Topic
Review Topic
0
0
Questions
15
0
0
Evidence
15
0
0
Videos
3
Techniques
1
https://upload.orthobullets.com/topic/3089/images/semiconstrained tea.jpg
https://upload.orthobullets.com/topic/3089/images/15b_moved.jpg
https://upload.orthobullets.com/topic/3089/images/ularthr.jpg
https://upload.orthobullets.com/topic/3089/images/mayo.jpg
Introduction
  • Total elbow arthroplasty (TEA) is increasingly used for the treatment of many debilitating elbow pathologies 
  • TEA for trauma is one of the fastest-growing indications
  • Forms of elbow arthroplasty 
    • total elbow arthroplasty
    • hemi elbow arthroplasty
      • radiocapitellar 
      • distal humeral 
    • ulnohumeral distraction & interpositional arthroplasty
    • olecranon fossa debridement
    • radial head arthroplasty
Indications
  • Indications
    • rheumatoid arthritis (RA)
      • indication
        • 10-20% of patients with RA will have arthritic changes in the elbow
          • TEA considered for Larsen stages 3 to 5 with:
            • functional loss
            • pain
            • instability
        • ideally, patient should be older than 65 years old
      • outcomes
        • longest survivorship when TEA is performed for RA compared to other indications   
          • most reliable with advanced, refractory RA
    • primary osteoarthritis (advanced)
      • indication
        • patient should be older than 65 years old
        • mid-arc pain with activity resulting from ulnotrochlear joint cartilage loss
      • outcomes
        • 10-year implant survival about 80-85% for TEA for primary OA
    • fracture
      • indication
        • physiologically elderly patient (e.g., > 70 years) with:
          • acute complex, unreconstructable intra-articular distal humerus fracture
          • missed elbow fracture dislocation
          • poor quality bone
      • outcomes
        • faster recovery with more predictable functional outcomes compared to fixation strategies
        • limitations of lifting weight more than 5 to 10 pounds to avoid implant loosening
    • posttraumatic osteoarthritis (advanced)
    • chronic instability
  • Contraindications
    • absolute
      • active infection (arthrodesis favored)
      • Charcot joint
    • relative 
      • poor neurologic control of affected extremity
      • active patient younger than <65 years old
      • olecranon osteotomy 
Implants
  • Designs 
    • unconstrained or unlinked components  
      • example
        • Ewald capitello-condylar design
      • technical aspects
        • requires competent collateral ligaments and soft tissue envelope
        • requires good bone quality 
      • outcomes
        • instability is most common complication (5-10% dislocation)
        • precise component alignment is required
        • no proven superiority or clear indication compared with semiconstrained/linked
    • semiconstrained or linked components   
      • examples 
        • Coonrad-Moorey design
      • technical aspects
        • "sloppy hinge" allows for some varus-valgus and rotational laxity
        • reduces stress on bone-cement interface, which reduces incidence of component loosening
      • outcomes
        • best results of all the designs
        • complication of early humeral loosening with designs without an anterior flange
    • constrained  
      • example
        • Dee design
      • technical aspects
        • rigid hinged design
        • theoretically most stable design (versus unlinked)
      • outcomes
        • highest loosening rates compared to semiconstrained and unconstrained designs
  • Design pearls
    • component stems (ulna and humerus) have improved fixation and reduced loosening
    • humeral component extracortical anterior flange resists posteriorly directed and rotational forces
    • radial head not needed for stability in linked TEA designs
      • radial head often debrided or resected in RA, due to mechanical symptoms or pain
Key Technical Concepts
  • Preoperative care
    • clinical evaluation
      • age > 65 
      • low demand patient
      • able to comply with post-operative weight-bearing restriction (none do so be careful who you operate on)
      • medical optimization
    • imaging
      • standard radiographs
        • AP and lateral views of elbow
          • assess bone stock
          • ensure medial and lateral columns are intact
          • assess canal diameter for implant design
        • cervical spine
          • flexion-extension views 
            • rheumatoid arthritis patients
      • CT scan
  • Surgical
    • positioning 
      • supine
        • arm draped free 
        • requires an assistant to hold the arm over the patients chest
          • surgeon must take care to avoid the endotracheal tube
      • lateral decubitus
        • arm positioned over a bolster
        • minimizes the need for an assistant to hold arm 
          • decreases the ability to manipulate the arm
    • approach 
      • triceps-reflecting, triceps-splitting, and triceps-sparing
        • triceps-reflecting (Bryan-Morrey)
          • triceps reflected from medial to lateral in continuity with the anconeous
          • triceps re-attached to ulna with nonabsorbable suture through bone tunnels 
        • triceps tongue
          • raise fascial tongue from olecranon back proximally
          • release collateral ligaments proximally and distally
          • can be used for fractures or TEA
        • triceps-splitting 
          • triceps is longitudinally divided in continuity with forearm fascia over dorsal ulna
          • triceps can also be split proximally with a V-shaped turndown of the tendon, leaving insertion onto olecranon intact
            • allows for extensor mechanism lengthening if needed
        • triceps-sparing
          • triceps preserved intraoperatively, but exposure can be challenging
          • medial and lateral borders of triceps are mobilized
          • best for using TEA to manage acute distal humerus fractures
        • triceps "on"
          • direct midline, posterior incision
          • identify, release and protect the ulnar nerve
            • release the flexor-pronator mass and medial collateral ligament from medial epicondyle 
          • elevate the triceps off the posterior humerus towards the lateral intermuscular septum
            • release the common extensors and lateral collateral ligament complex 
          • disarticulate the ulno-humeral joint
      • technique
        • bone preparation
          • preparation of humeral component 
            • resect the olecranon fossa of distal humerus
              • keep medial and lateral column intact
              • broaching to appropriate sized component
          • preparation of ulnar component
            • resect the olecranon tip of proximal ulna
            • resect tip of coronoid to avoid impingement on anterior flange which will cause axial pistoning of ulna and loosening
              • broaching to appropriate sized component
        • implant insertion
          • component design
            • semiconstrained most common
            • modern cement preparation and technique
          • humerus component
            • prepare a wedge-shaped piece of bone for placement behind the humeral flange
            • maintain component orientation relative to the posterior flat surface of the distal humerus
          • ulnar component
            • orient the implant perpendicular to the dorsal flat surface of the olecranon 
  • Postoperative care
    • early period of immobilization 
      • early motion after TEA is associated with wound complications, instability, and hardware loosening
      • typically immobilize for 4 weeks after surgery
    • lifelong weightlifting restriction of less than 5-10 lbs
Outcomes
  • Rheumatoid arthritis TEA outcomes
    • 10 year survivorship
      • 92.4% rate of survivorship free of revision at 10 years
      • however very high complication rate (14%) 
        • triceps avulsion
        • deep infection
        • periprosthetic fracture
        • aseptic loosening
  • Post traumatic arthritis TEA outcomes
    • 5 year survivorship
      • most achieve functional ROM and patient satisfaction
      • high complication rate (27-43%)
      • high re-operation rate (25%)
Complications
  • Aseptic loosening (radiographic 17%, clinical 6%)
    • most common mode of failure for constrained
  • Infection (8%)
    • acute infection (< 30 days)
      • treatment
        • aggressive serial irrigation and debridement and antibiotic bead placement
        • success depends on organism
          • staphylococcus epidermidis is associated with persistent infection because it is an encapsulating organism, and it is best treated with implant removal and IV antibiotic
    • chronic infection
      • treatment
        • two staged reimplantation versus resection arthroplasty in medically ill patients or those with inadequate bone stock. 
  • Instability (7-19%)
    • most common mode of failure for semiconstrained
  • Bushing wear (obtain AP xrays and varus/valgus angle of > 10 degrees is concerning)
    • common mode of failure for constrained
  • Wound healing (higher with longterm steroid use)
  • Ulnar neuropathy
  • Triceps insufficiency
  • Bone loss  
    • from multiple revisions, fractures, osteolysis
    • graded based on humeral bone stock
    • treatment
      • up to 8cm of distal humeral loss can be replaced with longer prosthesis with extended anterior flange or endoprosthesis (total humerus)
      • salvage options include flail elbow, amputation, arthrodesis
  • Periprosthetic fracture  
    • in 5-30% of primary TEAs
    • causes 
      • trauma
      • osteoporosis
      • aseptic loosening
      • stress shielding
      • poor technique
      • non compliance with activity restriction
    • classification based on that for periprosthetic femoral fractures (see table below)
Mayo (O'Driscoll & Morrey) Classification of Periprosthetic fracture  
Type  Characteristics Treatment 
Type I Periarticular fracture near the tip. From osteolysis around hinge components and distracting forces from muscle attachments. 

