CLINICAL CARE OF THE HIP, THIGH, AND KNEE Flashcards
What happens when the femoral head is displaced from the acetabulum?
Hip dislocation
What kind of hip dislocation is the most common?
Posterior dislocation (90%)
In what hip dislocation is the affected limb short, the hip is fixed in adduction and internally rotated?
Posterior dislocation
In what hip dislocation is the affected hip held in abduction and external rotation?
Anterior dislocation
What imaging should be obtained for a hip dislocation?
- Radiographs of hip, knee, and pelvis
2. CT to eval for fracture pattern
What is the disposition for a patient with a hip dislocation?
MEDEVAC
SIQ until eval by ortho
What should be performed ASAP to reduce the risk of osteonecrosis (happens in about 10% of cases)?
Reduction
Fractures of the femoral shaft are mostly caused by what?
High energy trauma
When evaluating the neurovascular status of a patient with a fracture of the femoral shaft what nerves should be assessed?
- Femoral
- Peroneal
- Posterior tibial
When evaluating the neurovascular status of a patient with a fracture of the femoral shaft what pulses should be assessed?
- Femoral
- Popliteal
- Posterior tibialis
- Dorsalis Pedis
What plain films should be obtained for a patient with a suspected fracture of the femoral shaft?
- Hip
- Knee
- Pelvis
- Femur
What is the treatment for a patient with a fracture of the femoral shaft?
- Immediate traction and splinting
- MEDEVAC
- Surgery
What fracture is often misdiagnosed or completely missed and often occurs in patients who undergo repetitive impact?
(Recruits, athletes, runners)
Stress fracture of the femoral neck
The following are symptoms associated with what?
- vague pain in the anterior groin or thigh
a. worse with activity or weight bearing
b. relieved with rest - story of increasing activity before onset
Stress fracture of the femoral neck
A patient presenting with the following may be experiencing symptoms associated with what?
- Antalgic gait
- Tenderness to proximal thigh/groin
- Limited ROM (internal rotation)
- Pain to groin/thigh with straight log roll
Stress fracture of the Femoral Neck
For patients with a stress fracture of the femoral neck radiographs are usually not diagnostic in most cases, what imaging would be more sensitive at detecting the fractures?
Bone scan/MRI
What is the treatment for a patient with a stress fracture of the femoral neck?
- analgesics
- ortho eval
- activity mod
a. crutches
b. non weight bearing
True or False
Usually fractures of the hip involve the pelvic ring or the acetabulum and vary greatly in severity
True
Patients with what kind of fracture will have a sensation of “coming apart” with weight bearing?
Fracture of the pelvis
True or False
Presentation of patient with a fracture of the pelvis depends on the severity
True
True or False
Peripheral nerve injuries are common in fractures of the pelvis
True
What radiographs should be obtained for patients with a fracture of the pelvis ?
- Pelvis
- Hip
- Head
- Cervical
- Chest
A hip strain usually involved several muscle groups around the hip such as what?
- Iliopsoas
- Sartorius
- Rectus femoris
True or False
Hip strains occur from vigorous muscle contraction while the muscle is in stretch
True
What special test would be used for a patient with a possible hip strain?
Thomas test for hip flexor tightness
What is the treatment for a hip strain?
- LLD/activity mod
- NSAIDS
- Pain free stretching and strengthening
- Run-walk program
a. progressive return to full duty - Send to ortho if failed conservative management
What injury of the thigh usually occurs when the actively contracted muscle is put on a stretch?
Thigh strain
True or False
The anterior thigh muscles (quadriceps) are more often injured more than the posterior thigh muscles (hamstring muscles)
False
The posterior thigh muscles (hamstring muscles) are injured more often than the anterior thigh muscles (quadriceps)
Strains or tears in the thigh typically occur where?
musculotendinous junction
A patient with what kind of strain typically reports a sudden onset of posterior or thigh pain that occurred while running or some other rapid movement?
Hamstring strain
True or False
Quadriceps strains are associated with direct blows during things such as contact sports
True
What is the more common strain of the thigh?
Hamstring strain
Are radiographs or other specialized imaging studies typically needed for patients with a thigh strain?
No
What imaging can confirm the thigh strain but is rarely indicated?
MRI
What is the cheaper and quicker alternative to confirm a thigh strain?
Ultrasound
What is the treatment for a thigh strain?
- RICE
- pain free stretching and strengthening of injured muscle
- NSAIDS
- Rehab depends on pts activity level and severity of injury
True or False
Inflammation and hypertrophy of the greater trochanteric bursa may develop without apparent cause
True
What could possibly be associated with lumbar spine disease, intraarticular hip pathology, significant limb-length inequalities, inflammatory arthritis, or previous surgery around the hip?
Trochanteric bursitis
*cause of lateral hip pain
Patients with the following symptoms may be experiencing what?
- Pain and tenderness over the greater trochanter (lateral hip pain)
- Pain may radiate distally to knee or ankle (not the foot) or proximally into the buttocks
- Pain worse when going from sitting to standing
- Unable to lie on the affected side
Trochanteric bursitis
Point tenderness over the lateral greater trochanter is the essential finding in what?
Trochanteric bursitis
Patients with what will report increased discomfort with hip adduction or adduction with internal rotation; resisted hip abduction also causes pain?
Trochanteric bursitis
What special tests should be performed for trochanteric bursitis?
- Trendelenburg
2. Faber
What is the treatment for trochanteric bursitis?
- NSAIDS
- LLD/ activity mod
- Hip strengthening (focus on abduction) and stretching
- Refer to ortho if conservative management failed
What ligament of the knee is a primary stabilizer of the knee?
Anterior cruciate ligament (ACL)
What ligament of the knee limits anterior translation of the tibia on the femur?
ACL
A tear in what ligament of the knee results from rotational (twisting) or hyperextension force?
ACL Tear
Patients with a tear to the ____ usually report sudden pain and giving way of the knee from a twisting or hyperextension injury?
ACL
What amount of patents report and audible “pop” as the ligament of the knee tears?
1/3
The physical exam findings below are associated with what ligamentous injury of the knee?
- Moderate to severe effusion
- Possible hemarthrosis
- Generalized knee tenderness
- Range of motion is limited by pain and effusion
- locking/popping sensation
ACL tear
What special tests should be performed for a patient with a suspected ACL Tear?
- Anterior drawer
- Lachman
Negative in many patients with ACL tear
True or False
ACL tear
Radiographs are needed to rule out other pathology but will typically be positive for effusion or avulsion fractures
True
What is the primary imaging study to confirm an ACL tear?
MRI
What is the treatment for an ACL tear?
- RICE
- LLD to include no running and cutting down activity
- Ortho consult
- PT consult
- Knee immobilizer or ROM brace can be used for comfort until acute pain subsides
Patients with a suspected ACL tear require an eval by who?
Ortho
What is the strongest ligament in the knee?
Posterior cruciate ligament (PCL)
What ligament of the knee prevents posterior translation of the tibia on the femur ?
PCL
What ligamentous injury of the knee is much less common than other ligamentous/meniscal injuries?
PCL tear
These four injury patterns suggest the possibility of what injury to the knee?
- Dashboard injury- posteriorly directed force to the anterior knee while in flexion
- Pure hyperflexion injury to the knee
- Hyperextension injury to the knee
- Fall onto flexed with with foot in plantar flexion
PCL injuries