Treatment of Injured Workers' Shoulder and Knee Injuries · Treatment of Injured Workers’...
Transcript of Treatment of Injured Workers' Shoulder and Knee Injuries · Treatment of Injured Workers’...
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Treatment of Injured Workers’ Shoulder and
Knee InjuriesDetermining What Findings are WC Compensable
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Difficult Job
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Utah Experience
Knee Injury in injured worker
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The other job…
Perhaps unique to Utah
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Your job and mineIdentify unique work related medical conditions or injuries which need treatment
Provide necessary care
Make all necessary efforts to return injured worker to pre-injury level
Where this is not possible, facilitate alternative options of employment and/or long term care
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The ChallengeProvide quality and efficient care
Meet the needs of your employer
Meet the needs of the injured worker
Meet the needs of injurer worker’s employer
Avoid wasteUnnecessary time lost from workUnnecessary or inappropriate medical care
Can include diagnostics, treatments, addictive drugs
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Sounds easy ….but!
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Best Care : Best Provider
NFL Experience
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First Question:Knee and Shoulder Conditions that arise from Industrial exposure occur from:
Acute TraumaRepetitive Cumulative TraumaNatural progression of disease unrelated to industrial exposureAggravation of pre-existing disease the result of acute or repetitive cumulative trauma from industrial exposure
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Acute TraumaThis is the easiest of all If it is broken and an industrial accident was responsibleDefine the nature and extent of the damagePerform or accomplish appropriate repair/healingComplete rehabilitationReturn to prior work if possible
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Acute Trauma Shoulder
SLAP lesion
Rotator Cuff tear
Fracture
Dislocation
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SLAP Lesion
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Rotator Cuff Tear
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Shoulder fracture
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Dislocation
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Acute Trauma Knee
ACL tear
MCL tear
Meniscal Tear
Tibial Plateau fracture
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ACL Tear
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MCL Tear
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Meniscal tear
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Tibial Plateau Fracture
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Injury vs IllnessChallenge to define what is right
Illness: Not responsibility of employer
Natural progression of pre existing disease: Notresponsibility of employer
Aggravation of pre existing disease or condition: may be responsibility of employer if described “injury” was extra-ordinary.
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Difficult KneeAging patient
X-ray or MRI evidence of degenerative joint disease
Not uncommon to also have degenerative tear of meniscus
Acute Work related injury (usually appears incidental
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VocabularyThe words we use can define responsibility
Be careful what you say
Important at work and at home ☺
Take a careful history
Check the records
Patients and providers have short memories
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Transient aggravation Pre existing condition made temporarily worse as a result of activity of employment. After brief period of treatment condition returns to previous level of symptoms
Note: didn’t return to normal…..however no responsibility for not being normal
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Exacerbation of Pre Existing condition
Previous disease, minimally symptomatic
Extra ordinary industrial exposure provokes worsening of condition which DOES NOT return to pre injury state despite medical care
May provoke need for extra ordinary treatment
Osteoarthritic Knee ultimately needs total knee arthroplasty and never returns to work.
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ApportionmentTreatment (sometimes)
Permanent impairment or disability
Would have occurred the result of natural progression of pre existing disease
Occurred the result of incidental “injury” in industrial environment
Occurred the result of extra ordinary industrial exposure
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Other considerations:Apportion future medical care
Be careful of the conclusions you draw.
Acute tear of lateral meniscus today may provoke need for major knee arthroplasty 10-15 years from now.
Who should be responsible?
