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*Corresponding author:Qing Jiang, MD, PhD. Department of Sports Medicine and Adult Reconstructive Surgery,Drum Tower Hospital, School of Medicine, Nanjing University, No. 321 Zhongshan Road, Nanjing, China
Received: April 19, 2018; Published: April 27, 2018
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Background: Leg length discrepancy after total hip arthroplasty (THA) is one of the most common complications. Patients with obvious limb-length change often have functional disability and an accompanying dissatisfation. Purpose to detect the association between gender and the Leg length discrepancy (LLD) after THA
Methods: We retrospective reviewed 158 consecutive patients who underwent primary THA surgery at our institution from May 2016 to July 2017. LLD was measured for all cases on pevilc AP radiograph. Then, we compared LLD between the male and female groups.
Results: The incidence of LLD in our study was 94.9% (150/158) with a mean discrepancy of 7.5mm(range from 0 to 46.3mm). The abduction angle, anteversion angle, percentage of cup in safe zone were not statistical significant difference between the two groups. The LLD was significantly more often in the range of -10mm to 10mm in the female than male groups (84.1% versus 64.7%, p=0.019), however, the association was not found between the other three range classifications and gender.
Conclusion: Male gender is an independent risk factor for marked LLD. Identification of these patients allows the treating surgeon to pay more attention on the intraoperative osteotomy. Further, before surgery, we should emphasize the high probility of LLD after THA, especially to male patients.
Kewords: Leg Length Discrepancy(LLD); Total Hip Arthroplasty (THA); Gender; Prothesis Position
Abbreviation: LLD: Leg Length Discrepancy; THA: Total Hip Arthroplasty; LA: Lateral Approach; DAA: Direct Anterior Approach; OCM: Minimally Invasive Antero Lateral Approach;SD: Standard Deviation; OA: Osteoarthritis; RA: Rheumatoid Arthritis; FNF: Femoral Neck Fracture; FHN: Femoral Head Necrosis; DDH: Development Displasia Hip
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