Anterior translation of humeral headin gleno humeral joint: Comparison between limb dominance and gender using ultrasono graphy

• Main Authors: Joseph L., Hussain R., Naicker A., Htwe O., Pirunsan U., Paungmali A.
• Format: Article
• Published: Polskie Towarzystwo Lekarskie, Oddzial Regionalny w Olsztynie, Okregowa Warminsko-Mazurska Izba Lekarska 2015
• Subjects: Medicine (all)
• Online Access: http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84900470634&origin=inward; http://cmuir.cmu.ac.th/handle/6653943832/38120
• Institution: Chiang Mai University

Introduction: The anteriortranslationofhumeralhead(ATHH) inglenoidcavityisoneof the commonlyevaluatedmeasurestodiagnoseglenohumeraljoint(GHJ)disorders.Itisnot clear thatlimbdominanceandgenderaffecttheATHHinglenoidcavity.Anunderstanding on sucheffectsisimportantforclinicianstoevaluateshoulderdisorders. Aim: This studycomparestheATHHbetweengenderandlimbdominanceamonghealthy individuals. Material andmethods: A totalof20participants(12femalesand8males) withmean±SD of 34±5.4 yearsofageparticipatedinthisstudy. Alloftheparticipantsreportednoshoulder pain, shoulderinjuryoverthepasttwoyears, andhadfullrangeofshouldermovementsat the timeoftesting. Participantswithahistoryofshouldersurgeryandthoseinvolvedin any formsofoverheadsportswereexcluded.Areal-timeultrasonographywasusedto measure theATHHinGHJduringaforceof80NappliedtoGHJ.Independentsample t-test and pairedsample t-test wereusedtoanalyzethedifferencesinATHHbetweenlimb dominance andgender. Results anddiscussion: The mean±SD ofATHHwas0.16±0.08 cmand0.13±0.08 cmin dominant andnon-dominantshoulder,respectively. Therewasnostatisticallysignificant difference inATHH(t19=1.52, p=.14,95%CI -0.01to0.07)betweendominantandnon- dominant shoulders.Therewasnosignificant differenceinATHHbetweenmaleandfemale participants(t18=1.90, p=.97,95%CI -0.08to0.84). © 2013 Warmin'sko-Mazurska IzbaLekarskawOlsztynie.