Background: Treatment options of painful degenerative changes of the distal interphalangeal joints (DIPJ) could be futile. Local subcutaneous peri-articular injection of steroids mixed with lidocaine, was evaluated.
Material and Methods:Consecutive patients with symptomatic osteoarthritis of the DIPJ for more than 4-weeks without favorable response to non-steroidal anti-inflammatory medications, were asked to participate in our study. All patients had demographic, clinical and lab parameters including hand x-rays, documented. These patients had subcutaneous peri-articular injection at the superior lateral and medial sides of each painful DIPJ of one hand of 4 mg (0.1 ml) of methylprednisolone acetate (MPA) mixed with 0.05 ml of 1% lidocaine at each side (group 1). DIPJ area pain level prior to and one, four and ten weeks following the local injections were evaluated using visual analogue scale (VAS). Age and sex-matched group of patients (group 2, control group), received 0.1 ml of normal saline mixed with 0.05 ml of 1% lidocaine, using the same approach.Results: Fourteen and 11 patients were recruited in groups 1 and group 2, respectively during 13-month period. There were 11 females and 3 male patients in group 1, with mean age of 48.5±8.9 years. Mean VAS values at baseline were 73 and 62 in groups 1 and 2, respectively, and 36 (p=0.0001), 48 (p=0.004) at week 1, 55 (p=0.001), 57 (p=0.286) at week 4, 59 (p=0.021), 59 (p=0.285), at week 10, respectively.
Conclusion:Subcutaneous peri-articular injection of MPA mixed with lidocaine significantly reduced DIPJ osteoarthritis pain, for at least 10 weeks.