Otlans Peters T, Buuck Taylor, Rosencrans Adam, Brady Jacqueline M
School of Medicine, Oregon Health & Science University, Portland, Oregon, U.S.A.
Arthrosc Sports Med Rehabil. 2021 Apr 12;3(3):e867-e871. doi: 10.1016/j.asmr.2021.02.009. eCollection 2021 Jun.
To quantify an orthopaedic trainee's ability to tie arthroscopic knots before and after a short cadaveric-based arthroscopy training period using a commercially available knot-tying workstation.
During a weeklong cadaveric arthroscopic training camp, 15 third- and fourth-year orthopaedic residents were evaluated using a commercially available benchtop knot-tying workstation. At the beginning of the week (baseline), each participant was asked to tie 3 knots of his or her choice backed up by 3 half-hitches using nonabsorbable suture. Successful knots fit the sizer and elongated less than 3 mm after application of a 15-lb load. Afterward, residents watched a video demonstrating a sample knot and were encouraged to practice over the ensuing days. At the end of the week (post-training), residents were asked to tie 3 knots. The time to completion and success of each knot were recorded. To compare baseline and post-training knot success, tests and χ analysis were performed.
During baseline testing, residents successfully tied 26.7% of their knots (12 of 45 knots) in 352 ± 116 seconds (mean ± standard deviation). During post-training testing, residents successfully tied 66.7% of knots (30 of 45 knots, = .00014) in 294 ± 63 seconds ( = .023), showing significant improvement in the time and ability to tie arthroscopic knots.
With a short cadaveric-based training period, orthopaedic trainees showed a significant improvement in their ability to tie arthroscopic knots on a commercially available benchtop knot-tying workstation. Given the initial low percentage of successfully tied knots and the limited opportunities for trainees to improve, trainees should be encouraged to practice and improve their skills.
With training, residents can improve arthroscopic knot-tying abilities, which may allow them to successfully perform this critical task in the operating room.
使用市售的打结工作站，量化骨科实习生在短期尸体关节镜训练前后系关节镜结的能力。
在为期一周的尸体关节镜训练营期间，使用市售的台式打结工作站对15名三、四年级骨科住院医师进行评估。在本周开始时（基线），要求每位参与者使用不可吸收缝线系3个自己选择的结，并辅以3个半结。成功的结要符合尺寸规，在施加15磅负荷后伸长小于3毫米。之后，住院医师观看了一个展示示例结的视频，并在随后的几天里被鼓励进行练习。在本周结束时（训练后），要求住院医师系3个结。记录每个结的完成时间和是否成功。为了比较基线和训练后打结的成功率，进行了检验和χ分析。
在基线测试期间，住院医师在352±116秒（平均值±标准差）内成功系结26.7%（45个结中的12个）。在训练后测试期间，住院医师在294±63秒（=0.023）内成功系结66.7%（45个结中的30个，=0.00014），显示出系关节镜结的时间和能力有显著改善。
经过短暂的尸体训练期，骨科实习生在市售台式打结工作站上系关节镜结的能力有显著提高。鉴于最初成功系结的比例较低，且实习生提高的机会有限，应鼓励实习生练习并提高他们的技能。
通过训练，住院医师可以提高关节镜打结能力，这可能使他们能够在手术室成功完成这项关键任务。
