Conditions: Thumb Carpometacarpal Joint Osteoarthritis
Keywords: thumb carpo metacarpal joint osteoarthritis prolotherapy intra articular steroid hand therapy
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 2
Healthy volunteers: yes

Brief summary:
Arthritis of the base of the thumb is a common debilitating problem. It is believed that laxity (loosening) of the joint leads to worsening arthritis in this joint. This can be treated by securing the joint surgically or symptoms can be treated with hand therapy and/or injection of corticosteroids. Recently prolotherapy (sugar water) has been shown to decrease looseness of joints and also be helpful for hand and knee arthritis. We hypothesize that prolotherapy injections for thumb arthritis will be equally or more beneficial to the patients than steroids.

Detailed description:
Dextrose prolotherapy has been shown to decrease anterior cruciate ligament (ACL) laxity and decrease knee joint pain. Similar to ACL laxity leading to knee osteoarthritis, laxity of the "beak" ligament can lead to worsening thumb CMC osteoarthritis. We hypothesize that dextrose intra-articular prolotherapy will have similar results in treating the pain and instability related to symptomatic thumb CMC osteoarthritis. This will be a prospective randomized double blind comparison study comparing Celestone to Dextrose intra-articular injections as adjuncts to hand therapy for the treatment of symptomatic thumb CMC osteoarthritis. Twenty patients will be randomized to each treatment arm to provide enough power to show a 20% change in visual analogue scale (VAS) for pain to be significant. We will utilize the ultrasound guided injection protocol described by the co-investigators for both treatment arms to ensure proper placement of the respective solutions. We will measure various grip strengths, and VAS pain scales prior to the first injection, prior to the second injection at 6 weeks and at the final visit at 6 months. A telephone follow-up with pain scale will be administered at 3 months. A Quick Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire measuring upper extremity functional impairment will be obtained at initial and final visits.

Arms:
arm 1: Subjects randomized to this arm will receive injection(s) of 10% dextrose solution in the affected thumb joint. arm 2: Subjects randomized to this arm will receive injection(s) of betamethasone solution in the affected thumb joint.

Interventions: intervention 1: Prolotherapy (10% dextrose solution) intervention 2: Betamethasone
Intervention descriptions: intervention 1: Dextrose diluted with sterile water. intervention 2: CELESTONE® SOLUSPAN® \* (betamethasone injectable suspension) Injectable Suspension is a sterile aqueous suspension containing 3 mg per milliliter betamethasone, as betamethasone sodium phosphate, and 3 mg per milliliter betamethasone acetate. Subjects will receive a 0.25 to 0.5 mL Celestone Soluspan injection.

Protocol document: