Puncture Biopsy Needle For Bone And Soft Tissue Tumors

The classification and diagnosis of bone and soft tissue tumors are extremely complicated, and it is difficult to make a correct diagnosis solely depending on clinical examination and imaging. Biopsy is the necessary way to diagnose most bone and soft tissue tumors. Biopsy is further divided into puncture biopsy and open biopsy.
Puncture biopsy is to remove about 0.3*0.3*1cm of tissue with a coarse trocar and send it for pathological diagnosis. Coarse trocar puncture is best performed in hospitals with a large number of bone and soft tissue tumor cases. Only experienced doctors can get the tumor tissue, and the design of puncture needle path should be consistent with the surgical approach, so it can be removed during the operation. Therefore, foreign countries advocate the design of puncture needle path by the principal physician. Puncture pathology diagnosis is very difficult, the sample size is small, and the diagnosis relies on experts with rich experience in bone and soft tissue tumor pathology. The diagnosis of difficult pathology often requires discussion with bone and soft tissue oncologists, pathologists, and radiologists. In the Department of bone and soft tissue Oncology of our hospital, the correct rate of puncture biopsy diagnosis is over 90%, which has accumulated rich clinical experience. It is often used in the diagnosis of benign tumors, such as fibroma ossificans, aneurysmal bone cyst, osteoblastoma, giant cell tumor of bone, lipoma, schwannoma, etc., and malignant tumors, such as osteosarcoma, metastatic tumor, malignant fibrohistiocytosis, fibrosarcoma, synovial sarcoma, leiomyosarcoma, etc. The operation time is less than 20 minutes, the incision is about 0.3cm, can be carried out under local anesthesia, and has the advantages of low cost, less trauma, quick recovery, etc.
Open biopsy is usually carried out after the failure of puncture biopsy, and the incision is about 6-8cm. The wound is large and the recovery is slow, but more pathological tissues are collected, which is conducive to the comprehensive diagnosis of pathologists. Open biopsy also has many technical details, such as the incision design must be removed in a second operation, intraoperative tumorless operation, appropriate postoperative drainage, to prevent hematoma. Regrettably, after open biopsy is carried out in some primary hospitals, it is difficult for the second extensive limb salvage operation of tumor resection, so that patients lose the opportunity of limb salvage.