{"id":"https://openalex.org/A5041789580","orcid":"https://orcid.org/0000-0001-9852-3173","observed_orcids":["https://orcid.org/0000-0001-9852-3173"],"display_name":"Ronald P. Karze\u0142","raw_author_names":["R Karzel","R P Karzel","Ronald Karzel","Ronald P Karzel","Ronald P. Karzel","Ronald P. Karze\u0142","Ronald P. Karze\u0142, MD"],"full_name":"Ronald P. Karzel","works_count":27,"cited_by_count":3640,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":18,"i10_index":18},"ids":{"openalex":"https://openalex.org/A5041789580","orcid":"https://orcid.org/0000-0001-9852-3173","observed_orcids":["https://orcid.org/0000-0001-9852-3173"]},"affiliations":[{"institution":{"id":"https://openalex.org/I4210152701","ror":"https://ror.org/05megwx07","display_name":"Southern California Orthopedic Institute","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210152701"]},"years":[2020,2017,2014,2013,2010,2006,2003,2000,1995,1993,1991,1990]}],"last_known_institutions":[{"id":"https://openalex.org/I4210152701","ror":"https://ror.org/05megwx07","display_name":"Southern California Orthopedic Institute","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210152701"]}],"topics":[{"id":"https://openalex.org/T10280","display_name":"Shoulder Injury and Treatment","count":22,"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":13,"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/T11218","display_name":"Hip disorders and treatments","count":10,"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":9,"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","count":7,"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":0.0002177,"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":0.0001099,"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/T11218","display_name":"Hip disorders and treatments","value":5.57e-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/T10630","display_name":"Orthopedic Surgery and Rehabilitation","value":2.93e-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":2.17e-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":0.9793156385421753},{"id":"2776511800","wikidata":"https://www.wikidata.org/wiki/Q1764136","display_name":"Rotator cuff","score":0.9381648302078247},{"id":"141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","score":0.7465661764144897},{"id":"2779162959","wikidata":"https://www.wikidata.org/wiki/Q708232","display_name":"Arthroscopy","score":0.6793667078018188},{"id":"126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","score":0.5163034796714783}],"counts_by_year":[{"year":1990,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2006,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2010,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":159},{"year":2013,"works_count":2,"oa_works_count":0,"cited_by_count":155},{"year":2014,"works_count":1,"oa_works_count":0,"cited_by_count":163},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":152},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":103},{"year":2017,"works_count":1,"oa_works_count":0,"cited_by_count":142},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":114},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":120},{"year":2020,"works_count":1,"oa_works_count":0,"cited_by_count":125},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":112},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":93},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":81},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":74},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":87},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":61}],"display_name_alternatives":["R Karzel","R P Karzel","Ronald Karzel","Ronald P Karzel","Ronald P. Karzel","Ronald P. Karze\u0142","Ronald P. Karze\u0142, MD"],"block_key":"r karzel","works_api_url":"https://api.openalex.org/works?filter=author.id:A5041789580","updated_date":"2026-11-06T12:48:51","created_date":"2016-06-24T00:00:00"}