outcomes between fixation using screws and suture buttons for addressing distal tibiofibular syndesmosis diastasis combined with ankle fractures.
Materials and Methods:
A retrospective study was conducted involving 20 patients with ankle fractures treated with screws and 21 patients treated with suture buttons for distal tibiofibular syndesmosis diastasis. The postoperative clinical outcomes were assessed using the American Orthopedic Foot and Ankle Society (AOFAS) score, while the radiological outcomes were determined by measuring the tibiofibular clear space, tibiofibular overlap, and medial clear space on the pre- and post-operative radiographs. In addition, factors such as the need for internal fixation removal surgery and the incidence of internal fixation damage were investigated.
Results:
One-year post-surgery, the average AOFAS score showed no significant difference between the screw and suture button surgery groups. Initially, measurements of the tibiofibular clear space, tibiofibular overlap, and medial clear space did not exhibit significant differences between the two groups. On the other hand, significant differences were observed one-year post-surgery. All patients in the screw surgery group underwent screw removal surgery. Within this group, two cases of screw breakage and one case of surgical wound infection were recorded.
Conclusion
When treating distal tibiofibular syndesmosis diastasis, the screw surgery group and the suture button surgery group showed similar clinical outcomes measured by AOFAS one year after surgery, but the suture button surgery group had better results in radiological evaluation and complication frequency.
3.Microplastics Accumulation Induces Kynurenine-Derived Neurotoxicity in Cerebral Organoids and Mouse Brain
Sung Bum PARK ; Jeong Hyeon JO ; Seong Soon KIM ; Won Hoon JUNG ; Myung-Ae BAE ; Byumseok KOH ; Ki Young KIM
Biomolecules & Therapeutics 2025;33(3):447-457
Microplastics (MP) are pervasive environmental pollutants with potential adverse effects on human health, particularly concerning neurotoxicity. This study investigates the accumulation and neurotoxic effects of MP in cerebral organoids and mouse brains. Utilizing in vitro cerebral organoids and in vivo mouse models, we examined the penetration of MP, revealing that smaller MP (50 nm) infiltrated deeper into the organoids compared to larger ones (100 nm). Exposure to 50 nm MP resulted in a significant reduction in organoid viability. Furthermore, total RNA sequencing indicated substantial alterations in neurotoxicity-related gene expression.In vivo, MP-treated mice exhibited notable DNA fragmentation in the hippocampus and cortex, alongside elevated levels of inflammatory markers and neurotoxic metabolites, such as kynurenine (KYN) and 3-hydroxykynurenine (3-HK). Our findings suggest that MP may promote neurotoxicity through the kynurenine pathway, leading to heightened levels of neurotoxic compounds like quinolinic acid. This research highlights the potential for MP to induce neuroinflammatory responses and disrupt normal brain function, underscoring the need for further investigation into the long-term effects of MP exposure on neurological health.
4.Comparison of Treatment Outcomes: Screw Fixation versus Suture-Button Fixation in Distal Tibiofibular Syndesmosis Diastasis Combined with Ankle Fractures
Baegyun KIM ; Bum Soo KIM ; Seong-Tae KIM ; Hyung min SUN
Journal of Korean Foot and Ankle Society 2025;29(1):27-33
Purpose:
This study compared the treatment outcomes between fixation using screws and suture buttons for addressing distal tibiofibular syndesmosis diastasis combined with ankle fractures.
Materials and Methods:
A retrospective study was conducted involving 20 patients with ankle fractures treated with screws and 21 patients treated with suture buttons for distal tibiofibular syndesmosis diastasis. The postoperative clinical outcomes were assessed using the American Orthopedic Foot and Ankle Society (AOFAS) score, while the radiological outcomes were determined by measuring the tibiofibular clear space, tibiofibular overlap, and medial clear space on the pre- and post-operative radiographs. In addition, factors such as the need for internal fixation removal surgery and the incidence of internal fixation damage were investigated.
Results:
One-year post-surgery, the average AOFAS score showed no significant difference between the screw and suture button surgery groups. Initially, measurements of the tibiofibular clear space, tibiofibular overlap, and medial clear space did not exhibit significant differences between the two groups. On the other hand, significant differences were observed one-year post-surgery. All patients in the screw surgery group underwent screw removal surgery. Within this group, two cases of screw breakage and one case of surgical wound infection were recorded.
Conclusion
When treating distal tibiofibular syndesmosis diastasis, the screw surgery group and the suture button surgery group showed similar clinical outcomes measured by AOFAS one year after surgery, but the suture button surgery group had better results in radiological evaluation and complication frequency.
6.Comparison of Treatment Outcomes: Screw Fixation versus Suture-Button Fixation in Distal Tibiofibular Syndesmosis Diastasis Combined with Ankle Fractures
Baegyun KIM ; Bum Soo KIM ; Seong-Tae KIM ; Hyung min SUN
Journal of Korean Foot and Ankle Society 2025;29(1):27-33
Purpose:
This study compared the treatment outcomes between fixation using screws and suture buttons for addressing distal tibiofibular syndesmosis diastasis combined with ankle fractures.
