common hip concerns - · pdf filecommon hip concerns keith j. loud, md, msc ... missed dance...
TRANSCRIPT
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Common Hip Concerns
Keith J. Loud, MD, MSc
SAHM Workshop
March 10, 2017
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Case #1
ID: 13-year-old female dancer (all forms) presents with her mother
CC: 18 months of right hip pain
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Differential Diagnosis
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DDx
• Pelvis – Apophysitis of ASIS/AIIS, Iliac
Crest – Hip pointer – Avulsion of ASIS/AIIS
• Hip joint – SCFE – Developmental dysplasia
(DDH) – Legg-Calve-Perthes (LCP) – Femoro-acetabular
Impingement (FAI) – Labral tear – Septic arthritis
• Lateral thigh – Greater trochanteric bursitis
• Soft tissues – Iliopsoas strain/tenosynovitis – Adductor (groin) strain
• Appendicitis • GYN
– Cervicitis/PID – Ovarian Torsion – Pregnancy
• Lymphadenitis • Hernia
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Anatomy
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Muscles
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What do you want to know?
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HOP-ROM-S
• History
• Observation
• Palpation
• Range Of Motion
• Strength
• Specialized testing
• Sports specific skills
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History
• Acute vs. chronic problem? • Mechanism of injury? • Type(s) of activity, intensity, duration? • Pain
– Location – Timing (night-time?) – Characteristics (exacerbating/alleviating) – Intensity (on a 10 point scale)
• Mechanical symptoms (snapping, catching, popping, locking)? • Instability symptoms? • History of prior injuries? • Treatments trialed, and effectiveness? • Functional limitations?
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HOP-ROM-S
• Observation: No obvious swelling, redness, deformities • Palpation: Tender over anterior hip/groin in the soft
tissues • Range Of Motion: Full and equal on both sides • Strength: 5/5 on MMT; provocative on resisted hip
flexion • Specialized testing:
– Trendelenburg = Negative – FABER = Provocative – Ober = Negative – Thomas = Suggestive
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Specialized Testing
• FABER
• FADIR
• Ober
• Thomas Test
• Gait Assessment (Trendelenburg)
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F.A.B.E.R. Maneuver
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F.A.D.I.R.
Hip impingement test
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Ober Test
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Thomas Test
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Trendeleburg Gait
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When to image?
• Any unexplained unilateral complaints
• Any persistent unexplained bilateral complaints
• Red Flags = – Severe pain with trauma
– Inability to bear weight
– Pain which wakes from sleep
– Pain with fever
– Loss of internal rotation or aBduction
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X-rays
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Iliopsoas Tenosynovitis
• Also called “Hip Flexor”; can include bursitis
• psoas muscle originates from lumbar spine and joins iliacus muscle originating from ilium, both muscles insert at lesser trochanter of proximal femur
• innervation is L1, L2, and L3
• action is flexion and abduction of hip
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Etiology - Tight Hip Flexors
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Symptoms
• Anterior thigh pain, groin pain
• Snapping in medial groin or thigh
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Signs
• Patient may hold hip in flexion and external rotation
• May limp to prevent hyperextension
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Diagnosis
• Exam findings
– Positive Thomas test
– Provocative active hip flexion and passive hyperextension
• Testing
– Not indicated
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Treatment
• Conservative measures – Relative rest
– Ice
– Compression and elevation not feasible
• Short course of NSAIDs
• Physical therapy
• Rare corticosteroid injection of iliopsoas bursa
• Even rarer fractional lengthening of iliopsoas tendon at musculotendinous junction
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Prognosis
• Very good
• Complications
– Persistent bursitis
– Possible anterior labral injury
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Case #2
ID: 12-year-old female dancer (all forms) presents with her mother
CC: Hip pain bilat (R>L) past few mo; worse in past wk
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Another Snapping Hip
• Acute vs. chronic problem? Subacute • Mechanism of injury? Dance; no specific trauma • Type(s) of activity, intensity, duration? Dance 3 days/week 10
hours/week • Pain
– Location: Outside aspect of hip – Timing: Increasing in duration – Characteristics (exacerbating/alleviating): Activity aggravates – Intensity (on a 10 point scale): 5/10 current, 9/10 today while walking
• Mechanical symptoms (catching, popping, locking)? Yes, it “snaps” • Instability symptoms? No • History of prior injuries? None • Treatments trialed, and effectiveness? Not tried • Functional limitations? Missed dance recently; does not miss school; does
not wake from sleep
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HOP-ROM-S
• Observation: No obvious swelling, redness, deformities • Palpation: Tender over lateral thigh at greater
trochanter of proximal femur • Range Of Motion: Full and equal on both sides • Strength: 5/5 on MMT; provocative on resisted hip
aBduction • Specialized testing:
– Trendelenburg = Negative – FABER = Negative – Ober = Provocative of pain – Thomas = Negative
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Greater Trochanteric Bursitis
• Inflammation occurs in the lubricating sac located between the midpoint of the trochanteric process of the femur and the gluteus medius tendon/iliotibial tract
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Epidemiology
• “One of the most common causes of hip pain in adults”
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Etiology Repetitive stress injury causing normally paper-thin bursal wall to thicken, fibrose, and gradually loses its ability to lubricate the outer hip.
