1.Transforaminal Endoscopic Thoracic Discectomy Is More Cost-Effective Than Microdiscectomy for Symptomatic Disc Herniations
Junseok BAE ; Pratyush SHAHI ; Sang-Ho LEE ; Han-Joong KEUM ; Ju-Wan SEOK ; Yong-Soo CHOI ; Jin-Sung KIM
Neurospine 2025;22(1):118-127
Objective:
To analyze costs and cost-effectiveness of transforaminal endoscopic thoracic discectomy (TETD) for the treatment of symptomatic thoracic disc herniation (TDH) and compare it with open microdiscectomy (MD).
Methods:
This retrospective cohort study included patients who underwent TETD or MD for symptomatic TDH and had a minimum follow-up of 1 year. Cost analysis included direct costs (primary and secondary hospital costs), indirect costs (lost wages due to work absence), total costs (direct + indirect), and cost-effectiveness (cost per quality-adjusted life year [QALY] and incremental cost-effectiveness ratio [ICER]). Clinical outcomes included patient-reported outcome measures (Oswestry Disability Index [ODI], 36-item Short Form health survey [SF-36]), QALY gained, and reoperation and readmission rates at 1 year. TETD and MD groups were compared for outcome measures.
Results:
A total of 111 patients (57 TETD, 54 MD) were included. The direct ($6,270 TETD vs. $7,410 MD, p < 0.01), indirect costs ($1,250 TETD vs. $1,450 MD, p < 0.01), total costs ($7,520 TETD vs. $8,860 MD, p < 0.01), and cost per QALY ($31,333 TETD vs. $44,300 MD, p < 0.01) were significantly lower for TETD compared to MD. ICER of TETD was found to be -$33,500. At 1 year, TETD group showed significantly greater improvement in ODI (46% vs. 36%, p < 0.01) and SF-36 (64% vs. 53%, p < 0.01) and significantly greater QALY gained (0.24 vs. 0.2, p < 0.01) compared to MD group. No significant difference was found in reoperation and readmission rates.
Conclusion
TETD demonstrated significantly better clinical outcomes, lower overall costs, and better cost-effectiveness than MD in appropriately selected patients of symptomatic TDH.
2.Transforaminal Endoscopic Thoracic Discectomy Is More Cost-Effective Than Microdiscectomy for Symptomatic Disc Herniations
Junseok BAE ; Pratyush SHAHI ; Sang-Ho LEE ; Han-Joong KEUM ; Ju-Wan SEOK ; Yong-Soo CHOI ; Jin-Sung KIM
Neurospine 2025;22(1):118-127
Objective:
To analyze costs and cost-effectiveness of transforaminal endoscopic thoracic discectomy (TETD) for the treatment of symptomatic thoracic disc herniation (TDH) and compare it with open microdiscectomy (MD).
Methods:
This retrospective cohort study included patients who underwent TETD or MD for symptomatic TDH and had a minimum follow-up of 1 year. Cost analysis included direct costs (primary and secondary hospital costs), indirect costs (lost wages due to work absence), total costs (direct + indirect), and cost-effectiveness (cost per quality-adjusted life year [QALY] and incremental cost-effectiveness ratio [ICER]). Clinical outcomes included patient-reported outcome measures (Oswestry Disability Index [ODI], 36-item Short Form health survey [SF-36]), QALY gained, and reoperation and readmission rates at 1 year. TETD and MD groups were compared for outcome measures.
Results:
A total of 111 patients (57 TETD, 54 MD) were included. The direct ($6,270 TETD vs. $7,410 MD, p < 0.01), indirect costs ($1,250 TETD vs. $1,450 MD, p < 0.01), total costs ($7,520 TETD vs. $8,860 MD, p < 0.01), and cost per QALY ($31,333 TETD vs. $44,300 MD, p < 0.01) were significantly lower for TETD compared to MD. ICER of TETD was found to be -$33,500. At 1 year, TETD group showed significantly greater improvement in ODI (46% vs. 36%, p < 0.01) and SF-36 (64% vs. 53%, p < 0.01) and significantly greater QALY gained (0.24 vs. 0.2, p < 0.01) compared to MD group. No significant difference was found in reoperation and readmission rates.
