Bioengineered dermal matrix (Integra®) reduces donor site morbidity in total phallic construction with radial artery forearm free-flap

Int J Impot Res. 2026 Apr;38(4):333-339. doi: 10.1038/s41443-023-00775-5. Epub 2023 Oct 17.

Abstract

Total phallic construction with radial artery forearm free-flap (RAFFF) is widely regarded as the gold standard approach for phalloplasty. However, donor-site morbidity remains a significant concern, which is typically managed by using a full-thickness skin graft (FTSG) on the forearm. Split thickness skin grafts (STSG) have been proposed as an alternative, along with the use of an acellular dermal matrix substitute. A retrospective comparative analysis was performed to assess the differences in operative, functional and cosmetic outcomes between FTSG (Group A) and the combination of acellular dermal matrix with STSG (Group B). A retrospective cohort study was conducted on all patients who underwent total phallic construction with RAFFF, between 2016 and 2021. Post-operative surgical and functional outcomes were evaluated using validated tools. A total of 34 patients were included in the study, with 18 patients (52.9%) in Group A and 16 patients (47.1%) in Group B. Group B demonstrated a significant advantage in terms of healing time (24 days vs. 30 days, p = 0.003) and complete graft take (93.8% vs. 27.8%, p = 0.001). Group B also had significantly shorter operative times (310 min vs. 447 min, p = 0.001) and a reduced median hospital stay (8 days vs. 10 days, p = 0.001). Satisfaction with cosmesis was significantly higher in Group B (93.8% vs. 66.7%, p = 0.048).

MeSH terms

  • Acellular Dermis
  • Adult
  • Chondroitin Sulfates* / therapeutic use
  • Collagen* / therapeutic use
  • Forearm / surgery
  • Free Tissue Flaps*
  • Humans
  • Male
  • Middle Aged
  • Penis* / surgery
  • Plastic Surgery Procedures* / methods
  • Radial Artery / surgery
  • Radial Artery / transplantation
  • Retrospective Studies
  • Skin Transplantation* / methods
  • Transplant Donor Site* / surgery

Substances

  • Chondroitin Sulfates
  • integra artificial skin
  • Collagen