Musculoskeletal Medicine: Common Orthopedic Problems · 2014-06-28 · Musculoskeletal Medicine:...
Transcript of Musculoskeletal Medicine: Common Orthopedic Problems · 2014-06-28 · Musculoskeletal Medicine:...
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Musculoskeletal Medicine: Common Orthopedic Problems
Joseph Garry, MD, FAAFP, FACSM University of Minnesota
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Disclosures
Dr Garry discloses that he holds stock in Pfizer and Merck pharmaceuticals.
It is the policy of the AAFP that all individuals in a position to control content disclose any relationships with commercial interests upon nomination/invitation of participation. Disclosure documents are reviewed for potential conflicts of interest. If conflicts are identified, they are resolved prior to confirmation of participation. Only participants who have no conflict of interest or who agree to an identified resolution process prior to their participation were involved in this CME activity.
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Learning Objectives
1. Cite strong indicators for immediate imaging of the lumbar spine.
2. Know the evidence-based management for low back pain.
3. Cite the risk factors and management of overuse injuries (tendinopathy, shoulder pain, carpal tunnel syndrome).
4. State management of 3 common foot problems (plantar fasciitis, Morton’s neuroma, tarsal tunnel syndrome).
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Most Common Causes of LBP in Adults
• Strain or sprain 70%
• Degenerative 10%
• Discogenic 4%
• Osteoporotic fracture 4%
• Spinal stenosis 3%
• Spondylolisthesis 2%
‘Other’ includes neoplasia, pelvic etiology, abdominal etiology, etc.
80%
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1. All of the following are “red flags” suggestive of early imaging of the lumbar spine except …
A. Urinary retention B. Renal cancer C. Back pain at rest D. Urinary incontinence
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1. All of the following are “red flags” suggestive of early imaging of the lumbar spine except …
A. Urinary retention B. Renal cancer C. Back pain at rest D. Urinary incontinence 18%
11%
10%
61%
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LBP Imaging – “Red Flags”
History Findings Exam Findings • Cancer metastatic to bone
(breast, lung, thyroid, renal, prostate)
• Urinary or fecal incontinence • Urinary retention • Progressive lower extremity
motor or sensory loss • Significant trauma related to age • Severe pain and lumbar spine
surgery in the prior 12 months
• Major motor weakness or sensory loss
• Saddle anesthesia • Loss of anal sphincter
tone • Fever, urinary tract
infection, or wound in spine region
These are all STRONG findings and the presence of a STRONG finding indicates need for imaging.
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Ann Intern Med. 2011;154(3).
Immediate imaging recommended for acute LBP with major risk factors for or signs of cauda equina syndrome or severe progressive neurological deficits. Imaging after trial of therapy for those with minor risk factors for cancer, risk factors for inflammatory back disease, risk factors for VCF, signs or symptoms of radiculopathy, or risk factors for or symptoms of symptomatic spinal stenosis. Repeated imaging is only recommended in patients with new or changed low back symptoms.
Summary of the American College of Physicians Best Practice Advice:
Diagnostic Imaging for Low Back Pain
Indications for Diagnostic Imaging
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Ann Intern Med. 2011;154(3).
RCTs of routine imaging vs usual care without routine imaging in patients without indications for diagnostic imaging suggest no clinically meaningful benefits on outcomes related to pain, function, quality of life, or mental health. Other supporting evidence includes the weak correlation between most imaging findings and symptoms, the favorable natural history of acute LBP with or without imaging, the low prevalence of serious or specific underlying conditions, and unclear effects of imaging on treatment decisions.
Summary of the American College of Physicians Best Practice Advice:
Diagnostic Imaging for Low Back Pain
Evidence that expanding imaging to those without indications does not improve outcomes
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LBP Imaging
Adult with acute LBP without “red flags” Suspect degenerative changes/sprain/strain 4-6 weeks of treatment/therapy Symptoms improve Symptoms continue (XR)
Neuro deficit No neuro deficit Stop imaging MRI Stop imaging
Humphreys et al. Am Fam Physician. 2002.
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2. A 43-yo male was moving a dresser 2 days ago and felt pain in his low back. Pain persists and radiates to left buttock. No radiation of symptoms below the level of the knee. Which of the following recommendations have been shown to be helpful for recovery?
A. Bed rest until pain resolves B. Use of an NSAID C. Referral to back school D. Early imaging
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2. A 43-yo male was moving a dresser 2 days ago and felt pain in his low back. Pain persists and radiates to left buttock. No radiation of symptoms below the level of the knee. Which of the following recommendations have been shown to be helpful for recovery?
