Lecture 17: UE Arthroplasty Flashcards

1
Q

A. For what conditions is a shoulder arthroplasty done?

B. What is the outcome of shoulder replacements?

A
  1. TSA: good outcomes for osteoarthritis and inflammatory arthritis.
  2. Hemiarthroplasty: Proximal humerus #.
  3. Reverse shoulder arthroplasty when rotator cuff tear.

B. Usually successful procedure w/ decreased pain and improved motion and function.

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2
Q

What are the types of shoulder arthroplasties?

A
  1. Hemiarthroplasty: Replacement of proximal humerus.
  2. Total Shoulder Arthroplasty: Replacement of the humarl and glenoid components of the G/H joint.
  3. Reverse Total Shoulder Arthroplasty (rTSA): when there is a massive rotator cuff tear the humeral component is concave instead of convex and g/h is convex. This moves the centre of rotation of the G/H joint medially and inferiorly which increases the moment arm of the deltoid. Deltoid can provide more G/H elevation, stability and mobility.
  4. Lat dorsi tendon transfer (LDTT): when there is a teres minor insufficiency (loss of external rotation) or rotator cuff tear the lat dorsi tendon goes from anterior to posterior to allow for external rotation. (gain about 15 degrees)
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3
Q

What are the two surgical approaches used for shoulder arthroplasty?

A
  1. Deltopectoral approach: more common. Go through anterior deltoid and pec maj. so only subscapularis gets cut.
  2. Superior approach: Release anterior deltoid from clavicular attachment, increasing post op contraindications.
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4
Q

What is the most common dislocation risk for TSA?

A

Normally shoulder instability is abduction and full ER. Not for TSA its posterior instability:
HBB: Adduction, IR and extension that poses the greatest risk following TSA (especially reverse TSA).

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5
Q

What are the Post-Op Contraindications following TSA?

  1. Activity restrictions
  2. Movement restrictions
  3. Active movement restrictions 4. Resistance Training restrictions
A
1. 
No driving 3 wks
No WB on UE 6 wks 
No heavy pushing or pulling 6 wks 
No lifting object > 3 lbs for 12 wks

rTSA w/ LDTT: No lifting objects > 6 lbs for 16 wks.

2.  (PROM and AROM)
rTSA w/ LDTT: No ROM at all for 4-6 wks 
No ext  past neutral 6-8 wks (rTSA 12wks)
No EOR HBB 6 wks (rTSA 12)
No EOR abd/ER 6 wks 
No EOR ER 6 wks 

rTSA: No EOR IR 6 wks

  1. (AROM)
    No active shoulder IR 6 wks
    Superior Approach: No active shoulder flexion 6 wks
  2. No RT 6 wks
    rTSA w/ LDTT: up to 9 wks
    Superior approach or rTSA w/ LDTT: can be up to 12 wks

No IR RT 9-12 wks

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6
Q

How are TSAs managed post-operatively?

A

Immobilize sling 3-4 wks
Sleep on pillow arm in flexion (to prevent arm for going into extension past neutral)

rTSA w/ LDTT: Custom brace for 4 wks at least. Holds arm slight elevation in scapular plane w/ 15 degrees ER.

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7
Q

TSA 1-4 days post-op (inpatient):

  1. Contraindications
  2. PT management
A
1. 
Movement: 
-No Ext past neutral
-No EOR: HHB, Abd/ER, ER
-No AROM: IR, Flex (SA)
Resistance: 
-No RT
-No WB on UE
-No heavy pushing or pulling 
-No lifting objects> 3 lbs 

2.

  • Education: Contraindications and positioning.
  • AROM: Elbow, wrist, hand, Cx spine.
  • Pendulum Ex
  • PROM: Flex, Abd, IR, ER scapular plane
  • Cryotherapy
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8
Q

TSA up to 6 wks:

  1. Contraindications
  2. PT management (rehab or outpatient physio)
A
1. 
Movement: 
- No ext past neutral 
- No EOR: Abd/ER, ER, HBB
-No AROM: IR and Flex (SA)

Resistance:

  • No RT
  • WB UE
  • Push or pull heavy objects
  • Lifting objects > 3 lbs.
  1. PROM: Flex, IR, ER (Scapular plane).
    AROM: Flex (unless sup), Elevation in scapular plane.
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9
Q

What are the goals 2 wks post op?