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Technology can helpNew verses old
Pre existing vs the result of industrial injury
ExamplesRotator cuff tear
Bony impingementAC arthropathyRotator cuff degenerative tissue changesAcute tear
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New vs OldAcute knee injury
Acute meniscal tearAcute hemarthrosisBone contusion on MRI
Old knee injuryDegenerative appearance on MRINo effusionNo acute changes
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Knee conditions
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Nightmare
For physician
For claims manager
For patient
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OnsetWorker bent over to pick up a piece of paper
Felt “pop” or nothing at all followed by soreness, swelling, difficulty pivoting or squatting
Xrays and MRI demonstrate pre-existing disease yet patient was not symptomatic
“Trauma” was minimal, not extra ordinary or not at all
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TreatmentNo improvement with rest/time
Made worse by exercise therapy
Cortisone injection temporary improvement
Arthroscopy: torn mensicus, moderate osteoarthritis
Partial meniscectomy and limited debridementof arthritic surfaces
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Outcome Worst Case Difficult slow recovery
Pain, swelling
Treatment with rest, time, physical therapy, analgesics,
Deteriorating condition
Increased pain and impairment
Consideration of total knee replacement
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ApportionmentTreatment
Impairment
Need for future treatment
After all that….the knee becomes infected provoking need for two stage revision and months of iv antibiotics……
Bad things do happen
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Avoidance:Early recognition by treating physician of significance of pre-existing disease
Careful identification of potential “straw that broke the camel’s back”
Only thing worse than an injured worker is an angry impaired worker
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Repetitive Cumulative Trauma
AC Arthropathy
Shoulder impingement syndrome
Rotator Cuff Tear
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AC JointAC joint often becomes progressively arthritic the result of overhead activities
Dry wall hangerPainterPusher/puller workerHeavy manual labor
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AC Arthropathy
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AC TreatmentLocal injection
Work modification avoid overhead activity
Surgical resection distal end of clavicle
Recovery in several weeks
No residual disability
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Shoulder ImpingementSub Acromial impingement
Rotator cuff chronic abrasion of tendon of cuff against acromion
Leads to pain, limitation of motion and weakness of rotator cuff
Night pain is common
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TreatmentAlter overhead activity
Physical rehabilitation may help in early stages
Local sub acromial injection/ NSAID
In severe cases surgical sub acromialdecompression may be necessary
Recovery anticipated with no residuals
Assumes Rotator Cuff is intact
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Rotator Cuff TearRepetitive use
Age
Long standing impingement
Failure of Rotator Cuff due to:Repetitive useExcessive loadTissue failure
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Natural progression of disease unrelated to industrial exposure
Osteoarthritic knees
No extra ordinary exposure at work place
Condition deteriorates over time
Treatment becomes necessary
No industrial responsibility
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Aggravation of pre-existing disease the result of acute or repetitive cumulative
trauma from industrial exposureOsteoarthritic knees
High impact exposure repeated over extended time period
Onset of symptoms provokes medical care
Apportion treatment?
Apportion impairment?
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AAOS Clinical practice guidelines
Self-management exercise: Yes! Strong
Weight loss: Suggest! Moderate evidence
Acupuncture: No! Strong evidence
Electrotherapeutic modalities: Unable inconclusive
Manual Therapy: Inconclusive
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Medial Un-loader brace: Inconclusive
Lateral wedge insoles: No: Moderate strength
Glucosamine/Chondroitin: No! Strong Evidence
NSAID: Yes! Strong Evidence
Analgeics: Inconclusive
Intra-articular Steroids: Inconclusive
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HA Injections: No! Strong Evidence
PRP/ Growth factor Injections: Inconclusive
Needle Lavage: No! Moderate evidence
Arthroscopic Debridement: No! Strong
Arthroscopic Meniscectomy: No! Inconclusive
HTO/Valgus Osteotomy: Limited
Free floating medial arthroplasty: No! Never!
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Anatomy and Anatomy and Appearance of Appearance of
ChondralChondral Injuries in Injuries in knee joint knee joint
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Grade IGrade IGrade IIGrade IIGrade IIIGrade IIIGrade IVGrade IV
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Tire Analogy:Normal tread “0”
Blister or slight surface breakdown II
Spots where the rubber is pealing off the core IIIExposed core IV
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Outerbridge classification:• grade 0: normal cartilage;
• grade I: cartilage with softening and swelling;
• grade II: a partial-thickness defect with fissures on the surface that do not reach subchondral bone or exceed 1.5 cm in diameter;
• grade III: fissuring to the level of subchondral bone in an area with a diameter more than 1.5 cm;
• grade IV, exposed subchondral bone.
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ChondroplastyChondroplasty Grade II and III LesionsGrade II and III Lesions
Indication for Procedure
Technique
After Care
Future Expectations
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Micro fractureMicro fracture Grade IVGrade IV
Indications for procedure
Technique
After Care
Future Expectations
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Oats ProcedureOats Procedure Grade IV Greater than 1 square centimeter Grade IV Greater than 1 square centimeter
Indications for procedureTechniqueAfter CareFuture Expectations
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ACI ProcedureACI Procedure Very Large Grade IV Very Large Grade IV
Indications for procedure
Technique
After Care
Future Expectations
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Large fresh Large fresh OsteochondralOsteochondral AllograftAllograft
Indications for procedure
Technique
After Care
Future Expectations
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Partial Knee Partial Knee Resurfacing Resurfacing
Indications for procedureTechniqueAfter CareFuture Expectations
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Partial PrePartial Pre--op Xop X--RaysRays
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Partial PostPartial Post--op Xop X--RaysRays
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Total Knee Total Knee Replacement Replacement
Total Resurfacing vs. Replacement
Indications for procedureTechniqueAfter CareFuture Expectations
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Total KneeTotal Knee Pre Op XPre Op X--RaysRays
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Post op XPost op X--RaysRays
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Thank you!!