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Kevin T Foley - One of the best experts on this subject based on the ideXlab platform.
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minimally invasive transforaminal lumbar interbody fusion tlif Technical Feasibility and initial results
Journal of Spinal Disorders & Techniques, 2005Co-Authors: James D Schwender, Langston T Holly, David Rouben, Kevin T FoleyAbstract:Abstract:Forty-nine patients underwent minimally invasive transforaminal lumbar interbody fusion (TLIF) from October 2001 to August 2002 (minimum 18-month follow-up). The diagnosis was degenerative disc disease with herniated nucleus pulposus (HNP) in 26, spondylolisthesis in 22, and a Chance-type s
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minimally invasive transforaminal lumbar interbody fusion tlif Technical Feasibility and initial results
Journal of Spinal Disorders & Techniques, 2005Co-Authors: James D Schwender, Langston T Holly, David Rouben, Kevin T FoleyAbstract:Forty-nine patients underwent minimally invasive transforaminal lumbar interbody fusion (TLIF) from October 2001 to August 2002 (minimum 18-month follow-up). The diagnosis was degenerative disc disease with herniated nucleus pulposus (HNP) in 26, spondylolisthesis in 22, and a Chance-type seatbelt fracture in 1. The majority of cases (n = 45) were at L4-L5 or L5-S1. A paramedian, muscle-sparing approach was performed through a tubular retractor docked unilaterally on the facet joint. A total facetectomy was then conducted, exposing the disc space. Discectomy and endplate preparation were completed through the tube using customized surgical instruments. Structural support was achieved with allograft bone or interbody cages. Bone grafting was done with local autologous or allograft bone, augmented with recombinant human bone morphogenetic protein-2 in some cases. Bilateral percutaneous pedicle screw-rod placement was accomplished with the Sextant system. There were no conversions to open surgery. Operative time averaged 240 minutes. Estimated blood loss averaged 140 mL. Mean length of hospital stay was 1.9 days. All patients presenting with preoperative radiculopathy (n = 45) had resolution of symptoms postoperatively. Complications included two instances of screw malposition requiring screw repositioning and two cases of new radiculopathy postoperatively (one from graft dislodgement, the other from contralateral neuroforaminal stenosis). Narcotic use was discontinued 2-4 weeks postoperatively. Improvements in average Visual Analogue Pain Scale and Oswestry Disability Index (preoperative to last follow-up) scores were 7.2-2.1 and 46-14, respectively. At last follow-up, all patients had solid fusions by radiographic criteria. Results of this study indicate that minimally invasive TLIF is feasible and offers several potential advantages over traditional open techniques.
James D Schwender - One of the best experts on this subject based on the ideXlab platform.
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minimally invasive transforaminal lumbar interbody fusion tlif Technical Feasibility and initial results
Journal of Spinal Disorders & Techniques, 2005Co-Authors: James D Schwender, Langston T Holly, David Rouben, Kevin T FoleyAbstract:Abstract:Forty-nine patients underwent minimally invasive transforaminal lumbar interbody fusion (TLIF) from October 2001 to August 2002 (minimum 18-month follow-up). The diagnosis was degenerative disc disease with herniated nucleus pulposus (HNP) in 26, spondylolisthesis in 22, and a Chance-type s
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minimally invasive transforaminal lumbar interbody fusion tlif Technical Feasibility and initial results
Journal of Spinal Disorders & Techniques, 2005Co-Authors: James D Schwender, Langston T Holly, David Rouben, Kevin T FoleyAbstract:Forty-nine patients underwent minimally invasive transforaminal lumbar interbody fusion (TLIF) from October 2001 to August 2002 (minimum 18-month follow-up). The diagnosis was degenerative disc disease with herniated nucleus pulposus (HNP) in 26, spondylolisthesis in 22, and a Chance-type seatbelt fracture in 1. The majority of cases (n = 45) were at L4-L5 or L5-S1. A paramedian, muscle-sparing approach was performed through a tubular retractor docked unilaterally on the facet joint. A total facetectomy was then conducted, exposing the disc space. Discectomy and endplate preparation were completed through the tube using customized surgical instruments. Structural support was achieved with allograft bone or interbody cages. Bone grafting was done with local autologous or allograft bone, augmented with recombinant human bone morphogenetic protein-2 in some cases. Bilateral percutaneous pedicle screw-rod placement was accomplished with the Sextant system. There were no conversions to open surgery. Operative time averaged 240 minutes. Estimated blood loss averaged 140 mL. Mean length of hospital stay was 1.9 days. All patients presenting with preoperative radiculopathy (n = 45) had resolution of symptoms postoperatively. Complications included two instances of screw malposition requiring screw repositioning and two cases of new radiculopathy postoperatively (one from graft dislodgement, the other from contralateral neuroforaminal stenosis). Narcotic use was discontinued 2-4 weeks postoperatively. Improvements in average Visual Analogue Pain Scale and Oswestry Disability Index (preoperative to last follow-up) scores were 7.2-2.1 and 46-14, respectively. At last follow-up, all patients had solid fusions by radiographic criteria. Results of this study indicate that minimally invasive TLIF is feasible and offers several potential advantages over traditional open techniques.
