Term
What is the important job of the quadriceps group? |
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Definition
Extends the knee, important stabilizer of knee during the gait |
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Term
What is the job of the hamstring group? |
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Definition
Flexes the knee, arrests knee extension during the gait |
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Term
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Definition
tibia (distal knee) goes away from midline ("knocked knee") |
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Term
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Definition
tibia (distal knee) goes towards midline ("bowed leg") |
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Term
What are the flexors (hamstrings) innervated by? |
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Definition
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Term
What are the extensors (quadriceps) innervated by? |
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Definition
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Term
What is the ACL responsible for? |
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Definition
Responsible for limiting forward translation of the tibia and prevents hyperextension |
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Term
What is the MOI (Mechanism of Injury)? |
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Definition
Planted foot with twisting motion of body |
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Term
If a pt presents with pain in the knee, hemarthrosis, hx of a "POP" with trauma, and on physical exam there is a + Lachman's test, what condition should you suspect? |
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Definition
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Term
What is the appropriate work-up for an ACL tear? |
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Definition
Eval for other injuries (PCL, Meniscal, CL) Exam MRI Arthrocentesis (If hemarthrosis present) |
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Term
What are the causes of a chronic ACL tear? |
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Definition
Missed dx Failed non-operative treatment |
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Term
What are the complications of a chronic ACL tear? |
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Definition
Increased knee instability/laxity Meniscal tears |
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Term
What is the positioning of the ACL in the knee joint? |
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Definition
Connects the posterior femur to the anterior tibia |
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Term
What is the BEST physical exam test for an ACL tear? |
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Definition
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Term
Which ACL test is described as Pt supine, w/ knee flexed at 30 degrees, Femur stabilized w/ one hand and tibia is pulled anterior w/ the other hand? |
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Definition
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Term
Which ACL stability test is described as Pt supine, hip flexed, knee flexed at 45 degrees, Pt foot stabilized by examiner sitting on foot, Examiner “pulls” tibia forward/anterior? |
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Definition
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Term
What is the treatment for an ACL tear? |
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Definition
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Term
Which injury is more common, ACL tear or PCL tear? |
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Definition
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Term
Why is a PCL injury much less common than an ACL tear? |
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Definition
Much stronger than ACL Other structures aid in the PCLs function |
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Term
What is the MOI for a PCL? |
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Definition
MOI usually direct force if isolated injury |
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Term
If you have a PCL tear, what other conditions should you suspect? |
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Definition
ACL, CL (Knee Dislocation) |
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Term
If a pt presents with knee pain, history of direct knee injury, an on exam you observe a posteriorly subluxed resting tibia, what condition should you suspect? |
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Definition
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Term
What is the treatment for a isolated PCL? |
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Definition
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Term
When does an PCL tear get surgically corrected? |
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Definition
With COMPLETE Knee dislocation |
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Term
What knee stability test is described as Pt supine, hip flexed, knee flexed at 45 degrees, Pt foot stabilized by examiner sitting on foot, Examiner “pushes” tibia posterior? |
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Definition
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Term
What type of stress does the MCL resist against? |
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Definition
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Term
What type of stress does the LCL resist against? |
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Definition
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Term
If a pt presents with pain along the medial joint line of the knee and pain with valgus stress, what condition should you suspect? |
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Definition
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Term
What imaging should be used for knee ligament injuries? |
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Definition
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Term
Which physical exam tests should be used to evaluate a MCL injury? |
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Definition
Valgus Stress Test Apley's Distraction Test |
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Term
What nerve can be injured with a LCL tear? |
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Definition
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Term
What is the treatment for a MCL tear? |
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Definition
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Term
What is the MC ligament that is injured in the body? |
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Definition