A. Bed rest until pain resolves B. Use of an NSAID C. Referral to back school D. Early imaging 1%
1%
82%
21%
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Acute LBP
• Beneficial Therapies NSAIDs (A) Advice to remain active (A)
• Likely Beneficial Therapies
Muscle relaxants – weigh side effects (B) Epidural steroids (diskogenic pain) Physical therapy–directed home exercise program
Choi et al. Coch Database of System Rev 2010; Gelhorn et al. Spine 2010; Neurology 2007, 68(10); Cochrane Database of System Rev 2004, 2003; Griffin G., J Fam Pract (POEMS), 2000
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3. All of the following are beneficial in the treatment of chronic LBP to reduce pain and improve function except …
A. Tramadol B. Oxycontin C. Exercise D. Massage
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3. All of the following are beneficial in the treatment of chronic LBP to reduce pain and improve function except …
A. Tramadol B. Oxycontin C. Exercise D. Massage 10%
3%
85%
1%
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Chronic LBP Beneficial Therapies
▼ Pain - ▲ Function – Intensive multidisciplinary
treatment program (B) – Tramadol* (B) – Exercise (B) – Massage (A) – Behavioral therapy (B)
▼Pain – Antidepressants (B) – NSAIDs (B) – Analgesics* (B)
(narcotic analgesics) – Back school (B) – Manipulation (B) – Harpagophytum procumbens
(devil's claw) – Salix alba (white willow bark)
AFP 2009, 79(12); Malanga et al. Spine 2008; Cochrane Database of System Rev 2007, 2005; Gagnier et al. Cochrane Database of System Rev 2006
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Copyright © The American College of Physicians. All rights reserved.
RCT comparing massage (structural n = 132,
relaxation n = 136) to usual care (n = 133) for chronic LBP in 20-65 yo patients; weekly massage (50-70 min) x 10 weeks; benefits of massage persisted for 26 wks.
A Comparison of the Effects of 2 Types of Massage and Usual Care on Chronic Low Back Pain: A
Randomized, Controlled Trial, Cherkin et al. Ann Intern Med. 2011;155(1):1-9.
Mean Roland Disability Questionnaire (top) and Symptom Bothersomeness (bottom) Scores.
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Psychosocial Factors Predicting Long-Term Disability in Chronic LBP
Affect Anxiety, depression, feeling of uselessness
Behavior Adverse coping strategies, impaired sleep, passive
Beliefs “Pain is harmful” and must be eliminated
Social History of abuse (physical/sexual/drug), lack of support
Work Expect pain will increase with work, pending litigation
AFP. 2009, 79(12).
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4. A 33-yo male presents with acute LBP after reaching down to load the dishwasher. The following day noted right leg pain and lateral foot paresthesias. At presentation, you find plantar flexor weakness in addition to positive dural tension signs. Your recommendation is …
A. Go to bed for rest and return in 3 days. B. Start high-dose prednisone as moderate to strong
evidence supports this for symptom relief. C. Prescribe an upper lumbar ESI and if symptom
relief then obtain an MRI. D. Consider surgical intervention despite outcomes
which are similar to non-surgical care at 2 years.
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4. A 33-yo male presents with acute LBP after reaching down to load the dishwasher. The following day noted right leg pain and lateral foot paresthesias. At presentation, you find plantar flexor weakness in addition to positive dural tension signs. Your recommendation is …
A. Go to bed for rest and return in 3 days. B. Start high-dose prednisone as moderate to strong
evidence supports this for symptom relief. C. Prescribe an upper lumbar ESI and if symptom
relief then obtain an MRI. D. Consider surgical intervention despite outcomes
which are similar to non-surgical care at 2 years. 3%
3%
68%
25%
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Lumbar HNP: Conservative Treatment
• 80% of all adult LBP resolves within 90 days (AHCPR Clinical Practice Guideline No. 14, 1994)
• 90% lumbar HNP starts to improve at 6 wks and resolve by 12 wks (Saal et al. Spine 1989)
• Avoid bed rest (Hagen et al. Coch Data Syst Rev 2004)
• Oral corticosteroids and NSAIDs have weak evidence for benefit (Holve et al. JABFM 2008; Roelors et al. Coch Data Syst Rev 2008)
• LESI provides benefit in terms of pain relief and preference for non-surgical treatment; mean = 3.6 inj/yr (Manchikanti et al. Spine 2011; Benyamin et al. Pain Physician 2012)
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Lumbar HNP: Surgical Treatment
• Indications Severe progressive motor deficits, cauda equina
syndrome, unremitting radiculopathy x 6 weeks • Spine Patient Outcomes Research Trial Surgery provides greater improvements in pain and
disability in the first two years vs nonsurgical treatment. Treatment effects are similar at > 2 yrs
• Microdiskectomy as effective as open diskectomy Gibson et al. Cochrane 2007
Weinstein et al. JAMA 2006 Pearson et al. Spine 2012
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Evidence-Based Practice Recommendations for Lumbar HNP
1. Advice to remain active (A) 2. Oral steroids and NSAIDs have limited benefit (B) 3. ESI provide (short term) symptom improvement (A) 4. If no “red flags,” then radiculopathy may be managed
conservatively, without imaging, for up to 6 wks (A) 5. Radiculopathy not improving after 6 wks of conservative
management may benefit from diskectomy for more rapid clinical relief (A)
6. Diskectomy has similar long-term outcomes as nonsurgical treatment (A)
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Characteristics of Overuse Injury
• Low contact activities/sports that involve long training sessions with repetitive motion
• Gradual onset and increase in symptoms make these difficult to identify early
• Consequences include loss of time in activity, reduced function, pain, and psychological exhaustion
• Female athletes at greater risk
Yang et al. J Athletic Tng 2012
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5. Which of the following statements is most correct regarding overuse injury?
