TR
EN
Femoral neck shortening after internal fixation
Abstract
Objective: The aim of this study was to assess the factors affecting femoral neck shortening after internal fixation of femoral neck fractures.
Methods: Eighty-six patients with femoral neck fractures were treated using three parallel cannulated screws between May 2004 and January 2011. The shortening of the femoral neck in the horizontal (X), vertical (Y), and along the resultant along the (Z) vector (X→, Y→, Z→) was measured on anteroposterior radiographs corrected by screw diameter and analyzed using TraumaCad software. Age, gender, Garden classification, Garden’s alignment index, Pauwels angle, Singh index, body mass index and weight-bearing time were also analyzed.
Results: Follow-up duration was 8 to 36 months. Significant femoral neck shortening of the abductor lever arm (greater than 5 mm) was present in 33 of 86 (38.4%) patients. Average Harris score
(HSS) was 90.05±7.04 (range: 71 to 100). The 5 predictors for shortening greater than 5 mm in the multivariate logistic regression model were age, Singh index, Pauwels classification, Garden’s alignment index and body mass index.
Conclusion: Femoral neck shortening associated with three parallel cannulated screws for fixation of femoral neck fractures is a common phenomenon. Femoral neck shortening after internal fixation is affected by multiple cofactors.
Methods: Eighty-six patients with femoral neck fractures were treated using three parallel cannulated screws between May 2004 and January 2011. The shortening of the femoral neck in the horizontal (X), vertical (Y), and along the resultant along the (Z) vector (X→, Y→, Z→) was measured on anteroposterior radiographs corrected by screw diameter and analyzed using TraumaCad software. Age, gender, Garden classification, Garden’s alignment index, Pauwels angle, Singh index, body mass index and weight-bearing time were also analyzed.
Results: Follow-up duration was 8 to 36 months. Significant femoral neck shortening of the abductor lever arm (greater than 5 mm) was present in 33 of 86 (38.4%) patients. Average Harris score
(HSS) was 90.05±7.04 (range: 71 to 100). The 5 predictors for shortening greater than 5 mm in the multivariate logistic regression model were age, Singh index, Pauwels classification, Garden’s alignment index and body mass index.
Conclusion: Femoral neck shortening associated with three parallel cannulated screws for fixation of femoral neck fractures is a common phenomenon. Femoral neck shortening after internal fixation is affected by multiple cofactors.
Keywords
References
- Berkes MB, Little MT, Lazaro LE, Cymerman RM, Helfet DL, Lorich DG. Catastrophic failure after open reduction internal fixation of femoral neck fractures with a novel locking plate implant. J Orthop Trauma 2012;26:e170-6. Bhandari M, Devereaux PJ, Swiontkowski MF, Tornetta P 3rd, Obremskey W, Koval KJ, et al. Internal fixation compared with arthroplasty for displaced fractures of the femoral neck. A meta-analysis. J Bone Joint Surg Am 2003;85-A: 1673
Details
Primary Language
English
Subjects
Health Care Administration
Journal Section
Research Article
Publication Date
February 7, 2014
Submission Date
March 7, 2014
Acceptance Date
-
Published in Issue
Year 2013 Volume: 47 Number: 6
APA
Liu, Y., Aı, Z. S., Shao, J., & Yang, T. (2014). Femoral neck shortening after internal fixation. Acta Orthopaedica et Traumatologica Turcica, 47(6), 400-404. https://izlik.org/JA88ME97PJ
AMA
1.Liu Y, Aı ZS, Shao J, Yang T. Femoral neck shortening after internal fixation. Acta Orthopaedica et Traumatologica Turcica. 2014;47(6):400-404. https://izlik.org/JA88ME97PJ
Chicago
Liu, Yue, Zi Sheng Aı, Jin Shao, and Tieyi Yang. 2014. “Femoral Neck Shortening After Internal Fixation”. Acta Orthopaedica et Traumatologica Turcica 47 (6): 400-404. https://izlik.org/JA88ME97PJ.
EndNote
Liu Y, Aı ZS, Shao J, Yang T (February 1, 2014) Femoral neck shortening after internal fixation. Acta Orthopaedica et Traumatologica Turcica 47 6 400–404.
IEEE
[1]Y. Liu, Z. S. Aı, J. Shao, and T. Yang, “Femoral neck shortening after internal fixation”, Acta Orthopaedica et Traumatologica Turcica, vol. 47, no. 6, pp. 400–404, Feb. 2014, [Online]. Available: https://izlik.org/JA88ME97PJ
ISNAD
Liu, Yue - Aı, Zi Sheng - Shao, Jin - Yang, Tieyi. “Femoral Neck Shortening After Internal Fixation”. Acta Orthopaedica et Traumatologica Turcica 47/6 (February 1, 2014): 400-404. https://izlik.org/JA88ME97PJ.
JAMA
1.Liu Y, Aı ZS, Shao J, Yang T. Femoral neck shortening after internal fixation. Acta Orthopaedica et Traumatologica Turcica. 2014;47:400–404.
MLA
Liu, Yue, et al. “Femoral Neck Shortening After Internal Fixation”. Acta Orthopaedica et Traumatologica Turcica, vol. 47, no. 6, Feb. 2014, pp. 400-4, https://izlik.org/JA88ME97PJ.
Vancouver
1.Yue Liu, Zi Sheng Aı, Jin Shao, Tieyi Yang. Femoral neck shortening after internal fixation. Acta Orthopaedica et Traumatologica Turcica [Internet]. 2014 Feb. 1;47(6):400-4. Available from: https://izlik.org/JA88ME97PJ