Chapter 20 Flashcards

1
Q

A Angle

A
  • measures patellar orientation to tibial tubercle
  • A angle of 35 degrees or greater has been correlated with patellofemoral pathomechanics resulting in patellofemoral pain
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2
Q

Joint Injuries: Knee Plica - Management

A
  • plica that becomes inflamed as a result of trauma treated with rest, anti-inflames and local heat
  • recurring condition, may require surgery
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3
Q

Joint Injuries: Knee Plica - Signs and Symptoms

A
  • Hx of knee injury
  • recurrent episodes of painful pseudolocking of knee
  • snap felt or heard during flexion
  • locking and snapping pain while ascending or descending stairs or squatting
  • little or no swelling or ligamentous laxity
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4
Q

Joint Injuries: Larsen-Johansson Disease

A
  • at inferior pole of patella
  • cause believed to be excessive repeated strain on patellar tendon
  • swelling, pain and point tenderness characterize it
  • XR
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5
Q

Joint Injuries: Larsen-Johansson Disease - Management

A
  • decrease stressful activities
  • ice knee before and after activities
  • ISOs for quads and hammys
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6
Q

Joint Injuries: Larsen-Johansson Disease - Signs and Symptoms

A
  • swelling
  • hemorrhaging
  • gradual detonation of apophysis
  • c/o severe pain when kneeling, jumping and running
  • point tenderness over anterior proximal tib tub
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7
Q

Joint Injuries: OsGood-Schlatter Disease

A
  • pain at the attachment of the patellar tendon to the tibial tubercle
  • most often avulsion # of tib tub
  • usually resolves around age 18
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8
Q

Joint Injuries: Osteochondral Knee Fractures - Management

A
  • refer to physician
  • CT or MRI
  • if still attached to bone, casted
    if not attached to bone, reattached or removed
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9
Q

Joint Injuries: Osteochondral Knee Fractures - Signs and Symptoms

A
  • c/o diffuse pain along joint line
  • immediate joint effusion
  • crepitus and pain with weight bearing when standing or walking
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10
Q

Joint Injuries: Osteochondritis Dessicans - Management

A
  • children —> rest and immobilization
  • may take 1yr to resolve
  • teenager/adult —> may warrant surgery
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11
Q

Joint Injuries: Osteochondritis Dessicans - Signs and Symptoms

A
  • c/o knee aching
  • swells recurrently
  • may catch or lock
  • may be atrophy of quadriceps muscle and point tenderness
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12
Q

Joint Injuries: Patellar Fracture - Management

A
  • XR
  • cold wrap
  • elastic compression and splinting
  • refer to physician
  • immobilized for 2-3 months
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13
Q

Joint Injuries: Patellar Fracture - Signs and Symptoms

A
  • hemorrhage
  • joint effusion
  • generalized swelling
  • indirect # causes capsular tearing, separation of bone fragments and possible tearing of quad tendon
  • direct # involves bone separation
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14
Q

Joint Injuries: Patellar Subluxation or Dislocation - Management

A
  • after reduction, knee immobilized in extension for 4 weeks or longer
  • crutches
  • horse-shoe shaped felt pad during activity
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15
Q

Joint Injuries: Patellar Tendinopathy (Jumpers Knee)

A
  • chronic inflammation developing in patellar tendon
  • develops in athletes from mechanical overloading of tendon (jumping)
  • acute tendinitis with active inflammation (3-6 weeks)
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16
Q

Joint Injuries: Patellar Tendinopathy (Jumpers Knee) - Management

A
  • Ice
  • ultrasound
  • deep transverse friction massage
  • eccentric exercising using squats on 25 deg incline board
17
Q

Joint Injuries: Patellar Tendinopathy (Jumpers Knee) - Signs and Symptoms

A
  • point tenderness with palpation on posterior aspect of inferior pole of patella
  • c/o dull achey pain after jumping or running
  • may be thickening of the tendon
  • pain disappears with rest but will return with activity
  • occasional feeling of “giving away”
18
Q

Joint Injuries: Patellofemoral Pain Syndrome - Management

A
  • proximal strengthening and neuromuscular reeducation
  • strengthening of the hip and core
  • orthotics to correct pronation
  • mcconnel taping
19
Q

Joint Injuries: Patellofemoral Pain Syndrome - Signs and Symptoms

A
  • tenderness of lateral facet of patella
  • swelling
  • dull ache in the centre of the knee
  • apprehensive with lateral patellar movement
20
Q

Meniscal Blood Supply

A
  • supplied by medial genicular artery
  • each meniscus can be divided into three circumferential zones
21
Q

Meniscal Blood Supply - Red Zone

A

outer or peripheral, one-third, good vascular supply

22
Q

Meniscal Blood Supply - Red-White Zone

A

moddle one third, minimal blood supply

23
Q

Meniscal Blood Supply - White-White zone

A

Inner one-third, avascular

24
Q

Q Angle

A
  • greater than 20 degrees could predispose athlete to patellofemoral pathology
25
Q

Special Tests: Anterior Cruciate Ligament Tests - Pivot Shift Test

A
  • determines anterolateral rotary instability
  • often used for chronic
  • sensitive with torn ACL
26
Q

Special Tests: Apley Distraction Test

A
  • distinguishes collateral ligament tears from capsular and meniscus tears
  • traction applied to the leg while rotating it back and forth
27
Q

Special Tests: Meniscal Tests

A
  • McMurray’s Test
  • Apley’s Compression Test
  • Thessaly Test
28
Q

Special Tests: Posterior Cruciate Ligament Tests - Posterior Sag Test (Godfrey’s Test)

A
  • observe both knees in flexion
  • injured side will sag posteriorly at tibia if PCL is damaged
29
Q

Special Tests: Valgus

A
  • MCL
30
Q

Special Tests: Varus

A
  • LCL
31
Q

what % of the population has a bipartite patella?

A

0.03