{"doi":"10.17615/qws0-fx40","title":"Cross-sectional comparison of extended anteroposterior and posteroanterior fixed flexion positioning to assess radiographic osteoarthritis at the knee: The Johnston County Osteoarthritis Project","abstract":"To compare values for Kellgren-Lawrence (K-L) grade, joint space narrowing (JSN), and osteophytes (OST) in anteroposterior (AP) extended and fixed-flexion posteroanterior (PA-FF) radiographs obtained during a single clinic visit (the first follow-up of the Johnston County Osteoarthritis Project (JoCo OA)).","journal":"UNC Libraries","year":2020,"id":140721,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":0,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.5302,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2020-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":528888,"name":"Jordan B. Renner","orcid":"0000-0003-2137-3052","position":1,"is_corresponding":false},{"id":528934,"name":"Todd A. Schwartz","orcid":"0000-0002-0232-2543","position":2,"is_corresponding":false},{"id":331494,"name":"Amanda E. Nelson","orcid":"0000-0002-9344-7877","position":3,"is_corresponding":false},{"id":318561,"name":"Joanne M. Jordan","orcid":"0000-0003-2469-9955","position":4,"is_corresponding":false},{"id":523786,"name":"Jack Shreffler","orcid":"0000-0001-8210-0061","position":5,"is_corresponding":false},{"id":542938,"name":"Xiaoyan Shi","orcid":"0000-0003-1306-9122","position":0,"is_corresponding":true}],"reference_count":0,"raw_metadata":null,"created_at":"2026-07-18T23:17:20.701143Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}