Bone Wax

What Bone Wax Is

Bone Wax is a sterile, non-absorbable surgical hemostatic material intended for the mechanical control of bleeding from bone surfaces during surgical procedures. Rather than acting biochemically, it works as a physical barrier: pressed into bleeding bone, it occludes the open osseous channels and provides immediate hemostasis by tamponade. It is supplied sterile for single use and is indicated for use by qualified medical professionals.

Composition and Construction

Bone Wax is a combination of beeswax and paraffin wax, with isopropyl palmitate acting as a wax-softening agent. It is uncoated, undyed and natural in colour, opaque, and carries a characteristic waxy odour. The material is non-absorbable and is not intended to be resorbed by the body; it remains at the site unless removed by the surgeon. In tissue-reactivity testing it is rated Grade-0 (none).

Handling Characteristics

Bone Wax softens on warming and melts at approximately 62°C to 64°C, so it should not be subjected to excessive heat. It should be used sparingly, with excess removed from the operative site whenever clinically feasible, since material left in situ can act as a barrier to bony repair. It should not be manipulated with latex gloves, as deposited latex proteins may precipitate an allergic reaction. Aseptic technique should be maintained throughout handling and application.

Clinical Applications

Bone Wax is suited to procedures that involve cutting through bone, including general orthopaedics, craniomaxillofacial and neurosurgical work, and cardio-thoracic surgery for sternal closure. Selection and use depend on the patient’s condition, the type of procedure, the amount and location of bone bleeding, and the surgeon’s clinical judgement.