Conclusion
TETD demonstrated significantly better clinical outcomes, lower overall costs, and better cost-effectiveness than MD in appropriately selected patients of symptomatic TDH.
3.Transforaminal Endoscopic Thoracic Discectomy Is More Cost-Effective Than Microdiscectomy for Symptomatic Disc Herniations
Junseok BAE ; Pratyush SHAHI ; Sang-Ho LEE ; Han-Joong KEUM ; Ju-Wan SEOK ; Yong-Soo CHOI ; Jin-Sung KIM
Neurospine 2025;22(1):118-127
Objective:
To analyze costs and cost-effectiveness of transforaminal endoscopic thoracic discectomy (TETD) for the treatment of symptomatic thoracic disc herniation (TDH) and compare it with open microdiscectomy (MD).
Methods:
This retrospective cohort study included patients who underwent TETD or MD for symptomatic TDH and had a minimum follow-up of 1 year. Cost analysis included direct costs (primary and secondary hospital costs), indirect costs (lost wages due to work absence), total costs (direct + indirect), and cost-effectiveness (cost per quality-adjusted life year [QALY] and incremental cost-effectiveness ratio [ICER]). Clinical outcomes included patient-reported outcome measures (Oswestry Disability Index [ODI], 36-item Short Form health survey [SF-36]), QALY gained, and reoperation and readmission rates at 1 year. TETD and MD groups were compared for outcome measures.
Results:
A total of 111 patients (57 TETD, 54 MD) were included. The direct ($6,270 TETD vs. $7,410 MD, p < 0.01), indirect costs ($1,250 TETD vs. $1,450 MD, p < 0.01), total costs ($7,520 TETD vs. $8,860 MD, p < 0.01), and cost per QALY ($31,333 TETD vs. $44,300 MD, p < 0.01) were significantly lower for TETD compared to MD. ICER of TETD was found to be -$33,500. At 1 year, TETD group showed significantly greater improvement in ODI (46% vs. 36%, p < 0.01) and SF-36 (64% vs. 53%, p < 0.01) and significantly greater QALY gained (0.24 vs. 0.2, p < 0.01) compared to MD group. No significant difference was found in reoperation and readmission rates.
Conclusion
TETD demonstrated significantly better clinical outcomes, lower overall costs, and better cost-effectiveness than MD in appropriately selected patients of symptomatic TDH.
4.Transforaminal Endoscopic Thoracic Discectomy Is More Cost-Effective Than Microdiscectomy for Symptomatic Disc Herniations
Junseok BAE ; Pratyush SHAHI ; Sang-Ho LEE ; Han-Joong KEUM ; Ju-Wan SEOK ; Yong-Soo CHOI ; Jin-Sung KIM
Neurospine 2025;22(1):118-127
Objective:
To analyze costs and cost-effectiveness of transforaminal endoscopic thoracic discectomy (TETD) for the treatment of symptomatic thoracic disc herniation (TDH) and compare it with open microdiscectomy (MD).
Methods:
This retrospective cohort study included patients who underwent TETD or MD for symptomatic TDH and had a minimum follow-up of 1 year. Cost analysis included direct costs (primary and secondary hospital costs), indirect costs (lost wages due to work absence), total costs (direct + indirect), and cost-effectiveness (cost per quality-adjusted life year [QALY] and incremental cost-effectiveness ratio [ICER]). Clinical outcomes included patient-reported outcome measures (Oswestry Disability Index [ODI], 36-item Short Form health survey [SF-36]), QALY gained, and reoperation and readmission rates at 1 year. TETD and MD groups were compared for outcome measures.
Results:
A total of 111 patients (57 TETD, 54 MD) were included. The direct ($6,270 TETD vs. $7,410 MD, p < 0.01), indirect costs ($1,250 TETD vs. $1,450 MD, p < 0.01), total costs ($7,520 TETD vs. $8,860 MD, p < 0.01), and cost per QALY ($31,333 TETD vs. $44,300 MD, p < 0.01) were significantly lower for TETD compared to MD. ICER of TETD was found to be -$33,500. At 1 year, TETD group showed significantly greater improvement in ODI (46% vs. 36%, p < 0.01) and SF-36 (64% vs. 53%, p < 0.01) and significantly greater QALY gained (0.24 vs. 0.2, p < 0.01) compared to MD group. No significant difference was found in reoperation and readmission rates.
