Abstract
Background
Locking plates have become a commonly used fixation device in the operative treatment of three- and four-part proximal humerus fractures. Examining function in patients treated nonoperatively and operatively should help determine whether and when surgery is appropriate in these difficult-to-treat fractures.
Questions/purposes
We compared functional scores, ROM, and radiographs in patients with one-part proximal humerus fractures treated nonoperatively to those in patients with displaced three- and four-part proximal humerus fractures treated with open reduction and internal fixation using locking plates.
Patients and Methods
We retrospectively reviewed 142 patients with proximal humerus fractures treated with a standardized treatment algorithm over a 6-year period. Three- and four-part fractures were treated surgically while one-part fractures were treated nonoperatively. Functional scores, ROM, and radiographs were used to evaluate outcomes. American Shoulder and Elbow Surgeons and SF-36 scores were obtained at 12 months. Of the 142 patients, 101 (51 with three- or four-part fractures and 50 with one-part fractures) had a minimum followup of 12 months (average, 19 months; range, 12–64 months).
Results
The fractures united in all patients. At 1 year, the patients with one-part fractures had better SF-36 physical and mental scores and American Shoulder and Elbow Surgeons scores than the three- and four-part fractures. Both groups had similar shoulder ROM. Nine patients treated operatively had complications, four of which were related to screw penetration into the joint.
Conclusions
Patients with three- and four-part fractures should be advised of the likelihood of persistent functional impairment and a relatively higher risk of complications when treated operatively with locked plates.
Level of Evidence
Level III, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.
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Acknowledgments
We thank Robert Meislin, MD, Laith Jazrawi, MD, and Nirmal Tejwani, MD, for allowing us to include their patients in our study.
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Each author certifies that he/she has no commercial associations (eg, consultancies, stock ownership, equity interest, patent/licensing arrangements, etc) that might pose a conflict of interest in connection with the submitted article.
Each author certifies that his/her institution has approved the human protocol for this investigation, that all investigations were conducted in conformity with ethical principles of our institutional ethical review board and that informed consent was obtained from all participants.
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Ong, C., Bechtel, C., Walsh, M. et al. Three- and Four-part Fractures Have Poorer Function Than One-part Proximal Humerus Fractures. Clin Orthop Relat Res 469, 3292–3299 (2011). https://doi.org/10.1007/s11999-011-1864-4
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DOI: https://doi.org/10.1007/s11999-011-1864-4