Undisplaced - Immobilization /soft tissue repair is sufficient to achieve fibrous union (Rigid fixation not required).

Displaced - ORIF with heavy nonabsorbable sutures or tension band wiring (if limited periprosthetic bone)

Type II Along length of stem. From implant loosening.

Revision arthroplasty using long-stem prosthesis ± strut allograft and impaction bone grafting. Locking plates / cerclage wires may be added for added stability.

May be performed in stages: Stage I - address fracture union with onlay iliac crest bone graft and LCDCP. Stage II (after fracture union) - revise implants with longer stem and impaction graft 

Type III Distal to prosthesis. Treated like routine fractures. Radiographs/CTs to ensure implants are not loose, cement mantle not cracked.

If implants are well-fixed, immobilization for humerus and ORIF for ulna. 

If implants are loose, treat as for Type II fractures.

 

Please rate topic.

Average 3.5 of 30 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?
Technique Guides (1)
Questions (15)
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK

(OBQ12.40) A 62-year-old female with history of rheumatoid arthritis presents with end-stage elbow arthritis. Regarding total elbow arthroplasty (TEA) for rheumatoid arthritis, which of the following implant survival results would be expected? Review Topic

QID: 4400
1

Poor survival results by 5 years

3%

(154/4983)

2

Good survival results at 5 years, poor results by 10 years

15%

(730/4983)

3

Good survival results at 10 years, poor results by 15 years

20%

(995/4983)

4

Good survival results at 15 years

53%

(2621/4983)

5

Lack of long-term survival studies regarding TEA for rheumatoid arthritis

9%

(456/4983)

ML 4

Select Answer to see Preferred Response

PREFERRED RESPONSE 4

(OBQ11.261) What is the preferred treatment for a propionibacterium acnes infection that has been symptomatic for 6 months after total elbow arthroplasty with well-fixed components, good bone stock, and a healthy patient? Review Topic

QID: 3684
1

Non-operative treatment with IV antibiotics for 6 weeks

9%

(229/2650)

2

Arthroscopic irrigation and debridement

2%

(53/2650)

3

Open irrigation and debridement with poly exchange

13%

(348/2650)

4

Single stage revision arthroplasty

5%

(121/2650)

5

Two stage revision arthroplasty

71%

(1882/2650)

ML 2

Select Answer to see Preferred Response

PREFERRED RESPONSE 5
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK
ARTICLES (26)
VIDEOS (3)
Topic COMMENTS (5)
Private Note