Materials and Methods:
A retrospective study was conducted involving 20 patients with ankle fractures treated with screws and 21 patients treated with suture buttons for distal tibiofibular syndesmosis diastasis. The postoperative clinical outcomes were assessed using the American Orthopedic Foot and Ankle Society (AOFAS) score, while the radiological outcomes were determined by measuring the tibiofibular clear space, tibiofibular overlap, and medial clear space on the pre- and post-operative radiographs. In addition, factors such as the need for internal fixation removal surgery and the incidence of internal fixation damage were investigated.
Results:
One-year post-surgery, the average AOFAS score showed no significant difference between the screw and suture button surgery groups. Initially, measurements of the tibiofibular clear space, tibiofibular overlap, and medial clear space did not exhibit significant differences between the two groups. On the other hand, significant differences were observed one-year post-surgery. All patients in the screw surgery group underwent screw removal surgery. Within this group, two cases of screw breakage and one case of surgical wound infection were recorded.
Conclusion
When treating distal tibiofibular syndesmosis diastasis, the screw surgery group and the suture button surgery group showed similar clinical outcomes measured by AOFAS one year after surgery, but the suture button surgery group had better results in radiological evaluation and complication frequency.
8.Comparison of Treatment Outcomes: Screw Fixation versus Suture-Button Fixation in Distal Tibiofibular Syndesmosis Diastasis Combined with Ankle Fractures
Baegyun KIM ; Bum Soo KIM ; Seong-Tae KIM ; Hyung min SUN
Journal of Korean Foot and Ankle Society 2025;29(1):27-33
Purpose:
This study compared the treatment outcomes between fixation using screws and suture buttons for addressing distal tibiofibular syndesmosis diastasis combined with ankle fractures.
Materials and Methods:
A retrospective study was conducted involving 20 patients with ankle fractures treated with screws and 21 patients treated with suture buttons for distal tibiofibular syndesmosis diastasis. The postoperative clinical outcomes were assessed using the American Orthopedic Foot and Ankle Society (AOFAS) score, while the radiological outcomes were determined by measuring the tibiofibular clear space, tibiofibular overlap, and medial clear space on the pre- and post-operative radiographs. In addition, factors such as the need for internal fixation removal surgery and the incidence of internal fixation damage were investigated.
Results:
One-year post-surgery, the average AOFAS score showed no significant difference between the screw and suture button surgery groups. Initially, measurements of the tibiofibular clear space, tibiofibular overlap, and medial clear space did not exhibit significant differences between the two groups. On the other hand, significant differences were observed one-year post-surgery. All patients in the screw surgery group underwent screw removal surgery. Within this group, two cases of screw breakage and one case of surgical wound infection were recorded.
Conclusion
When treating distal tibiofibular syndesmosis diastasis, the screw surgery group and the suture button surgery group showed similar clinical outcomes measured by AOFAS one year after surgery, but the suture button surgery group had better results in radiological evaluation and complication frequency.
10.Profiling of Anti-Signal-Recognition Particle Antibodies and Clinical Characteristics in South Korean Patients With Immune-Mediated Necrotizing Myopathy
Soo-Hyun KIM ; Yunjung CHOI ; Eun Kyoung OH ; Ichizo NISHINO ; Shigeaki SUZUKI ; Bum Chun SUH ; Ha Young SHIN ; Seung Woo KIM ; Byeol-A YOON ; Seong-il OH ; Yoo Hwan KIM ; Hyunjin KIM ; Young-Min LIM ; Seol-Hee BAEK ; Je-Young SHIN ; Hung Youl SEOK ; Seung-Ah LEE ; Young-Chul CHOI ; Hyung Jun PARK
Journal of Clinical Neurology 2025;21(1):31-39
Background:
and Purpose This study evaluated the diagnostic utility of an anti-signal-recognition particle 54 (anti-SRP54) antibody-based enzyme-linked immunosorbent assay (ELISA) as well as the clinical, serological, and pathological characteristics of patients with SRP immune-mediated necrotizing myopathy (IMNM).
Methods:
We evaluated 87 patients with idiopathic inflammatory myopathy and 107 healthy participants between January 2002 and December 2023. The sensitivity and specificity of the ELISA for anti-SRP54 antibodies were assessed, and the clinical profiles of patients with antiSRP54 antibodies were determined.
Results:
The ELISA for anti-SRP54 antibodies had a sensitivity and specificity of 88% and 99%, respectively, along with a test–retest reliability of 0.92 (p<0.001). The 32 patients diagnosed with anti-SRP IMNM using a line-blot immunoassay included 28 (88%) who tested positive for anti-SRP54 antibodies using the ELISA, comprising 12 (43%) males and 16 (57%) females whose median ages at symptom onset and diagnosis were 43.0 years and 43.5 years, respectively. Symptoms included proximal muscle weakness in all 28 (100%) patients, neck weakness in 9 (32%), myalgia in 15 (54%), dysphagia in 5 (18%), dyspnea in 4 (14%), dysarthria in 2 (7%), interstitial lung disease in 2 (7%), and myocarditis in 2 (7%). The median serum creatine kinase (CK) level was 7,261 U/L (interquartile range: 5,086–10,007 U/L), and the median anti-SRP54 antibody level was 2.0 U/mL (interquartile range: 1.0–5.6 U/mL). The serum CK level was significantly higher in patients with coexisting anti-Ro-52 antibodies.
Conclusions
This study has confirmed the reliability of the ELISA for anti-SRP54 antibodies and provided insights into the clinical, serological, and pathological characteristics of South Korean patients with anti-SRP IMNM.

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