Joint Lesions • One of the common cause of infectious arthritis in developing countries Never a primary lesion it is always a sequelae of pulmonary or lymph node tuberculosis It can occur at any age.
Aug 07, 2015
Joint Lesions• One of the common cause of infectious arthritis
in developing countries
Never a primary lesion it is always a sequelae of pulmonary or lymph node tuberculosis
It can occur at any age.
Tuberculosis Diagnosis
long history
involvement of single joint
marked thickening of the synovium
marked muscle wasting
periarticular osteoporosis
+ve Mantoux test
TuberculosisClinical Features
contact with TB
pain, swelling, loss of weight
joint swelling
decrease ROM
ankylosis
deformity
Clinical featuresConstitutional
symptoms
Malaise
Loss of appetite/weight loss
Night sweats .
Night fever .
Specific features
Stiffness
Enlarged lymph nodes
Neurodeficit
Joint TB - InvestigationsPlain x-rays often normal
MRI can be helpful in diagnosis1
But there needs to be a high index of suspicion to request this
Aspiration of synovial fluid for TB culture
Synovial biopsyie tissue for TB culture should sent in saline
or waterHigher yield2
1. Desai.J Bone Joint surg Br.19942. osteoarticular TB in a general hospital in the last decade.ruiz.clin microbiol
infect.2003
Tuberculosis Investigation
FBC , ESR,
Mantoux
NOT IN:
MILIARY TB / RECENTLY VACCINATED/ ON STEROIDS / REDUCED IMMUNITY / FEVER
Xray -soft tissue swelling
-periarticular osteoporosis
-joint appear washed out articular space narrowing
Joint aspiration AAFB identified in 10-20% culture +ve in 50% of cases
Joint TB - ManagementStandard quadruple therapy*
Rifampicin
Isoniazid
Pyrazinamide
Ethambutol
*short course chemotherapy for spinal Tb.parthasarathy.journal of bone and joint surgery.1999
Radiographic features
Plain film
early stages (stage of synovitis and arthritis)
• periarticular demineralisation(osteoporosis)
• joint space widening (due to joint effusion)
• mild subchondral erosion
late stages (stage of erosion and destruction)
• gradual narrowing of joint space (there is involvement of articular cartilage)
• severe subchondral erosion and destruction• pathological subluxation and dislocation• fibrous ankylosis • atrophic changes in bones may occur and lead to
atrophic arthropathy (seen in shoulder joint as carries sicca)
Tuberculosisdifferential diagnosis
transient synovitis
monoarticular RA .
haemorhagic arthritis
pyogenic arthritis
TB OF SHOULDERUncommon .
Start as osteitis but rarely diagnosed ,untile arthritis has supervened
May be form absces and sinus .
Some cases have get fibrosis tendency or ankylosis .
If there is no exudate term used CARIES SICCA .
Caries sicca : there is erosion and destruction of humoral head and glenoid cavity with soft tissue swelling, along with fibrotic opacites in the right upper and middle lobe.
CLINICAL FEATURES
Mainly in adult .
Complain of constant ache and stiffness for many months or years .
Wasting muscle especialy deltoid m .
Sinus may be present over the shoulder or in axilla .
Diffuse warmth and tenderness .
Limited movement and painful .
Axillary LN enlargment .
X-ray
Generaly rarefaction .
Usually with some erosion of joint surface .
There may be absces cavity in the humerus or glenoid with little or no periosteal reaction .
TREATMENT ;
Anti- TB drug + shoulder rested untile acute symptoms have settled , movement encouraged .
If there extensively destroyed :joint should be arthrodesed
TB OF ELBOW Pathology
Elbow is affected in about 10 % of pts with sk . tuberculosis
Start as synovitis or osteomyelitis , pts rarely seen untile arthritis supervenes
CLINCAL FEATURES :
Onset insidious with long Hx of aching and stiffness
SIGN ; muskle wasting
followActive stage :
joint is held flexed ,swellen ,warm ,diffusely tender ,
Movement limited accompanied with pain and spasm .
X-RAY :- Prei-articular osteoporosis .
- Joint erosion
-subchondral cystic lesions .
DIAGNOSIS :
Aspiration ,synovial biopsy and micobiological investigation
TTT :
General antituberculous treatment .
Elbow is rested until the acute symptoms subside – at first in splint and positioned at 90 degree of flexsion and mid-rotation , later applying collar and cuff , movement is encouraged .
Late residual effect : ch .pain , or deformity by : arthroplasty or arthrodesis .
TB OF THE WRISTRarely .
Pain and stiffness icreased gradually .
Hand feels weak .
forearm looks wasted .
Wrist is swollen and warm , involvement of flexor tendon compartment ,lead to rise to large fluctuant swelling that crosses wrist into the palm [compound palmar ganglion ]
Sinus [neglected cases ] .
Mov .are restricted and painful .
followX-ray :
Localized osteoporosis
Irregularity of radio-carpal and intercarpal joint .
