{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T16:51:18Z","timestamp":1792083078916,"version":"4.4.0"},"reference-count":47,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T00:00:00Z","timestamp":1783555200000},"content-version":"vor","delay-in-days":8,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["esskajournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J. exp. orthop."],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To evaluate serial changes in isokinetic knee muscle strength before and after medial patellofemoral ligament reconstruction (MPFL\u2010R) and to assess whether subjective clinical outcomes reflect objective functional recovery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>In this prospective study, 39 patients (mean age 25.2\u2009\u00b1\u20099.0 years) undergoing MPFL\u2010R for recurrent patellar instability were evaluated preoperatively and at 6 and 12 months postoperatively. Subjective outcomes were assessed using the knee injury and osteoarthritis outcome score (KOOS) and the Kujala score. Objective functional recovery was evaluated with isokinetic testing of knee extensors and flexors at 60\u00b0\/s and 180\u00b0\/s using a Biodex dynamometer. Strength and limb symmetry were compared over time between the operated and nonoperated limbs.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      KOOS and Kujala scores improved significantly at 12 months compared with preoperative values (both\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001), indicating marked subjective clinical improvement. Isokinetic testing showed significant increases in peak torque of both extensors and flexors in the operated limb over time. However, a persistent quadriceps strength deficit of the operated limb compared with the contralateral limb remained at 12 months, particularly for knee extensors. In contrast, hamstring strength deficits decreased significantly, indicating better recovery of flexor strength.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Although MPFL\u2010R results in significant improvements in patient\u2010reported outcomes, objective isokinetic testing reveals persistent quadriceps strength deficits up to 12 months postoperatively. These findings suggest that subjective clinical scores may overestimate functional recovery. Objective strength assessment should be incorporated into return\u2010to\u2010sport decision\u2010making following MPFL reconstruction.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level II.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/jeo2.70844","type":"journal-article","created":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T14:13:39Z","timestamp":1783606419000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Good clinical but inferior functional outcomes following surgical patellar stabilisation: A prospective study"],"prefix":"10.1002","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3245-945X","authenticated-orcid":false,"given":"Oliwer","family":"Sygacz","sequence":"first","affiliation":[{"name":"Department of Paediatric Orthopaedics and Rehabilitation Medical University Lublin Poland"},{"name":"Doctoral School of the Medical University of Lublin Lublin Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5577-5768","authenticated-orcid":false,"given":"Martyna","family":"Jarocka","sequence":"additional","affiliation":[{"name":"Department of Physiotherapy Fundamentals, Faculty of Physical Education and Health in Bia\u0142a Podlaska J\u00f3zef Pi\u0142sudski University of Physical Education in Warsaw Warsaw Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomasz","family":"Sacewicz","sequence":"additional","affiliation":[{"name":"Department of Biomechanics and Anatomy, Faculty of Physical Education and Health in Bia\u0142a Podlaska J\u00f3zef Pi\u0142sudski University of Physical Education in Warsaw Warsaw Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacek","family":"Walawski","sequence":"additional","affiliation":[{"name":"Ortosport Lublin Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,7,9]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-016-4040-2"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.1055\/a-1667-2241"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.12968\/hmed.2020.0429"},{"key":"e_1_2_12_5_1","unstructured":"Biodex Medical Systems. Biodex multi\u2010joint system \u2013 3 pro. Setup\/operational manual. Biodex Medical Systems; 2021."