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[Blocked from Release] L3 Anterior Lumbar Corpectomy and Fusion

Preoperative Patient Care
Operative Techniques
E

Preoperative Plan

1

Radiographic templating

2

Surgical walkthrough including desciption of basic anatomy, appropriate approach, and goals of therapeutic skills

3

Performs appropriate physical exam maneuvers under anesthesia

4

Description of potential complications and steps to avoid them

F

Room Preparation

1

Surgical Instrumentation

  • expandable cage
  • anterior fixation (plate most common)

2

Room setup and Equipment

  • radio-opaque operative table
  • fluoroscopy
  • MEP and SEPs

3

Patient Positioning

  • place MEP, SEP, and EMG leads prior to transfer to operating table
  • place Foley catheter
  • transfer to radio-opaque operating table and place in right lateral decubitus position
  • axillary roll was placed in the right axilla
  • use beanbag to keep body at 45 degrees from horizontal
  • flex hips and knee
  • place pillows between legs, pad common peroneal nerve
  • place tape over patient to keep him secure
  • Flexed the table at the costal pelvic junction,
G

Anterior Retroperitoneal Approach

1

Identify 11th rib and lateral border of rectus abdominis

  • draw oblique line connecting two dots.

2

Incise skin and subcutaneous fat

  • make incision from posterior half of 11th rib to lateral border of rectus abdominis

3

Ressect 11th and 12th rib

4

Expose aponeurosis of external oblique muscle

5

Divide external oblique in line with fibers

6

Divide internal oblique

  • in line with incision and perpendicular to muscle fibers

7

Divide transverus abdominis

  • in line with skin incision
H

Deep Dissection

1

Bluntly disect plane between retroperitoneal fat and psoas fascia

2

Retract peritoneal cavity medially

  • bring ureter with peritoneal cavity

3

Place Omni retractor

  • retract diaphram superiorly
  • ureter and kidney reflected away from the spine

4

Follow surface of psoas muscle to vertebral bodies

5

Identify disc space, insert needle, and take lateral radiograph to confirm level

6

Tie off segmental lumbar arteries of aorta of L2, L3, and L4

  • usually cut between silk sutures

7

Migrate aorta to contralateral side and away from plane of corpectomy

I

Perform L3 corpectomy

1

Perform L2/3 deskectomy

  • clear L2 inferior endplate and inspect to make sure it is structurally viable

2

Perform L4/5 diskectomy

  • clear L4 superior endplate and inspect to make sure it is structurally viable

3

Perform L3 corpectomy

  • perform from anterolateral approach
  • leave anterior L3 cortext to prevent anterior kickout of cage
  • pay attention to integrity of posterior cortex
J

Decompress thecal sac (optional)

1

Identify foramina of L2- L3 and L4-5 and use them as a landmark

  • care was taken to protect the nerve roots exiting the spine at each level
K

Insert cage

1

Identify lordotic angle of superior and inferior endplate

  • this is critical to prevent anterior kickout due to lordosis of lumbar spine
  • typically use a 15 deg lordotic inferiorly and a 5 deg lordotic end plate superiorly.

2

Assemble expandle cage or cut harms cage

  • change will typically be between 30 and 40mm

3

Place autograft in cage and insert

4

Ensure compression/distraction fit

5

Bone graft was packed anteriorly and laterally

6

Obtain AP and lateral radiograph to confirm satisfactory position

N

Wound Closure

1

Ensure appropriate hemostasis

2

Remove Omni retractors

  • The abdominal contents were placed back into their normal anatomic position.

3

Close muscular layers

  • muscular layers of of transverus abdominis, internal oblique, and external oblique was then closed in layers with running #1 PDS suture.

4

The subcutaneous tissue was closed with a running #3-0 Vicryl suture.

  • describe step

5

The skin was closed with subcuticular #3-0 Monocryl suture.

6

Steri-Strips were applied. Sterile dressing was applied.

Postoperative Patient Care
Private Note