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1.
Patient positioning
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I.
After anesthesia induction, bilateral stability and range of motion is assess.
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II.
Place a well-padded high-thigh nonsterile tourniquet.
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III.
Shift the patient closer to the leg post to produce a proper valgus when needed.
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IV.
After sterile drape, an assistant should drop the end of the bed allowing a 90° flexion.
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2.
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3.
Graft harvest
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I.
With the patient's knee flexed 90°, perform a 3-cm long incision over the pes anserinus.
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II.
To protect the medial collateral ligament, elevate the sartorial fascia from proximal to distal with a blunt object.
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III.
Longitudinally incise the sartorial fascia and expose the gracilis and semitendinous tendons.
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IV.
Release the deep portion of the sartorial fascia with a blunt right-angle clamp.
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V.
Whip stitch the ends of both tendons.
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VI.
With a striper harvest the tendons from distal to proximal.
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4.
Graft preparation
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I.
Remove muscle fibers and unstable portions from the grafts.
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II.
Measure the length of each tendon to plan the correct graft configuration.
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III.
Simulate the graft configuration to determine the appropriate length and diameter.
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5.
Bone marrow cell harvest
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I.
Insert a 14-gauge trocar through the anteromedial portal.
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II.
Introduce the trocar 30 mm deep into the femoral notch apex.
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III.
Turn off the arthroscopic fluid.
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IV.
Remove the sty1et.
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V.
Discard the first milliliter of blood.
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VI.
With a 30-mL syringe preloaded with a heparinized solution slowly aspirate 60 mL of bone marrow.
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6.
Biological augmentation -
I.
Under direct arthroscopic vision through the anteromedial portal, apply platelet-rich plasma at 7% to the tibial tunnel, the femoral tunnel, and the graft.
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