Jeongsik Byeon - One of the best experts on this subject based on the ideXlab platform.
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Technical Feasibility of a newly designed bendable forceps for difficult endoscopic tissue samplings with video
Surgical Endoscopy and Other Interventional Techniques, 2020Co-Authors: Dong Seok Lee, Ji Won Kim, Kook Lae Lee, Byeong Gwan Kim, Su Hwan Kim, Jeongsik ByeonAbstract:Biopsies with conventional forceps beyond the operating range are difficult and cumbersome. Thus, we developed a new bendable forceps for improved access to gastrointestinal lesions and evaluated its Technical Feasibility. A bendable forceps was constructed with two channels and a two-stage knob. The bending motion-related structures were designed to improve the range of motion. For the evaluation of the forceps, we used 2 gastrointestinal simulators: an ex vivo porcine model, and an in vivo porcine model with some difficult endoscopic biopsy cases. All evaluations were performed by 5 expert endoscopists and an expert pathologist. Compared with the conventional forceps, the bendable forceps had greater efficacy in the simulator (6.2 ± 0.4 vs. 1.96 ± 0.2, p < 0.001), ex vivo porcine model (6.33 ± 0.52 vs. 4.25 ± 0.89, p < 0.001), and in vivo porcine model (6.33 ± 0.52 vs. 4.25 ± 0.89, p < 0.001); greater safety in the simulator (1.92 ± 0.13 s vs. 4.88 ± 0.50 s, p < 0.001), ex vivo porcine model (2.02 ± 0.15 s vs 4.66 ± 0.27 s, p < 0.001), and in vivo porcine model (2.02 ± 0.15 s vs. 4.08 ± 0.70 s, p = 0.002); and larger specimens in the ex vivo porcine model (3.92 ± 0.03 mm vs. 3.85 ± 0.07 mm, p = 0.020). This study showed that compared with the conventional forceps, the bendable forceps was effective and safe to use for accessing difficult lesions in the three models. We believe that the bendable forceps serves as a useful supplementary diagnostic tool for accessing difficult lesions. However, further validation of its usefulness in the human body is needed.
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iddf2019 abs 0061 Technical Feasibility of a newly designed bendable forceps for difficult endoscopic tissue samplings
Gut, 2019Co-Authors: Dong Seok Lee, Ji Won Kim, Kook Lae Lee, Byeong Gwan Kim, Yong Jin Jeong, Su Hwan Kim, Jeongsik ByeonAbstract:Background Biopsies with conventional forceps beyond the operating range are difficult and cumbersome. Thus, we developed a new forceps and evaluated its Technical Feasibility. Methods A bendable forceps was constructed with two channels and a two-stage knob. The bending motion-related structures were designed to improve the range of motion(figure 1). For performance comparisons, we established a scoring system for the evaluation of the forceps, with 9 special cases. All procedures were performed by 5expert endoscopists. Results Biopsies with the bendable forceps were easy and faster than those performed with conventional forceps in the 9 cases. The mean evaluation scores were 6.2 ± 0.4 and 1.96 ± 0.2 for the bendable and conventional forceps, respectively (P Conclusions This preliminary study showed that the newly developed bendable forceps allowed for a wide range of motion and is more effective than conventional forceps for endoscopic biopsies in complex GI lesions.
Dong Seok Lee - One of the best experts on this subject based on the ideXlab platform.
