Knee Complex Flashcards

1
Q

What is unhappy triad

A

An injury where there was a force applied on the lateral side which caused an excessive Valgus force

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2
Q

Unhappy Triad Ligaments affected

A

Medial Collateral ligament
media meniscus
Anterior Cruciate Ligament

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3
Q

What does Medial Collateral Ligament limit

A

Valgus Force
25 degrees of flexion: Almost 80% protection against valves stress

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4
Q

Proximal attachment of MCL

A

Medial Epicondyle of Femur

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5
Q

Distal Attachment of MCL

A

Ant: Middle superior aspect of medial tibia posterior to pes anserine

Post: distally to Medial Posterior joint capsule, medial meniscus and tendon of semimembranosus muscle

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6
Q

MCL ANTERIOR PORTION IS TAUT DURING

A

FLEXION

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7
Q

MCL POSTERIOR PORTION IS TAUT DURING

A

EXTENSION

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8
Q

LATERAL COLLATRAL LIGAMENT LIMITS

A

VARUS FORCE
KNEE EXTENSION

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9
Q

PROXIMAL ATTACHMENT OF LCL

A

LATERAL EPICONDYLE OF FEMUR

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10
Q

DISTAL ATTACHMENT OF LCL

A

HEAD OF FIBULA AND MERGES WITH THE TENDON OF BICEPS FEMORIS

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11
Q

OBLIQUE POPLITEAL LIGAMENT PROXIMAL ATTACHMENT

A

POSTEROMEDIAL TIBIA NEAR SEMIMEMBRANOSUS INSERTION

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12
Q

DISTAL ATTACHMENT OF OBLIQUE POPLITEAL LIGAMENT

A

POSTEROLATERAL FEMUR NEAR LATERAL GASTROCNEMIUS HEAD

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13
Q

OBLIQUE POPLITEAL LIGAMENT LIMITS

A

HYPEREXTENSION ON POSTERIOR KNEE

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14
Q

ARCUATE POPLITEAL LIGAMENT LIMITS

A

HYPEREXTENSION AND ROTATIONAL FORCES

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15
Q

ACL LIMITS

A

ANTERIOR TRANSLATION OF TIBIA ON FEMUR

POSTERIOR TRANSLATION OF FEMUR ON TIBIA

HYPEREXTENSION

RESIST VALGUS VARUS AND AXIAL ROTATION

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16
Q

ACL PROXIMAL ATTACHMENT

A

ANTERIOR INTERCONDYLAR TIBIAL FOSSA BEHIND ANTERIOR ATTACHMENT OF MEDIAL MENISCUS

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17
Q

DISTAL ATTACHMENT OF ACL

A

POSTEROMEDIAL ASPECT OF LATERAL FEMORAL CONDYLE

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18
Q

C-SHAPED, ATTACHES TO MCL

A

MEDIAL MENISCUS

19
Q

CIRCULAR, NOT ATTACHED TO LCL BC OF THE TENDON OF POPLITEUS

A

LATERAL MENISCUS

20
Q

TRUE OF FALSE MEDIAL MENISCUS IS MORE SECURELY ANCHORED THAN LATERAL MENISCUS

A

TRUE

21
Q

LIGAMENT OF HUMPREY MOTION IT LIMITS

A

ANCHORS LATERAL MENISCUS

22
Q

LIGAMENT OF WRISBURG

A

STABILIZES LATERAL MENISCUS

23
Q

EXTERNAL 1/3 ARE VASCULARIZED

A

RED ZONE

24
Q

INNER 2/3 ARE ESSENTIALLY AVASCULAR

A

WHITE ZONE

25
Q

NARROW JUNCTION B/W RED AND WHITE ZONE

A

PINK ZONE

26
Q

PES ANSERINUS TENDONS INCLUDE

A

SARTORIUS
SEMITENDINOSUS
GRACILIS

27
Q

SERVES AS CONTINUATION OF QUADRICEPS TENDON AND PROTECTS KNEE

A

PATELLAR LIGAMENT/TENDON

28
Q

PATELLAR LIGAMENT/TENDON PROXIMAL AND DISTAL ATTACHMENT

A

APEX OF PATELLA, TIBIAL TUBEROSITY

29
Q

IF THERE IS TIGHTNESS IN THE ILIOTIBIAL BAND THE PATELLA WILL TRACK MORE (MEDIAL AND LATERAL)

A

LATERAL

30
Q

KNEE FLEXORS

A

PRIMARY: HAMSTRINGS
GRACILIS
GASTROCNEMIUS
PLANTARIS

SECONDARY: SARTORIUS

31
Q

KNEE EXTENSORS

A

QUADRICEPS MUSCLES
2ND: TENSOR FASCIA LATAE

32
Q

KNEE ER

A

BICEPS FEMORIS

33
Q

KNEE IR

A

SEMITENDINOSUS
SEMIMEMBRANOSUS
GRACILIS
POPLITEUS

2ND: SARTORIUS

34
Q

ARTHRO FOR TIBIOFEMORAL JOINT DURING FLEXION OKC

A

ROLL AND SLIDE POSTERIOR

35
Q

ARTHRO FOR TIBIOFEMORAL JOINT DURING EXTENSION OKC

A

ROLLS AND SLIDE ANTERIOR

36
Q

ARTHRO FOR TIBIOFEMORAL JOINT DURING FLEXION CKC

A

ROLLS POSTERIOR
SLIDES ANTERIOR

37
Q

ARTHRO FOR TIBIOFEMORAL JOINT DURING EXTENSION CKC

A

ROLLS ANTERIOR
SLIDES POSTERIOR

38
Q

TIBIOFEMORAL IR AND ER

A

SPINS

39
Q

DURING FLEXION PATELLA SLIDES

A

INFERIOR

40
Q

DURING EXTENSION PATELLA SLIDES

A

SUPERIOR

41
Q

OKC OF TIBIA ON FEMUR SCREWHOME MECHANISM

A

ER 10-20 DEGREES ON FIXED FIBULA

42
Q
A
43
Q
A