| Question |
Answer |
| 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 |
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