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89 Cards in this Set

  • Front
  • Back
Which femoral condyle is C shaped?
Medial
Which femoral condyle is more rounded?
Lateral
What is the joint classification of the knee?
Synovial Hinge Joint
What is A?
Femoral Condyles
What is B?
Tibial Pateau
The distal femur is _________ medial to lateral and _________ superior to inferior.
Concave
Convex
Which condyle is larger and longer?
Medial
What are the two layers of the knee joint capsule?
Fibrous
Synovial
What are characteristics of hyaline cartilage at the knee joint?
Very thick on femur and tibia
Improved congruency due to compliance
Improved ability to handle large forces
Which meniscus is attached to the MCL?
Medial
Which meniscus is less movable and therefore more frequently injured?
Medial
Which meniscus is attached to the popliteus?
Lateral
What are some examples of foam roll and Static Stretch Techniques for feet turning out?
Gastrocnemius / Soleus
Bicept Femoris (short head)
What are the two main pairs of ligaments?
ACL/PCL
MCL/LCL
What motion does the ACL prevent?
Anterior translation of the tibia (tightest in extension)
What motion does the PCL prevent?
Posterior translation of the tibia (tight during flexion)
What is the function of the MCL?
Provides frontal plane stability
Resists valgus forces
What is the function of the LCL?
Resists varus forces and lateral rotation?
What are functions and characteristics of the fat fad?
Protect anterior knee joint structures
Moves anterior with extension, moves posterior with flexion
Highly innervated
Can be very painful
What is the tendency for rotation called?
Version
What is the normal version of the foot in the transverse plane?
0 Degrees
What is the normal tilt of the patella at rest?
Slight lateral titl
What is the open pack position of the knee?
25 Degrees Flexion
What is the closed pack position of the knee?
Full Extension
Tibial External Rotation
What is the capsular pattern of the knee?
Flexion > Extension
What is normal end feel at the knee in flexion? Extension?
Flexion- Soft
Extension- Firm
Name the normal ROM at the knee for the following:
Flexion/Extension
Lateral Rotation
Abduction
Flexion/Extension- 140 Degrees
Lateral Rotation- 20 Degrees
Abduction- 5 Degrees
How many degrees of freedom does the knee have?
6
Which bone of the knee is concave? Convex?
Concave- Tibia
Convex- Femur
If motion occurs in the sagittal plane, what direction does the roll occur in?
Anterior/Posterior
If motion occurs in the frontal plane, what direction does the roll occur in?
Superior/Inferior
What is the purpose of the patella?
Increase the moment arm or mechanical advantage of the quadriceps
How much does the patella translate on the femur?
5-6 cm
What are the influences of the Q angle on the knee?
The greater Q angle puts a larger medial stress on the knee and puts more stress on the ACL. If we have our knee in CKC, we put less shear force on the knee
Which structure pulls on the suprapatellar pouch?
Articularis Genu
What is the screw home mechanism?
Towards the end of knee flexion, the tibia medially rotates by way of the popliteus muscles.
Which muscles initiates flexion of the knee?
Popliteus
Which muscles cause internal rotation of the knee?
Semimembranosis
Semitendonosis
Sartorius
Gracilis
Which muscles cause external rotation of the knee?
TFL
Biceps Femoris
What is the mid range where the body is able to generate the most amount of force at the knee when performing knee extension?
50-80 Degrees
During free weights, the peak quad force is at which position?
Full extension
When dealing with pullies, constant force-magnitudes is dependent on what?
External Force
During CKC, force increases with what?
Knee Flexion
During isokinetic motion, peak force is attained at what range?
Mid range
Forced generated at the knee can reach how how?
9 times body weight
Walking causes how much force at the tibiofemoral joint? Jogging?
3x BW
12x BW
During knee flexion, which direction does the patella move?
Distally
