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Periosteal Elevator

A periosteal elevator — sometimes just called an "elevator" — is a flat, blunt-to-sharp-tipped instrument for stripping the periosteum (the fibrous covering of bone) off the underlying cortex. The prerequisite step before any bone removal, and one of the most-used instruments in any orthopedic or bone-adjacent operation.

Common Variants​

  • Key elevator — broad, flat, straight tip; the workhorse for large bone surfaces (pubis, femur, tibia)
  • Freer elevator — narrower, sometimes double-ended (blunt one side, semi-sharp the other); fine dissection in periosteum and soft-tissue planes
  • Sayre elevator — curved, heavier; used for larger bone dissection
  • Cobb elevator — large spoon-shape for spinal work; can be used for pubic symphyseal dissection

Use in Reconstructive Urology​

  • Periosteal stripping before rongeur debridement or osteotome cut
  • Separating bone from adherent periurethral / periosseous fibrous tissue in PFUI reconstruction
  • Mobilizing the bladder off the pubic symphysis in complex retropubic dissection after radiation or prior pelvic surgery
  • Dartos and Buck's fascia dissection in penile reconstruction (Freer specifically — also useful in soft-tissue planes, not just bone)

Technique​

  • Engage the periosteum with the tip at the margin of the desired cut
  • Push in the plane along the bone surface with controlled force
  • Keep the tip against bone — off-plane slippage into soft tissue risks injury to urethra, bladder, or iliac vessels

Dual Use (Freer Elevator)​

The Freer elevator is one of the most versatile instruments on the reconstructive tray — it strips periosteum, but it is also used for:

  • Corpus cavernosum mobilization in Peyronie's surgery
  • Urethral dissection planes
  • Dartos pocket creation for IPP and AUS
  • General fine soft-tissue plane development

See also: Rongeur, Osteotome and Mallet, Bony Pelvic Anatomy.