Derek T Cawley1, Shane J Guerin2, James Walsh3, Andrew Simpkin4, Eric L Masterson5. 1. Department of Orthopaedic Surgery, Merlin Park Hospital, Galway, Republic of Ireland. Electronic address: derekcawley@hotmail.com. 2. Department of Trauma & Orthopaedic Surgery, Cork University Hospital, Cork, Republic of Ireland. 3. Department of Trauma & Orthopaedic Surgery, Beaumont Hospital, Dublin, Republic of Ireland. 4. Biostatistics, HRB Clinical Research Facility, National University of Ireland, Galway, Republic of Ireland. 5. Department of Orthopaedic Surgery, St. Nessan's Hospital, Croom, Limerick, Republic of Ireland.
Abstract
OBJECTIVES: Hip arthroplasty registries, encompassing all-cause end-stage hip degeneration, have shown that slightly more right hip replacements are performed than left. Given that greater than 85% of individuals are right-handed, we sought to investigate the association between side of hand dominance and side of hip osteoarthritis. METHODS: This Level III observational study evaluated exclusively end-stage osteoarthritis of the hip, using 3 independent centres totalling 386 consecutive arthroplasty patients. Logistic regression was used as a statistical model. RESULTS: In total, 322 patients with hip osteoarthritis were included in the final analysis, including 146 (45.5%) women and 176 (54.5%) men, with a mean age of 68.1 years (SD = 9.5 years). There were 133 (41.2%) right, 73 (22.6%) left, and 116 (35.9%) bilateral hips where the contralateral side had been previously replaced. The proportion of individuals requiring unilateral hip arthroplasty on their dominant side was 67.4%. CONCLUSIONS: In the development of hip osteoarthritis, one is significantly more likely to require hip arthroplasty on their dominant side than in the contralateral hip. Assessment of hand dominance identifies cerebral laterality as a contributing factor in predisposing one's dominant side to hip osteoarthritis.
OBJECTIVES:Hip arthroplasty registries, encompassing all-cause end-stage hip degeneration, have shown that slightly more right hip replacements are performed than left. Given that greater than 85% of individuals are right-handed, we sought to investigate the association between side of hand dominance and side of hip osteoarthritis. METHODS: This Level III observational study evaluated exclusively end-stage osteoarthritis of the hip, using 3 independent centres totalling 386 consecutive arthroplasty patients. Logistic regression was used as a statistical model. RESULTS: In total, 322 patients with hip osteoarthritis were included in the final analysis, including 146 (45.5%) women and 176 (54.5%) men, with a mean age of 68.1 years (SD = 9.5 years). There were 133 (41.2%) right, 73 (22.6%) left, and 116 (35.9%) bilateral hips where the contralateral side had been previously replaced. The proportion of individuals requiring unilateral hip arthroplasty on their dominant side was 67.4%. CONCLUSIONS: In the development of hip osteoarthritis, one is significantly more likely to require hip arthroplasty on their dominant side than in the contralateral hip. Assessment of hand dominance identifies cerebral laterality as a contributing factor in predisposing one's dominant side to hip osteoarthritis.
Authors: Vasco V Mascarenhas; Paulo Rego; Pedro Dantas; Miguel Castro; Lennart Jans; Rui M Marques; Nélia Gouveia; Francisco Soldado; Olufemi R Ayeni; José G Consciência Journal: Eur Radiol Date: 2017-11-06 Impact factor: 5.315