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KMID : 1036220170200040208
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Clinics in Shoulder and Elbow
2017 Volume.20 No. 4 p.208 ~ p.216
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Clinical and Radiologic Results Comparing the Periarticular Proximal Humerus Locking Plate and Polarus Nail for Displaced Proximal Humerus Fractures
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Min Young-Kyoung
Lee Seung-Jun
Gwak Heui-Chul
Kang Sang-Woo
Suh Kuen-Tak
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Abstract
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Background: This study compared the clinical and radiological outcomes of the single calcar screw plate and Polarus nail techniques for the treatment of the proximal humerus fractures.
Methods: Seventy-two patients diagnosed with displaced proximal humerus fracture were enrolled for the study. Of these, 50 patients underwent the locking plate surgery with a single calcar screw (plate group), whereas 22 patients underwent the Polarus nail surgery (nail group). The plate group was further divided into plate 1 group (with medial support), and plate 2 group (without medial support). The radiological and functional results of both groups were compared to the nail group.
Results: The α angle 1 year after surgery was significantly different between plate 1 and plate 2, and plate 2 and nail groups (p=0.041, p=0.043, respectively). The ratio that does not satisfy the reference value of γ angle was 2.8% in plate 1, 7.1% in plate 2 and 22.7% in nail group (p=0.007); there was a significant difference between plate 1 and nail group, and plate 2 and nail group (p=0.014, p=0.033, respectively).
Conclusions: No significant differences were observed in the clinical results between locking plate and Polarus nail. However, in the plate 2 group and nail group, the rate of failure to maintain reduction during the 1-year period after surgery was statistically and significantly higher than the plate 1 group (level of evidence: level IV, case series, treatment study).
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KEYWORD
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Humeral fractures, Proximal, Locking plate, Intramedullary nail
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