Archives of orthopaedic and trauma surgery
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Arch Orthop Trauma Surg · Jan 2012
Comparative Study Clinical TrialHook plate fixation for acromioclavicular joint separations restores coracoclavicular distance more accurately than PDS augmentation, however presents with a high rate of acromial osteolysis.
Hook plate fixation of acromioclavicular (AC) joint separations carries the disadvantage of compulsory implant removal, occasional implant fatigue and secondary loss of reduction. This study compares the clinical and radiological outcome of a new polyaxial angular stable hook plate (HP) with absorbable polydioxansulfate (PDS) sling. ⋯ Hook plate fixation employing a polyaxial angular stable plate finally restores the coracoclavicular distance more accurately than augmentation with a PDS sling. Although in HP group no implant failure occurred, major disadvantages are initial overcorrection and acromial osteolysis. Both have no influence on final functional results.
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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.
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Arch Orthop Trauma Surg · Jan 2012
Comparative Study Clinical TrialCushion bearings versus large diameter head metal-on-metal bearings in total hip arthroplasty: a short-term metal ion study.
Metal-on-metal total hip arthroplasty (MOM THA) has the advantage of replicating the femoral head size, but the postoperative elevation of serum metal ion levels is a cause for concern. Metal-on-polycarbonate-urethane is a new cushion bearing featuring a large diameter metal head coupled with a polycarbonate-urethane liner. ⋯ These findings warrant the continued clinical study of compliant bearing options.
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Arch Orthop Trauma Surg · Jan 2012
Clinical TrialDisplaced femoral neck fractures in the young: significance of posterior comminution and raised intracapsular pressure.
Osteosynthesis in fracture neck of femur (NOF) in young is a universally acceptable procedure. Various factors affect the outcome; with AVN (avascular necrosis) and non-union primarily contributing to adverse results in such patients. To identify factors affecting outcome of displaced fracture NOF, a prospective cohort study was carried out in the setting of a tertiary care centre in developing country. ⋯ Prognosis of displaced fracture NOF is significantly associated significant with posterior comminution and intracapsular pressure difference between fractured and normal side.
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Arch Orthop Trauma Surg · Jan 2012
Comparative StudyA novel computer-assisted drill guide template for thoracic pedicle screw placement: a cadaveric study.
The objective of this study was to develop a novel, patient-specific, navigational template for thoracic pedicle screw placement. ⋯ We have developed a novel, patient-specific, navigational template for thoracic pedicle screw placement with good applicability and high accuracy.