A

140 Flex
75 Abduction w/ no rotation
40 ER in neutral

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10
Q

TSA at 6-12 wks:

  1. Contraindications.
  2. PT management
A
1. No lifting heavy objects > 3 lbs 
No IR RT (b/w 9 and 12 wks)
2. 
ROM:
-Continue PROM and AAROM 
-Add AAROM Hoz Abd
-Begin AROM: Flex, IR, ER (pain-free)
Muscle activation: 
-Sub-max isometrics (neutral/pain free) 
-Scapular Ex 
-Later: minimal resistance to flex, elevation, ER and IR
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11
Q

What are the goals for sh ROM after TSA?

Return to function?

A
Flex: 140-160 degrees 
Abd: 90 degree w/ 40 degrees of IR/ER 
ER: 40-60 in neutral 
IR: 70 degrees at 90 abd
Full Ext
HBB thumb to level of L2

AT 3 monts HEP
Should be able to return to functional/recreational activities w/in 4-6 months.

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12
Q

What are the differences for:

  1. rTSA
  2. rTSA w/ LDTT vs rTSA
A
  1. No Ext. past neutral x 12 weeks (vs. 6-8 wks)
    No EOR HBB x 12 weeks (vs. 6 weeks)
    No EOR IR x 6 weeks
2.
No ROM at all x 4-6 weeks
No lifting objects >6 lbs x 16 weeks
No RT up to 9 weeks (vs. 6 weeks) 
up to 12weeks ͞p superior approach
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13
Q

What are the criteria for PT discharge following TSA?

A
  • Pt able to maintain pain free AROM
  • Maximized functional use of UE
  • Maximized muscular strength, power and endurance
  • Pt has returned to advanced functional activities

-Lifelong ROM ex’s recommended.

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14
Q

What activities are not recommended ever after TSA?

A

Football, Gymnastics, Hockey, Rock Climbing

-Review table in slides

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15
Q

For what conditions is a elbow arthroplasty done?

What is the prognosis of a TEA?

A
  • Inflammatory arthropathies (RA)
  • Posttraumatic OA
  • Distal humerus # or non-union
  • Reconstruction after tumor resection
  • Successful for pain relief, motion and function.
  • Higher complication rate
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16
Q

What types of prostheses are used for TEA?

A
  1. Semi-constrained (linked): physical link (pin) between the humeral and ulnar components.
  2. Non-constrained (unlinked): no pin, usually if ligaments are intact.
    More conservative rehab.
17
Q

What are the contraindications following TEA?

  1. Activity
  2. Movement
  3. Resistance
A
1. 
No driving 2-3 wks 
No WB on UE 12 wks 
No pushing or pulling 12 wks 
No lifting objects > 10-15 lbs for life 
No hobbies involving repetitive throwing for life. 
  1. No AROM for elbow Ex against gravity 6 wks
    AAROM/AROM in gravity free plane usually permitted.

Non-Constraint procedure:
No ext combined w/ supination for 6 wks.

  1. No elbow flex RT 6-8 wks
    No Wrist RT 6-8 wks
    No elbow ext RT 12 wks

Triceps tendon is cut during procedure.

18
Q

What is done post-operatively to manage TEA?

A

Removable extension splint for 4-8 weeks. Take off for rehab.

19
Q

How are TEA managed post-operatively in terms of rehabilitation?

  1. 1-4 days post-op (in-pt until 6 wks)
  2. 6-8 to 12 wks
  3. Week 12
A
  1. AAROM to AROM for: Elb, F/A, wrist
    -Ext only in gravity free plane if allowed.

AROM: Shoulder, Cx Spine and fingers
Cryotherapy
Education (positioning, contraindications)

  1. Begin AROM elb ext against gravity
    Begin STR for elbow flex and wrist
    (isometric to isotonic w/ elbow supported)
  2. Isotonic elbow STR ex and progress to functional use.
20
Q

What is the end goal for rehabilitation?

A

ROM 30-130 degrees.

Unlikely to regain full extension or flexion.