Healing of human Achilles tendon ruptures: radiodensity reflects mechanical properties
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| 024 | 7 | 0 | |a 10.1007/s00167-013-2720-8 |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s00167-013-2720-8 | ||
| 245 | 0 | 0 | |a Healing of human Achilles tendon ruptures: radiodensity reflects mechanical properties |h [Elektronische Daten] |c [Thorsten Schepull, Per Aspenberg] |
| 520 | 3 | |a Purpose: This study tests the idea of using radiodensity from computed tomography to quantitatively evaluate the healing of ruptured Achilles tendons. Methods: The radiodensity of the healing tendons in sixty-five patients who were treated for Achilles tendon rupture was measured. The hypothesis was that density would correlate with an estimate for e-modulus, derived from strain, measured by radiostereometry with different mechanical loadings. Results: Radiodensity 7weeks after injury was decreased to 67% (SD 11) of the contralateral, uninjured tendon. There was no improvement in radiodensity from 7 to 19weeks, whereas at 1year, it had increased to 106% (SD 7). Only 2 of 52 measured values at 1year were lower than the highest value at 19weeks, i.e. there was minimal overlap. The variation in radiodensity could explain 80% of the variation in e-modulus, but radiodensity correlated only weakly with e-modulus at each time point separately. At 1year, both radiodensity and e-modulus correlated with functional results, although weakly. Conclusions: From 19weeks onwards, radiodensity appears to reflect mechanical properties of the tendon and might to some extent predict the final outcome. Radiodensity at 7weeks is difficult to interpret, probably because it reflects both callus and damaged tissues. Level of evidence: Prospective, diagnostic study, Level II. | |
| 540 | |a Springer-Verlag Berlin Heidelberg, 2013 | ||
| 690 | 7 | |a Density |2 nationallicence | |
| 690 | 7 | |a CT |2 nationallicence | |
| 690 | 7 | |a Modulus of elasticity |2 nationallicence | |
| 690 | 7 | |a Mechanical properties |2 nationallicence | |
| 700 | 1 | |a Schepull |D Thorsten |u Orthopedics, Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linköping University, 58185, Linköping, Sweden |4 aut | |
| 700 | 1 | |a Aspenberg |D Per |u Orthopedics, Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linköping University, 58185, Linköping, Sweden |4 aut | |
| 773 | 0 | |t Knee Surgery, Sports Traumatology, Arthroscopy |d Springer Berlin Heidelberg |g 23/3(2015-03-01), 884-889 |x 0942-2056 |q 23:3<884 |1 2015 |2 23 |o 167 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s00167-013-2720-8 |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s00167-013-2720-8 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Schepull |D Thorsten |u Orthopedics, Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linköping University, 58185, Linköping, Sweden |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Aspenberg |D Per |u Orthopedics, Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linköping University, 58185, Linköping, Sweden |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Knee Surgery, Sports Traumatology, Arthroscopy |d Springer Berlin Heidelberg |g 23/3(2015-03-01), 884-889 |x 0942-2056 |q 23:3<884 |1 2015 |2 23 |o 167 | ||