Lecture 17: UE Arthroplasty Flashcards
A. For what conditions is a shoulder arthroplasty done?
B. What is the outcome of shoulder replacements?
- TSA: good outcomes for osteoarthritis and inflammatory arthritis.
- Hemiarthroplasty: Proximal humerus #.
- Reverse shoulder arthroplasty when rotator cuff tear.
B. Usually successful procedure w/ decreased pain and improved motion and function.
What are the types of shoulder arthroplasties?
- Hemiarthroplasty: Replacement of proximal humerus.
- Total Shoulder Arthroplasty: Replacement of the humarl and glenoid components of the G/H joint.
- 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.
- 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)
What are the two surgical approaches used for shoulder arthroplasty?
- Deltopectoral approach: more common. Go through anterior deltoid and pec maj. so only subscapularis gets cut.
- Superior approach: Release anterior deltoid from clavicular attachment, increasing post op contraindications.
What is the most common dislocation risk for TSA?
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).
What are the Post-Op Contraindications following TSA?
- Activity restrictions
- Movement restrictions
- Active movement restrictions 4. Resistance Training restrictions
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
- (AROM)
No active shoulder IR 6 wks
Superior Approach: No active shoulder flexion 6 wks - 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
How are TSAs managed post-operatively?
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.
TSA 1-4 days post-op (inpatient):
- Contraindications
- PT management
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
TSA up to 6 wks:
- Contraindications
- PT management (rehab or outpatient physio)
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.
- PROM: Flex, IR, ER (Scapular plane).
AROM: Flex (unless sup), Elevation in scapular plane.
What are the goals 2 wks post op?
140 Flex
75 Abduction w/ no rotation
40 ER in neutral
TSA at 6-12 wks:
- Contraindications.
- PT management
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
What are the goals for sh ROM after TSA?
Return to function?
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.
What are the differences for:
- rTSA
- rTSA w/ LDTT vs rTSA
- 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
What are the criteria for PT discharge following TSA?
- 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.
What activities are not recommended ever after TSA?
Football, Gymnastics, Hockey, Rock Climbing
-Review table in slides
For what conditions is a elbow arthroplasty done?
What is the prognosis of a TEA?
- Inflammatory arthropathies (RA)
- Posttraumatic OA
- Distal humerus # or non-union
- Reconstruction after tumor resection
- Successful for pain relief, motion and function.
- Higher complication rate