caa a22 4500 605458111 CHVBK 20210128100227.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00167-013-2726-2 doi (NATIONALLICENCE)springer-10.1007/s00167-013-2726-2 Long-term biomechanical outcomes after Achilles tendon ruptures [Elektronische Daten] [Claudio Rosso, Daniel Buckland, Caroline Polzer, Patrick Sadoghi, Reinhard Schuh, Lukas Weisskopf, Patrick Vavken, Victor Valderrabano] Purpose: The ideal treatment for Achilles tendon ruptures is still unknown. Biomechanical were correlated to radiological and clinical parameters to study outcomes. Methods: In this retrospective, assessor-blinded multi-centre cohort study, 52 patients with unilateral Achilles tendon rupture were assessed, each at least 3years after injury. Patients underwent open surgery, percutaneous surgery or non-surgical treatment of Achilles tendon rupture. Both legs underwent plantar pressure distribution and isokinetic measures. Demographic parameters, maximum calf circumference (MCC) and clinical scores (American Orthopaedic Foot and Ankle Society, Achilles tendon rupture score, Hannover) were also evaluated. Complications were not assessed. Results: Peak plantar flexion torque (PPFT) was significantly weaker on the treated side compared to the untreated leg [80.4±29.7Nm (mean±SD) vs. 92.1±27.4Nm, p<0.0001]. PPFT and push-off force (POFF) were not different between treatment groups nor was there a leg difference in POFF alone. There was only a weak correlation of clinical scores and PPFT or POFF, respectively. MCC correlated significantly with both PPFT (R 2=0.21, p=0.01) and POFF (R 2=0.29, p<0.0001). POFF appeared to be a predictor of PPFT (R 2=0.31, p<0.0001). Open surgery outperformed non-surgical treatment in terms of centre-of-pressure line (p=0.007), torque per muscle volume (p=0.04) and relative POFF per body weight (p=0.02) and relative in side comparison (p=0.03). Conclusions: Clinical scores do not predict biomechanical outcomes. Clinically measured MCC is a good predictor of PPFT and POFF and can easily be used in clinical practice. Relative POFF in side comparison as well as per body weight favours surgical treatment. Springer-Verlag Berlin Heidelberg, 2013 Peak plantar flexion torque nationallicence COP nationallicence Achilles tendon rupture nationallicence Plantar pressure distribution (PPD) nationallicence Rosso Claudio Orthopaedic Department, University Hospital Basel, University of Basel, Spitalstrasse 21, 4031, Basel, Switzerland aut Buckland Daniel Orthopaedic Department, University Hospital Basel, University of Basel, Spitalstrasse 21, 4031, Basel, Switzerland aut Polzer Caroline Orthopaedic Department, University Hospital Basel, University of Basel, Spitalstrasse 21, 4031, Basel, Switzerland aut Sadoghi Patrick Department of Orthopaedic Surgery, Medical University Graz, Graz, Austria aut Schuh Reinhard Department of Orthopaedics, Vienna General Hospital, Medical University of Vienna, Vienna, Austria aut Weisskopf Lukas Rennbahn Clinic, Muttenz, Switzerland aut Vavken Patrick Orthopaedic Department, University Hospital Basel, University of Basel, Spitalstrasse 21, 4031, Basel, Switzerland aut Valderrabano Victor Orthopaedic Department, University Hospital Basel, University of Basel, Spitalstrasse 21, 4031, Basel, Switzerland aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/3(2015-03-01), 890-898 0942-2056 23:3<890 2015 23 167 https://doi.org/10.1007/s00167-013-2726-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00167-013-2726-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rosso Claudio Orthopaedic Department, University Hospital Basel, University of Basel, Spitalstrasse 21, 4031, Basel, Switzerland aut NATIONALLICENCE 700 1- Buckland Daniel Orthopaedic Department, University Hospital Basel, University of Basel, Spitalstrasse 21, 4031, Basel, Switzerland aut NATIONALLICENCE 700 1- Polzer Caroline Orthopaedic Department, University Hospital Basel, University of Basel, Spitalstrasse 21, 4031, Basel, Switzerland aut NATIONALLICENCE 700 1- Sadoghi Patrick Department of Orthopaedic Surgery, Medical University Graz, Graz, Austria aut NATIONALLICENCE 700 1- Schuh Reinhard Department of Orthopaedics, Vienna General Hospital, Medical University of Vienna, Vienna, Austria aut NATIONALLICENCE 700 1- Weisskopf Lukas Rennbahn Clinic, Muttenz, Switzerland aut NATIONALLICENCE 700 1- Vavken Patrick Orthopaedic Department, University Hospital Basel, University of Basel, Spitalstrasse 21, 4031, Basel, Switzerland aut NATIONALLICENCE 700 1- Valderrabano Victor Orthopaedic Department, University Hospital Basel, University of Basel, Spitalstrasse 21, 4031, Basel, Switzerland aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/3(2015-03-01), 890-898 0942-2056 23:3<890 2015 23 167