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Open reduction and locking plate fixation of displaced proximal humerus fractures

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Abstract

Background: Treatment of proximal humerus fractures is controversial and various operative modalities have been tried in the literature. The aim of the present study was to evaluate functional outcome and complication rate after open reduction and internal fixation of displaced proximal humerus fractures by proximal humerus locking plate.

Materials and Methods: 52 patients with displaced proximal humerus fractures treated with proximal humerus locking plate between May 2008 and October 2010 were included in the study. Fractures were classified according to Neer’s classification into displaced 2-part, 3-part, and 4-part fractures. Patients were followed for a minimum period of 1 year. 11 patients had less than 1 year of followup and were not considered in the evaluation of final results. Forty one patients were considered for final evaluation. Functional evaluation was done according to the Constant-Murley scoring system. Constant score was compared between 2-part, 3-part, and 4-part fractures at final up and also between young (≤60 yrs) and old (>60 yrs).

Results: 11 patients had 2-part fractures, 22 patients had 3-part fractures, and 19 patients had 4-part fractures. The mean followup period was 15.21 ±2.59 months. 65.8% (n = 27) patients had good to excellent result, 19.5% (n = 8) had fair, and 14.7% (n = 6) had poor result. Constant scores for 2-part (79.83 ± 6.95) and 3-part fractures (74.22 ± 12.53) were significantly superior to those of 4-part fractures (61.09 ± 14.29) (P value = 0.002 and 0.018, respectively). Difference between 2-part and 3-part fractures was not significant (P value = 0.623). There was no significant difference between younger (≤60) and older patients (>60). Complications encountered in this series were varus malreduction in 17% (n = 7), screw perforation in 10% (n = 4), plate impingement in 12% (n = 5), infection in 2% (n = 1), and nonunion in 2% (n = 1) of cases.

Conclusion: Proximal humerus locking plate gives reliable fixation for 2-part and 3-part fractures. Its use in more complicated fracture patterns of 4-part fractures is associated with poor clinical outcome.

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Authors and Affiliations

  1. Department of Orthopaedics, MRA Medical College, Ambedkar Nagar, Uttar Pradesh, India

    Javed Ahmad

  2. Department of Orthopaedics, GSVM Medical College, L26, Medical College Campus, Kanpur, Uttar Pradesh, India

    Chandan Kumar,  Anil Kumar Gupta & Rohit Nath

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  1. Chandan Kumar
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  2. Anil Kumar Gupta
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  4. Javed Ahmad
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Correspondence to Anil Kumar Gupta.

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Kumar, C., Gupta, A.K., Nath, R. et al. Open reduction and locking plate fixation of displaced proximal humerus fractures. IJOO 47, 156–160 (2013). https://doi.org/10.4103/0019-5413.108903

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