Four-part fracture dislocations of the proximal humerus in young adults: Results of fixation
ABSTRACT Four-part fracture dislocations of the proximal humerus occurring in young age are extremely difficult fractures with a high incidence of complications. The risk of avascular necrosis is high; hence, prosthetic replacement is the treatment of choice in older patients with these complex fractures; on the other hand, the longevity of the prosthesis is the main concern in young age. Thus, every effort should be made to fix these fractures in the young. The purpose of this study is to evaluate the results of fixation in a series of young patients with four-part fracture dislocations; to support the trend to fix these fractures; and reserve prosthetic replacement to older patients.
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ABSTRACT: Long term outcome of the treatment of displaced complex fractures of humeral head is rare in the literature especially in greater cohorts. Main purpose of our study was the assessment of long term results of intramedullary nailing of 3-4 part fractures. 137 patients with 137 three or four-part fractures of the humeral head treated by intramedullary nailing were reassessed after an average follow-up time of 57 (27-93) months. The whole cohort consisted of 85 three-part fractures, 38 four-part fractures and 14 fracture-dislocations. Radiographic and clinical outcome - absolute Constant score (CS(abs)) and relative Constant score (compared to the contralateral side - CS(rel)) were evaluated. The rate of complications was recorded. Analysis of the influence of quality of achieved reduction on final functional result and on the development of complications was performed. 125 fractures healed uneventfully. Mean long term CS(rel) was 81% of the unaffected side. Mean CS(rel) was 85% in 3-part fractures, 73% in four-part fractures, 80% in three-part fracture-dislocations and 70% in four-part fracture-dislocations. 96 (70%) patients achieved excellent or good results (CS(rel) higher than 80%), 17 (12.4%) satisfactory results and 24 (17.5%) poor results (CS(rel) less than 60%). No significant difference was observed in functional results between different age groups. No incidence of non-union was observed, 4 losses of reduction were encountered. We observed 17 cases of complete humeral head necrosis, 14 of them in the group of 4-part fractures. Reduction quality strongly influenced functional result and development of head necrosis. In the group of excellent reduction mean CS(rel) was 88% and the rate of necrosis was 2%. Moderate reduction quality deteriorated CS(rel) to 70% and head necrosis rate rose up to 28%. If reduction was poor, mean CS(rel) was 52% and the rate of complete necrosis rose to 60%. Long term results confirmed nailing as appropriate treatment strategy for all types of humeral head fractures with limitation of excellent reduction in every age group. Moderate or even poor reduction significantly deteriorates functional results and increases rate of complete necrosis of the humeral head. If good reduction cannot be achieved, treatment strategy should be changed.Injury 11/2013; 45. DOI:10.1016/j.injury.2013.10.038 · 2.46 Impact Factor
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ABSTRACT: To propose a new system for classifying proximal humeral neck fractures, and to evaluate intra- and interobserver agreement using the Neer system that is the most commonly used in the area and the Arbeit Gemeinschaft für Osteosynthesefragen system created by an European group, and a new classification system proposed by the authors of this study. A total of 56 patients with proximal humeral fractures were selected, and submitted to digitized simple radiography in antero-posterior shoulder and scapular profile. Radiographs were analyzed by three observers at time one, and then three and six weeks later. The kappa coefficient modified by Fleiss was used for the analysis. The mean intra-observer Kappa agreement index (k=0.687) of the new classification, was higher than both the Neer classification (k=0.362) and the Arbeit Gemeinschaft für Osteosynthesefragen (k=0.46). The mean interobserver Kappa agreement index (0.446) of the new classification, also had better results than both the Neer classification (k=0.063) and the Arbeit Gemeinschaft für Osteosynthesefragen (k=0.028). the new classification considering bone compression had higher results for intra- and interobserver compared to the Neer system, and the Arbeit Gemeinschaft für Osteosynthesefragen system.12/2012; 10(4):473-9. DOI:10.1590/S1679-45082012000400014
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ABSTRACT: To present the experience in a single institution of the management of 82 consecutive fractures and fracture-dislocations of the proximal humerus treated with the Proximal Humeral Internal Locking System (Philos®) plate.Injury 11/2014; DOI:10.1016/j.injury.2014.10.022 · 2.46 Impact Factor