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Ch 7 Patellofemoral

Ch 7 Patellofermoral

An acute or direct blow to the PF joint, would cause? Contusions and fractures
An onset of an injury by dynamic overload of musculotendinous unit, would cause? Strains or ruptures of the patella tendon
A chronic injury to the PF joint such as walking or running( low energy trauma) would cause? exacerbation of patellar maltracking problems- can lend to tendinitis, bursitis, fat pad syndrome or subtle subluxations
When the location of pain is radiating medially or laterally from the patella, what does this indicate? Pathological glide within the trochles or an abnormal tilt.
When the location of the pain is posterior to the PF joint, what doest this indicate? Synovitis ( thought pain can radiate to any area of the knee)
When the location of the pain referred pain to anterior knee, this would indicate? Legg-clave perthes disases or slipped captial fermoral epiphysis
When asking the History what questions which may place excressive or unaccustomed forces on the PF joint? Change in level of activity? change in surfaces, change in footwear or equipment?
Prior surgery to the PF joint can result in? Inflammation, abhesion, or entrapment of the patella restraints- results in painful movement and reduced ROM.
Prior injury to the PF joint, can also result in? May alter the biomechanices of the extensor mechanism.
Injuries to area below and above the PF joint can also affect the PF joint such as? Foot pathology, recurrent ankle sprains, achilles tendon pathology, knee sprains, injury to the hip, or conditions involving the lumber spine.
Inspection of the PF joint Patella alta is? Abnormally long patella tendon
Patella alta consequences are? Increased patella glide, Decreased quad strength, Increased in PF compressivce forces when the knee flexed
Inspection of the PF joint Patella Baja is ? Abnormally short patella tendon, Arthrofibrosis after surgery or injury.
Patella Baja consequences are? Decreased patella glide, Decreased tibiofemoral ROM, dreaced quad stenght, increased PF compressive forces when the is flexed.
Inspection of the PF joint Squinting patella causes? Hip anteversion, internal femoral rotation, internal tibial rotation, Arthrofibrosis after suergery or injury?
Squinting patella conseqences are? increased Q angle, Tight medical retinaculum, maltracking of the patella, Altered PF compressive forces
Inspection of the PF joint "frog Eyed" patella casues? hip retroversion, External femoral rotation, external tibial rotation.
Frog Eyes patella consqences are? increased lateral patellar glide, patellar maltracking, dreaced quad strenght, increased PF compressive forces when knee flaxed.
Genu Varum has what kind of affect on the PF joint? Increased compressive force on the lateral patellar facets
Genu valgum has what kind of affect on the PF joint? excressive lateral force, increasing the pressure on the medical and odd facet
Genu recurvatum has what kind of affect on the PF joint? Additional pressure on the superior articular surfaces
Inspection of Q angle what are the degrees for both males and females? Males 13 degrees, and females 18 degrees
When performing tubercle sulcus angle, what is does the degrees indicate? if the tuberosity is more an 10 degrees lateral to the inferior pole, the patient is predisposed to lateral-patellat tracking.
What does antenersion mean? A forward bending or angulation of a bone or ogran
What kind of affects does a q angle have on the patella? Increaced Q angle force placed on the medial patellar facet, medial patellar retinaculum and lateral border of the femoral trochlea
When the PF joint is at 0 degrees of extension and rest, where is the facet? Patella reating on the suprapatella fat pad on the distal femoral shaft
When the PF joint is ar 20 degress of flexion, facet in contact with the femoral trochlear groove? Inferior portion of the facet is in contact with the femoral trochlear groove.
At 45 degrees where is the contact on the femoral trochlear groove/ Medial and later facet
At 90 degrees where is the facet in contact with the femoral trochlear groove? Largest contact area across the medial and lateral facet
At 135 degree of flexion where is the facet in contact with the femoral trochlear groove? Odd facet
Clarke's sign for chondromalacia patella postive test results in/ patient experiences patellofemoral pain and inability to hold the contraction
Clark's sign for chondromalacia patella implication are? Possibly chondromalacia patella
Patella glide test postive results for medial glide? The patella should glide one -two quadrants (one-half its width)movement of less is hypomobile medial glide, Movement more than two quadrates results in hypermobile medial glide
Patella gilde test postive results for lateral glide> Normal lateral motion 0.5-2.0 quadrate of glide. less than hypomobile, more hypermobile lateral glide
Patella tilt test postive results are? normally results in lateral border raising 0-15 degrees, more than 15 degrees is hypermobile lateral tilt, less than 0 hypomobile
Dislocating or subluxation patella MOI is? During extenion of the knee or an eccentric contraction of the quads within the last 30 degrees of ROM, valgus forces may also be assoicated
Morphologic means? Changes is form or structures with regard to function
Apprehension test for a subluxating/ dislocating patella postive results in? Contraction of the quads by the patient to guad against dislocation of the patella. Demostrate apprehension verbally or thought facial expression
Apprehension test implications are? Laxity of the medial patellar retinaculum, predisposing the patient to patellar subluxation or dislocation
what is the MOI of Patellar tendinitis? Repeated activitu involving resisted knee extension (jumping)or secondary to contusive forces on the patella
What is the MOI for Patellar tendon rupture? Dynmain overload of the entensor mechanism secondary to entending the knee against resistance or forcefull eccentric contraction of the quads
what is the MOI for prepatellar bursitis? Direct trauma to the bursa or overuse
what is the MOI for synovial plica syndromes? Friction casued by the plica rubbing a femoral condyle
Stutter test for a medial synovial plica postive results in? Irregular motion or stuttering between 40-60 degrees as the plica passes over the medical condyle
what is the MOI for Sinding-larsen johansson disease? Repetitive stresses from running and jumping, Superior or inferior patellar pole point tenderness (insidious)
What is the MOI for Osgood schlatter diseae? Stress placed on the tibial tuberositys growth plate by forcful contraction or passive tension of the extensor mechanism, onset often assoicated with the rapid growth spurt or overtraining.
What is the MOI patellar fracture? Blunt trauma to the patella
Ballotable patella (tap) test postive results in? Downward movement of the patella followed by a rebound will give a apperance of a floating
Test for medial synovial plica postive results in ? reproducation of the symptoms is decribed by the patient, clinician may feel the plica crossing the medial femoral condyle espeacilly during 60-45 degrees flexion
Created by: Msathletic
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