Week 10 - physical exam of the hip Flashcards
what are the clinical entities of groin pain
adductor related groin pain
iliopsoas related
inguinal related
pubic related
hip related
hip joint OA
adductor related groin pain (ACUTE)
Is common is sports involving sudden change in direction.
Presentation – acute onset, adductor longus most commonly injured muscle.
Symptoms – groin tenderness/pain on muscle palpation, stretch or contraction.
Clinical signs:
o Palpation – pain on muscle belly or musculotendinous junction near origin, on inferior pubic ramus.
o Adductor tenderness AND pain on resisted adduction.
o Positive tests on – resisted outer range adduction, positive squeeze test with hip neutral in long level. Passive adductor stretch
o If all three tests are positive – provide approx. 80% probability of a positive MRI in adductors.
Can be one recurrent or chronic if not properly managed.
adductor related groin pain (TENDINOPATHY)
Presentation – graduation onset, chronic or overuse.
Symptoms – proximal groin pain, initially pain with increased activity, may improve once warmed up, possible loss of speed and or kicking distance, if untreated, pain tends to persist during activity.
Clinical signs:
o Pain on palpation of adductor origin
o Pain with passive hip abduction (stretch)
o Pain with resisted hip adduction (contraction)
o Positive squeeze test @ 0 degrees and 45 degrees.
iliopsoas related groin pain - acute onset
Rectus femoris acute injury with kicking and sprinting.
Iliopsoas acute injury with change of direction in sports.
Clinical signs:
o Iliopsoas or rectus femoris palpation
Negative palpation = 100% probability of negative MRI.
Positive palpation = poor probability of positive MRI.
iliopsoas related groin pain - long standing or chronic
Often related to repetitive activities and or accumulated overload in activities with excessive hip flexion (e.g., kicking, dancing).
o Iliopsoas tendinopathy
o Snapping iliopsoas tendon over iliopectineal eminence/femoral head.
o Iliopsoas bursitis.
Presentation – groin pain, deep ache, usually unilateral.
o Pain on palpation
o Pain on resisted hip flexion and or pain on hip flexion stretching.
snapping hip syndrome (anterior) - iliopsoas
Snapping hip syndrome (Anterior) – iliopsoas tendon
Iliopsoas ‘snaps’ over iliopectineal eminence causing audible ‘clunk’.
Presentation – ‘clunk’ anterior hip, usually no MOI or history of trauma.
o Common in young women.
Symptoms:
o Audible ‘clunk’ – often asymptomatic – is snap felt internal or external to hip joint.
o Can be bilateral.
o Can develop pain with clunk – if painful snapping hip they may have concomitant.
o May be associated with iliopsoas bursitis.
Clinical signs:
o Start with hip in flexion and abduction, ask patient t eccentrically lower leg into extension with guidance – see if there is a reproduction of snap.
o Or ask the patient to simply reproduce the snap.
o Palpate snap – try and change it with applied pressure over the tendon.
inguinal related groin pain - abdominal wall
Inguinal related groin pain – abdominal wall
Rectus abdominus insertion:
o Pain in the inguinal canal region AND tenderness of the inguinal canal at insertion of the rectus abdominus on pubic rami.
o No palpable inguinal hernia is present.
o Due to acute strain while lifting or overuse injury caused by excessive abdominal contractions.
o Pain aggravated by resistance testing of the abdominal muscles or on Valsalva/cough/sneeze.
Inguinal hernia – posterior inguinal wall weakness.
o Gradual onset, poorly localise groin pain increasing with activity e.g., kicking and coughing/sneezing.
o Pain could be felt in the groin, genital area, it could be abdominal pain and they may experience urinary symptoms or bowel symptoms.
o Need to refer for medical review immediately if suspecting an inguinal hernia.
o May also involve tears in transverse Abd or external oblique fascia/aponeurosis.
pubic related groin pain (osteitis pubis)
Presentation:
o Sometimes referred to as “sportsman groin.”
o May be secondary to repetitive microtrauma – training overload. Insidious gradual onset.
o Unsure of true pathophysiology.
o Involves pubic bone and pubic symphysis.
o In adolescents, pubic or adductor related groin pain could be due to apophysitis.
o Could include multiple pathologies.
Pubic bone edema/stress reaction/periostitis pubis/ enthesopathy/adductor insertion tendinopathy.
Consider age, type or sport and loading of the athletes with presenting symptoms.
symptoms – symphysis pain on palpation, aggravated by exercises (twisting, turning, kicking), eases with rest, symptoms may be present during and after activity, may have over 6 weeks of longstanding pain – time of onset of symptoms is important.
pubis related groin pain - pubic bone stress
clinical signs:
o Local tenderness of pubic symphysis and on immediately adjacent bone, positive squeeze test.
Diagnostic imaging
o Bone changes seen on X-ray, MRI, and CT.
o Bone change may be evident in early stages and degenerative changes in chronic stages.
differentiation of groin pain
palpation
hip related groin pain
- Femoral acetabular impingement (FAI) syndrome
- acetabular dysplasia and or hip instability
- Other conditions without distinct osseous morphology (labral tear/ligamentum teres tears, chondral pathology).
femoral acetabular impingement
- Femoral acetabular impingement (FAI) syndrome – “a motion related clinical disorder of the hip with a triad of symptoms, clinical signs, and imaging findings. It represents symptomatic premature contact between the proximal femur and the acetabulum.”
Types of morphology:
o Cam – increased bone formation at anterior surface of femur – decreased femoral head-neck offset. Associated with intra-articular head-neck offset.
o Pincer – bony growth at acetabular, generally anterior.
o Mixed – both cam and pincer present.
cam vs pincer morphology
for femoral acetabular impingement
cam vs pincer morphology
for femoral acetabular impingement
Cam/pincer morphology
Can be present radiographically but be asymptomatic (10-25% of people)
Commonly seen in young athletes – football/soccer, ballet, hockey, martial arts – hip loading in adolescents may be a risk factor for cam morphology.
