PMID- 24586746 OWN - NLM STAT- MEDLINE DCOM- 20141014 LR - 20221207 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 9 IP - 2 DP - 2014 TI - Comparative study of sex differences in distal femur morphology in osteoarthritic knees in a Chinese population. PG - e89394 LID - 10.1371/journal.pone.0089394 [doi] LID - e89394 AB - OBJECTIVES: The purpose of this study was to investigate sex differences in resected distal femoral morphology in Chinese osteoarthritic knees. METHODS: The study included 130 osteoarthritic knees in 65 men and 65 women in China. None had anterior femoral osteophyte or serious patellar femoral joint degeneration. The following were measured using computed tomography and analyzed to identify morphological differences according to sex in the resected distal femurs: anterior lateral condylar height (ALCH), anterior medial condylar height (AMCH), and mediolateral (ML) and anteroposterior (AP) dimensions. The ML/AP aspect ratio was calculated. RESULTS: The average ALCH and AMCH were 8.2+/-1.8 mm, 3.1+/-1.5 mm for men and 7.4+/-1.7 mm, 3.6+/-1.5 mm for women. There were significant differences between men and women in ALCH values (P = 0.014) but not in AMCH values (P = 0.09). Women had smaller ML/AP aspect ratios than men for a given AP dimension. This indicated that the femoral ML dimension of a prosthesis with a given AP dimension may have overhang in women. CONCLUSIONS: This study suggested that sex differences should be taken into account in the design of femoral prosthesis for Chinese men and women. FAU - Yang, Bo AU - Yang B AD - Institute of Sports Medicine, Peking University Third Hospital, Haidian District, Beijing, China. FAU - Yu, Jia-Kuo AU - Yu JK AD - Institute of Sports Medicine, Peking University Third Hospital, Haidian District, Beijing, China. FAU - Zheng, Zhuo-Zhao AU - Zheng ZZ AD - Department of Radiology, Peking University Third Hospital, Haidian District, Beijing, China. FAU - Lu, Zhi-Hua AU - Lu ZH AD - Institute of Sports Medicine, Peking University Third Hospital, Haidian District, Beijing, China. FAU - Zhang, Ji-Ying AU - Zhang JY AD - Institute of Sports Medicine, Peking University Third Hospital, Haidian District, Beijing, China. LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140219 PL - United States TA - PLoS One JT - PloS one JID - 101285081 SB - IM MH - Aged MH - *Asian People MH - Female MH - Femur/*pathology MH - Humans MH - Linear Models MH - Male MH - Middle Aged MH - Osteoarthritis, Knee/*pathology MH - *Sex Characteristics MH - Tomography, X-Ray Computed PMC - PMC3929686 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2014/03/04 06:00 MHDA- 2014/10/15 06:00 PMCR- 2014/02/19 CRDT- 2014/03/04 06:00 PHST- 2013/09/11 00:00 [received] PHST- 2014/01/20 00:00 [accepted] PHST- 2014/03/04 06:00 [entrez] PHST- 2014/03/04 06:00 [pubmed] PHST- 2014/10/15 06:00 [medline] PHST- 2014/02/19 00:00 [pmc-release] AID - PONE-D-13-37889 [pii] AID - 10.1371/journal.pone.0089394 [doi] PST - epublish SO - PLoS One. 2014 Feb 19;9(2):e89394. doi: 10.1371/journal.pone.0089394. eCollection 2014.