Tennis Elbow
Conditions
Brief summary
The aim of the study is to compare two different injection sites of low dose botulinum toxin type A with steroid in treating lateral epicondylalgia.
Detailed description
Lateral epicondylalgia or tennis elbow is a common painful elbow disorder with a prevalence of 1% to 3% in the general population and has a higher rate up to 14.5% in strenuous jobs. Botulinum toxin type A injection was an emerging option in treating lateral epicondylalgia. In this study, the patients were randomly assigned into three groups: 1. Botox-Epic group received 20 units of Botox injection into lateral epicondyle; 2. Botox-Tend group had 20 units of Botox injected into tender point of muscles; 3. Steroid group had 40mg of triamcinolone injected into lateral epicondyle. The aim of this randomized controlled study was to compare the effects of injection with corticosteroid and botulinum toxin type A via two different sites in patients with lateral epicondylalgia.
Interventions
injected 20 units of Botox into lateral epicondyle in Botox-Epic group
injected 20 units of Botox into tender point of muscles in Botox-Tend group
injected 40mg of triamcinolone acetonide into lateral epicondyle in Steroid group
Sponsors
Study design
Eligibility
Inclusion criteria
* spontaneous local pain over lateral epicondyle of the affected elbow for more than six months and failure to respond to previous physical therapy or oral medications, * local tenderness around the lateral epicondyle, and * pain elicited or aggravated by resisted contraction of the wrist or middle finger extensors.
Exclusion criteria
* local steroid injection within the past six months, * coexisting elbow arthritis or arthralgia, * previous trauma or surgery history over the lateral epicondyle, * pregnancy or lactation, and * other systemic, neuromuscular or bleeding disorders that are contraindicated to Botox injection.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change of pain assessed on the visual analogue scale | baseline, 4 weeks, 8 weeks, 12 weeks, 16 weeks |
Secondary
| Measure | Time frame |
|---|---|
| Change of grip strength by dynamometer | baseline, 4 weeks, 8 weeks, 12 weeks, 16 weeks |
| Change of self-assessment by Patient-Rated Tennis Elbow Evaluation | baseline, 4 weeks, 8 weeks, 12 weeks, 16 weeks |
Countries
Taiwan