Conclusion
TETD demonstrated significantly better clinical outcomes, lower overall costs, and better cost-effectiveness than MD in appropriately selected patients of symptomatic TDH.
5.Transforaminal Endoscopic Thoracic Discectomy Is More Cost-Effective Than Microdiscectomy for Symptomatic Disc Herniations
Junseok BAE ; Pratyush SHAHI ; Sang-Ho LEE ; Han-Joong KEUM ; Ju-Wan SEOK ; Yong-Soo CHOI ; Jin-Sung KIM
Neurospine 2025;22(1):118-127
Objective:
To analyze costs and cost-effectiveness of transforaminal endoscopic thoracic discectomy (TETD) for the treatment of symptomatic thoracic disc herniation (TDH) and compare it with open microdiscectomy (MD).
Methods:
This retrospective cohort study included patients who underwent TETD or MD for symptomatic TDH and had a minimum follow-up of 1 year. Cost analysis included direct costs (primary and secondary hospital costs), indirect costs (lost wages due to work absence), total costs (direct + indirect), and cost-effectiveness (cost per quality-adjusted life year [QALY] and incremental cost-effectiveness ratio [ICER]). Clinical outcomes included patient-reported outcome measures (Oswestry Disability Index [ODI], 36-item Short Form health survey [SF-36]), QALY gained, and reoperation and readmission rates at 1 year. TETD and MD groups were compared for outcome measures.
Results:
A total of 111 patients (57 TETD, 54 MD) were included. The direct ($6,270 TETD vs. $7,410 MD, p < 0.01), indirect costs ($1,250 TETD vs. $1,450 MD, p < 0.01), total costs ($7,520 TETD vs. $8,860 MD, p < 0.01), and cost per QALY ($31,333 TETD vs. $44,300 MD, p < 0.01) were significantly lower for TETD compared to MD. ICER of TETD was found to be -$33,500. At 1 year, TETD group showed significantly greater improvement in ODI (46% vs. 36%, p < 0.01) and SF-36 (64% vs. 53%, p < 0.01) and significantly greater QALY gained (0.24 vs. 0.2, p < 0.01) compared to MD group. No significant difference was found in reoperation and readmission rates.
Conclusion
TETD demonstrated significantly better clinical outcomes, lower overall costs, and better cost-effectiveness than MD in appropriately selected patients of symptomatic TDH.
6.The Transaxillary Approach as a Direct Route in the Management of Upper Thoracic Spine Pathology: A Technical Note with Case Series
Syed IFTHEKAR ; Ju-Wan SEUK ; Ui Dong HWANG ; Hyung Chang LEE ; Sang-Ho LEE ; Junseok BAE
Asian Spine Journal 2024;18(2):265-273
This retrospective case series of prospective data aims to describe the transaxillary approach for the treatment of upper thoracic spine pathology. Various surgical techniques and approaches have been reported across the literature to address upper thoracic spine pathology, including the cervicothoracic approach, anterior transsternal approach, posterolateral approach, supraclavicular approach, and lateral parascapular approaches. These techniques are invasive. A minimally invasive, less morbid, and direct access approach to the pathology of the upper thoracic spine has not been reported in the literature. Patients with pathology affecting the first thoracic vertebra up to the sixth thoracic vertebra were classified into the upper thoracic spine group. Patients with pathology below the sixth thoracic vertebra were excluded. Patients not having a minimum follow-up of 12 months were also excluded. The study analyzed 18 patients. The mean preoperative modified Japanese Orthopedic Association score was 7.2±1.44, which improved to 10.16±1.2 (p<0.05). The majority (14/18) of the patients had an excellent outcome. Three patients had good outcomes, and one patient had a fair outcome. Five cases of intraoperative dural leak were recorded, and one patient had postoperative neurological deficit. The transaxillary approach is a safe, viable, muscle-sparing, and minimally invasive approach for ventral pathologies of the upper thoracic spine.
