Displaced proximal humeral fractures: an Indian experience with locking plates
The treatment of displaced proximal humerus fractures, especially in elderly, remains controversial. The objective of this study was to evaluate functional outcome of locking plate used for fixation of these fractures after open reduction.
We also attempted to evaluate the complications and predictors of loss of fixation for such an implant.
Methods: Over two and a half years, 56 patients with an acute proximal humerus fracture were managed with locking plate osteosynthesis. 47 of these patients who completed a minimum follow up of 1 year were evaluated usingConstant score calculation.
Statistical analysis was done using SPSS 16 and a p value of less than 0.005 was taken as statistically significant.
Results: The average follow up period was around 21.5 months. Outcomes were excellent in 17%, good in 38.5%, moderate in 34 % while poor in 10.5%.
The Constant score was poorer for AO-OTA type 3 fractures as compared to other types. The scores were also inferior for older patients (>65 years old).
Complications included screw perforation of head, AVN, subacromial impingement, loss of fixation, axillary nerve palsy and infection. A varus malalignment was found to be a strong predictor of loss of fixation.
Conclusion: Locking plate osteosynthesis leads to satisfactory functional outcomes in all the patients.
Results are better than non locking plates in osteoporotic fractures of the elderly. However the surgery has steep learning curve and various complications could be associated with its use.
Nevertheless we believe that a strict adherence to the principles of locking plate use can ensure good result in such challenging fractures.
Author: Sameer AggarwalKamal BaliMandeep DhillonVishal KumarAditya Mootha
Credits/Source: Journal of Orthopaedic Surgery and Research 2010, 5:60
Published on: 2010-08-23
Copyright by the authors listed above - made available via BioMedCentral (Open Access). Please
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