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KIN 191AAdvanced Assessment of Lower
Extremity Injuries
THE PELVIS AND THIGHINJURIES
INTRODUCTION• MUSCLE STRAINS• BURSITIS• DEGENRATIVE HIP CHANGES• PIRIFORMIS SYNDROME• ILLIAC CREST CONTUSION• QUADRICEPS CONTUSION• HIP DISLOCATION• FEMUR FRACTURES/STRESS FRACTURES
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• SI JOINT DYSFUNCTION• OSTEITIS PUBIS• AVULSION FRACTURES (ASIS, AIIS, pubis, ischial tuberosity)
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MUSCLE STRAINS
• Typically associated with dynamic overload to eccentric contractions
• Pain usually felt at musculotendinous junction and/or at insertion site
• Most involved include quadriceps, hamstrings, hip flexors, adductors
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BURSITIS• Trochanteric– Either from direct trauma or repetitive friction
from IT band during knee flexion/extension– Often referred to as “snapping hip syndrome”
• Ischial– Either from direct trauma or movement in sitting
position (rowing, biking, etc.)• Iliopsoas– Anterior hip pain, difficult to differentiate from hip
flexor strain
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DEGENERATIVE HIP CHANGES
• Develop secondary to repetitive trauma, age, acute injury– Arthritis– OCD– Avascular necrosis
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PIRIFORMIS SYNDROME• “Sciatic” nerve proximity to
piriformis muscle• Spasm or hypertrophy of muscle
can produce “sciatica” – referred pain to buttocks or posterior leg
• May have pain with hip flexion motions
• Must evaluate sensory and motor function of involved structures
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ILIAC CREST CONTUSION
• Commonly referred to as “hip pointer”
• Attachment site for abdominal, lumbar and pelvic/hip musculature
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QUADRICEPS CONTUSION
• Significant bleeding leads to hematoma formation
• Typically presents with significant loss of ROM to knee flexion
• Risk of myositis ossificans• Must treat appropriately
acutely
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HIP DISLOCATION• Posterior more common
than anterior• Often associated with
femoral neck and/or acetabular fractures
• Classic presentation is adduction and internal rotation
• Neurovascular considerations
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FEMUR FRACTURES
• Involve significant trauma – atypical in athletics
• Present with immediate loss of function, pain and deformity
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STRESS FRACTURES
• Femoral shaft and neck are most common sites
• Difficult to differentiate from soft tissue injury (strain or tendonitis)
• Differential diagnosis made via bone scan
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SI JOINT DYSFUNCTION
• Collective term for multiple non-specific pathologies
• If accentuated motions occur at SI joint due to trauma or repetitive stress typically presents with rotation of ilium on sacrum
• May present as abnormal position due to muscle tightness/weakness or imbalances
• Must conduct comprehensive neurological evaluation since symptoms often replicate nerve root injury
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OSTEITIS PUBIS
• Chronic inflammatory condition at symphysis pubis from repetitive stress to area primarily from running
• May present with groin pain, pubic symphysis pain and discomfort with abdominal/hip adduction exercises due to muscular attachments
• Difficult to treat – may need injection
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AVULSION FRACTURES
• ASIS – Sartorius
• AIIS – Rectus femoris
• Pubis – Adductors
• Ischial tuberosity – Hamstrings
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