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Term
A LCL tear is not usually an isolated injury, what injury is usually associated with it? |
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Definition
Usually associated with cruciate and posteriorlateral corner injury |
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Term
Which physical diagnosis test is used to evaluate an LCL tear? |
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Definition
Varus Stress Test Apley's Apprehension test |
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Term
Which physical diagnosis test is described as Pt supine on the table, leg abducted, Examiner applies force in the lateral direction to the ankle from the medial aspect and force in the medial direction of the knee from the lateral aspect? |
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Definition
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Term
Which physical diagnosis test is described as Pt supine on the table, leg abducted, Examiner applies force in the medial direction to the ankle from the lateral aspect and force in the lateral direction of the knee from the medial aspect? |
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Definition
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Term
What does a MCL or LCL injury usually result in? |
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Definition
Usually results in significant stiffness or residual instability |
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Term
Which part of the Meniscus is the MC to be injured? |
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Definition
Medial injuries more frequent than lateral injuries |
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Term
What is the MOI for Meniscal Tears? |
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Definition
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Term
If a pt presents with knee pain, popping, locking or giving way, and on physical exam there is joint line tenderness, a positive McMurray's test and and a positive Apley's compression test, what condition should you suspect? |
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Definition
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Term
What is the BEST diagnostic test for Meniscal Injuries? |
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Definition
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Term
Which physical diagnosis is described as Pt lies supine w/ knee completely flexed (foot to buttocks), Examiner medially (internally) rotates foot and tibia, and extend leg/knee? |
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Definition
McMurray Test – lateral meniscus |
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Term
Which physical diagnostic test is described as Pt lies supine w/ knee completely flexed (foot to buttocks), Examiner laterally (externally) rotates foot and tibia, and extend leg/knee? |
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Definition
McMurray Test – medial meniscus |
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Term
Which physical diagnostic test is described as Pt in prone position, knee flexed to 90 degrees, Examiner applies pressure to (pushes on) the heel and then medial and laterally rotates the leg/foot? |
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Definition
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Term
If the patient has a + Apley's on the medial side, where is the Meniscal tear? |
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Definition
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Term
If the patient has a + Apley's on the lateral side, where is the Meniscal tear? |
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Definition
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Term
What condition is caused by extrusion of synovial fluid through the meniscal tear, accumulating outside the joint capsule? |
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Definition
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Term
What imaging is appropriate for meniscal cysts? |
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Definition
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Term
If a pt presents with a mass on the lateral side of their knee that changes size with flexion and extension, and their is a PHx of trauma, what condition should you suspect? |
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Definition
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Term
What is the treatment of a Meniscal cyst? |
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Definition
Excision/Drainage and repair or removal of meniscus |
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Term
What is the treatment for Bursitis? |
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Definition
Ice, Compression, Crutches, NSAIDs Aspiration (helps in pain) or Injection |
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Term
What are the signs and symptoms of bursitis? |
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Definition
pain and swelling over bursa |
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Term
Which bursas are MC affected in the knee with bursitis? |
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Definition
Suprapatellar bursa Subcutaneous prepatellar bursa |
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Term
Does bursitis have pain with ROM? Why is this important? |
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Definition
No; Differentiates it from septic arthritis b/c with septic arthritis there will be pain with ROM |
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Term
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Definition
A bursitis of the semimembranosus bursa that develops calcifications |
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Term
If there is prepatellar busitis, what should you suspect? |
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Definition
Infection (until proven otherwise) |
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Term
What should you be highly concerned about with femur shaft fractures? What should you do to prevent this concern? |
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Definition
hemovascular compromise; Stabilization Device (splint, screw etc) |
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Term
What is the MOI for femur shaft fracture? |
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Definition
high energy trauma - MVA, Gunshot wounds, falls from heights |
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Term
What is the imaging tool that is used to diagnose a femur shaft fracture? |
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Definition
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Term
What is the treatment for femur shaft fracture? |
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Definition
hemovascular stabilization (Type and cross match) Stabilization device Ortho |
