USMLE Forum Archives - USMLE Step 3 - Sport Injuries
Sport Injuries
harry206 - 05-18-09 10:19
Medial collateral ligament injury
Tenderness and pain along the medial joint line
This common condition is most frequently caused by an injury involving valgus (abductor) stress to the partially flexed knee with the foot fixed.
Such an injury can occur while skiing or during contact sports, when another person falls across the knee from the lateral to medial direction.
Lateral collateral ligament injury
Associated with tenderness and pain along the lateral joint line
This uncommon condition is most frequently caused by an injury involving dramatic varus (adductor) stress.
Anterior cruciate ligament injury
Pain and laxity upon performance of the anterior drawer or Lachman maneuver.
Most frequently occurs after noncontact deceleration, a cutting movement, or hyperextension.
It may be accompanied by a "popping" sound.
Posterior cruciate ligament injury
Little pain or alteration in range of motion, but the posterior drawer test is positive.
This uncommon condition occurs from a posteriorly directed force on a flexed knee (e.g., the dashboard being struck by the anterior of the flexed knee in a motor vehicle accident) or from hyperextension.
harry206 - 05-18-09 10:19
Medial collateral ligament injury
Tenderness and pain along the medial joint line
This common condition is most frequently caused by an injury involving valgus (abductor) stress to the partially flexed knee with the foot fixed.
Such an injury can occur while skiing or during contact sports, when another person falls across the knee from the lateral to medial direction.
Lateral collateral ligament injury
Associated with tenderness and pain along the lateral joint line
This uncommon condition is most frequently caused by an injury involving dramatic varus (adductor) stress.
Anterior cruciate ligament injury
Pain and laxity upon performance of the anterior drawer or Lachman maneuver.
Most frequently occurs after noncontact deceleration, a cutting movement, or hyperextension.
It may be accompanied by a "popping" sound.
Posterior cruciate ligament injury
Little pain or alteration in range of motion, but the posterior drawer test is positive.
This uncommon condition occurs from a posteriorly directed force on a flexed knee (e.g., the dashboard being struck by the anterior of the flexed knee in a motor vehicle accident) or from hyperextension.
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#1
Re: Sport Injuries
harry206 - 05-18-09 10:51 McMurray test: Meniscal tears:
VALGUS & VARUS test: for medial & lateral collateral ligament injury resp.
Drawer test & lachmann tets: cruciate ligament injury test
#2
Re: Sport Injuries bingousmle - 06-18-10 08:36 a very good illustration, so what do you think is answer to this,
A 22-year-old soccer player presents to the ED complaining of right knee pain and swelling. He states that earlier in the day he was in a soccer match and was running for the ball, but stopped abruptly and tried to run in a new direction. Immediately thereafter, he felt intense pain in his knee with instant swelling. Which of the following is the most commonly injured major ligament of the knee?
a. Anterior cruciate ligament (ACL)
b. Posterior cruciate ligament (PCL)
c. Medial collateral ligament (MCL)
d. Lateral collateral ligament (LCL)
e. Patella ligament
#3
Re: Sport Injuries babbu5508 - 06-18-10 14:47 The most commonly injured knee structures are the medial collateral and anterior cruciate ligaments. The most common mechanism for ligamentous knee injuries is an inward, medial force usually accompanied by some external rotation and flexion (as when being tackled in football).
ans c.
#4
Re: Sport Injuries bingousmle - 06-18-10 14:54 the answer is A.The ACL is the most frequently injured ligament in the knee. It has a rich blood supply which accounts for the high incidence of hemarthrosis when the ligament is injured. A history that includes a pop or snap at the time of injury (eg, during a sudden turn in direction while playing sports) suggests a rupture of the ACL until proven otherwise, particularly when associated with the rapid development of a knee effusion.
#5
Re: Sport Injuries babbu5508 - 06-18-10 15:17 ok...i was wondering between anterior cruciate ligament and medial collateral ligament.....so the answer is anterior cruciate ligament
#6
Re: Sport Injuries bingousmle - 06-18-10 15:20 exactly... and it is not The PCL as it is significantly stronger than the ACL and collateral ligaments. Therefore, injury to it is rare and is usually associated with severeknee injuries. The medial and LCL are often injured with excessive valgus (knee forced medially relative to leg) and varus (knee forced laterally elative to leg) forces, respectively. The patella ligament (e) runs from the patella to the tibial tuberosity and functions to help extend the leg at the knee. The ligament is commonly injured when an individual falls on a partially flexed knee.
#7
Re: Sport Injuries babbu5508 - 06-18-10 15:41 The MCL is injured more often than the LCL. Due to the more complex anatomy of the outside of the knee, if LCL is injured, it is usual to have injuries to other structures in the joint, as well.
#8
Re: Sport Injuries bingousmle - 06-18-10 15:44 
posted by babbu5508 on 06-18-10 15:41
The MCL is injured more often than the LCL. Due to the more complex anatomy of the outside of the knee, if LCL is injured, it is usual to have injuries to other structures in the joint, as well.
The MCL is injured more often than the LCL. Due to the more complex anatomy of the outside of the knee, if LCL is injured, it is usual to have injuries to other structures in the joint, as well.
okay
#10
Re: Sport Injuries bingousmle - 06-18-10 15:55 a point i would like to add here is Achilles tendon rupture. The individual gives a history of
a sudden excruciating pain and having heard or felt a pop or snap. This entity is most common in sedentary, middle-aged men or in athletes.
#11
Re: Sport Injuries babbu5508 - 06-18-10 16:29 question about a partial or complete rupture of your Achilles tendon, may be known by magnetic resonance imaging (MRI) scan.Surgery is often the best treatment option to repair an Achilles tendon rupture.
#12
Re: Sport Injuries bingousmle - 06-18-10 16:39 The diagnosis od achillesrupture is clinical and can be made with the Thompson test. The patient is placed in the prone position. With normal function, squeezing the calf produces plantar flexion of the foot. With a complete tear of the Achilles tendon, plantar
flexion will not occur. If doubt remains, magnetic resonance imaging (MRI)
or ultrasound can be used to confirm the diagnosis. and is treated surgically
#13
Re: Sport Injuries babbu5508 - 06-19-10 01:02 Certain illnesses (such as arthritis and diabetes) and medications (such as corticosteroids and some antibiotics) can increase the risk of rupture.
#14
Re: Sport Injuries bingousmle - 06-19-10 05:07 we know that SUPRACONDYLAR FRACTURE of the distal femur can harm the popliteal artery.
-Gastrocnemius Muscle can threaten the popliteal artery at its origin, where it flexes the distal femur. Tearing of the artery would cut blood supply to entire leg essentially. so how should A Cast for this fracture should be made?
#15
Re: Sport Injuries babbu5508 - 06-19-10 12:34 Common causes of damage to the common peroneal nerve include the following:
Trauma or injury to the knee
Fracture of the fibula
#16
Re: Sport Injuries bingousmle - 06-30-10 16:35 so the answer to my above question that what should be the position if a Cast for this fracture should be made is that it should be done in a flexed position
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