CORE NEEDLE BIOPSY

Core Needle Biopsy

Core Needle Biopsy is the most common mode of biopsy followed in dedicated bone tumour centers.

• The procedure is done under anesthesia (local or general).
• Image guidance (Fluoroscope or CT or Ultrasound) is used to obtain representative sample.
• Scarring is minimal (maximum of 1 cm incision is used).
• Sutures or staples are not required routinely.
• A Jamshidi needle is used, varying from 8G ~13G.
• Multiple cores (3-5 no’s), each measuring at least 1 cm is harvested.
• It has a tapered distal tip and wider stem which does not crush the tissues.
• Manual pressure is applied to the area to prevent any bleeding and compression bandage is used for 2 days

The advantages are

• Painless
• Small surgical scar
• Short procedure time (10~20 minutes)
• Can be performed on OPD basis or minimal sedation as in day care procedures
• Low cost
• Easily reproducible
• Accurate

Disadvantages are

• Small area is sampled compared to open biopsy
• Amount of sample is less compared to open biopsy
• The representative area may be missed if image guidance is not taken in some cases.

https://bonecancer.in/2020/05/01/minimally-invasive-surgeries-mis/