Aim of this prospective, single-blind, randomized study was to compare the efficacy of the combination of celecoxib and pregabalin and celecoxib only monotherapy for treatment of chronic low-back pain.

The efficacy and safety of the association of celecoxib [a selective cyclooxygenase-2 (COX-2) inhibitor] and pregabalin (commonly used to control neuropathic pain), compared with monotherapy of each, were evaluated for the treatment of chronic low-back pain, a condition known to be due to neuropathic as well as nociceptive pain mechanisms.

We will compare the efficacy of the combination of a selective COX-2 inhibitor (celecoxib) and an antineuropathic drug, pregabalin, versus celecoxib only monotherapy, in the treatment of spinal stenosis.

Each treatment lasted 8 weeks

Primary outcome is mean pain reduction following different treatments regimes. Secondary outcomes are the changes of pain sensitivity, Oswestry disability index, adverse effects due to the treatments under study.

Inclusion Criteria:

• Spinal stenosis

Exclusion Criteria:

• Koval grade >=3
• Other musculoskeletal disorders which cause pain on other joint
• Bleeding risk or ulcer history
• Severe cardiovascular, pulmonary, renal, brain, liver dysfunction