Barla M, Egrise F, Zaharia B, Bauer C, Parot J, Mainard D. Prospective assessment of trochanteric fracture managed by intramedullary nailing with controlled and limited blade back-out.
Orthop Traumatol Surg Res 2020;
106:613-619. [PMID:
32249158 DOI:
10.1016/j.otsr.2019.11.028]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 08/26/2019] [Accepted: 11/25/2019] [Indexed: 02/03/2023]
Abstract
INTRODUCTION
The main objective of the present prospective study was to assess mechanical complications associated with an original intramedullary nail with limited and controlled blade back-out in the treatment of trochanteric fracture.
MATERIAL AND METHOD
All patients treated for trochanteric fracture in a single orthopedic/traumatologic surgery department over a 2-year period were included. Minimum follow-up was 6 months. Fracture stability was assessed on the AO criteria. The TFP® intramedullary nail has a monobloc helicoid blade. Its main feature is the controlled and limited blade back-out, optimizing fracture site compression in weight-bearing, without the drawback of excessive back-out. The main endpoint was onset of mechanical complications: cut-out, intra-articular protrusion, non-union, and pain. Baumgaertner's Tip-Apex Distance (TAD), blade centering within the femoral head and fracture reduction were also assessed.
RESULTS
One hundred thirty-eight patients (mean age, 83 years) were operated on, and 118 followed up. There were 9 mechanical complications (7.6%): 4 cut-outs (3.4%), 3 intra-articular protrusions (2.5%), 1 non-union (0.8%) and 1 case of pain (0.8%). TAD length was not associated with complications rate. Poor reduction was significantly associated with more complications (p=0.02), as was blade malpositioning. Mean back-out was 3.3mm, affecting 22 nails (19%). There were no complications in case of back-out, versus a 9.4% rate in absence of back-out, although this difference was not significant (p=0.21). There were no postoperative infections.
CONCLUSION
The TFP® nail is useful for fixation of trochanteric fracture, whether stable or unstable, due to its low rate of mechanical complications compared to the literature.
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