کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4051630 1265000 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Operative treatment of greater tuberosity fractures of the humerus – A biomechanical analysis
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
پیش نمایش صفحه اول مقاله
Operative treatment of greater tuberosity fractures of the humerus – A biomechanical analysis
چکیده انگلیسی

BackgroundFractures of the greater tuberosity of the humerus present with increasing frequency. However, no biomechanical data about the optimal fixation technique of greater tuberosity fractures is available. This biomechanical cadaver study compares the stability of three standard fixation techniques used for the treatment of greater tuberosity fractures of the proximal humerus.MethodsIn 21 fresh frozen proximal humeri, standardized fractures of the greater tuberosity were created. The specimens were randomly assigned to one of three operation techniques: wire tension banding, two cancellous screws and transosseous sutures. These constructs were mechanically tested by applying an increasing force to the supraspinatus tendon. Load to 5 mm displacement (load to 5 mm yield point) and load to failure (maximum stretch strength) were measured in Newton (N).FindingsLoad to 5 mm yield point values showed no significant differences between tension banding (498 N, SD 153) and two cancellous screws (400 N, SD 174) (P > 0.01). Both techniques showed significantly higher values than transosseous sutures (185 N, SD 132) (P < 0.01). Load to failure values were significantly higher for tension banding (1054 N, SD 125) than screws (842 N, SD 140) and sutures (480 N SD 101) (P < 0.01). The difference between screws and sutures was also significant (P < 0.01).InterpretationTension banding and two cancellous screws provided the strongest fixation for isolated fractures of the greater tuberosity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Clinical Biomechanics - Volume 22, Issue 6, July 2007, Pages 652–657
نویسندگان
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