minimally invasive spine surgery › wp-content › uploads › 2016 › 07 › 36... ·...
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Minimally Invasive Spine SurgeryJOHN M SMALL MD
FLORIDA ORTHOPEDIC INSTITUTE
ASSOCIATE PROFESSOR USF DEPT OF ORTHOPEDIC SURGERY
ORTHOPEDICS FOR THE PRIMARY CARE PRACTITIONER AND REHABILITATIONTHERAPIST
JULY 24, 2016
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Trends In Spine Surgery
Motion Preservation
Biologics and Biomaterials
Less / Minimally Invasive
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Primary Goals of Spine Surgery
Adequate Decompression
Direct / Indirect
Stabilize Spine
Maintain Spinal Balance
Improve / Speed Recovery
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Traditional Surgical Approaches
PLF TLIF ALF Thoracotomy
Back Front Back Side
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Surgical Treatment/Approach
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Spine Surgery Procedures: Decompression
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Open Laminectomy
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Open Fusion
Types of fusion: Posterior / Posterior
lateral fusion (PLF)
Posterior lumbar interbody fusion (PLIF)
Transforaminal lumbar interbody fusion (TLIF)
Anterior lumbar interbody fusion (ALIF)
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Purpose of Fusion
Stop the motion at a painful vertebral segment Decrease pain
Protect the spinal cord/ nerves
Interbody Implants Restore Disc Height-
Indirect Decompression
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An MIS procedure is one that by virtue of the extent and means of surgical technique results in less collateral tissue damage, resulting in measurable decrease in morbidity and more rapid functional recovery than traditional exposures, without differentiation in the intended surgical goal
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MISS
Conditions Treated Using MIS Procedures Herniated Disc Degenerative Disc
Disease Lumbar spinal stenosis
Spinal deformities scoliosis
Spinal infections
Spinal instability
Vertebral compression fractures
Spinal Tumors
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MISS Advantages:
Smaller incisions
few smaller scars instead of one larger scar
Less tissue dissection
Less damage to surrounding muscles
Potential for less blood loss, quicker healing, shorter hospital stay, and less pain
Quicker return to daily activities
Marketing
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MISS Disadvantages:
Inadequate treatment/ decompression
Potential for prolonged operative time
Increased radiation exposure
Not appropriate for every case
Less surface area of bone exposed for fusion cases “Spot Welding”
May be difficult to repair a spinal fluid leak if one occurs
Learning curve for surgeons
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“Minimally Invasive Proceedures”
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Chronology of Spine Surgery
Modern MISS- started with MED System and Kyphoplasty
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MIS Procedures
Micro Endosocopy tubular retractors
Minimal disruption to a patient’s normal anatomy - i.e. Muscles, Ligaments, Bone Structures
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Disc Herniation
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Tubular Retactors 14mm, 16mm or
18mm tubes are used for the working space.
Lengths range from 3cm to 9cm
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MIS discectomy
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MISS
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Minimally Invasive Fusion
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MIS TLIF
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Percutaneous Fixation
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MIS TLIF
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MISS- Pedicle Screws Muscle Splitting
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Lateral Access Surgery (XLIF)
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Extreme Lateral Interbody Fusion (XLIF)
JR
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Adult Idiopathic Scoliosis-Case
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Intra Op Pictures XLIF
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Intra Operative X-rays
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Increased Disc Height
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Guide Wires
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Multilevel XLIF
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Intra Op Fluoro X-Rays
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Post Op Fluoro X-Rays
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Image Guided Spine Surgery
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Robotic Guidance Applications in Spine Surgery
C1 to Sacrum • Spinal fixation
• Pedicle screws• Transfacet, translaminar-
facet screws• Sacroiliac screws
• Spinal deformities • Scoliosis PSF, osteotomies
• Cement augmentations• Kyphoplasty and vertebroplasty
• Oncological applications• Biopsies, tumor resections
• Revisions
Posterior Surgical Approaches
• Open• MIS• Percutaneous
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CT-based 3D Planning
Software
• CT-based 3D planning
• Guided instrumentation
• 1 mm accuracyWorkstation
Guidance Unit
Robotic Guidance
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Spine Surgery with Robotic Guidance
Step 1:Preoperative Plan
Step 4:Operate
Step 2:Mount
Step 3:3D Sync
Preoperative blueprint of the ideal surgeryis created in a virtual 3D environment
How It Works
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Pre Op Planning
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Spine Surgery with Robotic Guidance
Step 1:Preoperative plan
Step 4:Operate
Step 2:Mount
Step 3:3D Sync
Rigid attachment to the patient assures maximum surgical accuracy throughout the procedure
How It Works
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Step 4:Operate
Step 2:Mount
Step 3:3D Sync
How It Works
Two fluoroscopy images are automatically synchronized with the CT-based surgical blueprint (independent of anatomy)
Step 1:Preoperative plan
Spine Surgery with Robotic Guidance
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Spine Surgery with Robotic Guidance
Step 4:Operate
Step 2:Mount
Step 3:3D Sync
Step 1:Preoperative plan
Tools and implants are guided to the planned trajectory with 1 mm accuracy
How It Works
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Other Innovations for MISS
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Conclusion
MISS here to stay future
Techniques continue to improve Image guidance and Robotics appear to
improve accuracy
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Thank You
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Preop Scoliosis Xrays- 75 degrees kyphosis T6-L4
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Surgery
Subtraction Osteotomy L3 TLIF / SPO L4/5 and L5/S1 Posterior Fusion with instrumentation T12-S1 B iliac screws
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Ioflex Foraminotomy
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