7.Comparative Analysis of ABM/P-15, Bone Morphogenic Protein and Demineralized Bone Matrix after Instrumented Lumbar Interbody Fusion
Ashwin SATHE ; Sang-Ho LEE ; Shin-Jae KIM ; Sang Soo EUN ; Yong Soo CHOI ; Shih-min LEE ; Ju-Wan SEUK ; Yoon Sun LEE ; Sang-Ha SHIN ; Junseok BAE
Journal of Korean Neurosurgical Society 2022;65(6):825-833
Objective:
: ABM/P-15 (anorganic bone matrix/15-amino acid peptide fragment) is a commercially available synthetically manufactured P-15 collagen peptide fragment, that is adsorbed on ABM. This study was done to investigate the efficacy of ABM/ P-15 in achieving fusion in the lumbar spine and comparing it with that of recombinant bone morphogenic protein-2 (rhBMP-2) and demineralized bone matrix (DBM).
Methods:
: A retrospective observational study of prospectively collected data of 140 patients who underwent lumbar spinal fusion surgeries in a single specialty spine hospital between 2016 and 2020, with a minimum 6-month follow-up was conducted. Based on the material used for the augmentation of the bone graft at the fusion site, the patients were divided into three categories namely ABM/P-15, rhBMP-2, and DBM group.
Results:
: ABM/P-15, rhBMP-2, and DBM were used in 46, 44, and 50 patients, respectively. Patient characteristics like age, gender, bone mineral density, smoking history, and presence of diabetes mellitus were comparable amongst the three groups. Average follow-up was 16.0±5.2, 17.9±9.8, and 26.2±14.9 months, respectively in ABM/P-15, rhBMP-2, and DBM groups. The fusion was achieved in 97.9%, 93.2%, and 98% patients while the average time-to-union was 4.05±2.01, 10±4.28, and 9.44±3.49 months (p<0.001), respectively for ABM/P-15, rhBMP-2, and DBM groups. The average pre-operative Visual analogue scale score was 6.93±2.42, 7.14±1.97, 7.01±2.14 (p=0.900) for ABM/P-15, rhBMP-2 and DBM groups, respectively, which reduced to 1.02±0.80, 1.21±0.96, and 0.54±0.70 (p=0.112), respectively at the last follow up. Pre-operative Oswestry disability index scores were 52.7±18.02, 55.4±16.8, and 53.56±19.6 (p=0.751) in ABM/P-15, rhBMP-2, and DBM groups, which post-operatively reduced to 33.77±15.52, 39.42±16.47, and 38.3±15.89 (p=0.412) and further to 15.74±8.3, 17.41±10.45, and 16.76±9.81 (p=0.603), respectively at the last follow-up.
Conclusion
: ABM/P-15 appears to achieve union significantly earlier than rhBMP-2 and DBM in lumbar spinal fusion cases while maintaining a comparable clinical and complication profile.
8.Brown-Séquard Syndrome Caused by Acute Traumatic Cervical Disc Herniation
Shin Jae KIM ; Sang Ho LEE ; Junseok BAE ; Sang Ha SHIN
Korean Journal of Neurotrauma 2019;15(2):204-208
Brown-Séquard syndrome (BSS) is an incomplete spinal cord injury caused by damage to one-half of the spinal cord. Most cases of BSS result from penetrating trauma or tumors, and acute cervical disc herniation is a relatively rare cause of BSS. In this case, a 34-year-old man with a sudden onset posterior neck pain and left side motor weakness was admitted to the local spine hospital. Pain and temperature sensation of pain was decreased below the right C4 dermatome. The left arm and leg motor grade was 0. Magnetic resonance imaging (MRI) showed a huge trans-ligamentous herniated disc rupture from the center to the left at the level of C3–4, and anterior cervical discectomy and fusion were performed. After emergency surgery, left arm and leg motor grade recovered to 2, and normal voiding function returned. MRI verified complete removal of the cervical herniated disc. This case describes the approach to rapid diagnosis in a patient with characteristic clinical symptoms of BSS and radiological findings of a herniated cervical disc. Rapid and accurate diagnosis and immediate decompressive surgery increased the possibility of a good surgical outcome, even if the neurologic deficits are grave at the time of admission.