Causes:
• Tight ITB
• Lumbar spine disease
• Leg length discrepancy
• SI joint disorders
• Knee an d ankle problems
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Signs and Symptoms
• Lateral hip pain over outer thigh
• Difficulty walking
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Diagnosis
• Exam findings
– Point tenderness
– Positive Ober test
• Testing
– Occasional diagnostic injection with local anesthetic +/- corticosteroid
– No imaging needed
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Treatment
• Conservative Measures
• Amenable to topical NSAIDs (ketoprofen, diclofenac)
• Physical therapy especially for Ober stretch
• Can trial iontophoresis
• Occasional corticosteroid injection
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Prognosis
• Very good
• Complications are rare
• Persistence
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Case #3 – Groin Pain
ID: 16-year-old male basketball player presents with his mother
CC: 3 weeks of left groin pain
PMHx: Subtle slipped capital femoral epiphysis (SCFE) diagnosed after physeal fusion at age 14. Responded well to physical therapy focused on iliopsoas.
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SCFE
• Displacement of the capital femoral epiphysis (head) from the metaphysis (neck) through the physeal plate
– Most commonly posterior/inferior
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Klein’s Line
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Epidemiology
• 1:10,000 to 1:1000 adolescents
• 1.5:1 male:female
– ~ 13.5 years in males, 12 years in females (PHV)
• Slightly more common in African-Americans
• Bilateral 20%
• Unilateral L > R
– 30-60% risk of subsequent contralateral slip
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Etiology
• Risk factors
– Obesity
– Renal failure
– Radiation and chemotherapy treatments
– Genetic disorders
– Endocrine abnormalities
• Hypothyroidism
• Growth hormone deficiency
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Presumed Pathophysiology
• Occurs through hypertrophic zone of growth plate
• Strain of weight through “vertical” physis
• Slips into pure extension
• Amount of deformity much greater than appears on x-ray
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Symptoms
• Nonradiating, dull, aching, chronic or intermittent pain in the – Hip, groin, trochanter 50% – Knee 26% – Thigh 16% – Nonpainful limp 8%
• Often no antecedent trauma • Increases with physical activity • Timing
– Chronic (most common) > 3 weeks – Acute (10-15%) < 3 weeks – “Acute on chronic”
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Signs
• Trendelenburg or antalgic (limp) gait
• Affected leg held in externally rotated position
– May be shortened by 1-3 cm
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Diagnosis
• Exam findings – Anterior hip tender to palpation (not knee)
– Restricted internal rotation, aBduction, and flexion
– Hip passively flexed from extended position aBducts and externally rotates
• Testing: BILATERAL lateral (frogleg) and AP pelvis x-rays – Consider TSH if height < 10th%ile
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Treatment
• Goals:
– Prevent further slip and deformity
– Maintain adequate ROM
• Gold standard In situ surgical pinning
– Stable (nondisplaced, “preslip”): 24-72 hours
– Unstable (displaced, unable to bear weight): within 24 hours
– If in doubt, send to ER
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Prognosis
• Risk of symptomatic osteoarthritis at age 50
– Mild slip ~ 5%
– Moderate ~10%
– Severe > 25%
• Complications
– Avascular necrosis
– Chondrolysis
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HOP-ROM-S
• History: Insidious onset discomfort with activity, but no trauma; feels a “click”
• Observation: No obvious swelling, redness, deformities • Palpation: Tender over anterior hip and groin • Range Of Motion: Lacks passive flexion on the left • Strength: 5/5 on MMT • Specialized testing:
– Trendelenburg = Negative – FABER = Suggestive; “FADIR” highly provocative – Ober = Negative – Thomas = Negative
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FAI after SCFE
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Femoroacetabular Impingement
www.hipfai.com
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Epidemiology
• First described in 1999
• “seems to account for a large proportion of previously undiagnosed cases of hip pain in young adults”
– Wall, PM&R. 2013 Feb 15. pii: S1934-1482(13)00086-5. doi: 10.1016/j.pmrj.2013.02.005. [Epub ahead of print]
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Etiologies
• SCFE
• LCP
• DDH
• Healed femoral neck fractures
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Signs and Symptoms
• Persistent unexplained pain
• “Pinching” sensation
• Lack of or provocative flexion of the hip
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Diagnosis
• Exam findings: Positive anterior hip impingement test = – Flexion
– ADduction
– Internal Rotation
• Testing – AP pelvis and cross-table lateral view, to measure
“alpha angle”
– May prove elusive, even on CT or MRI
– Diagnostic arthroscopy advocated
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Treatment
• “FAI surgery has evolved rapidly and at a pace far quicker than our understanding about the natural history and epidemiologic characteristics of the condition”
but
• “the review literature appears to promote initial non-operative treatment for FAI”
» Wall, PM&R. 2013 Feb 15. pii: S1934-1482(13)00086-5. doi: 10.1016/j.pmrj.2013.02.005. [Epub ahead of print]
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Prognosis
• Too early to estimate
• Complications:
