DOI QR코드

DOI QR Code

A novel photonumeric hand grading scale for hand rejuvenation

  • Lee, Jong Hun (Department of Plastic and Reconstructive Surgery, Nowon Eulji Medical Center, Eulji University School of College) ;
  • Choi, Yean Su (Department of Plastic and Reconstructive Surgery, Soonchunhyang University Bucheon Hospital) ;
  • Park, Eun Soo (Department of Plastic and Reconstructive Surgery, Soonchunhyang University Bucheon Hospital) ;
  • Kim, Jong Seo (Kim Jongseo Plastic Surgery Clinic) ;
  • Kang, Moon Seok (Garosu Plastic and Aesthetic Surgery Clinic) ;
  • Oh, Hwa Young (Jayjun Plastic and Aesthetic Surgery Clinic) ;
  • Yang, So Dam (Life Sciences R&D, LG Chem, Ltd.) ;
  • Jeon, Seon Hui (Life Sciences R&D, LG Chem, Ltd.)
  • Received : 2019.05.06
  • Accepted : 2019.07.10
  • Published : 2019.07.15

Abstract

Background Few scales are currently available to evaluate changes in hand volume. We aimed to develop a hand grading scale for quantitative assessments of dorsal hand volume with additional consideration of changes in skin texture; to validate and prove the precision and reproducibility of the new scale; and to demonstrate the presence of clinically significant differences between grades on the scale. Methods Five experienced plastic surgeons developed the Hand Volume Rating Scale (HVRS) and rated 91 images. Another five plastic surgeons validated the scale using 50 randomly selected images. Intra- and inter-rater agreement was calculated using the weighted kappa statistic and intraclass correlation coefficients (ICCs). Paired images were also evaluated to verify whether the scale reflected clinical differences. Results The intra-rater agreement was 0.95 (95% confidence interval, 0.922-0.974). The interrater ICCs were excellent (first rating, 0.94; second rating, 0.94). Image pairs that differed by 1, 2, and 3 grades were considered to contain clinically relevant differences in 80%, 100%, and 100% of cases, respectively, while 84% of image pairs of the same grade were found not to show clinically relevant differences. This confirmed that the scale of the HVRS corresponded to clinically relevant distinctions. Conclusions The scale was proven to be precise, reproducible, and reflective of clinical differences.

Keywords

References

  1. Carruthers A, Carruthers J, Hardas B, et al. A validated hand grading scale. Dermatol Surg 2008;34 Suppl 2:S179-83.
  2. Cohen JL, Carruthers A, Jones DH, et al. A randomized, blinded study to validate the Merz Hand Grading Scale for use in live assessments. Dermatol Surg 2015;41 Suppl 1: S384-8. https://doi.org/10.1097/DSS.0000000000000553
  3. Jones D, Donofrio L, Hardas B, et al. Development and validation of a photonumeric scale for evaluation of volume deficit of the hand. Dermatol Surg 2016;42 Suppl1:S195-S202. https://doi.org/10.1097/DSS.0000000000000850
  4. Bidic SM, Hatef DA, Rohrich RJ. Dorsal hand anatomy relevant to volumetric rejuvenation. Plast Reconstr Surg 2010; 126:163-8. https://doi.org/10.1097/prs.0b013e3181da86ee
  5. Bonett DG. Sample size requirements for estimating intraclass correlations with desired precision. Stat Med 2002;21: 1331-5. https://doi.org/10.1002/sim.1108
  6. Fleiss JL, Cohen J. The equivalence of weighted kappa and the intraclass correlation coefficient as measures of reliability. Educ Psychol Meas 1973;33:613-9. https://doi.org/10.1177/001316447303300309
  7. Landis JR, Koch GG. The measurement of observer agreement for categorical data. Biometrics 1977;33:159-74. https://doi.org/10.2307/2529310
  8. Shrout PE, Fleiss JL. Intraclass correlations: uses in assessing rater reliability. Psychol Bull 1979;86:420-8. https://doi.org/10.1037/0033-2909.86.2.420
  9. Cicchetti DV. Guidelines, criteria, and rules of thumb for evaluating normed and standardized assessment instruments in psychology. Psychol Assess 1994;6:284-90. https://doi.org/10.1037/1040-3590.6.4.284
  10. Coleman SR. Hand rejuvenation with structural fat grafting. Plast Reconstr Surg 2002;110:1731-44. https://doi.org/10.1097/00006534-200212000-00017
  11. Jakubietz RG, Kloss DF, Gruenert JG, et al. The ageing hand: a study to evaluate the chronological ageing process of the hand. J Plast Reconstr Aesthet Surg 2008;61:681-6. https://doi.org/10.1016/j.bjps.2007.12.028

Cited by

  1. Escalas clínicas para evaluar el envejecimiento cutáneo: una revisión de la literatura vol.30, pp.2, 2021, https://doi.org/10.35366/101176
  2. Validating a Series of Photonumeric Rating Scales for Use in Facial Aesthetics Using Statistical Analysis of Intra- and Inter-rater Reliability vol.3, pp.4, 2019, https://doi.org/10.1093/asjof/ojab039