A. Menstrual dysfunction is related to overuse injury B. Prior injury is not important in the etiology of
overuse injury C. Chronic tendinopathies are characterized by
inflammatory infiltrates D. Overuse injury is most commonly associated with a
single traumatic event
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5. Which of the following statements is most correct regarding overuse injury?
A. Menstrual dysfunction is related to overuse injury B. Prior injury is not important in the etiology of
overuse injury C. Chronic tendinopathies are characterized by
inflammatory infiltrates D. Overuse injury is most commonly associated with a
single traumatic event 7%
19%
11%
63%
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Overuse Injury: Contributing Factors
Pediatric & Adolescent Susceptibility of growth cartilage Adolescent growth spurt Developmental level
Intrinsic Factors Prior injury Inadequate conditioning Anatomic factors Menstrual dysfunction
Extrinsic Factors Training errors Equipment Technique Psychological factors
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Overuse Injuries: Tendinosis
• Non-inflammatory degenerative condition
– Supraspinatus, epicondylosis, patellar, achilles
• Etiopathogenic theory suggesting insufficient tensile
strength of the tendon exposed to external loads
which cause progressive damage
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6. Which of the following statements regarding chronic tendinopathy (lateral epicondylosis, patellar tendinosis, achilles tendinosis) is most correct?
A. Corticosteroid injections provide long term relief for patellar tendinosis
B. Corticosteroid injections provide long term relief for lateral epicondylosis
C. Eccentric strengthening is beneficial for lateral epicondylosis and patellar tendinosis
D. Concentric strengthening is more efficacious then eccentric strengthening in achilles tendinosis
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6. Which of the following statements regarding chronic tendinopathy (lateral epicondylosis, patellar tendinosis, achilles tendinosis) is most correct?
A. Corticosteroid injections provide long term relief for patellar tendinosis
B. Corticosteroid injections provide long term relief for lateral epicondylosis
C. Eccentric strengthening is beneficial for lateral epicondylosis and patellar tendinosis
D. Concentric strengthening is more efficacious then eccentric strengthening in achilles tendinosis
24%
2%
13%
62%
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“Lengthening of a contracting muscle” • Initial exposure to EC can result in muscle damage & delayed
onset muscle soreness
• Repeated EC results in protective adaptations in muscle
• EC leads to greater muscle mass, strength, power
• Tendons demonstrate increased stiffness, greater force needed for failure, and improved ability to absorb force at the myotendinous junction
Eccentric Strengthening
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Eccentric Strengthening
References Lateral epicondylosis
9 wks of treatment, 3x per week resulted in ▼ tendon thickness, ▼ pain and disability, ▲ strength
Crosier et al. Brit J Sports Med 2007
Patellar tendinosis
Meta-analysis of RCTs found EccS to be beneficial in treatment; step program or use of 25° decline board may have further benefit in treatment
Visnes et al. Br J Sports Med 2007; Young et al. Br J Sports Med 2005
Achilles tendinosis
EccS demonstrates benefit over usual care, and concentric strengthening; 70% improve with EccS
Mafi et al. Knee Surg Sports Traumatol Arthrosc 2001; Silbernagel et al. Scand J Med Sci Sports 2001
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Corticosteroid Injection
References Lateral epicondylosis
Beneficial for ▼ pain reduction for up to 8 weeks but inferior to other treatments for longer term
Coombes et al. Lancet 2010
Patellar tendinosis
Beneficial for ▼ pain reduction for up to 4-26 weeks with predictable relapse; failure to demonstrate tendon healing on imaging
Van Ark et al. Brit J Sports Med 2011; Fredberg et al. Arthritis Rheum 1998
Achilles tendinosis
Beneficial for short term pain reduction which is lost in the intermediate term
Fredberg et al. Scand J Rheumatol 2004
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Posterior Tibialis Tendon
• Acute or overuse injury • Risk factors; female, > 40 years,
obesity, diabetes, hypertension • Pain with passive dorsiflexion and
heel rise (posterior tibialis muscle is a plantarflexor and invertor of the foot)
• Treatment may extend 3-6 months • Rest, ice, NSAIDs, may boot for 3-6 weeks,
orthotics, PT, and eccentric strengthening
Reproduced with permission from Ortholnfo. © American Academy of Orthopaedic Surgeons, http://orthoinfo .aaos.org.
