Bartosz SLOMKA, Witold RONGİES, Janusz SİERDZİNSKİ, Wlodzimierz DOLECKİ, Marta WORWAG, Ewa TRZEPLA

Assessment of postural stability in women with hip osteoarthritis: A caseecontrol study

Objective: The aim of the study was to assessment the impact of hip osteoarthritis on postural stability. Methods: One hundred and twenty-ﬁve randomly selected women 20e85 years old (mean age of 49 ± 24.4 years) were assigned to three groups based on age, health status and activity level. Group 1 (cases) e elderly women with diagnosed hip osteoarthritis, group 2 (control) - women without hip osteoarthritis, and group 3 (control) - healthy young women. Assessment of postural stability were measured using a WIN-POD Pel 38 electronic podometer. Statistica 10 software was used to perform t-test resulting in signiﬁcance level of p < 0.05. Results: Signiﬁcant differences in pedobarographic balance measurements were observed between the study groups with eyes opened or closed (deviation length eyes open: group 1e3 and 2e3p< 0.0001; eyes closed group 1e2p¼ 0.19; 1e3 and 2e3p< 0.0001; deviation area eyes open: group 1-3 and 2e3 p < 0.0001; eyes closed group 1e3 and 2e3p< 0.0001; deviation velocity eyes open: group1-3 and 2e3 p < 0.0001; eyes closed group 1e2p< 0.010,1e3 and 2e3p< 0.0001). The poorestposturalstability was observed in patients with hip osteoarthritis (deviation length eyes open vs eyes closed 180.8/201.7 p ¼ 0.028, deviation area 128.7/145.7 p ¼ 0.771, deviation velocity 5.1/6.1 p < 0.0001), and the best postural stability was observed in young women (deviation length 111.3/137.5 p < 0.0001, deviation area 57/76.9 p ¼ 0.003, deviation velocity 3.4/4.2 p < 0.0001). Conclusion: (1) Osteoarthritic degeneration of the hip joint results in a signiﬁcant disturbance in proprioception. This ﬁnding was reﬂected by the inferior stability parameters collected from subjects with hip osteoarthritis when asked to stand with their eyes closed. These ﬁnding were not observed in the other groups. (2) The disorder of the body stability of people with osteoarthritis may be a relative indication for the implantation of hip arthroplasty.

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