1.Improvement of Early-stage Osteochondral Lesions of the Talus after Isolated Lateral Stabilizing Surgery in Patients with Chronic Lateral Ankle Instability
Sung Hyun HWANG ; Jun Hyeok SONG ; Yong Sik LEE
Journal of Korean Foot and Ankle Society 2025;29(4):151-157
Purpose:
Early-stage osteochondral lesions of the talus (OLT) are often accompanied by chronic lateral ankle instability (CLAI). This study evaluated the clinical and radiologic outcomes of isolated lateral ligament stabilization in CLAI patients with concomitant earlystage OLT.
Materials and Methods:
Patients who underwent lateral ligament stabilization for CLAI between 2017 and 2022 and had a minimum clinical follow-up of 2 years were reviewed retrospectively. Thirty-four patients with CLAI and concomitant OLT confirmed on preoperative magnetic resonance imaging (MRI) were included. The clinical outcomes were assessed using the American Orthopaedic Foot and Ankle Society (AOFAS) ankle–hindfoot score, the visual analog scale (VAS), and the Tegner activity score. Preoperative and 1-year postoperative MRI were performed to measure the size of the OLT and quantify bone marrow edema (BME).
Results:
The functional outcomes improved significantly after surgery: the AOFAS score increased from 65.7±11.1 to 91.1±6.8; the VAS pain score decreased from 6.2±1.6 to 1.4±1.1; the Tegner activity score improved from 2.9±1.2 to 5.6±1.0 (all p<0.001). Although the mean OLT size decreased slightly without statistical significance, the extent and signal intensity of BME were significantly lower on the postoperative MRI. The extent and signal intensity of BME were significantly lower on postoperative MRI in the sagittal and coronal planes (all p<0.05).
Conclusion
In patients with CLAI and early‑stage OLT, isolated lateral ligament stabilization resulted in significant clinical improvement with MRI evidence of reduced BME and no progression of the osteochondral lesion at the short-term follow-up. Mechanical restoration of ankle stability alone may be sufficient to maintain or improve early-stage OLTs without direct surgical intervention on the lesion.
2.Robotic-Assisted Spine Surgery: Role in Training the Next Generation of Spine Surgeons
Jun Seok LEE ; Dong Wuk SON ; Su Hun LEE ; Jong Hyeok LEE ; Young Ha KIM ; Sang Weon LEE ; Bu Kwang OH ; Soon Ki SUNG ; Geun Sung SONG ; Seong YI
Neurospine 2024;21(1):116-127
Objective:
This study aimed to assess the degree of interest in robot-assisted spine surgery (RASS) among residents and to investigate the learning curve for beginners performing robotic surgery.
Methods:
We conducted a survey to assess awareness and interest in RASS among young neurosurgery residents. Subsequently, we offered a hands-on training program using a dummy to educate one resident. After completing the program, the trained resident performed spinal fusion surgery with robotic assistance under the supervision of a mentor. The clinical outcomes and learning curve associated with robotic surgery were then analyzed.
Results:
Neurosurgical residents had limited opportunities to participate in spinal surgery during their training. Despite this, there was a significant interest in the emerging field of robotic surgery. A trained resident performed RASS under the supervision of a senior surgeon. A total of 166 screw insertions were attempted in 28 patients, with 2 screws failing due to skiving. According to the Gertzbein-Robbins classification, 85.54% of the screws were rated as grade A, 11.58% as grade B, 0.6% as grade C, and 1.2% as grade D. The clinical acceptance rate was approximately 96.99%, which is comparable to the results reported by senior experts and time per screw statistically significantly decreased as experience was gained.
Conclusion
RASS can be performed with high accuracy within a relatively short timeframe, if residents receive adequate training.
3.Effects of a 2-Week Kinect-Based Mixed-Reality Exercise Program on Prediabetes: A Pilot Trial during COVID-19
So Young AHN ; Si Woo LEE ; Hye Jung SHIN ; Won Jae LEE ; Jun Hyeok KIM ; Hyun-Jun KIM ; Wook SONG
Journal of Obesity & Metabolic Syndrome 2024;33(1):54-63
Background:
Pre-diabetes can develop into type 2 diabetes mellitus, but can prevented by regular exercise.However, the outcomes when combining unsupervised Kinect-based mixed-reality (KMR) exercise with continuous glucose monitoring (CGM) remain unclear. Therefore, this single-arm pilot trial examined changes in blood glucose (BG) concentrations over 672 hours (4 weeks), including a 2-week period of KMR exercise and CGM in individuals with pre-diabetes.
