UBE surgical tools-UBE curved bone knife

Structural features and advantages
Size and shape advantages
6MM diameter: The 6MM size makes the bone knife more maneuverable in spinal surgery. It can smoothly pass through the UBE surgical channel to enter the spinal surgical area while ensuring sufficient strength. In cervical, thoracic and lumbar surgeries, this size can effectively treat the target bone without causing excessive tissue compression. For example, when dealing with bone hyperplasia at the edge of the cervical vertebral body, a 6MM bone knife can accurately reach the lesion site.
Straight design: The straight bone knife shape is conducive to precise linear cutting or chiseling operations in spinal surgery. When linear processing of bone structures such as vertebral plates and vertebral bodies is required, such as linear cutting of vertebral plates in lamina decompression surgery, the straight bone knife can better control the cutting direction and ensure the accuracy of the surgical operation. Compared with curved bone knives, straight bone knives are more handy when dealing with some situations that require precise linear operations.
Half-slot design: The half-slot design is an important feature of this bone knife. This design allows bone chips to be discharged when cutting bone, avoiding the accumulation of bone chips in the surgical area. In spinal surgery, especially during long-term bone processing, the accumulation of bone chips may affect the surgical field of view and increase the risk of infection. The semi-slotted bone knife can discharge bone chips in time to keep the surgical field clear. For example, during vertebral fusion surgery, bone chips can be discharged through the slot when the bone knife is trimming the vertebral endplate.
Application scenarios in spinal surgery
Application of laminar decompression surgery
In laminar decompression surgery for lumbar spinal stenosis or cervical spinal stenosis, the 6MM straight semi-slotted bone knife can be used to accurately remove part of the lamina. After entering the spinal canal through the UBE surgical channel, the doctor can use the straight shape of the bone knife to remove the lamina in a straight line along the predetermined decompression area. The semi-slotted design allows bone chips to be discharged smoothly during the cutting of the lamina bone without interfering with the surgical field of view. For example, in L4-L5 lumbar spinal stenosis surgery, the bone knife can accurately remove the outer layer of bone of the vertebral plate, expand the volume of the spinal canal, and reduce the pressure on the cauda equina and nerve roots.
Application of vertebral bone processing
Preparation for spinal fusion surgery: In spinal fusion surgery, the bone knife can be used to process the end plates of the vertebral body. Before preparing to implant the fusion device, the vertebral end plates need to be trimmed to make their surface flat and have good blood supply. The 6MM straight semi-slotted bone knife can scrape the cartilage tissue and part of the bone along the surface of the vertebral end plates. The semi-slot is conducive to the discharge of bone chips, making the end plate processing cleaner and more efficient. For example, in anterior cervical fusion surgery, the bone knife can accurately process the end plates between vertebrae, creating favorable conditions for the implantation of the fusion device and improving the success rate of fusion.
Bone hyperplasia processing: For bone hyperplasia at the edge of the vertebral body, such as the anterior edge of the cervical vertebral body or the lateral edge of the lumbar vertebral body, the bone knife can play its straight cutting advantage. The bone knife is guided to the bone hyperplasia site through the UBE channel, and the hyperplastic bone is gradually removed. In this process, the semi-slotted design can prevent bone chips from remaining and ensure the smooth progress of the operation. This treatment can improve the physiological curvature of the spine and reduce the pressure on surrounding tissues (such as blood vessels and nerves) caused by bone hyperplasia.
Application of fracture surgery
In the surgical treatment of spinal fractures, the bone knife can be used for fracture reduction and fracture fragment trimming. For some fracture fragments with less severe displacement, the 6MM straight bone knife can reach the fracture site through the UBE channel to help pry the fracture fragments back to the original position. After the fracture fragment is reduced, if the fracture end is not flat, the bone knife can also trim the fracture end. The semi-slotted design can discharge the bone chips generated by trimming in this process, keep the surgical field clear, and create good conditions for subsequent fixation and healing. For example, in thoracic vertebrae fracture surgery, the bone knife can assist doctors in restoring the fracture fragments to their normal anatomical position and cleaning the broken bone at the fracture end.
Operation precautions and skills
Operation precautions
Visual operation requirements: UBE surgery relies on endoscopic visualization. Before using the bone knife, the endoscopic field of view must be clear. Only by clearly seeing the relationship between the bone knife and the surrounding tissues such as bone, nerves, and blood vessels can safe and effective operations be performed. During the entire operation, always pay attention to the endoscopic image to prevent the bone knife from accidentally injuring important tissues.
Strict depth control: When cutting bone, the cutting depth of the bone knife must be strictly controlled. Because there are important structures such as the spinal cord and nerve roots around the spine, excessive cutting may cause serious nerve damage. Doctors need to carefully control the depth of the bone knife based on preoperative imaging data and intraoperative endoscopic observations, combined with their own experience.
Instrument maintenance and inspection: Before surgery, check whether the edge of the bone knife is sharp and whether the semi-open groove is unobstructed. After surgery, the bone knife must be properly cleaned and maintained to ensure good performance the next time it is used.
Operation skills
Cutting start skills: When starting to cut bone, gently place the edge of the bone knife on the target bone surface, and use appropriate pressure according to the hardness of the bone and surgical requirements. For harder bones, you can use less pressure first, and then gradually increase the pressure after finding a suitable entry point. For example, when dealing with the lamina, it is easier to control the direction and depth of the bone knife by starting from the thinner part of the edge of the lamina.
Tips for controlling the cutting direction: Use the straight design of the bone knife to keep the direction of the bone knife stable during the cutting process. The direction of the bone knife can be adjusted through endoscopic observation and hand feel. If the cutting direction needs to be changed, it should be done slowly and carefully to avoid sudden turns that may cause irregular bone fractures or damage surrounding tissues. During the cutting process, the inclination angle of the bone knife should be reasonably adjusted in combination with the position of the semi-slot so that the bone chips can be discharged smoothly.