{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T03:28:50Z","timestamp":1785382130306,"version":"3.55.0"},"reference-count":27,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2021,11,25]],"date-time":"2021-11-25T00:00:00Z","timestamp":1637798400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2021,11,25]],"date-time":"2021-11-25T00:00:00Z","timestamp":1637798400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2021,11,25]],"date-time":"2021-11-25T00:00:00Z","timestamp":1637798400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2022,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>Upper third tears of the subscapularis tendon can be repaired successfully with a single anchor according to previous literature. The aim of the present study was to compare three single anchor repair techniques regarding fixation strength, footprint coverage and contact pressure in a biomechanical test set\u2010up on human cadaveric shoulders.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Eighteen human cadaveric shoulders were randomized in three groups with respect to the repair technique; group 1: knotted lasso\u2010loop mattress, group 2: knotted mattress and group 3: knotless tape repair. Upper third tears of the subscapularis tendon (Lafosse type 2) were created and repairs were performed with additional contact pressure and area measurement using a pressure mapping system. Cyclic testing was performed by loading the subscapularis from 10 to 100\u00a0N for 300 cycles. A position\u2010controlled ramp protocol up to 30 and 50\u00a0N was used to allow for pressure measurements. Finally, specimens were loaded to failure and failure modes were recorded.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The three groups were not significantly different regarding age, gender, bone mineral density at the lesser tuberosity, subscapularis footprint size and defect area created at the upper subscapularis insertion. A significant difference was detected between group 1 (48.6\u2009\u00b1\u200913.8%) and group 2 (25.9\u2009\u00b1\u20095.7%) regarding pressurized footprint coverage (<jats:italic>p<\/jats:italic>\u2009=\u20090.028).<\/jats:p><jats:p>Ultimate load to failure was 630.8\u2009\u00b1\u2009145.3\u00a0N in group 1, 586.9\u2009\u00b1\u2009220.7\u00a0N in group 2 and 678.2\u2009\u00b1\u2009236.5\u00a0N in group 3, respectively. Cyclic displacement was similar in all three groups with an average displacement of 1.2\u2009\u00b1\u20090.6\u00a0mm. The highest stiffness was found in group 1 with 88\u2009\u00b1\u200930.3, which was not statistically significantly different to group 2 (65\u2009\u00b1\u200927\u00a0N\/mm) and group 3 (83.9\u2009\u00b1\u200932.9\u00a0N\/mm).<\/jats:p><jats:p>The most common mode of failure was suture cut\u2010through at the suture\u2013tendon interface (44%). Failures in group 3 were less common associated with suture cut\u2010through (33% vs. 50% in group 1 and 2), but no significant differences were found.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>All three tested single anchor repair techniques of upper third subscapularis tears were able to provide sufficient biomechanical stability. Knotted lasso\u2010loop mattress and knotless tape repair were superior regarding pressurized footprint coverage compared to a knotted horizontal mattress technique and are, therefore, preferable techniques for upper subscapularis repair.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-021-06808-0","type":"journal-article","created":{"date-parts":[[2021,11,25]],"date-time":"2021-11-25T09:03:47Z","timestamp":1637831027000},"page":"2105-2112","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Arthroscopic single anchor repair techniques for upper third subscapularis tears provide sufficient biomechanical stability"],"prefix":"10.1002","volume":"30","author":[{"given":"Paul","family":"Borbas","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics Balgrist University Hospital Forchstrasse 340 8008 Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sara","family":"Cammarata","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics Balgrist University Hospital Forchstrasse 340 8008 Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rafael","family":"Loucas","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics Balgrist University Hospital Forchstrasse 340 8008 Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simon","family":"Hofstede","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> Institute of Biomechanics ETH Zurich Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Florian B.","family":"Imhoff","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics Balgrist University Hospital Forchstrasse 340 8008 Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lukas","family":"Ernstbrunner","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics Balgrist University Hospital Forchstrasse 340 8008 Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karl","family":"Wieser","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics Balgrist University Hospital Forchstrasse 340 8008 Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,11,25]]},"reference":[{"key":"e_1_2_8_2_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546508314793"},{"key":"e_1_2_8_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.asmr.2021.01.029"},{"key":"e_1_2_8_4_2","doi-asserted-by":"publisher","DOI":"10.1053\/jars.2002.30648"},{"key":"e_1_2_8_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2007.02.018"},{"key":"e_1_2_8_6_2","doi-asserted-by":"publisher","DOI":"10.1067\/mse.2003.21"},{"key":"e_1_2_8_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.eats.2013.05.007"},{"key":"e_1_2_8_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2018.11.060"},{"key":"e_1_2_8_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.eats.2019.11.015"},{"key":"e_1_2_8_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/B978-0-7216-0013-0.50027-2"},{"key":"e_1_2_8_11_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301\u2010620X.73B3.1670434"},{"key":"e_1_2_8_12_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010010\u20101322\u2010y"},{"key":"e_1_2_8_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jse.2019.03.024"},{"key":"e_1_2_8_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2017.01.027"},{"key":"e_1_2_8_15_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301\u2010620X.75B1.8421011"},{"key":"e_1_2_8_16_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546505278259"},{"key":"e_1_2_8_17_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623\u2010200706000\u201000005"},{"issue":"1246","key":"e_1_2_8_18_2","first-page":"e1241","article-title":"A new technique to improve tissue grip: \u201cthe lasso\u2010loop stitch\u201d","volume":"22","author":"Lafosse L","year":"2006","journal-title":"Arthroscopy"},{"key":"e_1_2_8_19_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2004.09.020"},{"key":"e_1_2_8_20_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00402\u2010016\u20102540\u20107"},{"key":"e_1_2_8_21_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010015\u20103767\u20105"},{"key":"e_1_2_8_22_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2010.02.009"},{"key":"e_1_2_8_23_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546509332506"},{"key":"e_1_2_8_24_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546510383394"},{"key":"e_1_2_8_25_2","unstructured":"SgroiM KappeT LudwigM FuchsM DornacherD ReichelHet al. 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