Chronic soft tissues defects can extend into the fat layer or even deeper and can cause functional disadvantages. Split-thickness skin grafts (STSGs) used to cover these wounds have varying success rates. To improve wound healing in chronic wounds the authors have studied the application of autologous platelet concentrates in a human keratinocyte culture model in vitro and in a combination with surgical procedures in vivo as second line therapy in patients with initially failed wound closure.
For in vitro testing on keratinocytes a platelet-mediator concentrate (PMC) was processed with a commercially available bed-side system (ATR®, Curasan, Germany). In a clinical study soft tissue defects (n=5) were treated using a combination of surgical debridement and autologous platelet rich plasma (PRP). Time of healing as determined by epithelization as well as Laser Doppler Imaging to visualize blood flow were analyzed. Additionally, changes in "ease of surgical wound closure" were determined. Finally, the quality of life of patients was assessed using a validated questionnaire.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
5
Adding PRP to wound bed during surgical debridement
Medical School Hannover
Hanover, Lower Saxony, Germany
Wound Closure
Area of wound closure in % compared to initial size
Time frame: 4 weeks
Blood Flow
Blood flow measured in wound margins and wound bed compared to regular skin measured using Laser Doppler Imaging
Time frame: 4 weeks
Wound Quality of Life
Quality of patients' life measured using Wound-QoL® Questionnaire before and after Intervention. Seventeen items are included in the Wound-QoL, which could be attributed to three subscales on everyday life, body, and psyche. The paper presents the overall score. A higher value correlates with more wound related burden, meaning a lower value indicates higher qulitiy of life. More information: https://www.ncbi.nlm.nih.gov/pubmed/24899053
Time frame: 21 days
Ease of surgical wound closure
Estimated ease of surgical wound closure. The patients'wound was discussed by at least two surgeons to obtain agreement on a 14- point "Ease of Closure" scale. This was done on day 0 as well as day 21. The scale ranged from a score of 0, meaning the wound was closed or so small as to require no closure technique, to a score of 13, meaning that it was not possible to close the wound with known reconstructive surgical techniques. A higher value therefore correlates with more complex surgery. More information: https://www.ncbi.nlm.nih.gov/pubmed/10231510
Time frame: 21 days
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