Bone erosion (sometimes) .
Diagnosis :
1-Should be D .Dx with RA .
TB: one wrist is affected .
RA : Bilateral
2- x-ray .
3- serological .
4- biopsy :necessary .
TTT : - ANTI –TB DRUG + wrist is splinted .
If there abscess : drainage .
If wrist destroyed :systemic ttt should be continued until diz .is quiescent and then arthrodesed .
TB OF THE HIP Start as synovitis or as osteomyelitis .
Artheritis develop occurs rapid destruction and pathological dislocation .
Healing usually leaves fibrous ankylosis with considerible limb shortening and deformity .
Clinical featurs:
Start insidiously with aching in groin , thigh and slight limp .
Later : sever pain and may wake the pt from sleep .
FOLLOW Early diz . : (synovitis or osteomyelitis ) the joint
is held flexed and abducted .
Exterme of movement are restricted and painful (difficult diagnosis) .
If artheritis supervenes:
- the hip becomes flexed adducted and medially rotated , obovious muscl wasting .
All mov .are grossly limited by pain and spasm .
ossly
FollowX-RAY
Early changes:
General rarefaction but with normal joint space and outline .
Femoral epiphysis may be enlarged or bone abscess visible .
In artheritis :
General rarefaction + destruction of acetabular roof (wandering acetabulum) 0r femoral head and usually both .
The joint may be subluxed or even dislocated .
FOLLOWHealing : the bone recalcify .
If treated early : leaving normal or almost normal hip .
Once the articular surface is destroyed unsound fibrous joint .
Untreated cases : leg become scarred and thin , sever shortening (because bone destruction , adduction and flexion deformity of the hip .
In children:
Damage to upper femoral epiphysis and occasionally premature fusion of lower femoral epiphysis .
TTTANTI TB DRUG
Skin traction-is applied .
For children : abduction frame .
Abscess in femoral neck : evacuated .
Artheritis does not settle : joint debridement .
If diz . Subside : traction is discontinue and movement is encouraged .
Follow If joint destroyed : arthrodesis usually not
before the age of 14 yrs .
In older pt with residual pain and deformity :
total joint replacement
TB OF KNEE May appear in any age ,but more common on
children then adult .
c\p:
Early pain , limp .
Swollen joint
Wasted muscle of thigh .
Mov . Restricted – painful .
Investigation :Mantoux test : positive .
ESR : increase .
X-ray :” osteoporosis
- enlarge bony epiphysis (children )
In late stage : joint surfaces are eroded .
DIAGNOSIS :
Mono-articular rheumatoid synovitis or juvenile ch . Artheritis ( D.Dx)
Synovial biopsy.
TTTGeneral ANTI-TB chemotherapy for 6-9 month .
In active stage :
knee is rested in bed splint ,(subside synovitis) , but if no :” after few wks . Surgical debridement .
In healing stage :
wearing wt – relieving caliper .gradually left off , but pt kept under observation ; for any sign of recurrent inflam.
If articular surface destroyed , immobilization is continued until the joint stiffness .
***In the after math :
joint may be painful ;it is then arthrodesed.
but in children usually postponed until growth is almost completed .
The ideal positon for fusion is 15 degree of flexion and 7 degree of valgus .
Sometimes joint replacement feasible .
TB OF THE ANKLE Start as synovitis or as osteomelitis .
Present befor true artheritises superven ; because walking is painfiul .
Ankle swollen and marked calf wasted .
Feel :
-skin warm .
-mov. Restricted .
- snius formation .(EARLY )
FOLLOW X-RAY :
RAREFACTION .
Sometimes bone abscess .
-with late disease : narrowing and irregularity joinrt space .
TTT:
ANTI-TB DRUG + Removable splint ; used to rest the foot
Arthrodesis in stiffness of artheritis .
Joint TB - managementUsually 6 months is standard
No controlled trials for peripheral joint TB
6 months?
12 months?
Do they require surgery?
Joint TB - managementHowever, if treatment is delayed, there can be considerable
loss of function and a requirement for extensive surgical intervention.
TherapyMedical therapy usually sufficient
Surgery in selected cases (cord compression, progressive neurology, marked kyphosis)
6(-9) months therapy 2HRZE+ 4HR
Indications for surgery patients aged less than 15 years, in whom the
initial angle of kyphosis is more than 30º
patients started on ambulant chemotherapy who develop progressive kyphosis
Indications for surgery children aged less than ten years with
destruction of vertebral bodies who have partial or no fusion even during programme
patients with compression of the spinal cord in whom the neurological status deteriorates in spite of chemotherapy
Key messagesPeripheral joint tuberculosis should be considered
in any patient with chronic joint pain
and particularly if there is swelling present
and especially if the patient is from an ethnic group with a high background incidence of tuberculosis.
Biopsy and culture is important to identify MDR-TB
Chemotherapy is sufficient in many cases and surgery is helpful in selected cases