"Surgical technique: A novel pedicled periosteal scapular flap to facilitate bone growth in an Ovine model"

J Plast Reconstr Aesthet Surg. 2022 Apr;75(4):1497-1520. doi: 10.1016/j.bjps.2022.01.048. Epub 2022 Jan 31.


Background: Vascularised periosteum can used for reconstructing bony defects due to its intrinsic osteogenic properties. This osteogenic potential can be harnessed as a vascularised flap to induce bone growth of complex constructs in-vivo. The authors aimed to use a novel pedicled periosteal flap from the scapula to induce bone growth in a critical sized construct.

Methods: Eight sheep were used as live animal models. A novel periosteal flap was raised from the infraspinous fossa of each animal and wrapped around non-vascularised autologous bone graft. The constructs were allowed to incubate between 1 and 84 days before harvest. Analysis of the flap was done via histopathology using haematoxylin and eosin staining.

Results: All flaps were viable at the conclusion of surgery. Seven flaps showed variable thickening with matrix deposition. One flap was devitalised at time of harvest.

Conclusion: The novel periosteal scapular flap described is a promising technique to induce bone growth in complex constructs.

Keywords: Animal model; Bone; Free flap; Periosteum; Reconstructive surgery.

Publication types

  • Letter
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Bone Transplantation* / methods
  • Humans
  • Osteogenesis
  • Periosteum / surgery
  • Scapula
  • Sheep
  • Surgical Flaps*