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Shoulder Pain
RC Tendonitis • Age < 35 • Typically acute onset • Pain with manual muscle
testing • Partial tears may be
associated with night pain
Impingement • Age > 35 • Overuse injury with an
insidious onset of pain • AC spurring & tendon
degeneration • Pain with overhead activity • Supraspinatus tendon most
commonly involved followed by infraspinatus
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Shoulder Pain Management Therapies
• Physical therapy
Beneficial for ▼pain and ▲function
• Subacromial Injection Improves abduction, ▼pain
• NSAIDs Likely beneficial vs. placebo (B)
• Extracorporeal shockwave therapy ECSWT helpful in chronic shoulder pain with calcific tendonitis
BMJ. www.clinicalevidence.com Cochrane 2009, 2008
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Rotator Cuff Tears
• Supraspinatus weakness • Weakness in external rotation • Positive impingement signs (Neer’s, Hawkin’s)
Tears more likely with increased age (> 60)
Murrell et al. Lancet 2001
3 positive signs (any age), or 2 positive signs and age > 60 = 98% probability of RC tear
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Biceps Tendon Rupture
• Long head of the biceps tendon most common • Risk factors include: ▲age, heavy overhead
activity, shoulder overuse injury, smoking, corticosteroids
• Audible “pop,” bruising, weakness (supination) • Surgical treatment debatable but consider for
athletes, manual laborers, and those who require maximal supination strength
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7. A 64-yo male with a 4-mo history of shoulder pain and LROM. No history of trauma or arthritis. Had pain for 2 mo and then noted onset of LROM. The best initial treatment for short-term pain relief & functional improvement includes which of the following?
A. Acetaminophen 650 mg po qid B. 3-4 weeks or oral prednisone C. Referral to physical therapy D. Reassurance and follow up in 2 months
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7. A 64-yo male with a 4-mo history of shoulder pain and LROM. No history of trauma or arthritis. Had pain for 2 mo and then noted onset of LROM. The best initial treatment for short-term pain relief & functional improvement includes which of the following?
A. Acetaminophen 650 mg po qid B. 3-4 weeks or oral prednisone C. Referral to physical therapy D. Reassurance and follow up in 2 months 2%
7%
11%
80%
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A 64-yo male with 4-mo history of shoulder pain and LROM. No history of trauma or arthritis. Had pain for 2 mo and then noted onset of LROM. The best initial treatment for short-term pain relief & functional improvement includes which of the following?
• Adhesive capsulitis • 3-4 weeks or oral prednisone (20 mg/d) was
superior to PT or acetaminophen in improved function and reduced pain in the short term (1-2 months) Cochrane 2006
Ann Rheum Dis 2004
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Adhesive capsulitis is associated with
diabetes, cardiac disease, thyroid
dysfunction, and Parkinson’s disease.
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Adhesive Capsulitis
• PT/analgesics = mainstay of treatment despite limited evidence
• PT + IA steroids better than PT alone at 3 mo
• Oral steroids ▼pain & ▲function at 1 mo
• Efficacy of capsular distension is equal to manipulation
• Stage I: “painful" stage, 6 wks to 9 months, slow onset of pain. As pain worsens, shoulder loses motion.
• Stage II: "freezing" stage, marked by a slow improvement in pain, but persistent LROM, generally lasts 4-9 months.
• Stage III: The final stage is the "thawing", during which shoulder motion slowly returns toward normal. This generally lasts 5-26 months.
Arth Rheum 2003: 48(3), 829
Cochrane 2006, 2008
J Should Elbow Surg 2009
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Enter question text...
