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  • orthopaedic surgery

Unilateral invasion bilateral decompression（Murayama Medical Center）

implementation facility
  • Independent Administrative Institution National Hospital Organization　Murayama Medical Center
Facility Details
program name
Unilateral invasion bilateral decompression（Murayama Medical Center）
genre
  • medical treatment：arthritis(joint pain)
  • orthopaedic surgery：spine
program details
This is a muscle-friendly posterior lumbar decompression. Using an operating microscope, the surgeon decompresses only the lesion while preserving the muscles, joints, and spinous processes on one side. Although technically very advanced, it provides a patient-friendly procedure with minimal blood loss and mild postoperative pain. It is intended for conditions where numbness, pain, and paralysis appear as a result of nerve compression in the lumbar spine. Lumbar disc herniation and lumbar spinal canal stenosis are the targets.

Depending on the extent of the lesion, a 4 to 8 cm longitudinal incision is made behind the lumbar region under general anesthesia, and the muscle on one side of the spinous process (bone in the middle of the back) is debrided and expanded. Using a surgical microscope, the vertebral arch (bone behind the lumbar spine) from one side to the contralateral side is shaved and nerve compression is circumferentially decompressed. This completely preserves the continuity of the median lumbar spine and contralateral muscles, and prevents postoperative deformity of the lumbar spine. The surgery takes one to two hours, with a bleeding rate of about 10 ml. Patients are kept in bed for the first two days after surgery, and can walk from the third day. Patients are discharged from the hospital after the wound settles at 10 days postoperatively. The average number of surgeries performed during the last three years was 314 per year. Lumbar spine surgery cannot completely eliminate symptoms. Numbness, pain, and other paralysis can remain. Although rare, it is possible for paralysis to worsen. Postoperative infection occurs in a few patients. In those cases, as reoperation under general anesthesia is required, hospital stay is prolonged. In 2025, the rate of infection was 2.6%.
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the facilities able to have this program
  • medical treatment
  • orthopaedic surgery

Independent Administrative Institution National Hospital Organization　Murayama Medical Center

The hospital specialized in spine-spinal cord surgery with 14spine surgeons. Special emphasis is placed on minimallly invasive surgeries such as skip laminoplasty, and CBT methods. We provide patient-friendly surgeries that minimize muscle damage and post-operative pain.
country
  • Kanto
other program on this facility
  • medical treatment
  • orthopaedic surgery

skip laminoplasty（Murayama Medical Center）

This procedure is a muscle-preserving minimally invasive posterior cervical decompression surgery.
A surgical microscope is used to minimize the size of the incision and the extent of the surgical field, allowing decompression to be performed only at the affected area.

Although this technique requires a very high level of surgical expertise, it involves minimal bleeding and mild postoperative pain, providing a patient-friendly surgical treatment.

This surgery is indicated for conditions in which nerves in the cervical spine are compressed, leading to symptoms such as numbness, pain, or paralysis.

Typical conditions include:

Cervical disc herniation

Cervical spondylosis

Ossification of the posterior longitudinal ligament (OPLL)
implementation facility
  • Independent Administrative Institution National Hospital Organization　Murayama Medical Center
  • medical treatment
  • orthopaedic surgery

CBTmethod（cortical bone trajectory)（Murayama Medical Center）

This is a muscle-friendly posterior lumbar fusion technique. Using intraoperative fluoroscopy, screws are inserted into the cortical bone (the hard part of the bone) from the inside to the outside and from the caudal to the head. Although technically very advanced, it provides a patient-friendly procedure with minimal blood loss and mild postoperative pain.
This is for conditions where there is instability of the lumbar spine and numbness, pain, and paralysis have appeared. Lumbar disc herniation, lumbar spinal canal stenosis with instability, and lumbar spondylolisthesis are the targets.
implementation facility
  • Independent Administrative Institution National Hospital Organization　Murayama Medical Center
  • medical treatment
  • orthopaedic surgery

Unilateral invasion bilateral decompression（Murayama Medical Center）

This is a muscle-friendly posterior lumbar decompression. Using an operating microscope, the surgeon decompresses only the lesion while preserving the muscles, joints, and spinous processes on one side. Although technically very advanced, it provides a patient-friendly procedure with minimal blood loss and mild postoperative pain. It is intended for conditions where numbness, pain, and paralysis appear as a result of nerve compression in the lumbar spine. Lumbar disc herniation and lumbar spinal canal stenosis are the targets.
implementation facility
  • Independent Administrative Institution National Hospital Organization　Murayama Medical Center