ARTAS Robot Efficiently Harvests Follicular Units in Korean Patients

Study: High Hair Yields, Low Hair Follicle Transection Rates with ARTAS Robotic System in Korean Patients

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In a study ((Shin JW, Kwon SH, Kim SA, Kim JY, Na JI, Chan Park K, Huh CH. Characteristics of robotically harvested hair follicles in Koreans. J Am Acad Dermatol, 2014 Sep 13. pii: S0190-9622(14)01789-7.)) published in the January 2014 issue of the journal ‘Dermatologic Surgery,’ researchers from the Republic of Korea collected and analyzed robotically harvested follicular units in a clinical setting using the ARTAS® Robotic System. This is the first time such data has been collected from Korean patients.

Specifically, they looked at the yield of follicular units, the ratio of successfully extracted follicular units to the total number of attempted extractions, and the rate at which hair follicles were transected, or damaged, during the procedure.

They found that the ARTAS system was able to harvest multiple hairs with high yields and low transection rates.

The Study: Characteristics of Robotically Harvested Hair Follicles in Koreans

The researchers collected data on robotically harvested follicular units from 22 Korean patients in a clinical setting using the ARTAS system. To reduce variation due to differences in patients, they collected follicular units from the same scalp location on each patient.

On average, the researchers found that 95% of extraction attempts were successful in producing a follicular unit, while the remaining 5% of attempts resulted in follicular units either being lost inside the robot’s suction system or becoming attached to the robot’s dissection instrument.

Of the successfully extracted follicular units, the average transection rate was 4.9%. This is 16% to 38% lower than has been reported elsewhere ((Wasserbauer S. Robotic assisted harvest of follicular units: Abstract book of 19th annual scientific meeting of International Society of Hair Restoration Surgery; September 14-18, 2011; Anchorage, AK. pp. 252-6.)), ((Kasai K, Haruyama I, Aikawa Y, Saito K. Advantages and disadvantages of FUE using ARTAS system form Japanese: Abstract book of 21st annual scientific meeting of International Society of Hair Restoration Surgery; October 23-26, 2013; San Francisco (CA). pp. 387-8.)). The researchers hypothesized that this lower transection rate could be due attribute these differences to the variability of a patient’s hair profile (e.g., waviness, thickness, color) and the surgeon’s minute control of the depth of punches.

Finally, they found that the robot was able to harvest follicular units that contained multiple hair follicles, anywhere from 2 to 5 follicles with the average being 2.4; However, they also found that as the number of hair follicles inside a follicular unit increased, the likelihood of transecting one or more follicles also increased.

The researchers concluded that the robot efficiently harvests not only follicular units with single hairs but also follicular units with multiple hairs. A limitation of the study was not comparing the characteristics of robotically harvested follicular units to manually harvested follicular units within the same group of patients.


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on Updated 2023-03-02






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