What mechanisms help prevent lateral trackining?
Large lateral condyle superiorly
Medial extensor retinaculum
VMO
Compressive and shear forces range from body weight with level walking to over 1100 lb while doing what?
Running
Jumping
Increased Flexion = ?
Increase Compression
The dome of the talus from anterior-posterior is _____, while from medial-lateral is ______.
A-P: convex
M-L: concave
The posterior facet of the calcaneous articulates with which structure?
Talus
Why is it important that the calcaneous is trabecular bone?
It allows for shock absorption
What are the keystones for the transverse arch of the foot?
Cuneiform bones
Which structures in the foot work as functional motion segment, often referred to as Rays?
Metatarsal and phalanges
What does the hindfoot include?
Calcaneus
Talus
What is included in the midfoot?
Cuneiform
Navicular
Cuboid
What is included in the forefoot?
Metatarsals
Phalanges
What are the 3 main functions of the ankle?
Shock absorption
Adapt WB activity to uneven ground
Stable BOS for mobility
What are motions at the ankle (tarsal)?
Plantar Flexion
Dorsiflexion
Inversion
Eversion
Adduction
Abduction
Which joint is considered the proper ankle joint?
Talocrural
Varus position at the foot has the foot pointed _______. Valgus is pointed ______.
Varus: inward
Valgus: outward
Which joint is referred to as the mortise joint?
Talocrural
What is normal plantar flexion and dorsiflexion of the foot?
Plantar Flexion: 35-50 degrees
Dorsiflexion: 20 degrees
The axis of motion at the ankle during plantar flexion and dorsiflexion is what?
From medial to lateral malleolus
Motion at the talocrural joint is considered _______.
Triplanar
What is the resting position of the ankle?
10 degree plantar flexion, midway between inversion and eversion
What is the closed pack position of the ankle?
Maximum dorsiflexion
When considering capsular pattern at the ankle, plantar flexion is ______ limited than dorsiflexion.
More
What motion does the ATFL limit?
Anterior glide of the talus
Is the lateral ligament stronger or weaker than the medial ligament?
Weaker
What are characteristics of the deltoid ligament?
Medial
Strong
Medial malleolus to talus, calcaneus, and navicular
Stabilizes during eversion
Which ligament stabilizes the ankle during eversion?
Deltoid
Which bones comprise the subtalar joint?
Talus
Calcaneus
What type of joint is the subtalar? How many joint capsules?
Synovial Joint
Two joint capsules (ant/post)
What is normal inversion and eversion of the foot?
Inversion: 20 degrees
Eversion: 10 degrees
Which motion at the ankle is directed medial-superior? Lateral-inferior?
Medial-superior: Inversion
Lateral-inferior: Eversion
Which joint is referred to as the spring ligament of the talar head?
Talonavicular joint
DF/PF occur at which joint?
INV/EV?
PRON/SUP?
DF/PF: Talocrural
INV/EV: Subtalar and Transverse Tarsal
PRON/SUP: All together
Which motions occur at the MTP joints?
Flexion
Extension
Abduction
Adduction
MTP 1 joint has how much ROM?
Flexion: 30-45 degrees
Extension: 50-70 degrees
How many degrees of freedom does the MTP joint have?
2
What is the ROM of the IP joint of the hallux?
0-30 degrees
What are functions of the plantar fascia?
Maintain shape of foot

Support/stabilize skin and plantar surface of foot joints

Dynamic in gait-stabilization of foot for pushing off the ground as it bears the weight of the body and is pulled taut
What is the joint arthrokinematics of the subtalar joint?
Posterior part of the joint-view as concave talus moving on convex calcaneous

Anterior part-View as slightly convex talus moving on concave calcaneous
What are the arthrokinematics of the talocrural joint?
Talus: Ant-Post: Convex
Talus: Med-Lat: Concave and Convex
What condition has a high arch, is fairly rigid, and often is involved joint/bony injuries?
Pes Cavus
What condition is associated with flat foot, tends to be hypermobile, and is often involved with more soft tissue injuries?
Pes Planus
Which muscles has the largest cross-sectional area in the lower leg?
Soleus