M. Gajdoš - Academia.edu (original) (raw)
Papers by M. Gajdoš
Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca, 2011
The authors present the case of a 16-year-old boy with osteochondroma of the iliac crest which gr... more The authors present the case of a 16-year-old boy with osteochondroma of the iliac crest which gradually resulted in gluteal muscle atrophy, developing curvature of the spine and compression of the external iliac artery. Osteochondroma excision prevented the development of circulatory disorders in the ipsilateral lower extremity, and effective physical therapy enabled the well cooperating patient to restore fully his gluteal muscle strength and normal gait pattern.
Surface Science, 2003
The adsorption of oxygen on the Ag(100) is investigated by means of density functional techniques... more The adsorption of oxygen on the Ag(100) is investigated by means of density functional techniques. Starting from a characterization of the clean silver surfaces oxygen adsorption in several modifications (molecularly, on-surface, sub-surface, Ag 2 O) for varying coverage was studied. Besides structural parameters and adsorption energies also work-function changes, vibrational frequencies and core level energies were calculated for a better characterization of the adsorption structures and an easier comparison to the rich experimental data.
Journal of Physics: Condensed Matter, 2004
We have studied the trends in CO adsorption on close-packed metal surfaces: Co, Ni, Cu from the 3... more We have studied the trends in CO adsorption on close-packed metal surfaces: Co, Ni, Cu from the 3d row, Ru, Rh, Pd, Ag from the 4d row and Ir, Pt, Au from the 5d row using density functional theory. In particular, we were concerned with the trends in the adsorption energy, the geometry, the vibrational properties and other parameters derived from the electronic structure of the substrate. The influence of specific changes in our setup such as choice of the exchange correlation functional, the choice of pseudopotential and size of the basis set, substrate relaxation has been carefully evaluated. We found that while the geometrical and vibrational properties of the adsorbate-substrate complex are calculated with high accuracy, the adsorption energies calculated with the gradient-corrected Perdew-Wang exchange-correlation energies are overestimated. In addition, the calculations tend to favour adsorption sites with higher coordination, resulting in the prediction of wrong adsorption sites for the Rh, Pt and Cu surfaces (hollow instead of top). The revised Perdew-Burke-Erzernhof functional (RPBE) leads to lower (i.e. more realistic) adsorption energies for transition metals, but to wrong results for noble metals-for Ag and Au endothermic adsorption is predicted. The site preference remains the same. We discuss trends in relation to the electronic structure of the substrate across the Periodic Table, summarizing the state-of-the-art of CO adsorption on close-packed metal surfaces.
Journal of Physics: Condensed Matter, 2005
... The calculated atomization energies of the O2, N2, and NO molecules are 6.427/12.789 ... the ... more ... The calculated atomization energies of the O2, N2, and NO molecules are 6.427/12.789 ... the catalyst to reorient into a configuration favouring dissociation or desorption without dissociation. ... interatomic distance between N and O. The reverse process, the associative formation of ...
Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca, 2011
The authors present the case of a 16-year-old boy with osteochondroma of the iliac crest which gr... more The authors present the case of a 16-year-old boy with osteochondroma of the iliac crest which gradually resulted in gluteal muscle atrophy, developing curvature of the spine and compression of the external iliac artery. Osteochondroma excision prevented the development of circulatory disorders in the ipsilateral lower extremity, and effective physical therapy enabled the well cooperating patient to restore fully his gluteal muscle strength and normal gait pattern.
Bratislavské lekárske listy, 2009
Authors evaluated functional outcomes after three different surgical procedures for sarcoma aroun... more Authors evaluated functional outcomes after three different surgical procedures for sarcoma around the knee joint. Sixteen patients with sarcoma were given four to six preoperative courses of chemotherapy. Patients were separated into three groups according to the pattern of tumour excision. The first group underwent the resection of proximal fibula and tibialis anterior muscle resection, the second group underwent resection of distal femur or proximal tibia with total knee replacement, and the third group underwent radical amputation. The mean functional evaluations were 100, 95 and 80%. All marginal resections of proximal fibula resulted in excellent function. No local evidence of tumour recurrence was seen at mean follow-up of 24 months (Tab. 1, Fig. 2, Ref. 7).