Methods:
This was a pre-and post-treatment case-control study with nine participants. General questionnaires were administered and body composition, fasting BG concentrations, and 2-hour oral glucose tolerance test (2-OGTT) results were measured pre-and post-treatment. Weekly average glucose concentrations, hyperglycemia rate, hypoglycemia rate, average glucose concentration over time, amount of physical activity, amount of food intake, and pre- and postprandial BG (immediately and 30, 60, 90, and 120 minutes after lunch) were measured over 4 weeks (pre-test, exercise, and post -test weeks). Glucose concentrations were measured before exercising, between sets, and 30 and 60 minutes after exercise during the 2 weeks of unsupervised exercise (3 days/week).
Results:
In all participants, body mass index (27.16±2.92 kg/m²), fasting BG (108.00±7.19 mg/dL), 2-OGTT (162.56±18.12 mg/dL), hyperglycemia rate (P= 0.040), and 90-minute postprandial BG (P= 0.035) were significantly reduced during the 2 exercise weeks, and the 2-OGTT result (P= 0.044) and diastolic blood pressure (DBP) (P= 0.046) were significantly reduced at the post- test as compared with the pre-test.
Conclusion
This study found that 2 weeks of unsupervised KMR exercise reduced 2-OGTT, DBP, hyperglycemia rate, and 90-minute postprandial BG concentration. We believed this effect could be identified more clearly in studies involving a larger number of participants and longer durations of exercise.
4.Robotic-Assisted Spine Surgery: Role in Training the Next Generation of Spine Surgeons
Jun Seok LEE ; Dong Wuk SON ; Su Hun LEE ; Jong Hyeok LEE ; Young Ha KIM ; Sang Weon LEE ; Bu Kwang OH ; Soon Ki SUNG ; Geun Sung SONG ; Seong YI
Neurospine 2024;21(1):116-127
Objective:
This study aimed to assess the degree of interest in robot-assisted spine surgery (RASS) among residents and to investigate the learning curve for beginners performing robotic surgery.
Methods:
We conducted a survey to assess awareness and interest in RASS among young neurosurgery residents. Subsequently, we offered a hands-on training program using a dummy to educate one resident. After completing the program, the trained resident performed spinal fusion surgery with robotic assistance under the supervision of a mentor. The clinical outcomes and learning curve associated with robotic surgery were then analyzed.
Results:
Neurosurgical residents had limited opportunities to participate in spinal surgery during their training. Despite this, there was a significant interest in the emerging field of robotic surgery. A trained resident performed RASS under the supervision of a senior surgeon. A total of 166 screw insertions were attempted in 28 patients, with 2 screws failing due to skiving. According to the Gertzbein-Robbins classification, 85.54% of the screws were rated as grade A, 11.58% as grade B, 0.6% as grade C, and 1.2% as grade D. The clinical acceptance rate was approximately 96.99%, which is comparable to the results reported by senior experts and time per screw statistically significantly decreased as experience was gained.
Conclusion
RASS can be performed with high accuracy within a relatively short timeframe, if residents receive adequate training.
5.Robotic-Assisted Spine Surgery: Role in Training the Next Generation of Spine Surgeons
Jun Seok LEE ; Dong Wuk SON ; Su Hun LEE ; Jong Hyeok LEE ; Young Ha KIM ; Sang Weon LEE ; Bu Kwang OH ; Soon Ki SUNG ; Geun Sung SONG ; Seong YI
Neurospine 2024;21(1):116-127
Objective:
This study aimed to assess the degree of interest in robot-assisted spine surgery (RASS) among residents and to investigate the learning curve for beginners performing robotic surgery.
Methods:
We conducted a survey to assess awareness and interest in RASS among young neurosurgery residents. Subsequently, we offered a hands-on training program using a dummy to educate one resident. After completing the program, the trained resident performed spinal fusion surgery with robotic assistance under the supervision of a mentor. The clinical outcomes and learning curve associated with robotic surgery were then analyzed.
Results:
Neurosurgical residents had limited opportunities to participate in spinal surgery during their training. Despite this, there was a significant interest in the emerging field of robotic surgery. A trained resident performed RASS under the supervision of a senior surgeon. A total of 166 screw insertions were attempted in 28 patients, with 2 screws failing due to skiving. According to the Gertzbein-Robbins classification, 85.54% of the screws were rated as grade A, 11.58% as grade B, 0.6% as grade C, and 1.2% as grade D. The clinical acceptance rate was approximately 96.99%, which is comparable to the results reported by senior experts and time per screw statistically significantly decreased as experience was gained.
Conclusion
RASS can be performed with high accuracy within a relatively short timeframe, if residents receive adequate training.
6.Effects of a 2-Week Kinect-Based Mixed-Reality Exercise Program on Prediabetes: A Pilot Trial during COVID-19
So Young AHN ; Si Woo LEE ; Hye Jung SHIN ; Won Jae LEE ; Jun Hyeok KIM ; Hyun-Jun KIM ; Wook SONG
Journal of Obesity & Metabolic Syndrome 2024;33(1):54-63
Background:
Pre-diabetes can develop into type 2 diabetes mellitus, but can prevented by regular exercise.However, the outcomes when combining unsupervised Kinect-based mixed-reality (KMR) exercise with continuous glucose monitoring (CGM) remain unclear. Therefore, this single-arm pilot trial examined changes in blood glucose (BG) concentrations over 672 hours (4 weeks), including a 2-week period of KMR exercise and CGM in individuals with pre-diabetes.
