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A Novel Mohs Precision Tool
Jonathan Kanevsky1, Tyler Safran2, Alex Viezel-Mathieu1
1Division of Plastic and Reconstructive Surgery, McGill University Health Centre, Montreal, Quebec.
Background:
Effective treatment by Mohs micrographic surgery requires preparation of high-quality slides.
Objective:
To examine a novel tissue alignment device designed to address variability in tissue processing because of excessive sample trimming.
Materials And Methods:
A device was designed to account for angular errors and unparalleled tissue embedding. A retrospective chart review was performed both with and without the use of the device over the course of a 4-year period (2012-2015).
Results:
Between January 1, 2012, and June 10, 2014, before device implementation, mean number of stages per case was 1.65 (n = 3,680) and mean number of surgeries per day was 6.34 (n = 640). Between June 11, 2014, and October 02, 2015, with device implemented, the average number of stages per case between decreased to 1.58 (n = 2,562) and the number of daily surgeries increased to 7.05 (n = 358). This represents a significant decrease in number of stages per case by 0.07 stages (95% CI: -0.01 to -0.13, p = .02), as well as an increase in the number of cases per day by 0.71 cases (95% CI: 0.12-1.3, p < .01).
Conclusion:
Slide preparation using the novel alignment device may result in less tissue waste and more cases being performed daily.
Insights
A new tissue alignment device for Mohs surgery reduces tissue waste and increases daily case volume. This innovation improves slide preparation efficiency, leading to better patient outcomes and optimized surgical workflows.
Area of Science:
- Dermatology
- Surgical Pathology
- Medical Device Innovation
Background:
- Effective Mohs micrographic surgery relies on high-quality slide preparation.
- Variability in tissue processing, particularly excessive sample trimming, can compromise slide quality.
Purpose of the Study:
- To evaluate a novel tissue alignment device designed to minimize processing variability.
- To assess the impact of the device on tissue handling and surgical efficiency.
Main Methods:
- A specialized tissue alignment device was developed to correct angular errors and improve tissue embedding.
- A retrospective chart review compared outcomes before and after device implementation over a four-year period.
Main Results:
- The device implementation correlated with a significant decrease in the mean number of stages per case (1.65 vs. 1.58, p = .02).
- A significant increase in the mean number of daily surgeries was observed post-implementation (6.34 vs. 7.05 cases/day, p < .01).
Conclusions:
- The novel alignment device facilitates improved slide preparation in Mohs surgery.
- Utilizing this device can lead to reduced tissue waste and increased daily surgical capacity.
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