Week 5- Knee Clinical Presentations Flashcards
PART 1: COMMON PRESENTATIONS AND FRACTURE SCREENING
PART 1: COMMON PRESENTATIONS AND FRACTURE SCREENING
Knee Pain Common Clinical Presentations.
- Patellar Fracture
- Tendon Rupture
- Osgood-Schlatter Disease
- Articular Cartilage Defects
- Meniscus Lesion
- Cruciate & Collateral Ligament Sprains
- Patellofemoral Instability
- Patellofemoral Pain Syndrome
- Osteoarthropathy
- Arthrofibrosis
- Genu Recurvatum
- Patellar Tendinopathy
- ITB Friction Syndrome
- Plica Syndrome
- Bursitis
- Osgood-Schlatter Disease
- Peripheral Nerve Entrapment
What are the 2 Decision Rules for Fracture Screening at the knee?
- Pittsburgh Knee Decision Rule
- Ottawa Knee Decision Rule
What are the (3) criterion for the Pittsburgh Knee Decision Rule?
- ) Hx trauma/fall
- ) Instability to bear weight x 4 steps immediately and in ED
- ) Age <12 OR >50
What are the (5) criterion for the Ottawa Knee Decision Rule?
- ) TTP head of fibula
- ) Instability to bear weight x 4 steps immediately and in ED
- ) Age >/= 55 years
- ) Inability to flex knee 90 degrees
- ) Isolated TTP patella
What are the Pittsburgh and Ottawa Knee Rules used for?
-Used to identify which cases of knee injury require radiographic imaging.
PART 2: PATELLAR FRACTURE
PART 2: PATELLAR FRACTURE
Patellar Epidemiology:
- Makes up ___% of all fractures.
- Most common ___-___ y/o.
- ______ 2x > _______
- 50% ___-________
- 1%
- 20-50
- males 2x > females
- non-displaced
What are (2) common MOIs for patellar fracture?
- Fall onto anterior knee.
- Sudden quad activation.
Patellar Fracture Symptomology:
-In a patellar fracture the patient will report ________ knee pain and painful/inability to _______ the knee.
- anterior knee pain
- inability to extend knee
Patellar Fracture Physical Examination:
- Palpable gap at fracture site.
- Local tenderness.
- Painful ___________ > _______ for knee extension.
- Painful end-range _______ ROM.
- Antalgic gait.
- painful resistance testing > AROM
- painful end range flexion
PART 3: TENDON RUPTURE (PATELLAR AND QUAD)
PART 3: TENDON RUPTURE (PATELLAR AND QUAD)
Tendon Rupture Epidemiology:
- _______ Tendon Rupture = < 40 y/o.
- _______ Tendon Rupture = > 40 y/o.
- Which tendon rupture is 4-8x more likely in males?
- Patellar tendon rupture = <40 y/o
- Quad tendon rupture = >40 y/o
- Quad tendon rupture
What are the risk factors for tendon rupture? (7)
- local steroid injection
- prolonged corticosteroid use
- RA/Lupus
- CT (connective tissue)/infectious diseases
- Arteriosclerosis
- DM
- Hyperthyroidism
Tendon Rupture History:
- Related to _______ overload extensor mechanism/trauma.
- Sudden onset f/b fall.
- Quad rupture common MOI?
- Patellar rupture common MOI?
- Hx of what 3 things?
- eccentric overload
- rapid quad contraction (regaining balance)
- jump landing
- Hx of degenerative tendinopathy, TKA, and ACL reconstruction.
Tendon Rupture Symptomology:
-Where will patients with quad/patellar ruptures report pain?
-anterior knee
Tendon Rupture Physical Examination:
- Absent/painful active knee __________.
- Painful knee _______ ROM.
- Palpable defect.
- Antalgic gait/unable to walk.
- Absent/painful active knee extension.
- Painful knee flexion ROM.
PART 4: OSGOOD SCHLATTER DISEASE
PART 4: OSGOOD SCHLATTER DISEASE
What is Osgood Schlatter Disease?
-Apophysitis (inflammation to growth plates) of tibial tubercle.
Osgood Schlatter Epidemiology/Hx:
- What population is this most common in?
- Involves repetitive loading into knee ________.
- Common __________.
- young adolescent (males (10-15) > females (8-13))
- flexion
- bilaterally
Osgood Schlatter Disease Symptomology:
-Patient will report pain in ________ knee and aggravation with _______/resisted knee ________.
- pain in anterior knee
- aggravated with activity/resisted knee extension
Osgood Schlatter Disease Physical Examination:
- Local TTP
- Prominent ______ ______ on visual inspection.
- Pain end-range knee ______ ROM.
- Knee __________ pain with resistive testing > AROM.
- Possibly painful with tuning fork.
- prominent tibial tubercle
- pain end-range knee flexion
- knee extension pain resistive > AROM
PART 5: ARTICULAR CARTILAGE DEFECTS
PART 5: ARTICULAR CARTILAGE DEFECTS
What is Osteochondritis Dissecans?
-Type of articular cartilage defect involving the separation of articular cartilage from subchondral space.
Osteochondritis Dissecans Epidemiology:
- What is the most common site?
- Is it more common in males or females?
- Greatest ___-___ y/o active individuals.
- Common _________.
- Most common on lateral side of medial condyle.
