Academic Activity

Selected academic presentations and educational materials on endoscopic spine surgery, biportal endoscopic spine surgery, UBE, UBE-TLIF, revision spine surgery, degenerative lumbar spondylolisthesis, cervical foraminotomy, and cervical spondylotic myelopathy.

Selected Academic Presentations and Educational Materials

Dr. Hanjin Jang has prepared and presented academic materials on biportal endoscopic spine surgery, unilateral biportal endoscopy, revision spine surgery, cervical endoscopic decompression, degenerative lumbar spondylolisthesis, and cervical spondylotic myelopathy.

These materials reflect academic and technical discussions on surgical indications, complication analysis, revision strategies, and minimally invasive spine surgery techniques. The content is provided as a professional academic archive and should not be interpreted as patient-specific medical advice or as predicting treatment outcomes.

Official Patient Information

Related patient-facing Korean information at New Standard Hospital

These official New Standard Hospital patient information pages provide Korean-language context for UBE-TLIF, revision spine surgery, cervical myelopathy, lumbar stenosis, and elderly spine surgery decision-making. They are separate from this academic archive.

ube tlifUBE-TLIF / Endoscopic Lumbar Fusion Patient InformationPatient-facing Korean information about endoscopic lumbar fusion, UBE-TLIF, and treatment decision-making.revisionRevision Endoscopic Spine Surgery Patient InformationPatient-facing Korean information about revision endoscopic spine surgery and symptom re-evaluation after prior surgery.cervical myelopathyCervical Myelopathy / Cervical Endoscopic Decompression Patient InformationPatient-facing Korean information about cervical myelopathy, hand function changes, gait symptoms, and decompression evaluation.elderly decisionElderly Spine Surgery Decision-MakingPatient-facing Korean information about elderly spine surgery decision-making, walking function, neurologic symptoms, and medical risk review.lumbar stenosisLumbar Spinal Stenosis Patient InformationOfficial New Standard Hospital patient information about lumbar spinal stenosis, leg numbness, and walking limitation.

Related Clinical Review

Clinical Perspectives on Lumbar Spinal Stenosis

A clinical review on diagnosis, staging, and the role of biportal endoscopic decompression in selected patients.

Read the clinical review

Presentation Archive

Title

Etiologies of Early Re-Operation After Biportal Endoscopic Spine Surgery

Academic focus

Biportal endoscopic spine surgery, BESS, early re-operation, revision causes, complication analysis.

Key topics

Early re-operation after biportal endoscopic spine surgery
Recurrent lumbar disc herniation
Postoperative hematoma
Remnant disc fragment
Wrong-level surgery
Incomplete decompression
Dural injury
Infection
Diagnostic mismatch

Educational summary

This presentation reviewed early re-operation patterns after biportal endoscopic spine surgery and categorized causes into recurrent pathology, postoperative complications, technical factors, and diagnostic factors. The academic emphasis was on recognizing potentially preventable causes, confirming the operative level, reviewing postoperative MRI when symptoms persist, maintaining a clear operative field, and improving revision decision-making.

Status

Presentation material on file. Conference and date details should be verified before formal citation.

Keywords

BESS
Biportal endoscopic spine surgery
Early re-operation
Revision spine surgery
Recurrent disc herniation
Postoperative hematoma

Title

Etiologies of Early Re-Operation After Unilateral Biportal Endoscopy

Academic focus

UBE, early re-operation, complication analysis, revision strategy.

Key topics

Unilateral biportal endoscopy
Recurrent disc herniation
Remnant disc fragment
Postoperative hematoma
Dural tear
Wrong-level surgery
Incomplete decompression
Neural tissue safety

Educational summary

This academic presentation analyzed early re-operation after unilateral biportal endoscopy and emphasized accurate diagnosis, repeated level confirmation, clear visualization, bleeding control, careful handling of neural tissues, and early recognition of persistent or recurrent neural compression.

Status

Presentation material on file.

Keywords

UBE
Unilateral biportal endoscopy
Revision surgery
Complication analysis
Endoscopic spine surgery

Title

Unilateral Biportal Endoscopy for Recurrent Lumbar Disease

Academic focus

Recurrent lumbar disc herniation, foraminal re-stenosis, revision UBE.

Key topics

Recurrent lumbar disc disease
Recurrent foraminal stenosis
Revision endoscopic decompression
Altered postoperative anatomy
Foraminal decompression
Case-based surgical planning

Educational summary

This case-based educational material discussed unilateral biportal endoscopic approaches for recurrent lumbar disease, including recurrent lumbar disc herniation and foraminal re-stenosis. The educational focus was on defining the recurrent compressive target, selecting a safe endoscopic corridor, and recognizing the altered anatomy of revision surgery.

Status

Presentation material on file.

Keywords

Recurrent lumbar disease
Recurrent HNP
Foraminal re-stenosis
Revision UBE
Endoscopic revision surgery

Title

Degenerative Lumbar Spondylolisthesis: Consideration of UBE Decompression versus Open Decompression

Academic focus

Grade 1 degenerative lumbar spondylolisthesis, decompression strategy, fusion decision-making, UBE-TLIF.