![Research paper thumbnail of [First experience with correction of limb-length inequality and angular and rotational deformities of the tibia using the Taylor spatial frame]](https://attachments.academia-assets.com/98277302/thumbnails/1.jpg)
](Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca, 2008
The authors analyse the first results of correction surgery for limb-length inequality and rotati... more The authors analyse the first results of correction surgery for limb-length inequality and rotational and angular deformities of the tibia using the Taylor spatial frame in combination with the Ilizarov external fixator in three patients. The shortening of the tibia, 65 mm on the average (55, 60 and 80 mm, respectively), was due to tibial hemimilia in two patients and traumatic epiphyseolysis of the distal tibia in one patient. Distraction at a rate of 1 mm/day was controlled three-times a day on two contralateral struts. It started on the seventh day after osteotomy in all three patients. On the second post-operative day, rehabilitation started with standing up and walking with crutches. The additional fixation of the heel and foot was removed at 3 months after distraction was terminated so that ankle exercise would be possible. No serious complications were recorded. The average distraction index was 0.91 and the average tibial lengthening was 65 mm. Callus consolidation was achie...
Bratislavské lekárske listy, 2006
This study compared long-term results of the treatment of idiopathic clubfoot at two different Un... more This study compared long-term results of the treatment of idiopathic clubfoot at two different University orthopaedic departments. The treatment of clubfoot is still controversial due to different severity and different treatment philosophies. Authors retrospectively analyzed a group of 273 feet (145 patients) operated on at the Unit of Pediatric orthopaedics, Children University Hospital, Bratislava (group A) and the cohort of 60 feet (33 patients) operated on at the Ist University Department of Orthopaedics, Bratislava (group B), between 1993 and 2002 with follow up period from 2 to 11 years (average 72 months). In the group A, McKay procedure was indicated in 3 feet, Carroll operation in 35 feet and 160 feet were operated by Brockmanns posteromedial release and its modifications (cuboid and metatarsal osteotomies). In the group B, McKay procedure was done in 8 feet and 50 feet were operated on by Turco/ Zacepin procedure. Recurrences in both groups due to the insufficient first s...
Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca
The authors present the case of a 16-year-old boy with osteochondroma of the iliac crest which gr... more The authors present the case of a 16-year-old boy with osteochondroma of the iliac crest which gradually resulted in gluteal muscle atrophy, developing curvature of the spine and compression of the external iliac artery. Osteochondroma excision prevented the development of circulatory disorders in the ipsilateral lower extremity, and effective physical therapy enabled the well cooperating patient to restore fully his gluteal muscle strength and normal gait pattern.
Bratislavské lekárske listy, 2009
Authors evaluated functional outcomes after three different surgical procedures for sarcoma aroun... more Authors evaluated functional outcomes after three different surgical procedures for sarcoma around the knee joint. Sixteen patients with sarcoma were given four to six preoperative courses of chemotherapy. Patients were separated into three groups according to the pattern of tumour excision. The first group underwent the resection of proximal fibula and tibialis anterior muscle resection, the second group underwent resection of distal femur or proximal tibia with total knee replacement, and the third group underwent radical amputation. The mean functional evaluations were 100, 95 and 80%. All marginal resections of proximal fibula resulted in excellent function. No local evidence of tumour recurrence was seen at mean follow-up of 24 months (Tab. 1, Fig. 2, Ref. 7).
Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca, 2008
The authors analyse the first results of correction surgery for limb-length inequality and rotati... more The authors analyse the first results of correction surgery for limb-length inequality and rotational and angular deformities of the tibia using the Taylor spatial frame in combination with the Ilizarov external fixator in three patients. The shortening of the tibia, 65 mm on the average (55, 60 and 80 mm, respectively), was due to tibial hemimilia in two patients and traumatic epiphyseolysis of the distal tibia in one patient. Distraction at a rate of 1 mm/day was controlled three-times a day on two contralateral struts. It started on the seventh day after osteotomy in all three patients. On the second post-operative day, rehabilitation started with standing up and walking with crutches. The additional fixation of the heel and foot was removed at 3 months after distraction was terminated so that ankle exercise would be possible. No serious complications were recorded. The average distraction index was 0.91 and the average tibial lengthening was 65 mm. Callus consolidation was achie...
Bratislavske lekarske listy
This study compared long-term results of the treatment of idiopathic clubfoot at two different Un... more This study compared long-term results of the treatment of idiopathic clubfoot at two different University orthopaedic departments. The treatment of clubfoot is still controversial due to different severity and different treatment philosophies. Authors retrospectively analyzed a group of 273 feet (145 patients) operated on at the Unit of Pediatric orthopaedics, Children University Hospital, Bratislava (group A) and the cohort of 60 feet (33 patients) operated on at the Ist University Department of Orthopaedics, Bratislava (group B), between 1993 and 2002 with follow up period from 2 to 11 years (average 72 months). In the group A, McKay procedure was indicated in 3 feet, Carroll operation in 35 feet and 160 feet were operated by Brockmanns posteromedial release and its modifications (cuboid and metatarsal osteotomies). In the group B, McKay procedure was done in 8 feet and 50 feet were operated on by Turco/ Zacepin procedure. Recurrences in both groups due to the insufficient first s...
Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca, 2011
The authors present the case of a 16-year-old boy with osteochondroma of the iliac crest which gr... more The authors present the case of a 16-year-old boy with osteochondroma of the iliac crest which gradually resulted in gluteal muscle atrophy, developing curvature of the spine and compression of the external iliac artery. Osteochondroma excision prevented the development of circulatory disorders in the ipsilateral lower extremity, and effective physical therapy enabled the well cooperating patient to restore fully his gluteal muscle strength and normal gait pattern.
Surface Science, 2003
The adsorption of oxygen on the Ag(100) is investigated by means of density functional techniques... more The adsorption of oxygen on the Ag(100) is investigated by means of density functional techniques. Starting from a characterization of the clean silver surfaces oxygen adsorption in several modifications (molecularly, on-surface, sub-surface, Ag 2 O) for varying coverage was studied. Besides structural parameters and adsorption energies also work-function changes, vibrational frequencies and core level energies were calculated for a better characterization of the adsorption structures and an easier comparison to the rich experimental data.
Journal of Physics: Condensed Matter, 2004
We have studied the trends in CO adsorption on close-packed metal surfaces: Co, Ni, Cu from the 3... more We have studied the trends in CO adsorption on close-packed metal surfaces: Co, Ni, Cu from the 3d row, Ru, Rh, Pd, Ag from the 4d row and Ir, Pt, Au from the 5d row using density functional theory. In particular, we were concerned with the trends in the adsorption energy, the geometry, the vibrational properties and other parameters derived from the electronic structure of the substrate. The influence of specific changes in our setup such as choice of the exchange correlation functional, the choice of pseudopotential and size of the basis set, substrate relaxation has been carefully evaluated. We found that while the geometrical and vibrational properties of the adsorbate-substrate complex are calculated with high accuracy, the adsorption energies calculated with the gradient-corrected Perdew-Wang exchange-correlation energies are overestimated. In addition, the calculations tend to favour adsorption sites with higher coordination, resulting in the prediction of wrong adsorption sites for the Rh, Pt and Cu surfaces (hollow instead of top). The revised Perdew-Burke-Erzernhof functional (RPBE) leads to lower (i.e. more realistic) adsorption energies for transition metals, but to wrong results for noble metals-for Ag and Au endothermic adsorption is predicted. The site preference remains the same. We discuss trends in relation to the electronic structure of the substrate across the Periodic Table, summarizing the state-of-the-art of CO adsorption on close-packed metal surfaces.
Journal of Physics: Condensed Matter, 2005
... The calculated atomization energies of the O2, N2, and NO molecules are 6.427/12.789 ... the ... more ... The calculated atomization energies of the O2, N2, and NO molecules are 6.427/12.789 ... the catalyst to reorient into a configuration favouring dissociation or desorption without dissociation. ... interatomic distance between N and O. The reverse process, the associative formation of ...
Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca, 2011
The authors present the case of a 16-year-old boy with osteochondroma of the iliac crest which gr... more The authors present the case of a 16-year-old boy with osteochondroma of the iliac crest which gradually resulted in gluteal muscle atrophy, developing curvature of the spine and compression of the external iliac artery. Osteochondroma excision prevented the development of circulatory disorders in the ipsilateral lower extremity, and effective physical therapy enabled the well cooperating patient to restore fully his gluteal muscle strength and normal gait pattern.
Bratislavské lekárske listy, 2009
Authors evaluated functional outcomes after three different surgical procedures for sarcoma aroun... more Authors evaluated functional outcomes after three different surgical procedures for sarcoma around the knee joint. Sixteen patients with sarcoma were given four to six preoperative courses of chemotherapy. Patients were separated into three groups according to the pattern of tumour excision. The first group underwent the resection of proximal fibula and tibialis anterior muscle resection, the second group underwent resection of distal femur or proximal tibia with total knee replacement, and the third group underwent radical amputation. The mean functional evaluations were 100, 95 and 80%. All marginal resections of proximal fibula resulted in excellent function. No local evidence of tumour recurrence was seen at mean follow-up of 24 months (Tab. 1, Fig. 2, Ref. 7).
Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca, 2008
The authors analyse the first results of correction surgery for limb-length inequality and rotati... more The authors analyse the first results of correction surgery for limb-length inequality and rotational and angular deformities of the tibia using the Taylor spatial frame in combination with the Ilizarov external fixator in three patients. The shortening of the tibia, 65 mm on the average (55, 60 and 80 mm, respectively), was due to tibial hemimilia in two patients and traumatic epiphyseolysis of the distal tibia in one patient. Distraction at a rate of 1 mm/day was controlled three-times a day on two contralateral struts. It started on the seventh day after osteotomy in all three patients. On the second post-operative day, rehabilitation started with standing up and walking with crutches. The additional fixation of the heel and foot was removed at 3 months after distraction was terminated so that ankle exercise would be possible. No serious complications were recorded. The average distraction index was 0.91 and the average tibial lengthening was 65 mm. Callus consolidation was achie...
Bratislavské lekárske listy, 2006
This study compared long-term results of the treatment of idiopathic clubfoot at two different Un... more This study compared long-term results of the treatment of idiopathic clubfoot at two different University orthopaedic departments. The treatment of clubfoot is still controversial due to different severity and different treatment philosophies. Authors retrospectively analyzed a group of 273 feet (145 patients) operated on at the Unit of Pediatric orthopaedics, Children University Hospital, Bratislava (group A) and the cohort of 60 feet (33 patients) operated on at the Ist University Department of Orthopaedics, Bratislava (group B), between 1993 and 2002 with follow up period from 2 to 11 years (average 72 months). In the group A, McKay procedure was indicated in 3 feet, Carroll operation in 35 feet and 160 feet were operated by Brockmanns posteromedial release and its modifications (cuboid and metatarsal osteotomies). In the group B, McKay procedure was done in 8 feet and 50 feet were operated on by Turco/ Zacepin procedure. Recurrences in both groups due to the insufficient first s...
Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca
The authors present the case of a 16-year-old boy with osteochondroma of the iliac crest which gr... more The authors present the case of a 16-year-old boy with osteochondroma of the iliac crest which gradually resulted in gluteal muscle atrophy, developing curvature of the spine and compression of the external iliac artery. Osteochondroma excision prevented the development of circulatory disorders in the ipsilateral lower extremity, and effective physical therapy enabled the well cooperating patient to restore fully his gluteal muscle strength and normal gait pattern.
Bratislavské lekárske listy, 2009
Authors evaluated functional outcomes after three different surgical procedures for sarcoma aroun... more Authors evaluated functional outcomes after three different surgical procedures for sarcoma around the knee joint. Sixteen patients with sarcoma were given four to six preoperative courses of chemotherapy. Patients were separated into three groups according to the pattern of tumour excision. The first group underwent the resection of proximal fibula and tibialis anterior muscle resection, the second group underwent resection of distal femur or proximal tibia with total knee replacement, and the third group underwent radical amputation. The mean functional evaluations were 100, 95 and 80%. All marginal resections of proximal fibula resulted in excellent function. No local evidence of tumour recurrence was seen at mean follow-up of 24 months (Tab. 1, Fig. 2, Ref. 7).
Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca, 2008
The authors analyse the first results of correction surgery for limb-length inequality and rotati... more The authors analyse the first results of correction surgery for limb-length inequality and rotational and angular deformities of the tibia using the Taylor spatial frame in combination with the Ilizarov external fixator in three patients. The shortening of the tibia, 65 mm on the average (55, 60 and 80 mm, respectively), was due to tibial hemimilia in two patients and traumatic epiphyseolysis of the distal tibia in one patient. Distraction at a rate of 1 mm/day was controlled three-times a day on two contralateral struts. It started on the seventh day after osteotomy in all three patients. On the second post-operative day, rehabilitation started with standing up and walking with crutches. The additional fixation of the heel and foot was removed at 3 months after distraction was terminated so that ankle exercise would be possible. No serious complications were recorded. The average distraction index was 0.91 and the average tibial lengthening was 65 mm. Callus consolidation was achie...
Bratislavske lekarske listy
This study compared long-term results of the treatment of idiopathic clubfoot at two different Un... more This study compared long-term results of the treatment of idiopathic clubfoot at two different University orthopaedic departments. The treatment of clubfoot is still controversial due to different severity and different treatment philosophies. Authors retrospectively analyzed a group of 273 feet (145 patients) operated on at the Unit of Pediatric orthopaedics, Children University Hospital, Bratislava (group A) and the cohort of 60 feet (33 patients) operated on at the Ist University Department of Orthopaedics, Bratislava (group B), between 1993 and 2002 with follow up period from 2 to 11 years (average 72 months). In the group A, McKay procedure was indicated in 3 feet, Carroll operation in 35 feet and 160 feet were operated by Brockmanns posteromedial release and its modifications (cuboid and metatarsal osteotomies). In the group B, McKay procedure was done in 8 feet and 50 feet were operated on by Turco/ Zacepin procedure. Recurrences in both groups due to the insufficient first s...