UBE surgical tools-UBE square bone knife

Structural features and advantages
Advantages of the unilateral 6MM design
Precise cutting ability: The unilateral 6MM design enables the bone knife to perform relatively precise bone cutting operations during UBE surgery. In spinal surgery, for some situations where a small amount of bone needs to be accurately removed, such as trimming the bone around the intervertebral foramen when dealing with foraminal stenosis, the 6MM width can accurately control the cutting range to avoid excessive bone removal that affects the stability of the spine. For example, in cervical foraminal decompression surgery, the bone knife can accurately remove a small amount of bone hyperplasia that compresses the nerve root without causing excessive damage to the surrounding normal pedicles and vertebral structures.
Good passability: The 6MM size ensures that the bone knife can smoothly pass through the UBE surgical channel to the surgical site. In surgeries on different segments such as the cervical, thoracic and lumbar spine, the surgical channel is relatively narrow. This size design can reach the target bone position without causing excessive squeezing of the tissue around the channel. Compared with larger-sized bone knives, it is easier to operate in a limited space, reducing the risk of damage to surrounding tissues during surgery.
Square design highlights
Multi-angle cutting adaptability: The square shape makes the bone knife have better multi-angle cutting adaptability during surgery. When dealing with complex anatomical structures of the spine, such as different angles of the lamina, irregular shapes of the vertebral edges, etc., the four corners and four sides of the square bone knife can be used as cutting surfaces, and the cutting angle can be flexibly adjusted according to surgical needs. For example, in lumbar lamina decompression surgery, when part of the lamina needs to be removed to expand the volume of the spinal canal, the square bone knife can be rotated and adjusted to more comprehensively remove the lamina tissue, which improves the efficiency of the operation and the integrity of the bone resection compared to the traditional shape of the bone knife.
Stability and controllability: The square design provides better stability and controllability during the operation. When the doctor holds the bone knife for cutting, the square structure makes it easier to grasp the balance and direction, reducing the inaccurate cutting caused by the shaking of the instrument. Especially when fine bone carving or trimming is required, the square bone knife can better respond to the doctor's operating instructions, making the operation more precise and safe.
Application scenarios in UBE surgery
Application of spinal canal decompression surgery
In UBE surgery for cervical spinal stenosis or lumbar spinal stenosis, the square single-sided 6MM bone knife can be used to accurately remove bone hyperplasia and hypertrophic yellow ligament attachment in the spinal canal. After entering the spinal canal through the UBE surgical channel, the bone knife can use its precise size and multi-angle cutting ability to carefully remove the bone that compresses the spinal cord and nerve roots. For example, in posterior cervical spinal canal decompression surgery, for bone hyperplasia on the posterior wall of the spinal canal in segments such as C4-C5 or C5-C6, the bone knife can accurately perform layer-by-layer resection while avoiding damage to the spinal cord and nerve roots, effectively expanding the volume of the spinal canal and relieving the patient's nerve compression symptoms.
Assisted spinal fusion surgery
In spinal fusion surgery, the bone knife can be used to process the bone surface of the fusion site. Before preparing to implant the fusion device, the endplate or facet joint surface of the vertebral body needs to be processed to make it more conducive to the implantation of the fusion device and the occurrence of bone fusion. The square bone knife can accurately remove the surface cartilage tissue and part of the bone according to the specific shape and requirements of the fusion site, creating a rough and well-blooded bone surface. For example, in posterior lumbar fusion surgery, for the facet joints of segments such as L4-L5 or L5-S1, the bone knife can accurately trim the joint surface and improve the success rate of fusion.
Intervertebral disc surgery assistance
In UBE surgery for lumbar disc herniation or cervical disc herniation, when it is necessary to deal with bone hyperplasia at the edge of the intervertebral disc or remove part of the bone to better expose the intervertebral disc space, the square single-sided 6MM bone knife can play a role. It can accurately remove the hyperplastic bone along the edge of the intervertebral disc, providing a better field of view and operating space for subsequent nucleus pulposus removal or other intervertebral disc processing operations. For example, in L4-L5 lumbar disc herniation surgery, the bone knife can clean up the bone hyperplasia at the front edge of the intervertebral disc, making it easier for surgical instruments to enter the intervertebral disc space, improving surgical efficiency and safety.
Operation precautions and skills
Operation precautions
The importance of visual operation: UBE surgery is highly dependent on endoscopic visualization. Before using the square bone knife, it is necessary to ensure that the endoscopic field of view is clear and accurately judge the positional relationship between the bone knife and the surrounding bone, nerves, blood vessels and other tissues. During the entire operation, continue to pay attention to the endoscopic image to prevent the bone knife from accidentally damaging important tissues during operation.
Depth and force control: When cutting bone, the cutting depth and cutting force of the bone knife must be strictly controlled. Due to the dense distribution of nerves and blood vessels around the spine, excessive cutting or excessive force may cause serious nerve damage or heavy bleeding. Doctors need to carefully adjust the operating parameters of the bone knife based on preoperative imaging data and intraoperative endoscopic observations, combined with bone hardness and surgical experience.
Maintenance and cleaning of instruments: Before surgery, check whether the edge of the bone knife is sharp and whether the square structure is complete to ensure the normal use of the instrument. After surgery, the bone knife must be properly cleaned and disinfected to avoid surgical infection and instrument damage due to residual tissue or bacteria in the instrument.
Operation skills
Incision skills: When starting to cut bone, gently place the single-sided edge of the bone knife on the target bone surface, and use appropriate cutting angles and pressure according to the hardness of the bone and surgical requirements. For harder bones, you can first make a tentative cut at a smaller angle and pressure, and then gradually adjust the angle and increase the pressure after finding a suitable entry point. For example, when dealing with bone hyperplasia around the intervertebral foramen of the cervical spine, it is easier to control the direction and depth of the bone knife by starting to cut from the thinner edge of the bone hyperplasia.
Multi-angle cutting skills: Utilize the multi-angle cutting characteristics of the square bone knife to flexibly adjust the cutting angle of the bone knife according to the shape of the bone and the anatomical structure of the surgical site during the operation. For example, when removing a part of the lumbar vertebral lamina, you can first use one edge of the bone knife for straight cutting. When encountering a corner or irregular part of the lamina, by rotating the bone knife, use another edge or corner to continue cutting to achieve a more complete and accurate bone removal effect. During the entire operation, it is necessary to combine the real-time observation of the endoscope to continuously optimize the cutting angle and method to ensure the smooth progress of the operation.