A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Muscle-tendon morphomechanical properties of non-surgically treated Achilles tendon 1-year post-rupture (2022)
Khair, R. M., Stenroth, L., Cronin, N. J., Reito, A., Paloneva, J., & Finni, T. (2022). Muscle-tendon morphomechanical properties of non-surgically treated Achilles tendon 1-year post-rupture. Clinical Biomechanics, 92, Article 105568. https://doi.org/10.1016/j.clinbiomech.2021.105568
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Khair, Ra'ad M.; Stenroth, Lauri; Cronin, Neil J.; Reito, Aleksi; Paloneva, Juha; Finni, Taija
Lehti tai sarja: Clinical Biomechanics
ISSN: 0268-0033
eISSN: 1879-1271
Julkaisuvuosi: 2022
Volyymi: 92
Artikkelinumero: 105568
Kustantaja: Elsevier BV
Julkaisumaa: Alankomaat
Julkaisun kieli: englanti
DOI: https://doi.org/10.1016/j.clinbiomech.2021.105568
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Osittain avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/79546
Julkaisu on rinnakkaistallennettu: https://eprints.glos.ac.uk/10594/
Tiivistelmä
Achilles tendon rupture appears to alter stiffness and length of the tendon. These alterations may affect the function of tendon in force transmission and in energy storage and recovery. We studied the mechanical properties of the Achilles' tendon post-rupture and their association with function.
Methods
Twenty-four (20 males, 4 females) participants (mean age: 43 y, 176 cm, 81 kg) were recruited. Ultrasonography and dynamometry were used to assess the muscle-tendon unit morphological and mechanical properties of non-surgically treated patients 1-year post rupture.
Findings
Injured tendons were longer with difference of 1.8 cm (95%CI: 0.5–1.9 cm; P < 0.001), and thicker by 0.2 mm (0.2–0.3 mm; P < 0.01). Medial gastrocnemius cross-sectional area was 1.0 cm2 smaller (0.8–1.1 cm2; P < 0.001), fascicles were 0.6 cm shorter (0.5–0.7 cm; P < 0.001) and pennation angle was 2.5° higher (1.3–3.6°; P < 0.001) when compared to the uninjured limb. We found no differences between injured and uninjured tendon stiffness 1-year post-rupture (mean difference: 29.8 N/mm, −7.7–67.3 N/mm; P = 0.170). The injured tendon showed 1.8 mm (1.2–2.4 mm; P < 0.01) lower elongation during maximal voluntary isometric contractions. Patient-reported functional outcome was related to the tendon resting length (β = 0.68, r(10) = 4.079, P = 0.002). Inter-limb differences in the medial gastrocnemius fascicle length were related to inter-limb differences in maximum contractions (β = 1.17, r(14) = 2.808, P = 0.014).
Interpretation
Longer Achilles tendon resting length was associated with poorer self-evaluated functional outcome. Although the stiffness of non-surgically treated and uninjured tendons was similar 1-year post rupture, plantar flexion strength deficit was still present, possibly due to shorter medial gastrocnemius fascicle length.
YSO-asiasanat: kantajänne; tuki- ja liikuntaelimet; raajat; vammat; ultraäänitutkimus; jäykkyys; itsearviointi
Vapaat asiasanat: akillesjänne
Liittyvät organisaatiot
Hankkeet, joissa julkaisu on tehty
- Mitkä tekijät ennustavat Akillesjänteen toiminnan hyvää palautumista akuutin repeämän
jälkeen?- Juutinen, Taija
- Suomen Akatemia
OKM-raportointi: Kyllä
Raportointivuosi: 2022
JUFO-taso: 1