New-type proximal humeral wing-shape anatomical plate for repairing proximal humerus fractures: effectively reduce the incidence of subacromial impingement

doi:10.3969/j.issn.2095-4344.2015.13.021

Abstract

Abstract:

BACKGROUND: The best repair method for proximal humeral fractures remains controversial at present. Although different techniques have been described for proximal humerus fractures, all these techniques have high postoperative complications, such as cut-out or back-out of the screws, nonunion, and subacromial impingement. Given the shortcomings of conventional plate fixation system, we had designed a new type of proximal humeral wing-shape anatomical plate for the repair of proximal humeral fractures.
OBJECTIVE: To evaluate clinical outcomes and complications of proximal humeral wing-shape anatomical plate fixation for proximal humerus fractures.
METHODS: A total of 60 patients with proximal humerus fractures who underwent proximal humeral wing-shape anatomical plate fixation from September 2012 to September 2013 were retrospectively analyzed. According to
Neer classification system, 24, 31 and 5 patients had 2-part, 3-part, and 4-part fractures, respectively. Functional evaluation of the shoulder was done using Constant-Murley score and Visual Analogue Scale was utilized for assessing the degree of shoulder pain.
RESULTS AND CONCLUSION: All 60 patients were followed up for 12-24 months after fixation, and obtained bone healing. The healing time was 15.3±2.7 weeks (range 12-20 weeks). At the final follow-up, the Constant-Murley score was 81.5±14.6 (range 45-98). The mean Visual Analogue Scale score was 0.9 ± 0.9 points (range 0-7 points). During the follow-up, the overall rate of complications was 18% in 11 cases of 60 cases, including intraarticular screw penetration in 3 patients (5%), back-out of the screws in 1 patient (2%), varus malunion in 5 (8%) patients (containing 2 cases combined with screw penetration), humeral head necrosis in 2 patients (3%), subacromial impingement in 1 patient (2%) and superficial infection of incision in 1 patient (2%). No cases of avascular necrosis or hardware failure were noted. Above data suggested that self-made new-type proximal humeral wing-shape anatomical plate fixation for repairing proximal humerus fractures can obtain satisfactory outcomes, effectively reduce the incidence of postoperative subacromial impingement, is helpful to the recovery of shoulder function, and deserves to be further used.

中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程

全文链接：

Key words: Humeral Fractures, Fracture Fixation, Internal, Internal Fixators, Follow-Up Studies

CLC Number:

R318

Lu Ya-jun. New-type proximal humeral wing-shape anatomical plate for repairing proximal humerus fractures: effectively reduce the incidence of subacromial impingement[J]. Chinese Journal of Tissue Engineering Research, 2015, 19(13): 2081-2085.

Figures/Tables 2

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