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Related Concept Videos

Clinical Applications of Epidermal Stem Cells01:19

Clinical Applications of Epidermal Stem Cells

Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own EpiSCs...
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Regeneration and repair processes are critical in healing damages caused by injury, disease, and aging. In regeneration, the damaged tissue is entirely replaced with new growth that restores the original architecture and function. In contrast, tissue repair usually results in a fixed tissue architecture involving scar formation. Scars generally do not reestablish tissue function and may also exhibit structural abnormalities at the injury site.
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Urinary bladder matrix versus dermal regeneration template for lower extremity wound coverage.

Ye Joon Kim1, Helene Retrouvey1, Alexander Lauder1

  • 1Division of Orthopedic Surgery, Denver Health Medical Center, University of Colorado School of Medicine, 777 Bannock St, MC 0188, Denver, CO, 80204, USA.

European Journal of Orthopaedic Surgery & Traumatology : Orthopedie Traumatologie
|March 15, 2024
PubMed
Summary

Dermal regenerative template (DRT) and urinary bladder matrix (UBM) showed similar success rates for covering lower extremity wounds. Larger wound size was the only factor associated with coverage failure in this study.

Keywords:
Dermal substitutesInfectionLower extremity woundOrthopedic traumaWound coverage failure

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Area of Science:

  • Regenerative medicine
  • Wound healing
  • Biomaterials

Background:

  • Lower extremity wounds pose significant challenges in treatment and healing.
  • Advanced biomaterials like dermal regenerative template (DRT) and urinary bladder matrix (UBM) are explored for wound coverage.
  • Comparing the efficacy of these materials is crucial for optimizing patient outcomes.

Purpose of the Study:

  • To compare the effectiveness of dermal regenerative template (DRT) with and without split-thickness skin-grafting (STSG) against urinary bladder matrix (UBM) for lower extremity wound coverage.
  • To identify factors influencing the success or failure of primary wound coverage procedures.

Main Methods:

  • Retrospective review of 56 lower extremity wounds.
  • Treatment groups included DRT with STSG (DRT-S), DRT only, and UBM only.
  • Data collected included patient demographics, comorbidities, wound characteristics, and coverage outcomes.

Main Results:

  • DRT-only group patients were older, more diabetic, and had smaller, more infected wounds compared to DRT-S.
  • UBM group patients were younger with fewer comorbidities compared to the DRT group.
  • Primary wound coverage failure was not significantly different between DRT and UBM groups and was associated with larger wound surface areas.

Conclusions:

  • Both dermal regenerative template (DRT) and urinary bladder matrix (UBM) demonstrate comparable success rates in achieving primary wound coverage for lower extremity wounds.
  • Wound size is a critical determinant of successful wound coverage, irrespective of the biomaterial used.