Prognostic value of ultrasound tissue characterisation for a recurrence of mid-portion Achilles tendinopathy in military service members: a prospective cohort study.

Autor:	Paantjens MA; Sports Medicine Centre, Training Medicine and Training Physiology, Royal Netherlands Army, Utrecht, The Netherlands achillestendonimaging@gmail.com.; Department of Rehabilitation, Physical Therapy Science and Sports, University Medical Centre Utrecht, Utrecht, The Netherlands., Helmhout PH; Centre of Excellence, Training Medicine and Training Physiology, Royal Netherlands Army, Utrecht, The Netherlands., Backx FJG; Department of Rehabilitation, Physical Therapy Science and Sports, University Medical Centre Utrecht, Utrecht, The Netherlands., Martens MTAW; Fontys University of Applied Science, Paramedical Department, Eindhoven, The Netherlands., Bakker EWP; Department Epidemiology and Data Science, Division EPM, University Medical Center Amsterdam, Amsterdam, The Netherlands.
Jazyk:	angličtina
Zdroj:	BMJ military health [BMJ Mil Health] 2023 Sep 14. Date of Electronic Publication: 2023 Sep 14.
DOI:	10.1136/military-2023-002521
Abstrakt:	Introduction: Tendon structure in mid-portion Achilles tendinopathy (mid-AT) appears poorly associated with symptoms. Yet, degenerative tendon changes on imaging have been associated with an increased risk of mid-AT. We aimed to investigate the prognostic value of ultrasound tissue characterisation (UTC) for a mid-AT recurrence in service members reporting to be recovered following standard care. Methods: Mid-portion aligned fibrillar structure was quantified post-treatment in 37 participants. Recurrences were determined after 1 year of follow-up, based on self-perceived recurrence (yes/no) combined with a decrease in post-treatment Victorian Institute of Sports Assessment-Achilles score of at least the minimal important change of 7 points. Receiver operating characteristic curve analyses were used to determine a threshold for dichotomisation of outcomes for aligned fibrillar structure (normal representation/under-representation). Using multivariable logistic regression, the association between a mid-AT recurrence (yes/no) and the dichotomised aligned fibrillar structure was determined. Results: Eight participants (22%) experienced a recurrence. The threshold for aligned fibrillar structure was set at 73.2% (95% CI: 69.4% to 77.8%) according to Youden's index. Values below this threshold were significantly associated with a mid-AT recurrence (odds ratio (OR) 9.7, 95% CI: 1.007 to 93.185). The OR for a mid-AT recurrence was 1.1 (95% CI: 1.002 to 1.150) for each additional month of symptom duration. The explained variance of our multivariable logistic regression model was 0.423; symptom duration appeared to be a better predictor than aligned fibrillar structure. Conclusions: This study identified mid-portion aligned fibrillar structure and symptom duration as potential prognostic factors for a mid-AT recurrence in military service members. The threshold for aligned fibrillar structure of 73.2% can guide preventative interventions (eg, training load adjustments or additional tendon load programmes) aiming to improve tendon structure to minimise the future recurrence risk. Trial Registration Number: https://www.toetsingonline.nl/to/ccmo_search.nsf/Searchform?OpenForm, file number ToetsingOnline NL69527.028.19. Competing Interests: Competing interests: None declared. (© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
Databáze:	MEDLINE
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