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Ch 7 Patellofemoral
Ch 7 Patellofermoral
| 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 |
Created by:
Msathletic
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