INTRODUCTION: Total hip replacement (THR) is successful and performed commonly. Component placement is a determinant of outcome. Influence of surgeon handedness on component placement has not been considered previously. This study was a radiographic assessment of component positioning with respect to handedness. Early data from 160 patients are reported. METHODS: Overall, 160 primary THRs for osteoarthritis were included. Equal numbers of left and right THRs were performed by four surgeons, two right-handed and two left-handed. Postoperative radiography was assessed for THR component position by measurement of leg length inequality, acetabular inclination and centre of rotation. Surgeons' handedness was assessed using the Edinburgh inventory. RESULTS: For leg length inequality, no significant interaction was seen between hip side and surgeon handedness. Acetabular inclination angles showed a statistically significant difference, however, depending on hand dominance, with higher inclination angles recorded when operating on the dominant side. There was a trend towards greater medialisation of the centre of rotation on the non-dominant side although this did not reach statistical significance. CONCLUSIONS: Surgeon handedness appears to influence acetabular component position during THR but it is one factor of many that interact to achieve a successful outcome.
INTRODUCTION: Total hip replacement (THR) is successful and performed commonly. Component placement is a determinant of outcome. Influence of surgeon handedness on component placement has not been considered previously. This study was a radiographic assessment of component positioning with respect to handedness. Early data from 160 patients are reported. METHODS: Overall, 160 primary THRs for osteoarthritis were included. Equal numbers of left and right THRs were performed by four surgeons, two right-handed and two left-handed. Postoperative radiography was assessed for THR component position by measurement of leg length inequality, acetabular inclination and centre of rotation. Surgeons' handedness was assessed using the Edinburgh inventory. RESULTS: For leg length inequality, no significant interaction was seen between hip side and surgeon handedness. Acetabular inclination angles showed a statistically significant difference, however, depending on hand dominance, with higher inclination angles recorded when operating on the dominant side. There was a trend towards greater medialisation of the centre of rotation on the non-dominant side although this did not reach statistical significance. CONCLUSIONS: Surgeon handedness appears to influence acetabular component position during THR but it is one factor of many that interact to achieve a successful outcome.
Authors: Miki Dalmau-Pastor; F Malagelada; G M M J Kerkhoffs; J Karlsson; M C Manzanares; J Vega Journal: Knee Surg Sports Traumatol Arthrosc Date: 2018-08-29 Impact factor: 4.342
Authors: Daniel P Berthold; Lukas N Muench; Cameron Kia; Connor G Ziegler; Samuel J Laurencin; Daniel Witmer; Dale N Reed; Mark P Cote; Robert A Arciero; Augustus D Mazzocca Journal: Orthop J Sports Med Date: 2020-07-08