MSK/Rheumatology - Lower Extremity - Exam 3 Flashcards
What is a femoroacetabular impingement? (FAI)
Bone overgrowth or abnormality in bone development that changes the function of the hip joint
What can a FAI result in?
Tearing of the labrum or destruction of articular cartilage leading to osteoarthritis
What are the 3 types of FAI?
- pincer- acetabular involvement
- cam- femoral head involvement
- combination
What is the clinical presentation of FAI?
- Groin/ lateral hip pain
- Aggravated with turning, twisting, prolonged standing or squatting
What two tests can be used to test for FAI and which is superior?
- FADIR (superior) = knee/ hip flexion with adduction and internal rotation of the hip
- FABER = flexion, abduction, external rotation (aka Patricks, Figure of 4)
What imaging is used for FAI?
X-rays initially and CT/ MRI if needed
What is used in the treatment of FAI?
Decrease aggravating activities
NSAIDS
PT
If fails conservative treatment > surgical eval
What is the clinical presentation of a labral tear of the hip?
- Groin pain that radiates to lateral hip, anterior thigh, or buttock
- Catching, clicking that causes pain
What is performed in the physical exam for a labral tear of the hip?
ROM and strength testing, FADIR and FABER
What is the test of choice for imaging of a labral tear of the hip?
MR arthrogram
What is the snapping hip syndrome?
Snapping or popping sensation in hip with walking, getting up from chair, or swinging leg
What is the cause of the snapping hip syndrome?
Muscle or tendon sliding over bony prominence, which can lead to bursitis
What is an external cause of the snapping hip syndrome? Internal?
External: IT band over greater trochanter
Internal: Iliopsoas tendon over iliopentineal eminence or femoral head
Who is at increased risk of snapping hip syndrome?
Dancers, athletes with repetitive hip flexion, adolescents
What is the clinical presentation of snapping hip syndrome?
- Snapping/ popping sensation
- Pseudosubluxation
- Difficulty with stairs, running, arising from seated position
How could you reproduce the movement with an external cause of snapping hip syndrome?
Passive rotation of hip while laying on side
How could you reproduce the movement with an external cause of snapping hip syndrome?
FABER and then extend hip
What is the treatment for snapping hip syndrome?
Decrease aggravating activities
NSAIDs
PT
Corticosteroid injection
What is the most common cause of lateral hip pain in adults?
Greater trochanteric pain syndrome
What is the cause of greater trochanteric pain syndrome?
Repetitive overload tendinopathy
What is the clinical presentation of greater trochanteric pain syndrome?
Lateral hip pain localized to greater trochanter
Pain increased with pressure, walking, stairs, or prolonged standing
What is seen on the physical exam of greater trochanteric pain syndrome?
TTP over greater trochanter Pain with resisted abduction
+ Trendelenburg sign
What is the treatment for greater trochanteric pain syndrome?
Self-limiting
Acetaminophen/ NSAIDS, Heating pad
Steroid injection
What is seen on an abnormal Trendelenburg test?
Pelvis drops on unaffected side when standing on affected side due to weak hip abductors
Although injury of the MCL may be isolated, what is most commonly seen?
Triad of O’Donoghue (terrible triad) = ACL, MCL, medial meniscus
What is the most common MOI for an MCL sprain?
Knee flexion + foot planted AND lateral impact causing valgus rotation
Although an LCL sprain is rare, what is the most common MOI?
Tibial internal rotation and medial impact
What tests are used to check MCL and LCL for stability?
Valgus (MCL) and varus (LCL)
What is the most common ligament in the knee to be injured and what injury is it also associated with?
ACL; meniscus injury
Why is the ACL so important anatomically?
Most important structure for stability of the knee; prevents anterior translation and rotation of tibia
What is the MOI for an ACL injury?
Noncontact = quick position change with cutting Contact = direct blow causing hyperextension or valgus deformity with lateral impact
What would be reported in the history and clinical presentation of a patient with an ACL injury?
Feeling or hearing a “pop”
Immediate pain/ swelling
Feeling of instability, guarding
What is the preferred specialized test for an ACL injury?
Lachman’s test
What imaging should be used for diagnosing an ACL injury?
MRI*, x-ray considered for bony involvement
What is the treatment for an ACL injury?
RICE, refer to ortho, conservative vs surgical
What is the role of the PCL?
Prevents posterior translation of tibia and prevents external rotation
Largest and strongest ligament,
What is the MOI for a PCL injury?
Ant. impact with knee flexed at 90 degree
High energy trauma (MVA), low energy trauma (sports)
What is the clinical presentation of a PCL injury?
Mild-mod knee effusion
Generalized knee pain, “something isn’t right”
Limp
What specialized testing is used for a PCL injury?
Posterior drawer sign and posterior sag sign
What are the most important roles of the menisci?
Facilitate lubrication, shock absorption, stability
How does a meniscus injury occur?
Excessive rotational force (femur on tibia)
Which meniscus is more susceptible to injury and why?
Medial; greater forces and less mobile
How does a meniscus injury present clinically?
“Locking, catching”- inability to extend knee, joint line pain, stairs and squatting is painful
What is the most common specialized test used for a meniscus injury?
