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Article: Total knee arthroplasty for primary knee osteoarthritis: Changing pattern over the past 10 years

TitleTotal knee arthroplasty for primary knee osteoarthritis: Changing pattern over the past 10 years
Authors
KeywordsArthroplasty
Hong Kong
Knee
Knee joint
Osteoarthritis
Registries
Replacement
Issue Date2011
PublisherHong Kong Medical Association. The Journal's web site is located at http://www.hkmj.org/resources/supp.html
Citation
Hong Kong Medical Journal, 2011, v. 17 n. 1, p. 20-25 How to Cite?
AbstractObjective: To review the epidemiology of total knee arthroplasty for primary osteoarthritis and the change of patient characteristics over the last decade. Design: Retrospective review. Setting: A tertiary referral centre for joint replacement surgery in a teaching hospital in Hong Kong. Patients: All patients who underwent primary total knee arthroplasty for primary knee osteoarthritis from January 2000 to December 2009. Results: In all, 1157 total knee arthroplasties (589 left and 568 right) were performed on 588 females and 162 males. The annual number of total knee arthroplasties increased from 91 in 2000 to 181 in 2009. The annual number of patients increased from 58 (46 female, 12 male) in 2000 to 159 (117 female, 42 male) in 2009. When compared yearly results, there were no significant changes in the preoperative Knee Society Knee Score, Knee Society Functional Assessment, and passive range of motion of these patients. However, there was a significant decreasing trend with regard to lower limb mechanical axis mal-alignment, from 15.1° deviation from the neutral axis in 2000, to 14.8° deviation in 2004, and then 12.9° deviation in 2009 (mostly varus deformity). There was no difference between left knees and right knees, and between females and males. The mean age of the patients did not show significant change over the past decade, but the number and proportion of patients over 80 years old showed an increase from 4.8% (2000 to 2004) to 13.8% (2005 to 2009). On the other hand, the number and proportion of patients under the age of 60 years did not change. Conclusions: There was an increasing trend towards total knee arthroplasties, both in terms of number of operations and patients. The number of younger patients having total knee arthroplasty did not increase over the last 10 years, whereas the number of those older than 80 years increased significantly over that period.
Persistent Identifierhttp://hdl.handle.net/10722/137458
ISSN
2015 Impact Factor: 0.887
2015 SCImago Journal Rankings: 0.279
References

 

DC FieldValueLanguage
dc.contributor.authorYan, CHen_HK
dc.contributor.authorChiu, KYen_HK
dc.contributor.authorNg, FYen_HK
dc.date.accessioned2011-08-26T14:25:28Z-
dc.date.available2011-08-26T14:25:28Z-
dc.date.issued2011en_HK
dc.identifier.citationHong Kong Medical Journal, 2011, v. 17 n. 1, p. 20-25en_HK
dc.identifier.issn1024-2708en_HK
dc.identifier.urihttp://hdl.handle.net/10722/137458-
dc.description.abstractObjective: To review the epidemiology of total knee arthroplasty for primary osteoarthritis and the change of patient characteristics over the last decade. Design: Retrospective review. Setting: A tertiary referral centre for joint replacement surgery in a teaching hospital in Hong Kong. Patients: All patients who underwent primary total knee arthroplasty for primary knee osteoarthritis from January 2000 to December 2009. Results: In all, 1157 total knee arthroplasties (589 left and 568 right) were performed on 588 females and 162 males. The annual number of total knee arthroplasties increased from 91 in 2000 to 181 in 2009. The annual number of patients increased from 58 (46 female, 12 male) in 2000 to 159 (117 female, 42 male) in 2009. When compared yearly results, there were no significant changes in the preoperative Knee Society Knee Score, Knee Society Functional Assessment, and passive range of motion of these patients. However, there was a significant decreasing trend with regard to lower limb mechanical axis mal-alignment, from 15.1° deviation from the neutral axis in 2000, to 14.8° deviation in 2004, and then 12.9° deviation in 2009 (mostly varus deformity). There was no difference between left knees and right knees, and between females and males. The mean age of the patients did not show significant change over the past decade, but the number and proportion of patients over 80 years old showed an increase from 4.8% (2000 to 2004) to 13.8% (2005 to 2009). On the other hand, the number and proportion of patients under the age of 60 years did not change. Conclusions: There was an increasing trend towards total knee arthroplasties, both in terms of number of operations and patients. The number of younger patients having total knee arthroplasty did not increase over the last 10 years, whereas the number of those older than 80 years increased significantly over that period.en_HK
dc.languageengen_US
dc.publisherHong Kong Medical Association. The Journal's web site is located at http://www.hkmj.org/resources/supp.htmlen_HK
dc.relation.ispartofHong Kong Medical Journalen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsHong Kong Medical Journal. Copyright © Hong Kong Academy of Medicine Press.-
dc.subjectArthroplastyen_HK
dc.subjectHong Kongen_HK
dc.subjectKneeen_HK
dc.subjectKnee jointen_HK
dc.subjectOsteoarthritisen_HK
dc.subjectRegistriesen_HK
dc.subjectReplacementen_HK
dc.subject.meshArthroplasty, Replacement, Knee - trends-
dc.subject.meshOsteoarthritis, Knee - surgery-
dc.subject.meshRetrospective Studies-
dc.subject.meshTime Factors-
dc.subject.meshAged-
dc.titleTotal knee arthroplasty for primary knee osteoarthritis: Changing pattern over the past 10 yearsen_HK
dc.typeArticleen_HK
dc.identifier.emailYan, CH:yanchoi@hku.hken_HK
dc.identifier.emailChiu, KY:pkychiu@hkucc.hku.hken_HK
dc.identifier.authorityYan, CH=rp00303en_HK
dc.identifier.authorityChiu, KY=rp00379en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.pmid21282822-
dc.identifier.scopuseid_2-s2.0-79951470204en_HK
dc.identifier.hkuros191233en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79951470204&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume17en_HK
dc.identifier.issue1en_HK
dc.identifier.spage20en_HK
dc.identifier.epage25en_HK
dc.publisher.placeHong Kongen_HK
dc.identifier.scopusauthoridYan, CH=35764094100en_HK
dc.identifier.scopusauthoridChiu, KY=7202988127en_HK
dc.identifier.scopusauthoridNg, FY=35603861800en_HK

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