Week 1 1-B - The Hip Flashcards
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Sources of Hip Pain
Labral tear Loose body FAI Capsular laxity Hip dysplasia Chondral damage Joint degeneration / OA (Intra-articular/Extraarticular)
Intraarticular
Sources of Hip Pain
Iliopsoas tendonitis Iliotibial band syndrome Greater trochanteric bursitis Gluteus medius or minimus tendonitis Stress fracture / reaction Adductor strain Hamstring strain / rupture Piriformis syndrome (Intra-articular/extra-articular)
Extra-articular
Sources of Hip Pain
Sports hernia (core injury
Osteitis pubis
Lumbar spine / SIJ
Pain referred to hip region/Intra-articular)
Pain referred to hip region
Iliotibial Band Syndrome (ITBS)
People complain of pain in the (medial/lateral) hip/knee.
lateral
Iliotibial Band Syndrome (ITBS)
Most common cause of (medial/lateral) knee pain
2nd most common cause of knee pain in runners
Occurs in cyclists frequently
(15% of overuse injury)
lateral
Lateral Hip / Knee Pain Differential Diagnosis
PFPS DJD lateral compartment Lateral meniscal pathology LCL sprain Superior tib-fib joint sprain Popliteal or biceps femoris tendonitis Common peroneal nerve injury
Referred pain from lumbar spine
What Level?
L5
ITBS
Clinical Presentation
Pain 2 cm (above/below) lateral joint line - (femoral epicondyle)
Usually at same point (after/of) run / bike - (irritation w/ repetition)
Stabbing / sharp pain - may not be able to continue
up/down stairs
after sitting for a period of time
Pain (increases/diminishes) with rest
above; of; diminishes
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ITB Anatomy
____ crest to (inferior/superior) aspect of lateral femoral epicondyle, then again at ______ tubercle
Unattached portion where it crosses knee joint
iliac; superior; Gerdys
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ITB is a thickening of the _____ lata
fascia
What attaches to the ITB?
Gluteus (maximus/minimus
TFL/Vastus intermedius)
(Medial/Lateral) retinaculum of the patella
maximus; TFL; lateral
The ITB attaches the full length of the femur
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ITBS
Small portion where ITB is not attached
People have pain (above/below) the joint line
above
ITB Anatomy
“Tendon” portion - Attachment to femur
“Ligament” portion - Controls tibial (EROT/IROT)
Tendon connects muscle to bone – the muscle being the TFL – bone being the femur .
Ligament attaches bone to bone – tibia and femur
IROT
MR of distal femur
Layer of fat tissue deep to ITB: (Highly/Lowly) innervated (Highly/Lowly) vascular Pacinian corpuscles (BURSA/NO BURSA) PRESENT
At _° knee flexion, ITB compresses fat layer below against fem epicondyle
Lot of pain receptors due to being highly vascular
If you constantly compress that area it will be irritated.
Highly; Highly; NO BURSA; 30;
Iliotibial Band Syndrome
Biomechanical Etiology – Current Concept (Fairclough et al., 2006, 2007)
IT band is attached to the distal femur and cannot rub on epicondyle
IT band is compressed against epicondyle during movement
Tibial IROT occurs on femur with knee (flexion/extension)
Tibial IROT (decreases/increases) compression
Pain due to compression of fat layer under ITB vs repetitive friction
flexion; increases;
ITBS Risk Factors
Cyclists
Toe (in/out) position – pedals
Saddle too high, too far back
Bike fit?
Bike fit – can cause irritation of the IT band.
Toe in – (decreases/increases) internal rotation
in; increases;
ITBS
Clinical Tests
(+/ +/-) Noble compression test
Common: (+/ +/-)Thomas test
(+/ +/-) Ober’s test?
+; +; +/-
Clinical Findings in ITBS
significantly (higher/lower) Ober measurement (1.2°)
weaker hip (internal/external) rotator strength (1.2 Nm/kg)
Greater hip (internal/external) rotation motion (3.7°) Peak motion while running
lower; external; internal;
ITBS Biomechanics
Increased (ABD and EROT/ADD and IROT) at mid stance
(IROT/EROT) of leg increases with fatigue during running
ADD and IROT; IROT
Biomechanics to Consider
Associated with ITBS
(Narrow/Wide) Step Width - (cross over pattern)
Narrow
Step Width
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