Tae-Ahn Jahng

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STUDY DESIGN Intervention comparison study. OBJECTIVE To assess postoperative cervical lordosis, clinical outcome, and progression of ossification of the posterior longitudinal ligament (OPLL) in patient of cervical spondylotic myelopathy (CSM) by the OPLL. SUMMARY OF BACKGROUND DATA The posterior approach is usually used for multilevel (≥3) CSM and is(More)
BACKGROUND CONTEXT Improving the surgical outcome of nonambulatory patients with metastatic epidural spinal compression has been of great interest lately. Although there have been many reports regarding the surgical outcome of spinal metastasis, the surgical outcome in terms of the probability of operative success for nonambulatory patients has not been(More)
OBJECTIVE Total laminectomy (TL) is an effective surgical technique for the treatment of cervical ossification of the posterior longitudinal ligament (OPLL) along multiple levels. However, kyphosis and probable neurological deterioration have been frequently reported after laminectomy. We analyzed the changes in the cervical curvature after TL and(More)
To evaluate the effects of cervical artificial disc replacement (ADR) and anterior discectomy and fusion (ACDF) on adjacent spinal alignments. The cohort consisted of 33 patients who undergone single-level cervical ADR (15 patients) and ACDF (18 patients) for radiculopathy, who had not had any previous spine surgery, and who had a minimum follow-up of 2(More)
BACKGROUND CONTEXT There are limited data analyzing radiological and clinical factors for the functional outcomes of surgery for spinal metastasis. Also, there are few studies to investigate the relationship between the functional outcome and the patients' survival. Thus, analysis of both functional outcomes and the survival with their relationship in a(More)
The aim of this study was to analyze the clinical characteristics of thoracic ossified ligamentum flavum (OLF) and to elucidate prognostic factors as well as effective surgical treatment modality. The authors analyzed 106 thoracic OLF cases retrospectively from January 1999 to December 2008. The operative (n = 40) and the non-operative group (n = 66) were(More)
STUDY DESIGN A retrospective cohort-nested longitudinal study. OBJECTIVE To evaluate radiologic and clinically functional outcomes after single-level anterior cervical discectomy and fusion (ACDF) using 3 different fusion construct systems applying an accurate and reliable methodology. SUMMARY OF BACKGROUND DATA ACDF is an established procedure that(More)
OBJECTIVE The aim of this study was to evaluate the efficacy of endovascular therapy as a primary treatment for spinal dural arteriovenous fistula (DAVF). METHODS The authors reviewed 18 patients with spinal DAVFs for whom endovascular therapy was considered as an initial treatment at a single institute between 1993 and 2006. NBCA embolization was(More)
STUDY DESIGN Retrospective comparative study. OBJECTIVE Two polyetheretherketone (PEEK) cages of different designs were compared in terms of the postoperative segmental kyphosis after anterior cervical discectomy and fusion. SUMMARY OF BACKGROUND DATA Segmental kyphosis occasionally occurs after the use of a stand-alone cage for anterior cervical(More)
BACKGROUND Giant invasive spinal schwannoma (GISS) is defined as a lesion that extends over > 2 vertebral levels, erodes vertebral bodies, and extends posteriorly and laterally into the myofascial planes. Because of its rarity, few reports have been issued. OBJECTIVE To analyze the clinical features and outcomes of GISS and to discuss surgical strategies.(More)