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Periosteal Elevator

A periosteal elevator strips the periosteum, the fibrous covering of bone, off the underlying cortex. It is the usual first step before rongeur or osteotome work and one of the most-used instruments in bone-adjacent surgery. Tips range from blunt to sharp, and instruments vary in width, curvature and whether they are single- or double-ended.[1][2]

Common Variants​

Named patterns describe families, and none is a universal specification.

  • Key elevator: broad, flat, straight tip for large bone surfaces such as the pubis, femur and tibia.
  • Freer elevator: a narrow, often double-ended instrument; one common pattern pairs blunt and sharp tips for lifting periosteum in confined spaces and fine dissection in soft-tissue planes.[3][4]
  • Sayre elevator: a double-ended pattern; one 6¾-inch model has a sharp curved blade and a blunt straight blade.[5]
  • Cobb elevator: large and spoon-shaped, made for spinal work and sometimes used at the pubic symphysis.

Selection​

A narrower tip gives access in a confined space but concentrates force. A broader blade needs enough exposure to control its full edge.

Use in Reconstructive Urology​

  • Periosteal stripping before rongeur debridement or an osteotome cut in pubic-bone work.
  • Separating bone from adherent periurethral and periosseous fibrous tissue in PFUI reconstruction.
  • Mobilizing the bladder off the pubic symphysis in complex retropubic dissection after radiation or prior pelvic surgery.

Elevate only what the operation requires and preserve viable periosteum where possible.

Technique​

  • Engage the periosteum with the tip at the margin of the intended cut.
  • Establish the plane under direct vision and advance with controlled force along the bone surface, keeping the tip against bone.
  • Off-plane slippage into soft tissue risks injury to the urethra, bladder or iliac vessels. If tissue does not separate as expected, reassess the plane and surrounding anatomy instead of forcing the tip deeper. Scar, radiation injury and adherent urinary structures can obscure the usual boundary.
  • Inspect the edge and handle before use, maintain visualization and follow the model's reprocessing instructions.

Freer Elevator in Soft-Tissue Dissection​

The Freer elevator is also used for fine soft-tissue plane development, for example in dartos and Buck fascia dissection in penile reconstruction. Some surgeons also use it in corporal mobilization and in dartos pocket creation for IPP and AUS placement. Follow the anatomy and technique of the relevant operation.

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

References​

1. FDA/NLM AccessGUDID. Periosteal Elevator, DI 00083208130021. Device description and nomenclature; accessed September 12, 2026. Device record.

2. KLS Martin. Freer periosteal elevator, 23-436-23-07. Product specifications; accessed September 12, 2026. Manufacturer catalog.

3. Sklar. Sklar Freer Elevator, 47-2380. Product description and specifications; accessed October 4, 2026. Manufacturer information.

4. Anthony Products. Freer Periosteal Elevator. Product description and specifications; accessed October 4, 2026. Manufacturer information.

5. FDA/NLM AccessGUDID. Integra Miltex Sayre Periosteal Elevator, DI 10381780427223. Device description. Device record.