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Term
What is the biggest concern with tibial plateau fractures? How can you prophylactically address these concerns? |
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Definition
Compartment syndrome; faciaotomy (spelling?) |
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Term
What is the treatment for tibial plateau fracture? |
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Definition
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Term
What is used to classify a tibial plateau fracture? |
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Definition
Schatzker (1 - 6 the higher the # the more difficult the surgical repair) |
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Term
What imaging is needed for a tibial plateau fracture? |
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Definition
Plain film and MUST get CT w/scout views |
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Term
What is the MOI for a tibial plateau fracture? |
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Definition
falls from heights, MVA accidents and MVA/pedestrian accident |
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Term
What does a small avulsion fracture of the lateral ligament indicate? |
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Definition
Usually signals a severe joint injury (LCL and ACL) |
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Term
What is the MOI of a patellar fracture? |
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Definition
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Term
If a pt presents with complaints of trauma, acute knee pain, swelling and an inability to extend the knee, what condition should you suspect? |
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Definition
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Term
What imaging should be done to assess a patellar fracture? |
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Definition
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Term
What is the treatment for a patellar fracture? |
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Definition
Surgery!! (Seen John for the Steel Cable) |
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Term
What are the risk factors for a patellar dislocation? |
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Definition
excessive Q angle, ligament laxity, Pes Planus |
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Term
Which physical diagnosis test is described as Pt supine, legs flat on table, quadriceps relaxed, Try to dislocate the patella laterally? |
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Definition
Patellar Apprehension Test |
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Term
What is the treatment for a patellar dislocation? |
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Definition
Reduction (Grab big toe) Ortho consult (Disrupts the patellar femoral retinaculum) NSAIDs/Pain Meds |
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Term
What is the treatment for Tibiofemoral dislocation? |
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Definition
Ortho and Vascular surgery Emergency (literally 1 hr before limb death occurs) |
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Term
What are the imaging studies needed for a tibiofemoral dislocation? |
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Definition
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Term
If a pt presents with a severe knee deformity s/p MVA and pulselessness in the ankle, what condition should you suspect? |
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Definition
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Term
If the pt presents s/p injury to their knee w/ acute pain and swelling and inability to extend knee, and on physical exam the patella is located proximally over femur head ("riding up"), what condition should you suspect? |
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Definition
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Term
What is the treatment for patellar tendon rupture? |
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Definition
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Term
If a pt presents with knee pain and stiffness and decreased ROM, what condition should you suspect? |
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Definition
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Term
What is the treatment for osteoarthritis? |
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Definition
PT consult – ROM Decrease weight NSAIDS Ortho – knee replacement |
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Term
What is the cause of Patellofemoral Syndrome
(Chondromalacia)? |
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Definition
overuse or excessive Q angle |
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Term
If a pt presents with Anterior knee pain worse w/ stair climbing or prolong sitting, and on physical exam you note + patellar tenderness & swelling and + apprehensive test, what condition should you suspect? |
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Definition
Patellofemoral Syndrome
(Chondromalacia) |
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Term
What is the treatment for Patellofemoral Syndrome
(Chondromalacia)? |
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Definition
PT consult R.I.C.E & NSAIDS Ortho consult if needed – diagnose chondromalacia |
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Term
If there is a knee effusion, what MUST you do diagnostically? |
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Definition
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Term
What are the WBC levels for an inflammatory effusion? |
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Definition
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Term
What are the WBC levels for an septic effusion? |
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Definition
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Term
What is the neutrophil % in an inflammatory effusion? |
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Definition
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Term
What is the neutrophil % in a septic effusion? |
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Definition
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Term
What is the general protein/glucose ratio in septic effusion? |
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Definition
Septic high protein/low glucose |
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Term
What physical diagnosis test is described as Pt supine, examiner pushes fluid from the suprapatellar pouch toward the foot (“milking the knee”)? |
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Definition
Minor effusion test/Patellar Ballotment |
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