Knee Flashcards
Grade I LCL/MCL Ligament lesion
- pain with valgus/varus stress; palpation over ligament painful, may have swelling, joint is stable, AROM may be painful
- little no instability
Grade II LCL/MCL Ligament lesion
- local swelling and some effusion
- pain with valgus/varus stress
- ROM limited
- laxity at 30 degrees
- may have palpable defect
- minimal to moderate instability
Grade III LCL/MCL Ligament lesion
- full thickness tear
- grater amounts of Grade II findings
- extreme instability
LCL/MCL Ligament lesion - maximum protection phase (Weeks 1-3)
- PRICE
- ambulation training
- PROM/AAROM
- patellar mobs (I and II)
- muscle setting
- SLR
- aerobic conditioning
LCL/MCL Ligament lesion- moderate protection phase (weeks 3-6)
- continue multiple angle isometrics
- initiate PRE
- CKC strengthening
- LE flexibility
- endurance
- balance
- walk/jog program at end of this phase
- skill specific drills at end of phase
LCL/MCL Ligament lesion - minimul protection phase (5-8 weeks)
- LE flexibility
- advance PRE
- advance CKC strengthening, endurance
- isokinetics
- progress running program, full speed job sprits, cutting
LCL/MCL Ligament lesion return to activity (weeks 6-10)
- continue flexility and strengthening
- agility drills
- running drills
- perturbation drills
- sport specific drills
what is the unhappy triad
- MCL
- medial meniscus
- ACL
ACL lesion etiology
- noncontact: forceful hyperextension or ER force when foot is planted
- contact: valgus force to knee
ACL lesion symptoms
- acute, tense effusion
- lachman’s
- anterior drawer, levers
- posterior knee pain (acute)
- posterior and lateral knee pain (chronic)
PCL lesion etiology
- most commonly injured by a forceful blow to anterior tibia while knee is flexed
ligament repair considerations
- may take 9-12 months for full healing of repair
- early ROM typically allowed
- immobilization in safe position
muscle and tendon repair considerations
- muscle: ROM within protected ranges AFTER immobilization is removed
- tendon: ROM in max phase
- when strengthening begins: being with low load, high reps, concentric contractions
- vigorous stretching and full contraction against resistance often contraindicated for first 6-8 weeks
gold standard ACL reconstruction
- patella tendon autograft
ACL reconstruction
- immobilization for early protection
- ROM: early extension is important; 90-110 by 4-6 weeks
- varies WBAT to some form of PWB
- NO OKC TKE 45-0 degrees; CKC squad strengthening between 60-90 degrees
What causes meniscal/articular cartilage injuries
- a combination of forces to include tibiofemoral joint flexion, compression, and rotation
- fixed foot with rotation
symptoms of meniscal injury
- feel something give in the joint, sickening, deep pain
- pain with full ext or flex
- history of locking
- difficulty WBing when acute
- joint line tenderness
- mcmurrays
- apley’s
meniscal healing potential
- tears in peripheral zone have rich vascular supply and response well
- inside… not so much –> probably gave to take it out
diagnostic test for meniscal injury
- MRI
meniscal repair immobilization
- locked in knee ext
- typically 24 hr wear
- progressing unlock from 4-8 weeks
meniscus repair ROM restriction
- restricted to 90 degrees flex for 2 weeks
- typical 10 degree increase each week
meniscal repair WB
NWB/TTWB for central/root repair for 4-6 weeks
- peripheral zone repair sometimes PWB; FWB by 4 weeks
meniscal repair squatting progression
0-45 flex for first 4 weeks
0-60/70 for up to 8 weeks
deep squat, twist, and pivot at 4-6 mo
**hamstring curls avoided for 8 weeks
Meniscectomy
- no immobilization
- WBAT
- ROM progressed as tolerated
Knee ligament sprain CPG - diagnosis
Made with reasonable level of certainty when pt present with following:
- symptom onset linked to trauma
- deceleration, cutting or vagus motion with injury
- “pop” heard or felt
- hemarthrosis within 0-12 hrs
- effusion
- subjective knee instability
- excessive tibfem laxity
- pain/symptoms with ligament integrity tests
- LE strength and coordination deficits
- impaired SL balance
- abnormal compensatory strategies during deceleration or cutting movements
(I)
Knee ligament sprain CPG - interventions - Therapeutic exercise and NMES
- concentric and eccentric exercises in non-WBing to increased quad strength and functional performance following ACL reconstruction
- starting within 4-6 weeks and continuing up to 10 months
- NMES following ACL reconstruction (up to 6-8 weeks) to increased quad strength and short term function
Knee ligament sprain CPG - interventions - NMR
- NMR along with strengthening in pts with knee stability and movement coordination impairments
Knee ligament sprain CPG - immediate vs delated mobilization
- use immediate mobilization following ACL reconstruction to decrease pain, increase ROM, and avoid adverse soft tissue responses
(II)
Knee ligament sprain CPG - cryotherapy
- use immediately after reconstruction
(II)
Knee ligament sprain CPG - supervised rehabilitation
- education and exercises following ACL reconstruction for supervised in clinic period and home program (II)