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Vilmos Vécsei

Publications and source records attributed to Vilmos Vécsei.

3 recordsLinked to original sources
PubMed2002

[Stabilization of proximal humeral fractures with the intramedullary dynamic titanium helix wire].

The implant Helix-Wire is a treatment device that is used since 1997. It provides minimally invasive stabilization of subcapital humeral fractures. The implant is inserted through a small lateral entrance and a cortical hole drilled into the intramedullary space of the proximal humeral shaft and drilled into the humeral head for fracture stabilization. After careful preoperative planning and successful repositioning of the fracture the technique can be performed without difficulty. A review of 35 patients with subcapital humeral fractures, who were operated using the titanium wire helix between 1998 and 2000, was carried out. Clinical and radiological results were documented. After an average time of 11.5 months 13 patients were examined according to the Constant Score: 5 good or excellent, 4 fair and 4 bad results were achieved. We conclude that this implant provides sufficient stabilization of subcapital humeral fractures classified as AO 11 A2, 11 A3.1, 11A3.2, 11B1.1, 11B1.2. It does not offer an advantage for the treatment of unstable fractures with multiple fragments or cancellous bone deficiency (11 A3.3, 11 B2.2, 11 B2.3).

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PubMed2002

Influence of controlled reaming on fat intravasation after femoral osteotomy in sheep.

This study assessed the influence of driving speed and revolution rate per minute of two reamers on femoral intramedullary pressure increases and fat intravasation. The AO and Howmedica reamers were tested in four groups with different combinations of driving speed and revolution rate per minute in both femurs in a sheep model. The 24 animals were exposed to hemorrhagic shock after midshaft osteotomy and were resuscitated before reaming of both femoral shafts. Controlled reaming was performed at 15 and 50 mm/second driving speed with 150 and 450 revolutions per minute. Fat intravasation and intramedullary pressure were measured by transesophageal echocardiography, Gurd test, and a piezoelectric gauge, respectively. Low driving speed and high revolutions per minute with the smaller cored reamer led to lower intramedullary pressure changes. The same reaming parameters led to greater pulmonary stress during surgery of the second side. Reaming with a smaller cored reamer and modified reaming parameters leads to a lower increase in intramedullary pressure and reduces the amount of fat intravasation. Primary reamed intramedullary nailing should be done after resuscitation at a low driving speed and high revolutions per minute with a smaller cored reamer to minimize the risk of pulmonary dysfunction.

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