– Major cause of acetabular labral tears
– Long-term osteoarthritis of the hip
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Acetabular Labral Tears
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Epidemiology
• First reported in 1957
• Previously thought to be an uncommon injury, in some series – 22% of athletes with groin pain
– 55% of patients with mechanical hip pain of unknown origin
• Mean time to diagnosis 2 years
• Female slightly > male
• Most frequently anterior labrum torn
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Etiology
• High energy trauma
• FAI
• Capsular laxity/hip hypermobility
• Dysplasia
• Degeneration
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Symptoms
• Anterior hip pain
• Groin pain
• Insidious onset
• Chronic dull pain with sharp exacerbations due to activity
• Clicking, locking or catching, giving way
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Signs
• Perhaps limited ROM
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Diagnosis
• Exam findings inconsistent
– Positive FADIR
• Testing
– Xray to rule out other conditions
– MR arthrogram (60+% sensitive, 44+% specific) > MRI (only 30% sensitive, 36% specific)
– Arthroscopy still considered gold standard
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Treatment
• Relative Rest, Ice, NSAIDs
• Physical therapy for 10-12 weeks
• Fluoroscopically/ultrasound guided intra-articular injections
– Diagnostic with local anesthetic
– Therapeutic with corticosteroid
• Arthroscopic or open surgical resection or repair
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Prognosis
• Short term studies generally favorable
– As many as 73% continuing in athletics 1.5 years after surgery
– Lack of long term data problematic for payors
• Surgical complications rare for arthroscopic procedures (1.5%)
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Femoral Neck Stress Fracture
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Epidemiology
• Runners, gymnasts, dancers, figure skaters
• Less common than
– Tibia
– Fibula
– Metatarsal
– Tarsal navicular
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Etiology
• Repetitive overuse injury (fatigue fracture)
• Impaired skeletal resilience (fragility fracture)
• Leg length discrepancy (longer side)
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Symptoms
• Groin pain; can be elusive to identify
• Signs
– Limp associated with running
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Diagnosis
• Exam findings
– Often no specific abnormalities
– Possibly positive “hop” test
• Testing
– Xray may not be sensitive
– Must maintain index of suspicion for MRI
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Treatment
• Restrict activity until pain free
– May need crutches for non or partial weight bearing
– Very gradual return to activities
• Tension side fractures may need early pinning or bone grafting
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Prognosis
• Generally good
• Complications
– Nonunion (tension side)
– Displacement
• AVN
• FAI
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Iliac Wing Avulsion Fractures
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Etiology
• Soccer players, sprinters
• Around peak height velocity
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Symptoms
• Anterior hip pain
• Can radiate to groin if AIIS
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Diagnosis
• Exam findings
– Point tenderness over ASIS or hip flexor mass
• Testing
– May need oblique hemi-pelvis view to visualize subtle avulsion
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Treatment
• Short course partial weight bearing on crutches
• Prolonged period of limited activity
– Fracture under tension
• Emphasis on iliopsoas flexibility in subsequent rehab to preclude recurrence
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Complications
• Large displacement Surgical fixation
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Take Home Points
• Localize to iliac wing/pelvis, hip joint, or thigh/proximal femur
• Painful and/or reduced internal rotation is concerning
• Image bilateral hips via AP pelvis with frog-leg lateral
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Physical examination reminders
HOP-ROM-S
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Observation
• Deformities
• Tumor
• Discoloration – rubor, pallor, ecchymosis
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Palpation
• Calor
• Dolor
• Pulses
• Sensation
• Point tenderness
– Bone
– Muscles
– Joint line
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Palpation Landmarks
Bone
• ASIS
• Iliac Crest
• Iliac Tubercle
• Greater Trochanter & Bursa
• Symphisis Pubis
• PSIS
• Ischial Tuberosity
• SI joint
Soft Tissue
• Inguinal ligament
• Sartorius Muscle
• Adductor Longus Muscle
• Inguinal nodes in femoral triangle
• Iliopsoas Muscle
• Rectus Femoris Muscle
• Gluteus Medius Muscle
• Gluteus Maxiums Muscle
• Hamstring Muscle Group
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Range of Motion (ROM) Norms
In neutral (anatomic) position
• Flexion: 120o
• Extension: 30o
• ABduction: 45-50o
• ADDuction: 20-30o
• Internal rotation: 35o
• External rotation: 45o
At 90o flexion
• ABduction: Closer to 90o
• ADDuction: Closer to 15o
• Internal rotation: 35o
• External rotation: 45o
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Strength Testing
• Manual Muscle Testing
– 1/5 = Minimal contractility
– 2/5 = Complete ROM with gravity eliminated
– 3/5 = Complete ROM against only gravity
– 4/5 = Complete ROM against gravity and some resistance
– 5/5 = Complete ROM against gravity and can overcome resistance