Key topics

Low-grade degenerative lumbar spondylolisthesis
Lumbar spinal stenosis
UBE decompression
Open decompression
Secondary fusion
Slip progression
UBE-TLIF
Surgical indication selection

Educational summary

This presentation reviewed treatment considerations for selected low-grade degenerative lumbar spondylolisthesis and discussed decompression, fusion indications, minimally invasive decompression, and UBE-TLIF as a technical option. The presentation emphasized that unstable or high-grade spondylolisthesis requires careful consideration of fusion, while selected low-grade cases may be discussed in the context of decompressive strategies.

Status

Presentation material on file.

Keywords

Degenerative lumbar spondylolisthesis
Grade 1 spondylolisthesis
UBE decompression
Open decompression
UBE-TLIF
Fusion indication

Title

Unilateral Biportal Endoscopic Cervical Laminoforaminotomy: An Initial Clinical Experience

Academic focus

Cervical foraminal stenosis, cervical disc disease, UBE posterior foraminotomy.

Key topics

Cervical posterior laminoforaminotomy
Cervical foraminal stenosis
Cervical disc disease
V-point identification
Facet drilling
Ligamentum flavum removal
Nerve root decompression
Root-free confirmation

Educational summary

This educational presentation reviewed early clinical experience with unilateral biportal endoscopic cervical laminoforaminotomy for selected cervical foraminal stenosis and cervical disc disease. The technical discussion included V-point identification, facet drilling, laminoforaminotomy, ligamentum flavum removal, additional foraminal decompression, and confirmation of nerve root decompression.

Status

Presentation material on file.

Keywords

Cervical foraminotomy
Cervical laminoforaminotomy
UBE cervical surgery
Cervical foraminal stenosis
Cervical disc disease

Title

Unilateral Laminectomy for Bilateral Decompression by UBE for Cervical Spondylotic Myelopathy

Academic focus

Cervical spondylotic myelopathy, UBE ULBD, cervical decompression.

Key topics

Cervical spondylotic myelopathy
UBE-based unilateral laminectomy for bilateral decompression
Cervical ULBD
Posterior decompression
Cord decompression
Technical feasibility
Early experience
Need for further study

Educational summary

This technical educational presentation discussed selected early experience with UBE-based unilateral laminectomy for bilateral decompression in cervical spondylotic myelopathy. The material was presented as a technical and academic discussion, and it noted that further study is necessary before broad conclusions can be made.

Status

Presentation material on file.

Keywords

Cervical spondylotic myelopathy
Cervical ULBD
UBE
Posterior cervical decompression
Endoscopic cervical surgery

Title

Dural Injury and Revision Decision-Making in Endoscopic Spine Surgery

Academic focus

Complication recognition, dural injury, postoperative neurologic change, revision decision-making.

Key topics

Dural injury
Postoperative neurologic deterioration
Postoperative MRI review
Revision decision-making
Complication recognition
Endoscopic spine surgery safety
Case-based education

Educational summary

This case-based educational material focused on complication recognition and revision decision-making in endoscopic spine surgery. The educational emphasis was on postoperative neurologic change, imaging review, identification of compressive pathology or procedure-related complications, and careful decision-making regarding re-exploration.

Status

Internal educational presentation material.

Keywords

Dural injury
Complication recognition
Revision spine surgery
Postoperative MRI
Endoscopic spine surgery safety

Academic and Clinical Disclaimer

The selected materials are listed for academic and professional reference. They do not provide patient-specific diagnosis or treatment recommendations. Surgical indications and outcomes vary depending on each patient's symptoms, neurologic findings, imaging, general medical condition, and treating physician's judgment.

Research and Education Keywords

Biportal endoscopic spine surgery
Unilateral biportal endoscopy
UBE
BESS
UBE-TLIF
Endoscopic lumbar fusion
Revision spine surgery
Recurrent lumbar disc herniation
Lumbar spinal stenosis
Degenerative lumbar spondylolisthesis
Cervical foraminotomy
Cervical laminoforaminotomy
Cervical spondylotic myelopathy
Endoscopic decompression
Minimally invasive spine surgery

Academic themes

Surgical indications and limitations in endoscopic spine surgery.
Complication analysis and revision strategy in complex lumbar spine surgery.
Technical decision-making in UBE-TLIF and endoscopic lumbar fusion.
Cervical endoscopic decompression, cervical foraminotomy, and cervical spondylotic myelopathy.

Educational scope

Physician-facing educational summaries based on selected presentation materials.
Technical discussion of surgical anatomy, operative planning, and imaging-symptom concordance.
Professional academic archive for lectures, conference presentations, workshops, and surgeon education.

Public release policy

Raw PowerPoint files are not publicly uploaded or linked.
Patient-specific clinical image sets are not publicly provided.
Any future clinical images must be fully de-identified according to the website editorial policy.