Knee Pathological Gait

Question 1

Reasons for Knee Pathology

Answer 1

Muscle weakness- Quads
Pain and Swelling inhibit quads (arthogenic or neuro)
Flexion Contract- 15-30 deg usually; pressure lowest 15-60 flex, contract >15=increased quad force

Question 2

Inad Flexion
CAUSE

Loading Response

Answer 2

Quad weakness
Hip exten weakness
Muscle/joint pain
Excessive quad activity (motor control)
Decreased heel rocker (PF contrac limits)

Question 3

Inad Flexion
PENALTY

Loading Response

Answer 3

Decreased shock absorb, Increase passive loading

Question 4

Ind Flexion
CAUSE

Preswing-Initiaswing

Answer 4

Muscle/joint pain
Excessive quad activity
Hip flexor weakness

Question 5

Inad Flexion
PENALTY

Preswing-Initialswing

Answer 5

Decreased Foot Clearance!

Question 6

Excessive Extension
CAUSE

Loading respsone- Term stance

Answer 6

quad weakness
muscle joint/pain
excessive quad activity
excessive PF (extension comps for incr PF)

Question 7

Excessive Extension
PENALTY

LR-Term stance

Answer 7

Posterior knee joint stress

Question 8

Excessive Knee FLexion
CAUSE

Preswing-Initial Swing

Answer 8

Comp to assist in foot clearance from incrsd PF

Abnormal motor control (flexor pattern); shows as huge amount of foot clearance

Question 9

Excessive Knee Flexion
PENALTY

Preswing-Initial Swing

Answer 9

Incrsd energy expenditure form overuse

• -hip flexure (passive facil knee flex)
• -Bicep fem short head

Question 10

Inadequate Extension
CAUSE

Midstance-Terminal Stance

Answer 10

Flexion contrac Hip or Knee- dec stride length/incrs quad command
Excessive DF (calf weak fwd collapse tib=incrs knee flex)
Excessive hamstring activation (CP Patients)

Question 11

Inadequate Extension
PENALTY

Midstance-Term stance

Answer 11

Increased energy expend from quad overuse
Decrsd fwd progression (lower com over bos)
Decreased stride length

Question 12

Inadequate Extension
CAUSE

Midswing-Termswing

Answer 12

Weak quad
Flexion Contracture
Excessive ham activation
Purposefull strategy to decrs heel rocker (weak, bad balance, heel pain)

Question 13

Inadequate Extension
PENALTY

Mid-Termswing

Answer 13

Decreased limb advancement
Decreased Stance prep
Decreased stride length

Question 14

Dynamic Knee Valgus
CAUSES

Stance Phases

Answer 14

Excessive adducttion/IR from WEAK Abd/ERs

Question 15

Dynamic Knee Valgus
PENALTY

Stance Phases

Answer 15

Knee joint stress/strain- MCL, Pes Anserinus, ITB

Patelafem stress

Question 16

Dynamic Knee Varus
CAUSE

Stance Phases

Answer 16

Pelvic drop from Abd weakness

Genu Varum- structure issue

Question 17

Dynamic Knee Varus
PENALTY

Stance Phases

Answer 17

Knee joint stress/strain- LCL, ITB, Medial compartment

Question 18

Excessive Rotation
CAUSE

Stance Phases

Answer 18

Excessive pronation
Week Hip ERs
(femur rolls in)

Question 19

Excessive Rotation
PENALTIES

Stance phases

Answer 19

Knee stress/strain- MCL, Pes anserine, ITB

Patellafem pain