Injection Technique - GP CME North/1400 Room 12 Fri... · Title: Injection Technique Author: Stuart...
Transcript of Injection Technique - GP CME North/1400 Room 12 Fri... · Title: Injection Technique Author: Stuart...
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Injection TechniqueDr Stuart Armstrong
Sport and Exercise Physician
Hamilton
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Introduction
Who, what and why to inject
Patient perceptions
Consent and contraindications
How to inject
Post injection care
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Disclosures and Conflicts
None
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Who, what and why to inject
“Anything can be injected with a long enough needle and a strong
enough arm” House of God
In sports medicine cortisone is used to help patients do their exercises
Arthritis
Pain Management
Cortisone for treatment, local anaesthetic for diagnosis
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Agent Potency Duration Dose/site
Hydrocortisone acetate (Hydrocortone)
Low Short 10 to 25 mg for soft tissue and small joints
50 mg for large joints
Methylprednisolone acetate (Depo-Medrol) or triamcinolone acetonide (Kenocort)
Intermediate Intermediate 2 to 10 mg for soft tissue and small joints
10 to 80 mg for large joints
Dexamethasone sodium phosphate (Decadron)
High Long 0.5 to 3 mg for soft tissue and small joints
2 to 4 mg for large joints
Betamethasone sodium phosphate and acetate (Celestone Soluspan)
High Long 1 to 3 mg for soft tissue and small joints
2 to 6 mg for large joints
Corticosteroid Agents by Relative Potencies, Duration, and Dose
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Patient Perceptions
Issue These things are toxic
They are incredibly painful
They aren’t natural
They only treat inflammation not the problem
They cause cartilage damage
Response Only rarely, those are the interesting
stories
Only small joints
Body produces cortisone every day
Inflammation is the problem
Yes….. But not as much as an inflamed joint
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Consent
Verbal consent
1/10,000 risk introducing infection
1/20 risk of pain flare for 48 hours
Problems sleeping, facial flushing
Next period heavier
Skin blanching
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Contraindications
Over 3 injections to that area last 12 months
Joint Sepsis
Prosthesis
Bacteraemia
Fracture
Coagulopathy
Cellulitis
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Image Guided versus Landmark
Guided
No strong evidence that image guided injection is better than landmark
guided in experienced hands
Image guidance adds $200+ and can only be done once under ACC
Not all injections can be performed by landmarks
Dequervains
Trigger Finger
Hip intra-articular
Peroneal tendons
Any you aren’t familiar with
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Preparation
40mg Kenocort
2-5ml Lignocaine
Alcohol wipe
Syringe and 25G Needle (0.5mm)
Patient!
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Injection Technique - Wrist
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Triangular Fibro Cartilage Complex
(TFCC)
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Elbow – Posterior Interosseous Nerve
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Elbow – Posterior
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Shoulder - Subacromial
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Shoulder GH Joint
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Shoulder – AC Joint
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Chest – Costochondral injection
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Thoracentesis
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Sacroiliac Joint
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Gluteal/Trochanteric bursa
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Iliotibial band
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Knee aspiration
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Knee Injection
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Ankle Injection
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1st MTP joint injection
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Retrocalcaneal bursa injection
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Plantar fascia
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Post injection care
Depends on joint injected but generally avoid new activity for 2 weeks
If post injection flare simple analgesics
No point injecting if patients will not do their exercises
Can be repeated at 6 weeks
Looking for a 50% benefit for “successful injection”
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Conclusion
Cortisone is good
Mostly used to let patients do their rehab
Can break cycle of pain
Only inject if you are comfortable…. But you have to start somewhere
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Questions?