Articles: tibia-surgery.
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Despite persistent continuity of the attenuated posterior cruciate ligament (PCL) in most PCL insufficient knees, few reconstruction techniques that preserve the PCL remnant have been presented. Furthermore, data regarding the clinical outcomes of these approaches are even more limited, and the clinical validity of remnant preservation has not yet been established. ⋯ Techniques combining remnant-preserving transtibial single-bundle PCL reconstruction with posterolateral corner reconstruction resulted in somewhat better activity-related outcomes compared with those of approaches without remnant preservation. However, incorporation of remnant preservation does not appear to provide increased posterior stability or result in clinically superior outcomes versus those of techniques without remnant preservation.
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Randomized Controlled Trial Comparative Study
Biomechanical analysis of four different fixations for the posterolateral shearing tibial plateau fracture.
The posterolateral shearing tibial plateau fracture is uncommon in the literature, however with the increased usage of computer tomography (CT), the incidence of these fractures is no longer as low as previously thought. Few studies have concentrated on this fracture, least of all using a biomechanical model. ⋯ Vertical displacement of the posterolateral fragment was measured using three different strengths of axial loading force, and finally loaded until fixation failure. It was concluded that the posterolateral buttress plate is biomechanically the strongest fixation method for the posterolateral shearing tibial plateau fracture.
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AJR Am J Roentgenol · Feb 2012
Chronologic change in the growth plate after radiofrequency-induced thermal injury: MRI-histologic correlation.
The purposes of this study were to assess chronologic changes in normal growth plate after radiofrequency-induced thermal injury and to evaluate the feasibility of MRI for revealing alteration of the growth plate. ⋯ Radiofrequency-induced thermal injury causes early closure of the physis. MRI can depict the extent of radiofrequency-induced thermal injury and alterations in the physis that lead to early closure.
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Arch Orthop Trauma Surg · Jan 2012
Randomized Controlled TrialReactionary haemorrhage reduction with adrenaline infiltration in proximal tibial osteotomy: a randomized clinical study of safety and efficacy.
In corrective osteotomy, wound closure is undertaken with or without deflation of the tourniquet. Hypoxia from the tourniquet causes vasodilatation associated with reactionary haemorrhage and reduced haemoglobin concentration and possibly increased blood transfusion rate. Reactionary haemorrhage and related transfusion need can be reduced through vasoconstriction from adrenaline infiltration. ⋯ In conclusion, wound infiltration with adrenaline was effective in reducing the extent of reactionary haemorrhage and post-operative drop in haemoglobin concentration. There was no significant difference in the transfusion rates in both groups.