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Technical Feasibility of a newly designed bendable forceps for difficult endoscopic tissue samplings with video
Surgical Endoscopy and Other Interventional Techniques, 2020Co-Authors: Dong Seok Lee, Ji Won Kim, Kook Lae Lee, Byeong Gwan Kim, Su Hwan Kim, Jeongsik ByeonAbstract:Biopsies with conventional forceps beyond the operating range are difficult and cumbersome. Thus, we developed a new bendable forceps for improved access to gastrointestinal lesions and evaluated its Technical Feasibility. A bendable forceps was constructed with two channels and a two-stage knob. The bending motion-related structures were designed to improve the range of motion. For the evaluation of the forceps, we used 2 gastrointestinal simulators: an ex vivo porcine model, and an in vivo porcine model with some difficult endoscopic biopsy cases. All evaluations were performed by 5 expert endoscopists and an expert pathologist. Compared with the conventional forceps, the bendable forceps had greater efficacy in the simulator (6.2 ± 0.4 vs. 1.96 ± 0.2, p < 0.001), ex vivo porcine model (6.33 ± 0.52 vs. 4.25 ± 0.89, p < 0.001), and in vivo porcine model (6.33 ± 0.52 vs. 4.25 ± 0.89, p < 0.001); greater safety in the simulator (1.92 ± 0.13 s vs. 4.88 ± 0.50 s, p < 0.001), ex vivo porcine model (2.02 ± 0.15 s vs 4.66 ± 0.27 s, p < 0.001), and in vivo porcine model (2.02 ± 0.15 s vs. 4.08 ± 0.70 s, p = 0.002); and larger specimens in the ex vivo porcine model (3.92 ± 0.03 mm vs. 3.85 ± 0.07 mm, p = 0.020). This study showed that compared with the conventional forceps, the bendable forceps was effective and safe to use for accessing difficult lesions in the three models. We believe that the bendable forceps serves as a useful supplementary diagnostic tool for accessing difficult lesions. However, further validation of its usefulness in the human body is needed.
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iddf2019 abs 0061 Technical Feasibility of a newly designed bendable forceps for difficult endoscopic tissue samplings
Gut, 2019Co-Authors: Dong Seok Lee, Ji Won Kim, Kook Lae Lee, Byeong Gwan Kim, Yong Jin Jeong, Su Hwan Kim, Jeongsik ByeonAbstract:Background Biopsies with conventional forceps beyond the operating range are difficult and cumbersome. Thus, we developed a new forceps and evaluated its Technical Feasibility. Methods A bendable forceps was constructed with two channels and a two-stage knob. The bending motion-related structures were designed to improve the range of motion(figure 1). For performance comparisons, we established a scoring system for the evaluation of the forceps, with 9 special cases. All procedures were performed by 5expert endoscopists. Results Biopsies with the bendable forceps were easy and faster than those performed with conventional forceps in the 9 cases. The mean evaluation scores were 6.2 ± 0.4 and 1.96 ± 0.2 for the bendable and conventional forceps, respectively (P Conclusions This preliminary study showed that the newly developed bendable forceps allowed for a wide range of motion and is more effective than conventional forceps for endoscopic biopsies in complex GI lesions.
Langston T Holly - One of the best experts on this subject based on the ideXlab platform.
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minimally invasive transforaminal lumbar interbody fusion tlif Technical Feasibility and initial results
Journal of Spinal Disorders & Techniques, 2005Co-Authors: James D Schwender, Langston T Holly, David Rouben, Kevin T FoleyAbstract:Abstract:Forty-nine patients underwent minimally invasive transforaminal lumbar interbody fusion (TLIF) from October 2001 to August 2002 (minimum 18-month follow-up). The diagnosis was degenerative disc disease with herniated nucleus pulposus (HNP) in 26, spondylolisthesis in 22, and a Chance-type s
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minimally invasive transforaminal lumbar interbody fusion tlif Technical Feasibility and initial results
Journal of Spinal Disorders & Techniques, 2005Co-Authors: James D Schwender, Langston T Holly, David Rouben, Kevin T FoleyAbstract:Forty-nine patients underwent minimally invasive transforaminal lumbar interbody fusion (TLIF) from October 2001 to August 2002 (minimum 18-month follow-up). The diagnosis was degenerative disc disease with herniated nucleus pulposus (HNP) in 26, spondylolisthesis in 22, and a Chance-type seatbelt fracture in 1. The majority of cases (n = 45) were at L4-L5 or L5-S1. A paramedian, muscle-sparing approach was performed through a tubular retractor docked unilaterally on the facet joint. A total facetectomy was then conducted, exposing the disc space. Discectomy and endplate preparation were completed through the tube using customized surgical instruments. Structural support was achieved with allograft bone or interbody cages. Bone grafting was done with local autologous or allograft bone, augmented with recombinant human bone morphogenetic protein-2 in some cases. Bilateral percutaneous pedicle screw-rod placement was accomplished with the Sextant system. There were no conversions to open surgery. Operative time averaged 240 minutes. Estimated blood loss averaged 140 mL. Mean length of hospital stay was 1.9 days. All patients presenting with preoperative radiculopathy (n = 45) had resolution of symptoms postoperatively. Complications included two instances of screw malposition requiring screw repositioning and two cases of new radiculopathy postoperatively (one from graft dislodgement, the other from contralateral neuroforaminal stenosis). Narcotic use was discontinued 2-4 weeks postoperatively. Improvements in average Visual Analogue Pain Scale and Oswestry Disability Index (preoperative to last follow-up) scores were 7.2-2.1 and 46-14, respectively. At last follow-up, all patients had solid fusions by radiographic criteria. Results of this study indicate that minimally invasive TLIF is feasible and offers several potential advantages over traditional open techniques.
