Once you have watched this video, why not attempt the multiple choice quiz to consolidate your knowledge?<\/p>\n","protected":false},"excerpt":{"rendered":"
Once you have watched this video, why not attempt the multiple choice quiz to consolidate your knowledge?<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[],"class_list":["post-628","post","type-post","status-publish","format-standard","hentry","category-innovative-anatomy","entry"],"youtubeVideo":"435671730\/fc4ff54597","question1":"The extensor muscles of the knee joint are supplied by the sciatic nerve.","answers1":"True | False","correctAnswer1":"1","correctAnswerText1":"The major extensors of the knee joint are the quadriceps femoris muscles and are supplied by the femoral nerve and the iliotibial tract supplied by the superior gluteal nerve. The superior gluteal nerve doesn\u2019t extend the knee.","question2":"Damage to which three structures forms the unhappy\/terrible triad?","answers2":"Medial meniscus, anterior cruciate ligament, medial collateral ligament | Lateral meniscus, posterior cruciate ligament, lateral collateral ligament | Lateral meniscus, oblique popliteal ligament, lateral collateral ligament | Oblique popliteal ligament, patellar ligament, anterior cruciate ligament","correctAnswer2":"0","correctAnswerText2":"The unhappy triad also known as blown knee refers to triad of injury to the anterior cruciate ligament, medial collateral ligament and the meniscus.","question3":"The muscles\/ tendons that strengthen and stabilise the knee joint on the lateral side consist of all of the following except...","answers3":"Biceps femoris | Soleus | Gastrocnemius | Iliotibial tract","correctAnswerText3":"The musculature of the lateral aspect of the knee consists of the iliotibial band and the popliteus muscles. The primary function of these muscles, along with the semimembranosus and semitendinosus, is to flex the knee, but these muscles also act as hip extensors. The biceps femoris acts as a lateral rotator of the knee, as does the semimembranosus muscle, whilst the tensor fasciae latae and iliotibial band act as lateral stabilisers of the knee, and the popliteus muscle rotates the knee both laterally and medially.","correctAnswer3":"1","question4":"Tendons supporting the medial side of the knee joint include the three which form the pes anserinus. Which one of the following four tendons is not part of the pes anserinus?","answers4":"Semitendinosus | Sartorius | Gracilis | Semimembranosus","correctAnswer4":"3","correctAnswerText4":"The pes anserinus, or goose\u2019s foot, can be found at the proximal, medial aspect of the tibia. The semitendinosus (hamstrings), sartorius (seatbelt) and gascilis (medial compartment) attach here, stabilising the knee posterior-medially.","question5":"Regarding the bones of the knee joint, which of the following statements is false?","answers5":"The patella is the largest sesamoid bone in the body and is encased in the quadraceps tendon | The apex of the patella is the inferior part of the patella | The proximal tibiofibular joint is a fibrous joint | The tibiofemoral joint is the weight baring joint of the knee ","correctAnswer5":"2","correctAnswerText5":"The superior tibiofibular joint (the most proximal) is a synovial joint. The fibula does not articulate directly with the femur. The knee joint comprises of the tibiofemoral and patellofemoral joints.","question6":"Injury to the lateral collateral ligament will often result in the knee joint opening up on the medial side when stressed.","answers6":"True | False","correctAnswer6":"1","correctAnswerText6":"The lateral collateral ligament protects against varus (from medial to lateral) force to prevent the knee joint opening up of the lateral aspect. Injury to the lateral collateral ligament will often result in the knee joint opening up laterally when stressed.","question7":"The popliteus muscle locks the knee joint in extension.","answers7":"True | False","correctAnswer7":"1","correctAnswerText7":"The popliteus muscle acts to unlock the extended knee by rotating the femur on the tibia at the beginning of knee flexion.","question8":"The medial meniscus is more commonly injured than the lateral meniscus.","answers8":"True | False","correctAnswer8":"0","correctAnswerText8":"The medial meniscus is more likely to get injured because it is firmly attached to the medial collateral ligament and joint capsule. The lateral meniscus, on the outside of the knee, is more circular in shape.","question9":"CT scanning would be the most effective imaging modality for investigation of ligamentous injury to the knee.","answers9":"True | False","correctAnswer9":"1","correctAnswerText9":"MRI scan is the most effective imaging technique for ligamentous injury.","question10":"The commonest cause of anterior cruciate ligament injury is a \u201cdashboard\u201d injury in a road traffic accident.","answers10":"True | False","correctAnswer10":"1","correctAnswerText10":"Dashboard injuries are the commonest cause of posterior cruciate injury. Anterior cruciate injuries are often sporting injuries. They result from hyperextension or rotation of the knee whilst the foot remains planted on the ground. 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