Structural features and advantages
Shape advantages
Half-moon design: Half-moon-shaped endplate processing tools have unique adaptability in spinal surgery. In some spinal segments, such as the intervertebral joints of the cervical and lumbar vertebrae, the half-moon shape can better fit the natural curve of the endplate. It can accurately contact the edge and concave part of the endplate, which is very effective for removing cartilage tissue, scar tissue, or hyperplasia on the surface of the endplate. This shape can perform delicate operations in a limited space when dealing with irregular endplates caused by disc degeneration, reducing damage to surrounding normal tissues. For example, in anterior cervical fusion surgery, half-moon-shaped tools can accurately clean along the front and side edges of the vertebral endplate, creating a flat and well-blooded bone surface for the implantation of the fusion device, while avoiding damage to important structures such as the vertebral artery and nerve roots.
Hollow rectangular design: The hollow rectangular design combines the characteristics of large-area processing and protection of internal structures. Its larger plane area can quickly process the central part of the endplate, improving surgical efficiency. At the same time, the hollow structure can avoid excessive compression and damage to the cancellous bone under the endplate to a certain extent, and protect the structural integrity of the trabecular bone. In posterior lumbar fusion surgery, when a large area of endplate needs to be processed, the hollow rectangular tool can cover and process multiple areas at one time, and then discharge the debris through the hollow part to reduce the residue in the surgical area, providing a good foundation for subsequent bone graft fusion.
Functional advantages
These endplate processing tools, whether half-moon or hollow rectangular, use appropriate materials and surface treatment processes to ensure that they have good cutting performance and durability when processing endplates. The cutting edge of the tool is carefully designed and polished to effectively scrape or cut the diseased tissue on the endplate without causing fracture or excessive damage to the endplate. In spinal fusion surgery, accurate endplate processing is crucial to promote bone fusion. Appropriate tools can increase the roughness of the endplate, increase the contact area and friction between the bone graft material and the endplate, and thus improve the success rate of fusion.
Application scenarios in spinal surgery
Application in cervical fusion surgery
In anterior cervical fusion surgery, the endplate of the cervical vertebral body is first processed using a half-moon endplate processing tool. The doctor introduces the tool into the surgical site through a minimally invasive incision and uses its shape advantage to carefully scrape away the cartilage tissue and degenerative annulus fibrosus remnants along the edge and depression of the endplate. This can make the endplate surface smoother, which is conducive to the stable implantation of the fusion device and the occurrence of bone fusion. At the same time, during the processing, due to the precision of the half-moon tool, damage to the surrounding blood vessels and nerve tissue can be avoided, improving the safety of the operation. For example, in common cervical fusion segments such as C4-C5 or C5-C6, using this tool to finely process the endplate, can provide a good foundation for subsequent fusion surgery and promote the stability and functional recovery of the patient's cervical spine after surgery.
Application in lumbar fusion surgery
In posterior lumbar fusion surgery, the hollow rectangular endplate processing tool plays an important role. After pedicle screw fixation, the endplate of the intervertebral space needs to be processed to prepare for the implantation of the fusion device and bone graft material. The hollow rectangular tool can process the central part of the endplate over a large area and quickly remove the cartilage and sclerosis layer on the endplate. Its hollow design can prevent excessive compression of the cancellous bone during the processing, maintain the structure of the trabeculae, and facilitate the growth of bone cells and bone fusion. For example, in the fusion surgery of lumbar segments such as L4-L5 or L5-S1, the use of this tool can efficiently complete the endplate processing work, provide an ideal bone bed for the implantation of the fusion device, improve the success rate of lumbar fusion surgery, relieve the patient's waist pain and improve the lumbar function.
Application of Thoracic Fusion Surgery
In thoracic fusion surgery, due to the relatively special anatomical structure of the thoracic spine, it is protected by the ribs and thorax around it, and the surgical operation space is relatively limited. The half-moon-shaped and hollow rectangular endplate processing tools can be selected according to the specific surgical site and needs. For example, when processing the lateral endplate of the thoracic vertebral body, the half-moon-shaped tool can flexibly enter and process the endplate pathological tissue in this area, while when processing the central part of the vertebral body, the hollow rectangular tool can play its advantage of large-area processing. Through precise endplate processing, good conditions are created for thoracic fusion surgery, which helps to correct thoracic deformity (such as thoracic fusion surgery in cases of scoliosis) or stabilize unstable segments caused by thoracic lesions, and improve the patient's thorax and spinal function.
Operation precautions and skills
Operation precautions
Before using the endplate processing tool, you should fully understand the spinal anatomical structure of the surgical site through imaging examinations (such as X-rays, CT, etc.), especially the morphology and lesions of the endplate, so as to select tools of appropriate shapes. During the operation, pay attention to controlling the operating force and direction of the tool to avoid endplate fractures or damage to surrounding blood vessels, nerves, and other important tissues due to excessive force. Due to the high precision requirements of spinal surgery, pay close attention to the surgical field of view under the endoscope during the operation to ensure that the tool is always operated within the visible range, and timely discover and deal with possible unexpected situations.
Operation skills
Operation skills of the half-moon tool: When using the half-moon endplate processing tool, insert the tool into the surgical site at an appropriate angle according to the curve of the endplate and the site of the lesion. Be gentle during the insertion process to avoid forcible insertion and damage to surrounding tissues. When processing the edge of the endplate, use the curved part of the tool to gently scrape or cut along the edge, paying attention to controlling the force so that the diseased tissue on the surface of the endplate is gradually removed while maintaining the integrity of the endplate. For the processing of the concave part, the tip of the tool can be carefully placed in the concave part for delicate operation.
Hollow rectangular tool operation tips: For the hollow rectangular endplate processing tool, first place it flat on the central part of the endplate, and adjust the position of the tool according to the size and shape of the endplate so that it can cover the area to be processed. Then, use the flat part of the tool to remove the cartilage and hardened layer on the endplate through appropriate pressure and reciprocating motion. During the operation, pay attention to the position of the hollow part to avoid it being blocked by bone chips. At the same time, adjust the operating force according to the hardness and degree of the endplate to ensure that the endplate can be effectively processed without causing excessive damage to it. After the operation is completed, clean up the bone chips in the hollow part in time to prepare for subsequent bone grafting and fusion device implantation.
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