A. Patient history B. Paresthesias in the radial 2 digits C. Nerve conduction velocities D. Ultrasound demonstrating compression of the
median nerve
8. The diagnostic test of choice for carpal tunnel syndrome is…
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Enter question text...
A. Patient history B. Paresthesias in the radial 2 digits C. Nerve conduction velocities D. Ultrasound demonstrating compression of the
median nerve
8. The diagnostic test of choice for carpal tunnel syndrome is…
1%
27%
3%
69%
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Carpal Tunnel Syndrome • Classic vs. Dynamic • Associated with thyroid, diabetes, pregnancy • Compression of the median nerve
Sensory ► radial 3 ½ digits Motor ► intrinsic thumb, radial lumbricals
• Flick test (most sensitive finding) • Phalen’s test • Monofilament testing • 2-point discrimination • Weak thumb abduction
D’Arcy et al. JAMA 2000 LeBlanc, AFP 2011
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Carpal Tunnel Syndrome
• Treatment Options – Wrist splints, ultrasound, yoga, carpal bone mobilization –
possibly beneficial in short term – Corticosteroid injection – beneficial at 1 & 4 mo, superior to
oral corticosteroids – Surgical release – beneficial over splinting at 6 mo
Surgical release to prevent progression of symptoms as opposed to “return to normal”
Cochrane 2009 AFP 2011: 83(8)
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Dupuytren’s Contracture
• Males > 40 years • 4th finger most common • Associated with northern European/Scandinavian ancestry,
hereditary, smoking, alcohol, and diabetes • Development of nodules to progressive fibrosis of the palmar
fascia causing shortening and thickening with subsequent flexion contracture of the digit
• CSI for painful nodules; splinting not helpful
• Collagenase injections • Surgical management Reproduced with permission from Ortholnfo. © American
Academy of Orthopaedic Surgeons, http://orthoinfo.aaos.org.
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Purulent Tenosynovitis
• Flexor tendons most common • Kanavel’s signs
– Slight digital flexion – Uniform volar swelling – Flexor tendon tenderness – Pain with passive extension
• S. aureus or Streptococcus Antibiotics and surgical consultation
Source: OpenI at U.S. National Library of Medicine
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9. Risk factors for plantar fasciitis include all of the following except…
A. Pes cavus foot structure B. Obesity C. Pes planus foot structure D. Normal ankle dorsiflexion
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9. Risk factors for plantar fasciitis include all of the following except…
A. Pes cavus foot structure B. Obesity C. Pes planus foot structure D. Normal ankle dorsiflexion 58%
18%
6%
18%
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Plantar Fasciitis Is More Likely to Occur in Persons Who…
• Are obese • Spend most of the day on their feet • Have limited ankle dorsiflexion, tight achilles • Have pes cavus or pes planus foot structure • Participate in excessive running
JBJS (Am) 2003; 85-A, 872-77 J Foot Ankle Surg, 2010
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Plantar Fasciitis
• Heel pain • Worse with first steps after
prolonged rest or first steps in the morning
• Tender at medial calcaneal tubercle
Cochrane 2009 JAAOS 2008 Foot & Ankle Intl 19(1): 1998
Reproduced with permission from Ortholnfo. © American Academy of Orthopaedic Surgeons, http://orthoinfo.aaos.org.
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Plantar Fasciitis Management
1. Initiate patient directed therapies – Relative rest, ice massage, analgesics, stretching, weight
loss 2. Initiate physician directed therapies
– Physical therapy, stretching, deep myofascial massage – Orthotics (B) – Night splint (B) – CS injection (B) – Autologous blood injection (B) – ECSWT is an option for chronic recalcitrant cases (B)
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Morton’s Neuroma
• Irritation, trauma or excessive force on the inter-metatarsal plantar nerve
• 3-4 web space most common • ♀ (8-10x) >> ♂ • Burning pain in foot with toe numbness • Palpable mass or click between metatarsals
(Mulder’s sign)
• Treatment: shoes with wide toe box and low heels, orthotics, injection [80% improve with these measures]
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Tarsal Tunnel Syndrome
• Entrapment of the posterior tibial n. just posterior to the medial malleolus
• Provoked by subtalar pronation • Can be mistaken for plantar fasciitis
– Nontender medial calcaneal tubercle
• Electrodiagnostics may be useful in diagnosis (C) – Problems with false negatives
• * Correct biomechanics and consider injection DARE 2006
Illustration courtesy of Steven Oh
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Answers
1. C 2. B 3. B 4. D 5. A 6. C 7. B 8. C 9. D