Methods:
This was a pre-and post-treatment case-control study with nine participants. General questionnaires were administered and body composition, fasting BG concentrations, and 2-hour oral glucose tolerance test (2-OGTT) results were measured pre-and post-treatment. Weekly average glucose concentrations, hyperglycemia rate, hypoglycemia rate, average glucose concentration over time, amount of physical activity, amount of food intake, and pre- and postprandial BG (immediately and 30, 60, 90, and 120 minutes after lunch) were measured over 4 weeks (pre-test, exercise, and post -test weeks). Glucose concentrations were measured before exercising, between sets, and 30 and 60 minutes after exercise during the 2 weeks of unsupervised exercise (3 days/week).
Results:
In all participants, body mass index (27.16±2.92 kg/m²), fasting BG (108.00±7.19 mg/dL), 2-OGTT (162.56±18.12 mg/dL), hyperglycemia rate (P= 0.040), and 90-minute postprandial BG (P= 0.035) were significantly reduced during the 2 exercise weeks, and the 2-OGTT result (P= 0.044) and diastolic blood pressure (DBP) (P= 0.046) were significantly reduced at the post- test as compared with the pre-test.
Conclusion
This study found that 2 weeks of unsupervised KMR exercise reduced 2-OGTT, DBP, hyperglycemia rate, and 90-minute postprandial BG concentration. We believed this effect could be identified more clearly in studies involving a larger number of participants and longer durations of exercise.
7.Robotic-Assisted Spine Surgery: Role in Training the Next Generation of Spine Surgeons
Jun Seok LEE ; Dong Wuk SON ; Su Hun LEE ; Jong Hyeok LEE ; Young Ha KIM ; Sang Weon LEE ; Bu Kwang OH ; Soon Ki SUNG ; Geun Sung SONG ; Seong YI
Neurospine 2024;21(1):116-127
Objective:
This study aimed to assess the degree of interest in robot-assisted spine surgery (RASS) among residents and to investigate the learning curve for beginners performing robotic surgery.
Methods:
We conducted a survey to assess awareness and interest in RASS among young neurosurgery residents. Subsequently, we offered a hands-on training program using a dummy to educate one resident. After completing the program, the trained resident performed spinal fusion surgery with robotic assistance under the supervision of a mentor. The clinical outcomes and learning curve associated with robotic surgery were then analyzed.
Results:
Neurosurgical residents had limited opportunities to participate in spinal surgery during their training. Despite this, there was a significant interest in the emerging field of robotic surgery. A trained resident performed RASS under the supervision of a senior surgeon. A total of 166 screw insertions were attempted in 28 patients, with 2 screws failing due to skiving. According to the Gertzbein-Robbins classification, 85.54% of the screws were rated as grade A, 11.58% as grade B, 0.6% as grade C, and 1.2% as grade D. The clinical acceptance rate was approximately 96.99%, which is comparable to the results reported by senior experts and time per screw statistically significantly decreased as experience was gained.
Conclusion
RASS can be performed with high accuracy within a relatively short timeframe, if residents receive adequate training.
8.Effects of a 2-Week Kinect-Based Mixed-Reality Exercise Program on Prediabetes: A Pilot Trial during COVID-19
So Young AHN ; Si Woo LEE ; Hye Jung SHIN ; Won Jae LEE ; Jun Hyeok KIM ; Hyun-Jun KIM ; Wook SONG
Journal of Obesity & Metabolic Syndrome 2024;33(1):54-63
Background:
Pre-diabetes can develop into type 2 diabetes mellitus, but can prevented by regular exercise.However, the outcomes when combining unsupervised Kinect-based mixed-reality (KMR) exercise with continuous glucose monitoring (CGM) remain unclear. Therefore, this single-arm pilot trial examined changes in blood glucose (BG) concentrations over 672 hours (4 weeks), including a 2-week period of KMR exercise and CGM in individuals with pre-diabetes.
Methods:
This was a pre-and post-treatment case-control study with nine participants. General questionnaires were administered and body composition, fasting BG concentrations, and 2-hour oral glucose tolerance test (2-OGTT) results were measured pre-and post-treatment. Weekly average glucose concentrations, hyperglycemia rate, hypoglycemia rate, average glucose concentration over time, amount of physical activity, amount of food intake, and pre- and postprandial BG (immediately and 30, 60, 90, and 120 minutes after lunch) were measured over 4 weeks (pre-test, exercise, and post -test weeks). Glucose concentrations were measured before exercising, between sets, and 30 and 60 minutes after exercise during the 2 weeks of unsupervised exercise (3 days/week).
