{"id":"https://openalex.org/A5043872124","orcid":"https://orcid.org/0000-0002-5564-209X","observed_orcids":["https://orcid.org/0000-0002-5564-209X"],"display_name":"Kai\u2013Axel Witt","raw_author_names":["K A Witt","K-A Witt","K-A. Witt","K. -A. Witt","K. A. Witt","K. Witt","K.-A Witt","K.-A. Witt","K.A. Witt","KA Witt","Kai A Witt","Kai-Axel Witt","Kai\u2010Axel Wit","Kai\u2010Axel Witt","Kai\u2013Axel Witt"],"full_name":"Kai\u2010Axel Witt","works_count":45,"cited_by_count":633,"summary_stats":{"2yr_mean_citedness":5.333333333333333,"h_index":16,"i10_index":19},"ids":{"openalex":"https://openalex.org/A5043872124","orcid":"https://orcid.org/0000-0002-5564-209X","observed_orcids":["https://orcid.org/0000-0002-5564-209X"]},"affiliations":[{"institution":{"id":"https://openalex.org/I22465464","ror":"https://ror.org/00pd74e08","display_name":"University of M\u00fcnster","country_code":"DE","type":"education","lineage":["https://openalex.org/I22465464"]},"years":[2002]},{"institution":{"id":"https://openalex.org/I4210103666","ror":"https://ror.org/01856cw59","display_name":"University Hospital M\u00fcnster","country_code":"DE","type":"healthcare","lineage":["https://openalex.org/I4210103666"]},"years":[2021,2003,2002]},{"institution":{"id":"https://openalex.org/I4210140489","ror":"https://ror.org/03y9e9713","display_name":"Raphaelsklinik M\u00fcnster","country_code":"DE","type":"healthcare","lineage":["https://openalex.org/I4210140489"]},"years":[2024]},{"institution":{"id":"https://openalex.org/I4210153936","ror":"https://ror.org/0467x3v78","display_name":"Orthop\u00e4dische Praxis","country_code":"DE","type":"healthcare","lineage":["https://openalex.org/I4210153936"]},"years":[2024,2020,2017,2013,2008,2007,2006]}],"last_known_institutions":[{"id":"https://openalex.org/I4210140489","ror":"https://ror.org/03y9e9713","display_name":"Raphaelsklinik M\u00fcnster","country_code":"DE","type":"healthcare","lineage":["https://openalex.org/I4210140489"]},{"id":"https://openalex.org/I4210153936","ror":"https://ror.org/0467x3v78","display_name":"Orthop\u00e4dische Praxis","country_code":"DE","type":"healthcare","lineage":["https://openalex.org/I4210153936"]}],"topics":[{"id":"https://openalex.org/T10280","display_name":"Shoulder Injury and Treatment","count":40,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10630","display_name":"Orthopedic Surgery and Rehabilitation","count":28,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10512","display_name":"Orthopaedic implants and arthroplasty","count":20,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T12411","display_name":"Shoulder and Clavicle Injuries","count":15,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10455","display_name":"Foot and Ankle Surgery","count":8,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"topic_share":[{"id":"https://openalex.org/T12411","display_name":"Shoulder and Clavicle Injuries","value":0.0002501,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10280","display_name":"Shoulder Injury and Treatment","value":0.0001993,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10630","display_name":"Orthopedic Surgery and Rehabilitation","value":9.1e-05,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10512","display_name":"Orthopaedic implants and arthroplasty","value":6.43e-05,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10455","display_name":"Foot and Ankle Surgery","value":2.47e-05,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9850828647613525},{"id":"2776511800","wikidata":"https://www.wikidata.org/wiki/Q1764136","display_name":"Rotator cuff","score":0.9497358798980713},{"id":"2778336525","wikidata":"https://www.wikidata.org/wiki/Q708178","display_name":"Arthroplasty","score":0.8693521618843079},{"id":"141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","score":0.7528570890426636},{"id":"2780105995","wikidata":"https://www.wikidata.org/wiki/Q232358","display_name":"Tendon","score":0.7323086857795715}],"counts_by_year":[{"year":2002,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":14},{"year":2013,"works_count":1,"oa_works_count":0,"cited_by_count":19},{"year":2014,"works_count":1,"oa_works_count":0,"cited_by_count":20},{"year":2015,"works_count":1,"oa_works_count":0,"cited_by_count":16},{"year":2016,"works_count":1,"oa_works_count":0,"cited_by_count":18},{"year":2017,"works_count":2,"oa_works_count":0,"cited_by_count":18},{"year":2018,"works_count":3,"oa_works_count":1,"cited_by_count":23},{"year":2019,"works_count":2,"oa_works_count":1,"cited_by_count":29},{"year":2020,"works_count":3,"oa_works_count":0,"cited_by_count":40},{"year":2021,"works_count":4,"oa_works_count":1,"cited_by_count":40},{"year":2022,"works_count":5,"oa_works_count":1,"cited_by_count":60},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":44},{"year":2024,"works_count":3,"oa_works_count":0,"cited_by_count":61},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":50},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":49}],"display_name_alternatives":["K A Witt","K-A Witt","K-A. Witt","K. -A. Witt","K. A. Witt","K. Witt","K.-A Witt","K.-A. Witt","K.A. Witt","KA Witt","Kai A Witt","Kai-Axel Witt","Kai\u2010Axel Wit","Kai\u2010Axel Witt","Kai\u2013Axel Witt"],"block_key":"k witt","works_api_url":"https://api.openalex.org/works?filter=author.id:A5043872124","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5043872124","updated_date":"2026-11-12T13:17:38","created_date":"2016-06-24T00:00:00"}