title: A pilot study of noninvasive methods to assess healed acute and chronic wounds.
abstract: BACKGROUND
  A variety of instruments are available that can objectively assess physical parameters of the skin such as strength, firmness, elasticity, hydration, and color, often undetected by clinical assessment.
  
  
  OBJECTIVE
  To assess the physical properties of healed acute and chronic wounds using several noninvasive instruments.
  
  
  METHODS
  Four patients with healed acute wounds and four patients with healed chronic wounds were studied using ballistometric, impedance, levarometric, and spectrophotometric measurements.
  
  
  RESULTS
  In general, scars were harder, less elastic, dryer, and more erythematous than control skin. These differences were more pronounced in healed chronic wounds.
  
  
  CONCLUSIONS
  A scar from an acute surgical wound becomes softer, more elastic, dryer, less erythematous, and less pigmented as it ages. In contrast, chronic wound scars become harder as they age. These different properties of healed acute wounds and healed chronic wounds may be a result of the different healing processes in each wound type.
authors.affiliation: Department of Dermatology, Boston University School of Medicine, Boston, Massachusetts, USA.
authors.forename: D Q
authors.initials: DQ
authors.lastname: Ho
authors.forename: Y M
authors.initials: YM
authors.lastname: Bello
authors.forename: G L
authors.initials: GL
authors.lastname: Grove
authors.forename: J
authors.initials: J
authors.lastname: Manzoor
authors.forename: A P
authors.initials: AP
authors.lastname: Lopez
authors.forename: C R
authors.initials: CR
authors.lastname: Zerweck
authors.forename: E A
authors.initials: EA
authors.lastname: Pierce
authors.forename: J L
authors.initials: JL
authors.lastname: Werkheiser
authors.forename: T J
authors.initials: TJ
authors.lastname: Phillips
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D001707:Biopsy, Needle; D002908:Chronic Disease; D002921:Cicatrix / Q000473:pathology; D004548:Elasticity; D004553:Electric Conductivity; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D012867:Skin / Q000378:metabolism / Q000473:pathology; D012879:Skin Physiological Phenomena; D013053:Spectrophotometry; D014647:Varicose Ulcer / Q000473:pathology; D014945:Wound Healing