Clinical Evaluation of Orion Lamina Cover in Patients Undergoing Lumbar Laminectomy With Instrumented Fusion

Not Applicable

Completed

Conditions: Degenerative Lumbar Spinal Stenosis
Degenerative Spondylolisthesis
Scoliosis
Spinal Fracture
Spinal Stenosis

Brief Summary: Laminectomy with internal fixation and osseofusion is a common surgery for treating degenerative spinal diseases. It removes excessive bone spurs and removes the lamina for decompression to relieve nerve compression, and then utilizes a spinal fixation system to stabilize the structure to relieve lower limb pain, paralysis, and other symptoms. However, the spinal cord that lacks lamina coverage after surgery is often compressed by scar tissue formation and hematoma, leading to postoperative back and lower limb pain. Therefore, this trial is divided into two groups, comparing the use of the cross connector of the ORION spinal system - the spinal lamina cover and the general spinal fixation system (without lamina cover). For participants undergoing laminectomy with internal fixation and osseofusion, after utilizing the spinal lamina cover of the ORION spinal system, whether the nerve compression caused by postoperative scar tissue formation and hematoma can be effectively reduced, and the pain in the back and lower limbs can be improved.

Recruitment & Eligibility

Inclusion Criteria

Gender and age: females and males are at least 20 years old
Who with degenerative lumbar spondylolisthesis in one or two consecutive segments from lumbar vertebra L1 to sacral vertebra S1, and have objective evidence of back pain and numbness radiating to the lower limbs.
Clinical symptoms of degenerative lumbar spondylolisthesis, accompanied by objective symptoms of neurological deficit; spinal stenosis, neurogenic claudication or bilateral radiating pain.
Have received at least 3 months of non-surgical treatment without effectiveness.
Radiographic examination was consistent with clinical symptoms of degenerative spondylolisthesis or spinal stenosis.
After diagnosis who needs laminectomy with internal fixation and osseofusion
Able and willing to sign the consent form and answer the questionnaire.

Exclusion Criteria

Already had lumbar surgery at the same lumbar vertebra
Physically health not well
Probably pregnant
Who suffering from malignant tumors or infections
below 20 years old
Unable and unwilling to answer the questionnaire and return to the hospital for treatment
Unable to undergo MRI examination due to any reason, such as having a cardiac rhythm regulator, ferromagnetic implants, or claustrophobia.

Arm && Interventions

Group	Intervention	Description
LMC group	ORION spinal lamina cover	General spinal system with ORION spinal lamina cover
Control group	Sham	General spinal system

Primary Outcome Measures

Name	Time	Method
Visual Analogue Scale (VAS)	Pre-surgery; one month after surgery; three months after surgery; six months after surgery	To measure the pain and numb of the participants' back and limbs
Magnetic Resonance Imaging (MRI)	Six months after surgery	To observe the recovery of the participants' spine

Secondary Outcome Measures

Name	Time	Method
Oswestry Disability Index (ODI)	Pre-surgery; one month after surgery; three months after surgery; six months after surgery	To evaluate the functional disability of the participants' limbs
Sort Form-12 Health Survey (SF-12)	Pre-surgery; one month after surgery; three months after surgery; six months after surgery	To evaluate the physical health of the participants

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