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Research ArticleArticles

Graft Quality Index: A Morphologic Classification of Follicular Unit Excision (FUE) Grafts

Robert H. True
Hair Transplant Forum International March 2018, 28 (2) 45-53; DOI: https://doi.org/10.33589/28.2.0045
Robert H. True
New York, New York, USA
MD, MPH, FISHRS
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  • For correspondence: drtrue@hairlossdoctors.com
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  • FIGURE 1.
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    FIGURE 1. GQI Grade 2 grafts
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    FIGURE 2. GQI Grade 2 grafts
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    FIGURE 3. GQI Grade 3 grafts
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    FIGURE 4. GQI Grade 4 grafts
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    FIGURE 5. Case with low GQI score
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    FIGURE 6. Case with high GQI score
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    FIGURE 7. Splay
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    FIGURE 8. Variable structural splay
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    FIGURE 9. Iatrogenic splay
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    FIGURE 10. Crushed bulb
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    FIGURE 11. Graft failing insertion with forceps
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    FIGURE 12. Graft successfully inserted with implanter

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    TABLE 1. Distinguishing Characteristics of Grafts in GQI Classes
    GQI ClassSplayTransectionDenuded FolliclesGraft MarginsSupportive TissueTissue Below Bulbs
    1Structural OnlyNoneNoneSmooth and regularAbundantYes
    2Structural OnlyNoneNoneSmooth and RegularScantNo
    3Extreme IatrogenicSomeCommonBare FolliclesNoNo
    4Some IatrogenicCommonOccasionalIrregular with Protruding Transected FolliclesIrregularNo
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    TABLE 2. Scoring with GQI
    GQI Graft GradeGraft NumberPoint Count
    112501250
    2250500
    395285
    445180
    Total26402215GQI Score 1.35
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    TABLE 3. Quality Control in FUE
    Comprehensive FUE Quality Control
    StatisticalMeasurementsDonor Density
    Punch insertions
    Capped grafts
    Pared grafts
    Broken grafts
    Partially transected grafts
    Totally Transected grafts
    Buried grafts
    Missing grafts
    Grafts available for transplantation
    Grafts unavailable for transplantation
    Calculations and RatesMissing graft rate
    Follicle transection rate
    Graft transection rate
    Average hairs per graft
    Calculated Follicles per graft expected and achieved
    Graft MorphologyGraft Quality Index
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In this issue

International Society of Hair Restoration Surgery: 28 (2)
Hair Transplant Forum International
Vol. 28, Issue 2
March/April 2018
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Graft Quality Index: A Morphologic Classification of Follicular Unit Excision (FUE) Grafts
Robert H. True
Hair Transplant Forum International Mar 2018, 28 (2) 45-53; DOI: 10.33589/28.2.0045

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Graft Quality Index: A Morphologic Classification of Follicular Unit Excision (FUE) Grafts
Robert H. True
Hair Transplant Forum International Mar 2018, 28 (2) 45-53; DOI: 10.33589/28.2.0045
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