Surgical Techniques Development

19 pages, 12650 KiB

Open AccessFeature PaperArticle

Technical Note on Unilateral Biportal Lumbar Endoscopic Interbody Fusion

by Eugene Tze-Chun Lau and Pang Hung Wu

Surg. Tech. Dev. 2022, 11(2), 71-89; https://doi.org/10.3390/std11020007 - 15 Aug 2022

Cited by 2 | Viewed by 3648

Unilateral biportal lumbar endoscopic interbody fusion is a relatively new technique in the field of minimally invasive spine surgery. It combines the benefits of preservation of the normal anatomy of the spine with direct visualization of the decompression of neural elements and endplate [...] Read more.

Unilateral biportal lumbar endoscopic interbody fusion is a relatively new technique in the field of minimally invasive spine surgery. It combines the benefits of preservation of the normal anatomy of the spine with direct visualization of the decompression of neural elements and endplate preparation for fusion. This results in high union rates and excellent outcomes for patients with back pain and lumbar spinal stenosis from spondylolisthesis while reducing the risk of injuries to the neural elements, endplate fractures and the theoretical rate of adjacent segment disease from disruption of the musculature. In this paper, we describe the steps and technical pearls pertaining to this technique and methods to avoid common pitfalls and complications. In conclusion, this technique would be a good tool in the armamentarium of a spinal surgeon specializing in minimally invasive spinal surgery. Full article

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9 pages, 2706 KiB

Open AccessCase Report

Surgical Ostioplasty of the Left Main Coronary Artery: An Alternative to Coronary Artery Bypass Grafting in the Treatment of Left Main Stem Isolated Ostial Stenosis—A Case Series

by Alvaro Perazzo, Pedro Rafael Vieira de Oliveira Salerno, Mariana Ferreira Paulino, Vitoria de Ataide Caliari, Isabella Martins Ribeiro, Roberto Lorusso, Ricardo de Carvalho Lima and Pedro Rafael Salerno

Surg. Tech. Dev. 2022, 11(2), 62-70; https://doi.org/10.3390/std11020006 - 20 Jul 2022

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Abstract

This study aims to demonstrate the use of surgical ostioplasty of the left main coronary artery as an alternative technique to the conventional use of coronary artery bypass grafting for the treatment of left main stem-isolated ostial stenosis. From 2002 to 2021, five [...] Read more.

This study aims to demonstrate the use of surgical ostioplasty of the left main coronary artery as an alternative technique to the conventional use of coronary artery bypass grafting for the treatment of left main stem-isolated ostial stenosis. From 2002 to 2021, five patients—three women (60%) and two men (40%)—presented with a history of angina pectoris and were diagnosed with isolated stenosis of the coronary ostia associated with normal distal coronary arteries. Pre-operative cardiac catheterization and echocardiography were performed to aid in the diagnosis. The patients were submitted to surgical ostioplasty with a posterior approach using a saphenous patch. There were no hospital deaths or myocardial infarctions during the post-operative period. The mean cardiopulmonary bypass time was 82 min (range, 70–95 min), and the mean aortic-clamp time was 62 min (range, 55–75 min). The average time of hospitalization was 6.2 days (range, 4–18 days). Patients with isolated stenosis of the coronary ostia associated with normal distal coronary arteries may be submitted to left main coronary artery ostioplasty as an alternative to coronary artery bypass grafting, the traditional surgical technique for this pathology. Full article

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8 pages, 1670 KiB

Open AccessArticle

The Utility of Lesser Trochanter Version to Estimate Femoral Anteversion in Total Hip Arthroplasty: A Three-Dimensional Computed Tomography Study

by Mohamed Zaim bin Mohamed Thajudeen, Azhar Mahmood Merican, Muhammad Sufian Hashim and Abid Nordin

Surg. Tech. Dev. 2022, 11(2), 54-61; https://doi.org/10.3390/std11020005 - 28 Jun 2022

Cited by 1 | Viewed by 2732

Abstract

Objective: Femoral anteversion is an important parameter that can prevent complication following total hip arthroplasty (THA) caused by improper positioning of the implant. However, assessing the femoral anteversion can be challenging in situations with significant defect of the femoral neck. In this study, [...] Read more.

Objective: Femoral anteversion is an important parameter that can prevent complication following total hip arthroplasty (THA) caused by improper positioning of the implant. However, assessing the femoral anteversion can be challenging in situations with significant defect of the femoral neck. In this study, the lesser trochanter version was nominated as alternative parameter to femoral anteversion. So, the main objective of this study is to determine whether the femoral anteversion correlates with the lesser trochanter version. Design: Retrospective study. Methods: Three-dimensional images of 100 femora were generated and their femoral anteversion and lesser trochanter version was measured. Correlation between the parameters were calculated. Results: The mean lesser trochanter version was 38.54° ± 7.86° (mean ± SD), while the mean femoral anteversion was 11.84° ± 10.06°. The lesser trochanter version was inversely correlated with the femoral anteversion with a correlation coefficient of −0.72. Conclusions: The lesser trochanter should be considered as an additional bony landmark to assess proper implant positioning in THA. Full article

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Surg. Tech. Dev., Volume 11, Issue 2 (September 2022) – 3 articles

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