Crenel Lateral Interbody Fusion Combined With Lateral Plate Fixation for LSS Combined With Lumbar Instability

Lumbar Spinal Stenosis Clinical Trial

Official title:

Efficacy of Crenel Lateral Interbody Fusion Combined With Lateral Plate Fixation Versus Transforaminal Lumber Interbody Fusion for Lumbar Spinal Stenosis Combined With Lumbar Instability

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT06058143
• Other study ID #: Mars515
• Status: Not yet recruiting
• Phase: N/A
• Start date: November 2023
• Est. completion date: November 2026

Study information

• Verified date: September 2023
• Source: Second Affiliated Hospital, School of Medicine, Zhejiang University
• Contact: Zhan Wang, PhD
• Phone: -8618758586092
• Email: wangzhanhz[@]zju.edu.cn
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

At present, interbody fusion is the mainstream treatment for patients with lumbar spinal stenosis (LSS) and lumbar instability. However, the choice of interbody fusion for LSS patients with lumbar instability remains controversial. Recently, we developed crenel lateral interbody fusion combined with lateral plate fixation(CLIF - LP) for patients with LSS and lumbar instability. This surgical method has many advantages and showed good results for patients with LSS and lumbar instability. Therefore, we propose the following hypothesis: The clinical and imaging efficacy of CLIF-LP in the treatment of LSS patients with lumbar instability is not inferior to that of traditional transforaminal lumber interbody fusion (TLIF).

Description:

At present, interbody fusion is the mainstream treatment for patients with lumbar spinal stenosis (LSS) and lumbar instability. However, the choice of interbody fusion for LSS patients with lumbar instability remains controversial. Recently, we developed crenel lateral interbody fusion combined with lateral plate fixation(CLIF - LP) for patients with LSS and lumbar instability. This surgical method has the advantages of direct view operation, "safe" psoas major approach, application of modified retractor, and lateral plate reinforcement, which not only significantly improves the postoperative lumbar function and nerve function of patients with LSS and lumbar instability, but also significantly reduces related complications, accelerates rehabilitation, and reduces the medical cost of patients.

Therefore, we propose the following hypothesis: The clinical and imaging efficacy of CLIF-LP in the treatment of LSS patients with lumbar instability is not inferior to that of traditional transforaminal lumber interbody fusion (TLIF).

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 98
• Est. completion date: November 2026
• Est. primary completion date: November 2026
• Accepts healthy volunteers: No
• Gender: All
• Age group: 50 Years to 80 Years

Eligibility

Inclusion Criteria:

1. Age 50-80 years old

2. Patients diagnosed with clinical symptoms of lumbar spinal stenosis, neurogenic intermittent claudication, the patient's walking ability is highly limited, and the quality of life is severely reduced

3. Imaging diagnosis of 1-2 LSS patients, consistent with clinical symptoms

4. Lumbar spine instability can be considered if one of the following three criteria is met: ? mechanical back pain with severe (VAS > 7) (pain aggravates with weight bearing). Radiographs of lumbar hyperextension and flexion show a slip of at least 3mm between the two vertebrae, or a rotation Angle of 11°. ? Degenerative slip

5. Formal conservative treatment is ineffective for more than 3 months

6. No history of lumbar surgery

7. American College of Physicians ASA Grade I or II

8. Subjects voluntarily sign informed consent as subjects

Exclusion Criteria:

1. In patients with significant symptoms of lumbar radiculopathy, the pain from postural changes cannot be relieved

2. Bone stenosis, including developmental lumbar spinal stenosis

3. Free nucleus pulposus tissue into the spinal canal or cause spinal canal compression of the small joint cyst

4. Patients with hypertrophy of the yellow ligament or small joint cyst as the main pressure

5. Intervertebral space or posterior facet joints have fused

6. Infectious, traumatic and neoplastic diseases of the lumbar spine

7. Patients who are unable to undergo MRI

8. Some medical conditions, such as metabolic bone disease, autoimmune disease, poliomyelitis sequelae, osteoporosis, history of poor bone healing, and long-term oral steroids, were determined by the investigators to be unsuitable for inclusion in the study

9. Patients with evidence of neurological disorders (such as peripheral neuropathy), neuromuscular disorders (such as multiple sclerosis, Parkinson's disease, etc.), or systemic diseases (such as inflammatory arthritis) that affect bodily function

10. The patient has participated in other clinical trials in the past 3 months

11. Patients with poor adherence, judged by the researchers to be unable to complete the trial according to the study plan, such as schizophrenia and dementia, did not provide consent to volunteer to participate in the clinical study

Related Conditions & MeSH terms

• Constriction, Pathologic
• Lumbar Instability
• Lumbar Spinal Stenosis
• Spinal Stenosis

Intervention

Procedure:
• CLIF-LP
CLIF-LP surgery method was applied
• TLIF
TLIF surgery method was applied

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Second Affiliated Hospital, School of Medicine, Zhejiang University

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Oswestry Disability index (ODI)	Lumbar function was assessed by the Oswestry Disability index (ODI) at 24 months after surgery. ODI includes 10 items, including waist and leg pain, personal life care, lifting heavy objects, walking, sitting, standing, sleeping, sexual life, social life, and whether you can travel freely. The total score is 50 points, and the lower the score, the better the function of the lumbar spine.	24 months after surgery
Secondary	Visual analogue scale(VAS)	Visual analogue scale (VAS) was used for pain scores, and mild pain was 0-3 points, which was tolerable; Moderate pain is 4 ~ 6 points, strong pain affects rest, but can be tolerated; Severe pain is a score of 7 to 10, and the patient's pain is intensified and unbearable.	1 month, 3 months, 6 months, 12 months and 24 months after surgery
Secondary	Japanese Orthopaedic Association (JOA)	The JOA lumbar spine score included four aspects: subjective symptoms, clinical signs, daily activities and bladder function. The highest JOA score was 29 and the lowest was 0. The lower the score was, the more severe the symptoms and the more obvious the dysfunction.	1 month, 3 months, 6 months, 12 months and 24 months after surgery
Secondary	EuroQoL-5D-5L	This scale is a multidimensional measure of health-related quality of life, and it is also the most widely used universal utility scale. EQ-5D-5L consists of five dimensions, namely mobility, self-care, daily activities, pain or discomfort, anxiety or depression, each area is rated on a five-point scale (i.e., no problem, mild problem, moderate problem, severe problem, extreme problem), with higher scores indicating worse conditions.	1 month, 3 months, 6 months, 12 months and 24 months after surgery