Updated: 10/18/2016

Extensor Mechanism Repair(Patellar Tendon)

Preoperative Patient Care

A

Outpatient Evaluation and Management

1

Obtain focused history and performs focused exam

  • concomitant and associated orthopaedic injuries
  • differential diagnosis and physical exam tests

2

Interprets required diagnostic studies

  • radiographs
  • AP
  • lateral
  • look for patella alta
  • oblique
  • merchant view

3

Makes informed decision to proceed with operative treatment

  • documents failure of nonoperative management
  • describes accepted indications and contraindications for surgical intervention

4

Provides postoperative management and rehabilitation

  • postop: 2-3 week postoperative visit
  • wound check
  • diagnose and manage early complications
  • start passive range of motion at 4 weeks
  • start active range of motion at 8 weeks
B

Advanced Evaluation and Management

1

Recognizes concomitant associated injuries

2

Appropriately orders and interprets advanced imaging studies

3

Provides complex non-operative treatment

4

Modifies and adjusts post-operative treatment plan as needed

C

Preoperative H & P

1

Perform basic medical and orthopaedic history and physical

  • identify medical co-morbidities that might impact surgical treatment

2

Ensure all studies are required to proceed with surgical intervention

  • radiographs
  • AP
  • lateral
  • oblique
  • merchant view

3

Perform operative consent

  • describe complications of surgery including
  • quadriceps atrophy
  • quadriceps weakness
  • extensor lag
  • anterior knee pain

Operative Techniques

E

Preoperative Plan

1

Assess location of patella tendon injury

  • use physical exam and MRI if available

2

Execute surgical walktrough

  • describe key steps of procedure verbally prior to the start of the case

3

Description of potential complications and steps to avoid them

F

Room Preparation

1

Room setup and Equipment

  • standard OR table

2

Patient Positioning

  • supine position
  • place bump on the ipsilateral hip
  • place tourniquet high on the thigh
  • have an assistant milk the patella and quad tendon distal prior to placing the tourniquet.
G

Midline Incision

1

Mark and make midline incision

  • the incision will need to allow access to the patella tendon and the superior pole of the patella.
  • tourniquet may be inflated prior to incision.
  • one single incision can be made extending from the superior pole of the patella to the proximal portion of the tibial tubercle.
  • make the incision
H

Deep Dissection

1

Dissect through subcutaneous tissue

  • carry the incision through the subcutaneous tissue until the patella and patellar tendon rupture are identified
  • evacuate the hematoma and irrigate the joint.

2

Identify the paratenon

  • create a midline incision in the paratenon, elevating flaps for later closure.
I

Prepare Tendon

1

Remove all nonviable tissue

  • debride tissue as needed
  • disrupt all adhesions that are present

2

Place sutures

  • place two number 5 nonabsorbable sutures using a krackow stitch through the full thickness medial and lateral aspects of the tendon.
  • four strands of sutures should be coming from patella tendon (2 medial and 2 lateral)
J

Prepare the Patella

1

Expose cancellous bone

  • debride the inferior pole of the patella of any remaining tendon
  • use a curet, rongeur or burr to expose cancellous bleeding bone

2

Create bone tunnels

  • use a 2.5 mm drill to create medial, middle and lateral longitudinal holes through the patella
K

Reattach Tendon

1

Pass sutures

  • use a suture passer to pull the four suture limbs through the bone tunnels
  • the two middle sutures (one from medial limb and one from lateral limb)will be passed through the middle patella drill hole.
  • the most lateral suture will pass through the lateral drill hole.
  • the most medial suture will pass through the medial drill hole.

2

Secure the sutures

  • place the knee in full extension.
  • tie the most medial suture to the medial limb of the central two sutures.
  • tie the most lateral suture to the lateral limb of the central two sutures.
L

Repair the Retinaculum and Paratenon

1

Inspect and repair the retinaculum

  • identify and repair tears in the medial and lateral retinaculum if present

2

Repair the paratenon

N

Wound Closure

1

Perform a multilayer closure

  • paratenon
  • usually closed with a running 0 absorbable suture.
  • subcutaneous layer
  • usually closed with interrupted inverted 2-0 absorbable sutures.
  • skin
  • can be closed with non-absorbable or absorbable suture.

2

Dressing and immediate immobilization

  • place sterile dressing over incision
  • place in a hinged knee brace locked in extension

Postoperative Patient Care

O

Perioperative Inpatient Management

1

Write admission orders

  • pain meds
  • IV fluids
  • advance diet as tolerated
  • wound care
  • remove dressing POD 2
  • medical management and medical consultation
  • orders appropriate inpatient occupational and physical therapy (weight-bearing, ROM, limitations of physical therapy)

2

Discharges patient appropriately

  • pain meds
  • PT
  • follow up in 2 weeks
R

Complex Patient Care

1

Develops unique, complex post-operative management plans

2

Capable of evaluating and treating postoperative complications

3

Surgically treats complex complications

 

Please rate topic.

Average 5.0 of 1 Ratings

Thank you for rating! Please vote below and help us build the most advanced adaptive learning platform in medicine

The complexity of this topic is appropriate for?
How important is this topic for board examinations?
How important is this topic for clinical practice?
CASE COUNTER (0)
Case ID Date Hospital Faculty CPT Codes
Topic COMMENTS (1)
Private Note