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Salvage of failed dynamic hip screw fixation of intertrochanteric fractures

Authors Taheriazam A, Saeidinia A

Received 10 May 2019

Accepted for publication 23 July 2019

Published 22 August 2019 Volume 2019:11 Pages 93—98

DOI https://doi.org/10.2147/ORR.S215240

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Melinda Thomas

Peer reviewer comments 3

Editor who approved publication: Professor Clark Hung


Afshin Taheriazam,1 Amin Saeidinia2,3

1Department of Orthopedics Surgery, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran; 2Faculty of Medicine, Guilan University of Medical Sciences, Rasht, Iran; 3Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

Correspondence: Afshin Taheriazam
Department of Orthopedics Surgery, Tehran Medical Sciences Branch, Islamic Azad University, Khaghani Street, Shariati Avenue, Tehran, Iran
Tel +98 912 111 3486
Email afshin.taheriazam@yahoo.com

Amin Saeidinia
Medical Faculty, Mashhad University of Medical Sciences, Azadi Square, Mashhad, Iran
Tel +98 911 945 1607
Email amin.saeidynia@gmail.com

Background and aim: Failure of intertrochanteric fracture fixation can occur in patients with poor bone quality, extreme osteoporosis, or unstable fracture arrangement. Although hip replacement is a commonly successful process, it includes technical problems, such as implant removal, bone loss, low bone quality, nonunion of trochanter, and difficult surgical exposure. The goal of this study was to restore total hip replacement for failed intertrochanteric fractures to assess the outcomes.
Methods: During April 2009 to October 2015, 203 patients (203 hips) underwent total hip arthroplasty through the direct lateral approach, as salvage of failed intertrochanteric fracture management by dynamic hip screw (DHS). The restoration process was done by a direct lateral approach (Hardinge) in all hips. The operation details, such as duration, blood transfusion volume, blood loss, and duration of hospital stay, were recorded. Modified Harris hip score (MHHS) was applied for assessment of clinical outcome before and after the operation, and during the follow-up.
Results: Overall, 112 patients were male (55.17%) and 91 patients (44.8%) were female and the mean of age was 72.58±10.60 years old. Average operation time was 93.96±10.72 minutes. The mean blood loss volume during the operation was 355.86±84.11 mL. The mean preoperative MHHS score was 39.55±6.74 (range: 30–50). The MHHS score improved to 90.55±2.24, 92.34±1.26, and 94.34±1.85 during the first, second, and final follow-up, respectively (P<0.0001). Infection was found in only two patients, who had undergone one stage revision and linear of the cup was exchanged. Total rate of complications during the follow-up was 4.92%.
Conclusion: The current research was a large population study and indicated that sufficient functional outcome could be obtained by total hip replacement in geriatrics with failed intertrochanteric fractures. Therefore, well-performed hip replacement could be a suitable choice for restoring failed DHS in unsuccessfully managed intertrochanteric fractures in the elderly.

Keywords: failed intertrochanteric fracture, total hip arthroplasty, trochanteric nonunion, dynamic hip screw


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