Zimmer Natural Nails in the Treatment of Unstable Intertrochanteric Fractures: A Longitudinal StudyCorrespondence Address :
C Yashavanth Kumar,
No. 527, 11th Cross, 5th Main, HIG Colony, RMV II Stage, Bangalore, Karnataka, India.
Introduction: Cephalomedullary nails are preferred over intramedullary nails for internal fixation of unstable intertrochanteric fractures; however, they are associated with complications as they do not match the anatomy of the proximal femur to a great extent.
Aim: To investigate functional and radiological results of Zimmer natural nails in the management of unstable intertrochanteric fractures.
Materials and Methods: A longitudinal prospective study of 99 patients with unstable intertrochanteric fractures was carried out. All patients underwent closed reduction and internal fixation with 180 mm short Zimmer natural nails. Follow-up visits were scheduled for six weeks, three months, and six months for radiological healing and mobility measurements using Radiographic Union Score for Hip (RUSH) and Parker scores, respectively. Statistical analysis was performed using Chi-square and Analysis of Variance (ANOVA).
Results: Mean age of patients was 69.77±11.47 years with a male to female ratio of 1:0.98. A majority of patients had comorbidities like diabetes mellitus and hypertension. Average duration of surgery was 58.38 minutes with no statistically significant difference among the different categories of unstable intertrochanteric fractures. Fixation of fractures with Zimmer natural nails increased Parker score and RUSH score consistently with each follow-up visit (p=0.001). There were no postoperative complications in 93.94% cases.
Conclusion: This study emphasised good functional and radiological results of Zimmer natural nails in the treatment of unstable intertrochanteric fractures.
Cephalomedullary nails, Hip fractures, Intramedullary fracture fixation
Date of Submission: Nov 13, 2020
Date of Peer Review: Dec 30, 2020
Date of Acceptance: Apr 30, 2021
Date of Publishing: May 01, 2021
• Financial or Other Competing Interests: None
• Was Ethics Committee Approval obtained for this study? Yes
• Was informed consent obtained from the subjects involved in the study? Yes
• For any images presented appropriate consent has been obtained from the subjects. Yes
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