Two dimensional automatic active shape model of degenerative disc repaired by low-intensity laser

Area of Science:

• Biomedical Engineering
• Regenerative Medicine
• Orthopedics

Background:

• Intervertebral disc degeneration is a primary cause of low back pain.
• Effective long-term treatments are crucial for managing disc degeneration.
• Novel therapeutic approaches are needed to promote disc repair.

Purpose of the Study:

• To evaluate the efficacy of low-intensity laser irradiation in repairing degenerative intervertebral discs.
• To assess the performance of a two-dimensional automatic active shape model (2D-AASM) in analyzing disc degeneration.

Main Methods:

• Utilized a two-dimensional automatic active shape model (2D-AASM) for intervertebral disc segmentation.
• Employed low-intensity laser irradiation on a degenerative intervertebral disc model in Bama miniature pigs.
• Analyzed disc structure and signal intensity using MRI and HE staining.

Main Results:

• The 2D-AASM method demonstrated improved accuracy in intervertebral disc segmentation.
• MRI revealed decreased signal intensity in the degenerated group compared to the laser-treated group.
• Histological analysis (HE staining) showed structural restoration in the laser-treated group.

Conclusions:

• Low-intensity laser irradiation offers a protective effect and promotes the repair of degenerative intervertebral discs.
• The 2D-AASM is an effective tool for enhancing the accuracy of intervertebral disc segmentation in degeneration studies.