McMurray
Apley grind
What imaging is used for a meniscus injury?
MRI
What is the treatment for a meniscus injury?
Conservative vs surgical based on location and extent of tear
If there is pain with McMurrays test during internal rotation and varus stress, what injury do you suspect?
Lateral meniscus
If there is pain with McMurrays test during external rotation and valgus stress, what injury do you suspect?
Medial meniscus
What are the grades of a knee “sprain”?
Grade I- mild stretch
Grade II- partial tear
Grade III- complete tear
What is the treatment for a grade I, II, and III knee sprain?
I- RICE, WB as tolerated
II- RICE, brace, crutches, PT, possible surgery
III- surgery, crutches, brace, aggressive PT
What is the most common knee complaint in primary care, and what is it also called?
Patellofemoral Pain Syndrome
AKA: runner’s knee
What is the clinical presentation of patellofemoral pain syndrome?
Anterior pain under patella
Pain worse with stairs
Positive theater/ long car ride sign
Crepitus, popping, instability
What specialized testing is used for patellofemoral pain syndrome?
Patellar glide
Apprehension test
What is the treatment for patellofemoral pain syndrome?
Decrease aggravating activity
NSAIDs
Ice
PT
What is a Baker’s/ popliteal cyst?
Accumulation of joint fluid in the popliteal fossa
How does a Baker’s cyst present clinically?
Asymptomatic or pain/ swelling with prolonged standing/ activity
What is the treatment for Baker’s cyst?
NSAIDs, aspiration/ injection, compression brace
What is patella tendonitis?
Patellar tendon inflammation from repetitive trauma
What is the treatment for patella tendonitis?
ICE, NSAIDs, Brace, PT
What is the cause of iliotibial band syndrome (ITBS)?
Overuse injury
What is the clinical presentation of ITBS?
Gradual onset of localized pain (sharp burning to constant deep ache)
What is noted on the PE for ITBS?
Localized tenderness reproducible with ROM/ ITB compression
Evaluate for limb length discrepancy
What imaging/ treatment is used for ITBS?
Imaging not needed, treatment = RICE, NSAIDS, PT
What is knee bursitis and what are the most common areas affected?
Inflammation of the bursa caused by trauma/ overuse; prepatellar and per anserine
What is the clinical presentation of knee bursitis and what should you rule out?
Pain, swelling, tenderness; r/o infection
What is used for treatment/ prevention of knee bursitis?
Avoid precipitating factors, NSAIDS, aspiration/steroid injections, padding bracing
What is osteochondritis dissecans (OCD)? Where is it most common?
Idiopathic osteonecrosis of subchondral bone
Knee- Lateral portion of medial femoral condyle
What is the progression of OCD?
Trauma > hypovascularity > necrosis > chondromalacia > articular fragment
What is the clinical presentation of OCD?
Gradual onset of poorly localized deep pain
Limited WB
Popping, locking, catching = advanced
Intermittent swelling
What is seen with PE of knee OCD?
Pain with flexion over medial condyle
What imaging is used for OCD?
X-rays
MRI if needed
What treatment is used for stages I-III OCD?
Conservative treatment
What treatment is used for stage IV OCD (intraarticular loose body) or in skeletally mature patients?
Surgery- drilling = vascular ingrowth/ new bone formation, removal of articular fragment
What are the contents of the lateral ligament complex?
Anterior talofibular ligament, calcaneofibular ligament, and posterior talofibular ligament
What specialized test is used for a lateral ankle sprain?
Anterior drawer
What is the most commonly injured area in a medial ankle sprain and how is it injured?
Deltoid ligament complex; eversion injury
What is a syndesmotic ankle sprain and what specialized test is used for this?
High ankle sprain; test= squeeze test
What is the treatment for an ankle sprain?
RICE and NSAIDS
Short immobilization, PT
What is an acute injury of the achilles tendon?
Tendinopathy, rupture
What is an achilles tendon injury in a pediatric patient?
Calcaneal apophysitis (Sever’s disease)
What is the clinical presentation of an achilles tendon injury?
Tendinopathy- burning pain
Rupture - “sensation of violent hit or pop”
What is present on PE of an achilles tendon injury?
Patient prone, palpate along tendon for pain/ edema/ defect (plantar- and dorsiflexion)
What specialized test will be positive with an achilles tendon injury?
Thompson test
What treatment is used for an achilles tendon injury?
Ortho referral, immobilization, equinus splinting, boot for continued plantar flexed position
What is plantar fasciitis?
Inflammation of the fascia due to activity, heel spurs, per planus/ cavus, ankle pronation, poor shoe wear
One of the most common causes of foot pain (plantar aspect)
What is the clinical presentation of plantar fasciitis?
Pain with onset of walking (first step in morning)
What is found upon PE of plantar fasciitis?
Point tenderness
Pain aggravated by ROM
What diagnostics are used for plantar fasciitis?
X-ray
U/S or MRI if needed
What treatment is used for plantar fasciitis?
Prevention, ice, NSAIDS, rest
What is used for prevention of plantar fasciitis?
Improve shoe wear, PT, massaging, ortho/ podiatry referral if severe