The efficacy of different therapeutic regimens for Lyme arthritis is r
eviewed, The first treatment for Lyme arthritis, intramuscular benzath
ine penicillin 2.4 million units weekly for 3 weeks, had a success rat
e of 35%, Another study employed intravenous penicillin G at a dosage
of 20 million units daily for 10 days, which cured 55% of patients, In
travenous ceftriaxone has been shown to be superior to penicillin with
a response rate of 94%. However, these results have been challenged i
n recent reports. Oral doxycycline or amoxicillin in association with
probenecid seems to work equally well although neuroborreliosis was mo
re frequent following treatment with amoxicillin. An anecdotal report
indicates the usefullness of long-term benzathine penicillin for chron
ic Lyme arthritis, Longterm antibiotic therapy, which is recommended a
lso for Reiter's syndrome, may be useful for eradicating the sanctuari
es of Borrelia burgdorferi. Disease-modifying drugs such as hydroxychl
oroquine or sulphasalazine, a drug which is commonly used in reactive
arthritis following enteric infections, may be of value in Lyme arthri
tis resistant to antibiotics but have not been tested to date, The rol
e of intraarticular injections of steroids or synovectomy is still con
troversial, Antibiotic treatment is the cornerstone of Lyme arthritis
treatment, Additional interventions should be studied for patients wit
h Lyme arthritis resistant to antibiotics.