Adult
;
Arm
;
Brown-Sequard Syndrome
;
Diagnosis
;
Diskectomy
;
Emergencies
;
Humans
;
Intervertebral Disc Displacement
;
Leg
;
Magnetic Resonance Imaging
;
Neck Pain
;
Neurologic Manifestations
;
Rupture
;
Sensation
;
Spinal Cord
;
Spinal Cord Injuries
;
Spine
9.Characteristics of the bicycle driver accident and factors related to the hospital admission: a multi-center retrospective study between 2011 to 2016
Yong Bae SHIN ; Joon Min PARK ; Kyung Hwan KIM ; Junseok PARK ; Hyunjong KIM ; Dong Wun SHIN ; Hoon KIM ; Jung Eon KIM ; Woochan JEON
Journal of the Korean Society of Emergency Medicine 2019;30(6):569-576
OBJECTIVE:
This study aimed to identify the characteristics of bicycle driver accidents, and investigate the factors related to the admission.
METHODS:
Adult patients (≥20 years old), who visited the emergency department (ED) after a bicycle driver accident registered in the Korean ED-based Injury In-Depth Surveillance (2011–2016) database, were included. The demographic characteristics, accident-related factors, and patients'disposition after the ED treatment were collected. All included cases were categorized into two groups according to the disposition: discharge versus admission. The characteristics of the two groups were compared, and the factors associated with admission were investigated.
RESULTS:
Among 25,070 ED visits, admissions were required in 5,963 patients (23.8%). The most frequent age group was the twenties (22.0%), and there were more males (74.7%) than females. Accidents occurred most in the summer (34.4%), and non-bicycle roads (73.5%) were the most common places. The most frequently injured body part was the headeck (43.0%), followed by the upper extremities (21.5%). The odds for admission were lower in females than males (odds ratio [OR], 0.87; 95% confidence interval [CI], 0.78–0.96). The odds for admission were higher in the age group over 40 years than in their twenties. Non-bicycle roads had higher odds for admission than bicycle roads (OR, 1.60; 95% CI, 1.40–1.83). Torso (OR, 2.17; 95% CI, 1.92–2.47), upper extremities (OR, 1.20; 95% CI, 1.07–1.35), and lower extremities (OR, 1.48; 95% CI, 1.31–1.66) had higher odds for admission than the headeck.
CONCLUSION
Male sex, old age group, accidents on non-bicycle roads, and torso/extremities injuries were associated with the admission in bicycle driver accidents.
10.Playground Equipment Related Injuries in Preschool-Aged Children: Emergency Department-based Injury In-depth Surveillance.
Sohyun BAE ; Ji Sook LEE ; Kyung Hwan KIM ; Junseok PARK ; Dong Wun SHIN ; Hyunjong KIM ; Joon Min PARK ; Hoon KIM ; Woochan JEON
Journal of Korean Medical Science 2017;32(3):534-541
In this study, we investigated playground equipment related injuries in preschool-aged children. This was a retrospective observational study using Emergency Department based Injury In-depth Surveillance, (2011–2014). We included the preschool-aged children with playground equipment related injuries. We surveyed the mechanism and incidence of injuries, and estimated the odds ratio (OR) of traumatic brain injury (TBI) and upper/lower extremities fracture. There were 6,110 patients, mean age was 4.14 ± 1.95 years old. Slide and swing related injuries were 2,475 (40.5%) and 1,102 (18.0%). Fall down (48.5%) was the most common mechanism. The OR of TBI in children 0–2 years old was 1.88 times higher than children 3–7 years old, and in swing was 4.72 (OR, 4.72; 95% confidence interval [CI], 2.37–9.40) times higher than seesaw. The OR of upper extremity fracture in children 3–7 years old was 3.07 times higher than children 0–2 years old, and in climbing was 2.03 (OR, 2.03; 95% CI, 1.63–2.52) times higher than swing. The OR of lower extremity fractures in horizontal bars, tightropes, and trampolines was 2.95 (OR, 2.95; 95% CI, 1.55–5.61) times higher than swing. The most common mechanism and playground equipment were fall down and slide. TBI was associated to younger children (0–2 years old) and swing. Fracture of upper extremities was associated to older children (3–7 years old) and climbing. Fracture of lower extremities was associated to others such as horizontal bars, tightropes, and trampolines.
Brain Injuries
;
Child*
;
Child, Preschool
;
Emergencies*
;
Emergency Service, Hospital
;
Extremities
;
Fractures, Bone
;
Humans
;
Incidence
;
Lower Extremity
;
Observational Study
;
Odds Ratio
;
Play and Playthings
;
Retrospective Studies
;
Upper Extremity
;
Wounds and Injuries

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