Sero negative Spondyloarthritis
Seronegative SpondyloarthritisThis term is applied to a group of inflammatory joint diseases , distinct from rheumatoid arthritis , that are thought to share similar pathogenesis , they all show considerable overlap and similarity of articular and extra articular clinical features
Seronegative Spondyloarthritis
Ankylosing Spondylitis Reactive arthritis including Reiters syndrome Psoriatic arthritis Arthropathy associated with IBDClinical features common to Sero –ve SP Asymmetrical inflammatory oligoarthritis ( lower limbs more than upper limbs) Sacroilitis and inflammatory spondylitis Inflammatory ethesitis Tendency for familial aggregation -ve RF Absence of nodules Association with HLA - B27
Clinical features common to Sero –ve SP Overlapping extra articular features Mucosal surface inflammation ( conjunctivitis , buccal ulceration , urethritis , prostatitis , bowel ulceration , postural skin lesion and nail dystrophy ) Anterior uveitis Aortic root fibrosis Erythema nodosum
conjunctivitis
postural skin lesion and nail dystrophyErythema nodosum
Ankylosing Spondylitis
It’s chronic inflammatory arthritis with predilection to the sacroiliac J. and spine , characterized by progressive stiffening and fusion of the axial skeleton
Epidemiology
Peak onset in second to third decade Male : female ratio about 3:1 90% of the affected persons are HLA-B27 +ve Increase faecal carriage of Klebsiella aerogenesClinical features
Low back pain with morning stiffness , radiate to the buttock or posterior thigh Symptoms relieved by movement The lumbosacral area are first affected followed by neck and thoracic symptoms The disease tend to ascend the spine slowly and eventually become ankylosed , spinal rigidity and secondary osteoporosis which predispose to spinal fractureClinical features
Pleuritic chest pain Plantar fasciitis , Achiles tendonitis and tenderness of bony prominence as iliac crest , greater trochanter Peripheral arthritis in 40 % of cases Early physical signs : Failure to obliterate the lumbar lordosis on forward flexionLoss of lordosis
Clinical featuresPain on sacroiliac compression Restriction of movement of the lumbar spine in all directions Restriction of chest expansion Flexion deformity , Kyphosis of the dorsal and cervical spine
Clinical features
Extra articular features : Ant. Uveitis 25% and conjunctivitis 25 % Prostatitis 20 % Aortic incompetence , MI , cardiac conductive defect , pericarditis Amyloidosis Atypical upper lobe pulmonary fibrosisInvestigations
Elevated ESR , CRP , ( may be normal )RF –ve Radiographic signs :Takes many years to developSacroiliitis ( irregularity at lower synovial part with loss of lower cortical margin ) , widening of the J. space and then marginal sclerosis , narrowing and fusion
Bilateral Sacroiliitis
Bilateral SacroiliitisBilateral Sacroiliitis ( widening of J .space )
Sclerosis and widening of J spaceFusion of SI joint
Fusion of SI jointComplete Fusion of SI joint
Investigations
Ossifications of the ant. Longitudinal ligaments and facet J. fusion , bridging syndesmophyte ( symmetrical and marginal ) , the combination of all these result in bamboo spine Ant squaring of the vertebrae due to erosion and sclerosis of the ant. corners Erosive changes seen in symphysis pubis , ischial tuberosity and peripheral J. Osteoporosis and atlanto axial dislocation
Interspinous ligament ossification
Squaring of vertebraeBamboo spine (fusion )
Bamboo spine ( complete fusion )Interspinous ligament ossification
Cervical ankylosisManagement
Daily back extension exercise Swimming is ideal exercise Avoid poor bed and chair posture NSAIDs for reliving of pain DMARDs as Salfasalazin , MTX , Azathioprine control peripheral synovitis Local corticosteroid injection in plantar fasciitis ( other enthesopathy ) Surgery may be neededPrognosis
75 % of patients are able to remain in employment Severe hip , knee or shoulder disease carry poor prognosis
Reactive arthritis
Reactive arthritisReiter’s disease is the triad of : non- specific urethritis conjunctivitis Reactive arthritisReiter’s disease follows : Bacterial Dysentery mainly salmonella , shigella, campylobacter or yersinia Sexually acquired infection with chlamydia
conjunctivitis
EpidemiologySex ratio male to female 15 : 1Aged 16 – 35 years
Clinical features
Onset : acute ( classical condition ) inflammatory oligoarthritis affecting large and small Js of lower limbs , 1 -3 weeks following sexual exposure or an attack of dysentery Systemic disturbance with fever , weight loss and vasomotor changes in the feet Subacute or insidious single J. involvement over days turns into asymmetric oligoarthritis symptoms of urethritis , conjunctivitis may be minimal or absentAcute Reactive arthritis of PIP & MCP Js.
Chronic severe arthritis with deformity and nail pathology
Chronic arthritis with onycolysis and onycomycosis
Clinical featuresExtra articular manifestations : Circinate balanitis (20 -25 %) Keratoderma blenorrhagica ( 15 % ) Nail dystrophy with sub unqual hyperkeratosis Buccal lesion (10 % )
Keratoderma blenorrhagica
Keratoderma blenorrhagicaClinical features
The first attack of arthritis is self limiting with spontaneous remission of symptom within 2-4 m. of onset 60 % had recurrent or chronic arthritis 15- 20 % of chronic arthropathy develop Sacroliitis 30 % of patients with recurrent arthritis develop uveitis Other features are uncommon : Peripheral neuropathy , CNS disease as seizures , meningoencephalitisInvestigations
Increase ESR , CRP , normocromic normocytic anaemia Synovial fluid : Low viscosity , presence of Giant macrophage (Reiter’s cells )Urethritis confirmed by presence of mucoid threads in the first void specimen of urineHigh vaginal swab may reveal ChlamydiaStool culture are usually negative at time of arthritis-ve RF , ANAInvestigations
X-RAY –ve in acute conditionPeriarticular osteopenia , J. space narrowing and marginal proliferative erosion may develop with chronic disease Large fluffy cacaneal spurRadiologic SI often asymmetrical and sometime unilateralSyndesmophyte are coarse non marginalErosions of PIP Js.