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Orthopaedic Proceedings
Vol. 88-B, Issue SUPP_I | Pages 176 - 176
1 Mar 2006
Frangen T Kaelicke T Dudda M Greif S Martin D Muhr G Arens S
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Introduction: Throughout known medical literature the proximal humeral fracture is mentioned with an approximately 5% contribution to all fractures. The optimal operative strategy regarding proximal humeral fractures is still being discussed controversely. This study was conducted to show implant associated problems and their clinical relevance.

Materials and methods: Of a total 198 patients with proximal humeral fractures 166 patients, 98 females and 68 males at a mean age of 74,7 years were treated operatively from 2000 to 2004 in our clinic with an angle-stabile plate osteosynthesis and underwent a clinical and radiological follow-up. Retrospectively we characterised the fractures by using the most common classification of NEER and assessed the functional results with the CONSTANT score.

Results: The 166 evaluated patients with 8 cases of a type I fracture, 13 patients with type II fracture, 34 patients with type III fracture, 47 cases with type IV fracture, 42 patients with type V fracture and 22 cases with type VI were all operatively treated with an angle-stabile plate osteosynthesis. 142 patients underwent early assisted physical therapy. Of all assessed patients the average CONSTANT score was 79,7 points. Among the 8 patients with type I fracture the average CONSTANT score was 84,4 points, among the 13 patients with type II fracture it reached an average 87,4 points. The average score of the 34 patients with type III fracture was 78,8 points. The more complex fractures, according to NEER’s classification, reached average scores of 71,2 points among the 47 cases with type IV fractures, 69,8 points (42 patients, type V) and 61,6 points (22 patients, type VI). The presence of avascular necrosis of the humeral head in 18 cases resulted in a significantly worse functional outcome and therefore a lower average score of 48,1 points. For 36 patients the follow-up revealed intraarticular dislocation of the proximal locking screws which required operative revision in 15 cases.

Conclusion: Even in the complex proximal humeral fracture one can achieve good clinical results for the patients by using an angle-stabile plate osteosynthesis and therefore establishing a secure and rigid situation for an optimized consecutive physical therapy, especially in the elderly. To prevent from intraarticular screw placement the proximal locking screws should be chosen shorter, if possible, then initially measured.