Cam morphology development:
Mainly when the proximal femoral growth plate is open.
Rare after closure of the proximal femoral growth plate.
clinical presentation of femoral acetabular impingement
Clinical presentation
Diagnosis – clinical and imaging positive findings.
Symptoms:
o Motion or position related hip/groin pain and/or pain in the back, buttock, or thigh – pain increased with walking, running, swatting, performing lateral/cutting movements.
o May also have clicking, catching, locking, stiffness, restricted ROM or giving way.
Clinical signs:
o Hip impingement tests (FADIR) reproduce their pain.
o Limited hip ROM -> IR in flexion.
Investigations:
o X ray – AP view of pelvis and Dunn view for the lateral femoral neck.
o MRI – 3D hip morphology, cartilage, ligamentum teres and labral lesions – cross sectional view.
o May be associated with previous slipped femoral epiphysis or congenital hip dysplasia.
acetabular dysplasia and or hip instability
Anatomy – fibrocartilage ring and dense CT attached to the bone acetabulum rim.
o Acetabulum labrum depends on acetabulum for stability and increased contact area of acetabulum to distribute load.
o Has a blood and nerve supply, therefore is pain sensitive.
Presentation – most common intra-articular hip injury in athletes – 22% of athletes with hip pain.
o Anterior-superior tears are most common:
Grade I – detachment from hyaline cartilage at acetabular rim
Grade II – cleavage tears within substance of labrum.
o Patients with a labral tear have a 40% change they may also have chondropathy.
acetabular labral tear
Acetabular labral tear
Causes:
o Trauma – single or repetitive trauma – rotation and flexion, repetitive pivoting, hip flexion, twisting or direct trauma (fall/MVA).
o Congenital – due to acetabular or hip dysplasia.
o Capsular laxity – due to systemic connective tissue disorder or repetitive activities.
o Idiopathic – may be associated with FAI (cam or pincer morphology) syndrome.
Symptoms – anterior groin pain, gradual onset of symptoms or related to trauma/injury, pain increases with activities.
o Ask patient is pain is intermittent, a sharp catching pain, clicking, locking, catching, giving way.
o Ask patient if they have referred pain in other areas such as buttock and/or anterior thigh.
Diagnostic imaging
o X-ray – WB AP view and lateral hip view
o MRI and MRA most sensitive, CT scan, arthroscopy gold standard.
ligamentum teres tears
intraarticular ligament with proprioception and stabilization role in hip joint.
- is taut in flexion, adduction and ER.
- tears common in athletes (type 1 is a partial tear, type 2 is a complete rupture, and type 3 is degenerate ligament)
MOI - forced flexion and adduction with ER or IR or twisting motions.
diagnostic imaging - MR athrography and CT arthrography.
Capsuloligamentous laxity (+/- hip instability)
Capsuloligamentous laxity (+/- hip instability)
o Traumatic laxity +/- instability:
* Hip dislocation – fall on flexed knee and hip or form dashboard (MVA).
* Repetitive rotation movements with axial loading
* Trauma – stretching of capsule, possible labral damage/tears of ligamentum teres.
* Recurrent dislocations.
o Atraumatic instability
* In hypermobility congenital conditions, generalised ligamentous laxity, acetabular dysplasia or in athletes (gold, football).
o Symptoms
* Feeling of instability
* Pain in hip/groin region which may increase with activity.
o Clinical signs
* Decrease hip ROM +/- pain.
* Anterior hip pain with passive E + ER in prone.
* Passive accessory glides of the hip – hypermobile.
hip related groin pain - osteoarthritis (OA)
Synovial joint’s age-related response to abnormal loading from a traumatic incident or repetitive microtrauma
OQ can affect whole joint organ – including cartilage, subchondral bone, inflammation of the synovium and synovial lining thickening.
Leads to pain and stiffness, muscle changes and functional limitations.
Kallgren and Lawrence scores 1-4 based on:
o Subchondral bone sclerosis
o Joint space narrowing
o Osteophytes – acetabular and femoral
o Subchondral cysts
Femoral head superior migration, secondary to articular cartilage loss.
MRI – the scoring hip osteoarthritis with MRI method
o Early microscopic cartilage changes
o Osteophytes
o Subchondral cysts
o Inflammation
o Muscle atrophy
o Other joint changes
o High sensitivity (95.7%) and specificity (84.8%) in detecting cartilage lesions.
hip OA predisposing factors
anterior pain - common conditions - Hip OA
Age – increased risk in over 55-year-olds, with further increased risk in those over 65.
Gender - women increased risk.
Genetic predisposition.
Ethnicity or race – lower incidence in Asian cultures than white Caucasian.
Morphological abnormalities/developmental disorders.
Leg length difference
History of lower limb or hip trauma.
Occupational factors – manual labor/physical stress work and sporting activities.
Increased weight or obesity (BMI)
clinical diagnosis criteria for hip OA
set A :
- over 50 years
- hip pain
- hip IR is greater than or equal to 15 degrees.
- pain with IR
- morning stiffness for 60min or more
Set B:
- over 50 years.
- hip pain.
- hip IR less than 15 degrees.
OA symptoms
Hip joint pain and pain anterior or posterior or lateral hip region +/- referral to thigh or knee.
Deep “ache” or discomfort with sharp stabbing pain.
Hip joint pain and stiffness restricted mobility.
Stiffness in early morning eases less than 60 mins.
Stiffness after rest, decreases with movement.
Pain usually related with activity e.g., walking or stairs.
Difficulty putting socks and shoes on.