Results:
In all participants, body mass index (27.16±2.92 kg/m²), fasting BG (108.00±7.19 mg/dL), 2-OGTT (162.56±18.12 mg/dL), hyperglycemia rate (P= 0.040), and 90-minute postprandial BG (P= 0.035) were significantly reduced during the 2 exercise weeks, and the 2-OGTT result (P= 0.044) and diastolic blood pressure (DBP) (P= 0.046) were significantly reduced at the post- test as compared with the pre-test.
Conclusion
This study found that 2 weeks of unsupervised KMR exercise reduced 2-OGTT, DBP, hyperglycemia rate, and 90-minute postprandial BG concentration. We believed this effect could be identified more clearly in studies involving a larger number of participants and longer durations of exercise.
9.Robotic-Assisted Spine Surgery: Role in Training the Next Generation of Spine Surgeons
Jun Seok LEE ; Dong Wuk SON ; Su Hun LEE ; Jong Hyeok LEE ; Young Ha KIM ; Sang Weon LEE ; Bu Kwang OH ; Soon Ki SUNG ; Geun Sung SONG ; Seong YI
Neurospine 2024;21(1):116-127
Objective:
This study aimed to assess the degree of interest in robot-assisted spine surgery (RASS) among residents and to investigate the learning curve for beginners performing robotic surgery.
Methods:
We conducted a survey to assess awareness and interest in RASS among young neurosurgery residents. Subsequently, we offered a hands-on training program using a dummy to educate one resident. After completing the program, the trained resident performed spinal fusion surgery with robotic assistance under the supervision of a mentor. The clinical outcomes and learning curve associated with robotic surgery were then analyzed.
Results:
Neurosurgical residents had limited opportunities to participate in spinal surgery during their training. Despite this, there was a significant interest in the emerging field of robotic surgery. A trained resident performed RASS under the supervision of a senior surgeon. A total of 166 screw insertions were attempted in 28 patients, with 2 screws failing due to skiving. According to the Gertzbein-Robbins classification, 85.54% of the screws were rated as grade A, 11.58% as grade B, 0.6% as grade C, and 1.2% as grade D. The clinical acceptance rate was approximately 96.99%, which is comparable to the results reported by senior experts and time per screw statistically significantly decreased as experience was gained.
Conclusion
RASS can be performed with high accuracy within a relatively short timeframe, if residents receive adequate training.
10.Evaluating the Validity and Reliability of the Korean Version of the Scales for Outcomes in Parkinson’s Disease–Cognition
Jinse PARK ; Eungseok OH ; Seong-Beom KOH ; In-Uk SONG ; Tae-Beom AHN ; Sang Jin KIM ; Sang-Myung CHEON ; Yoon-Joong KIM ; Jin Whan CHO ; Hyeo-Il MA ; Mee Young PARK ; Jong Sam BAIK ; Phil Hyu LEE ; Sun Ju CHUNG ; Jong-Min KIM ; Han-Joon KIM ; Young-Hee SUNG ; Do Young KWON ; Jae-Hyeok LEE ; Jee-Young LEE ; Ji Seon KIM ; Ji Young YUN ; Hee Jin KIM ; Jin Yong HONG ; Mi-Jung KIM ; Jinyoung YOUN ; Hui-Jun YANG ; Won Tae YOON ; Sooyeoun YOU ; Kyum-Yil KWON ; Su-Yun LEE ; Younsoo KIM ; Hee-Tae KIM ; Joong-Seok KIM ; Ji-Young KIM
Journal of Movement Disorders 2024;17(3):328-332
Objective:
The Scales for Outcomes in Parkinson’s Disease–Cognition (SCOPA-Cog) was developed to assess cognition in patients with Parkinson’s disease (PD). In this study, we aimed to evaluate the validity and reliability of the Korean version of the SCOPACog (K-SCOPA-Cog).
Methods:
We enrolled 129 PD patients with movement disorders from 31 clinics in South Korea. The original version of the SCOPA-Cog was translated into Korean using the translation-retranslation method. The test–retest method with an intraclass correlation coefficient (ICC) and Cronbach’s alpha coefficient were used to assess reliability. Spearman’s rank correlation analysis with the Montreal Cognitive Assessment-Korean version (MOCA-K) and the Korean Mini-Mental State Examination (K-MMSE) were used to assess concurrent validity.
Results:
The Cronbach’s alpha coefficient was 0.797, and the ICC was 0.887. Spearman’s rank correlation analysis revealed a significant correlation with the K-MMSE and MOCA-K scores (r = 0.546 and r = 0.683, respectively).
Conclusion
Our results demonstrate that the K-SCOPA-Cog has good reliability and validity.

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