Hoevenaars, D.P. (2015) What is the short-term effect of shockwave therapy on tendon structure as determined by UTC in healthy tendons? thesis, Sport Sciences.
Full text available on request.Abstract
Background: Patellar tendinopathy (PT) is an overuse injury with a high prevalence in jump related sports causing pain and poorer function. PT is associated with disorganisation of the collagen fibers causing a decreased quality of the tendon. Currently no clear evidence-based guideline for treatment exists. A promising treatment option for PT is shockwave therapy (SWT). Research has shown a positive effect of SWT on pain in PT. There are two SWTs available, focused (FSWT) and radial (RSWT). The effect of SWT on tendon structure is still unknown. Therefore the aim of this pilot study was to get a first insight in the effect of SWT on tendon structure and the difference between FSWT and RSWT determined by ultrasound tissue characterisation (UTC) in healthy tendons. Method: 22 subjects divided over 2 groups, FSWT (n=12) and RSWT (n=10), received three SWT sessions with a 1-week interval. Measurements were done pre and post each SWT session and with a 1-week follow up. Tendon structure was assessed by UTC and expressed as echo type percentages. Echo types range from echo type I which is considered as most aligned tendon bundle to echo type IV which is considered as least aligned tendon bundle. Secondary outcome measures were the VISA-P questionnaire, VAS for pain during rest, ADL, sport, after sport and after single leg decline squats (SLDS). General estimating equations were used to examine whether changes in tendon structure occurred over time of the total group and if the FSWT and RSWT groups differed from each other. Results: Significant changes were found over time: Echo type I (p = .02) and echo type II (p = .03). No significant differences were found between the FSWT and RSWT groups in echo type I (p = .73) and echo type II (p = .67). No significant changes were found over time or between FSWT and RSWT in the VISA-P questionnaire and VAS for pain during rest, ADL, sports, after sports, after SLDS (p > .05). Conclusion: This study showed that the effect of SWT on tendon structure was small over the course of 4 weeks. There seem to be no difference in effect between FSWT and RSWT on the tendon structure in healthy tendons. Low intensity SWT does not seem to have a negative effect on healthy tendon structure. In order to gain more insight in the effect of SWT on tendon structure, future studies should include PT patients and a longer follow up. Key words: Shock wave therapy, UTC, patellar tendinopathy, tendon structure, FSWT, RSWT.
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | Akker-Scheek, dr. I. van den and Elferink-Gemser, dr. M.T. |
| Faculty: | Medical Sciences |
| Date Deposited: | 12 Apr 2022 09:03 |
| Last Modified: | 12 Apr 2022 09:04 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/3089 |
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