- males > females
- 10-20 y/o active individuals
- bilaterally
Osteochondritis Dissecans Hx:
- Traumatic MOI (40-60%) juveniles vs. insidious.
- ___________ within 2 hours. What is this?
-Hemiarthrosis within 2 hours. Hemiarthrosis is articular bleeding into the joint cavity.
Osteochondritis Dissecans Symptomology:
- ___________ knee pain.
- Does activity make it better?
- Stiffness/swelling with activities.
- ________/________/_______
- non-specific knee pain
- No, activity makes it worse and rest makes it better.
- grinding/locking/catching
Osteochondritis Dissecans Physical Examination:
- TTP at the femoral _______, medial and lateral joint lines.
- Antalgic gait
- Knee effusion.
- Limited painful knee _________.
- TTP at femoral condyle
- limited/painful knee ROM (flexion/extension)
What are some common surgical interventions used for articular cartilage defects? Explain each.
Arthroscopic lavage & debridement
-Probe with debridement of loose fragments.
Microfracture
-If chondral, drill holes leading to bone supply for vascularization.
Autologous Osteochondral Mosaicplasty Grafting
-Cartilage taken from other areas and placed.
Autologous Chondrocyte Implantation (ACI)
-Grow in lab, place back in.
PART 6: MENISCUS LESION
PART 6: MENISCUS LESION
Meniscus Lesion Epidemiology/Hx:
- Incidence 12-14%
- What injury is often concomitant with a meniscus lesion?
- Audible “pop” during _____________.
- Delayed _________ (__-__ hours following injury)
- ACL Injury
- directional change
- delayed effusion (6-24hrs)
Meniscus Lesion Symptomology:
- _______/_______/__________ at the knee.
- Local knee pain.
-catching/locking/giving way of knee
Meniscus Lesion Physical Examination:
- Pain at end-range knee _________.
- Pain/limited _______ ROM.
- Painful/weak ___________ resistive testing.
- What 4 tests may be + if Meniscus Lesion is present?
- end-range knee extension
- pain/limited flexion ROM
- flex/ext resistive testing
- McMurray’s, Thessaly, Appley’s. Varus/Valgus Stress Tests
PART 7: ACL, PCL, MCL, LCL
PART 7: ACL, PCL, MCL, LCL
- What is the function of the ACL?
- What is the function of the PCL?
- What is the function of the MCL?
- What is the function of the LCL?
- ACL = Prevent anterior translation of tibia on femur.
- PCL = Prevent posterior translation of tibia on femur.
- MCL = Prevent valgus collapse.
- LCL = Prevent varus collapse.
ACL Epidemiology:
- What is a common issue that occurs years after ACL injury?
- ACL injury increases the risk to what else?
- Knee OA
- Stabilizers of the knee.
ACL Clinical Correlations:
- _______ 2-9x more likely. Why?
- Decreased ________/_____ strength.
- Duration of activity/fatigue.
- Dry/artificial turf.
- High BMI.
- Females 2-9x due to jump landing mechanisms, greater Q angle, narrower intercondylar notch, and hormone laxity.
- Decreased hamstring/core strength.
ACL Hx:
- Are ACLs more likely from contact or non-contact?
- What are some MOIs?
- Contact injury MOI involves varus/valgus stress imposing shear force on joint.
- More likely from non-contact.
- Pivoting with planted foot and extended knee, cutting maneuvers, landing in full knee extension, hyperextension/hyperflexion.
ACL Symptomology:
- Feelings of ________ at knee.
- C/o severe pain with audible _____ and immediate _______.
- Feelings of instability.
- C/o severe pain with audible “pop” and immediate swelling.
ACL Physical Examination:
- ________-________ posture
- Knee joint effusion
- Antalgic gait
- AROM/PROM/Resistive painful/limited in what plane?
- _____/________ end-feel.
- Excessive laxity with KT-1000 arthrometer test.
- What 3 tests may be + with ACL Sprain?
- weight-shifted posture
- AROM/PROM/Resistive limited/painful in ALL PLANES.
- Boggy/guarded end-feel
- Pivot Shift, Anterior Drawer, Lachman’s Tests
PCL Epidemiology/Hx:
- __-__% of knee injuries.
- Audible _____ with injury.
- What are some common MOIs?
- 3-20% of knee injuries
- audible “pop”
- Posterior force at proximal anterior tibia, violent hyperextension, fall on flexed knee with PF.
PCL Symptomology:
- Local _________ knee pain aggravated with deceleration and kneeling.
- Feeling of LE _________.
- local posterior knee pain
- Feeling of LE giving way (instability)
PCL Physical Examination:
- Limited knee _______ in stance phase of gait.
- Effusion
- Limited/painful knee _______ ROM.
- Painful with resistive testing of extension > 90 degrees.
- What test may be + with PCL Sprain?
- limited knee extension in stance phase
- Limited/painful knee ext/flex
- Posterior Drawer Test
MCL Epidemiology:
- Is this injury concomitant with other ligamentous injuries at the knee?
- Correlation with soccer/football/hockey.
- High grade injuries may lead to chronic knee ___________.
- What do we need to worry about with deep MCL tears?
Yes, involved in ~42% of ligament injuries at the knee.
- chronic knee instability
- Worry about connection with meniscus.