},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.3390\/jcm13175288"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.otsr.2022.103530"},{"key":"e_1_2_12_8_1","doi-asserted-by":"publisher","DOI":"10.32098\/mltj.01.2016.08"},{"key":"e_1_2_12_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2015.01.006"},{"key":"e_1_2_12_10_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0302215"},{"key":"e_1_2_12_11_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0144283"},{"key":"e_1_2_12_12_1","first-page":"139","article-title":"Using the discrete wavelet transform in assessing the effectiveness of rehabilitation in patients after ACL reconstruction","volume":"19","author":"Czaplicki A","year":"2017","journal-title":"Acta Bioeng Biomech"},{"key":"e_1_2_12_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.rehab.2021.101543"},{"key":"e_1_2_12_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.otsr.2014.12.001"},{"key":"e_1_2_12_15_1","doi-asserted-by":"publisher","DOI":"10.1177\/23259671251391815"},{"key":"e_1_2_12_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.csm.2009.12.008"},{"key":"e_1_2_12_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jsams.2007.04.009"},{"key":"e_1_2_12_18_1","doi-asserted-by":"publisher","DOI":"10.1097\/BPO.0000000000002752"},{"key":"e_1_2_12_19_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0042-122855"},{"key":"e_1_2_12_20_1","doi-asserted-by":"publisher","DOI":"10.1177\/23259671251325748"},{"key":"e_1_2_12_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2023.01.098"},{"key":"e_1_2_12_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0749-8063(05)80366-4"},{"key":"e_1_2_12_23_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12178-022-09792-1"},{"key":"e_1_2_12_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.asmr.2021.09.030"},{"key":"e_1_2_12_25_1","doi-asserted-by":"publisher","DOI":"10.1177\/23259671211026624"},{"key":"e_1_2_12_26_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2021.08.006"},{"key":"e_1_2_12_27_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12891-021-04636-4"},{"key":"e_1_2_12_28_1","doi-asserted-by":"publisher","DOI":"10.1155\/2015\/456858"},{"key":"e_1_2_12_29_1","first-page":"494","article-title":"Rehabilitation following medial patellofemoral ligament reconstruction for patellar instability","volume":"12","author":"Manske RC","year":"2017","journal-title":"Int J Sports Phys Ther"},{"key":"e_1_2_12_30_1","doi-asserted-by":"publisher","DOI":"10.1080\/00913847.2018.1547086"},{"key":"e_1_2_12_31_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00264-017-3433-2"},{"key":"e_1_2_12_32_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-014-3172-5"},{"key":"e_1_2_12_33_1","doi-asserted-by":"publisher","DOI":"10.1177\/23259671211052021"},{"key":"e_1_2_12_34_1","doi-asserted-by":"publisher","DOI":"10.3390\/children9121892"},{"key":"e_1_2_12_35_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00590-020-02636-z"},{"key":"e_1_2_12_36_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-015-3654-0"},{"key":"e_1_2_12_37_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmjopen-2014-006947"},{"key":"e_1_2_12_38_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546513482085"},{"key":"e_1_2_12_39_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12306-016-0397-0"},{"key":"e_1_2_12_40_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546521990004"},{"key":"e_1_2_12_41_1","doi-asserted-by":"publisher","DOI":"10.2519\/jospt.1998.28.2.88"},{"key":"e_1_2_12_42_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00264-015-2856-x"},{"key":"e_1_2_12_43_1","doi-asserted-by":"publisher","DOI":"10.1177\/2325967119828953"},{"key":"e_1_2_12_44_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-022-06934-3"},{"key":"e_1_2_12_45_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2007.08.008"},{"key":"e_1_2_12_46_1","doi-asserted-by":"publisher","DOI":"10.4085\/1062-6050-0207.22"},{"key":"e_1_2_12_47_1","doi-asserted-by":"publisher","DOI":"10.26444\/aaem\/178137"},{"key":"e_1_2_12_48_1","doi-asserted-by":"publisher","DOI":"10.26603\/001c.129257"}],"container-title":["Journal of Experimental Orthopaedics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jeo2.70844","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/jeo2.70844","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jeo2.70844","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T16:03:19Z","timestamp":1792080199000},"score":1,"resource":{"primary":{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/10.1002\/jeo2.70844"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7]]},"references-count":47,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2026,7]]}},"alternative-id":["10.1002\/jeo2.70844"],"URL":"https:\/\/doi.org\/10.1002\/jeo2.70844","archive":["Portico"],"relation":{},"ISSN":["2197-1153","2197-1153"],"issn-type":[{"value":"2197-1153","type":"print"},{"value":"2197-1153","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,7]]},"assertion":[{"value":"2026-04-06","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-06-25","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-07-09","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e70844"}}