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Papers by Vladimir Shevtsov

Rev Chir Orthop Reparat App, 2007

Rev Chir Orthop Reparat App, 2004

Data Revues 00351040 0090sup6 2s41, Apr 16, 2008

Rev Chir Orthop Reparat App, 2004

Revue de Chirurgie Orthopédique et Réparatrice de l'Appareil Moteur, 2004

Hirurgiâ pozvonočnika, 2013

To analyze the results of surgery for cervicothoracic deformity fractures in patients with ankylo... more To analyze the results of surgery for cervicothoracic deformity fractures in patients with ankylosing spondylitis. Material and Methods. Retrospective review of treatment for fractures of cervicothoracic deformity in 6 patients with ankylosing spondylitis was performed. All patients had transdiscal fractures caused by low-energy trauma, most frequently at C5-C6 and C6-C7 levels. Each patient had at least one comorbidity. The spinal cord was injured in 100 % of cases. Results. Postoperative complications were registered in all patients. Analysis of postoperative x-rays showed that spinal deformity was corrected in most cases, and the stable fixation was achieved at the operated level of the spine. Three patients who had underwent anterior fixation showed the regression of neurological symptoms. Patients classified as Frankel A died of cardiopulmonary insufficiency at 2-7 days after surgery without any signs of neurological symptom regression. Autopsy revealed severe spinal cord injury. Mortality rate was 50 %. Conclusion. Surgical treatment of cervical spine fractures providing a stable fixation reduces the risk of complications and allows for early activation of patients with ankylosing spondylitis.

In this paper Authors described aura [1] detection system based on the luminescence [2] phenomena... more In this paper Authors described aura [1] detection system based on the luminescence [2] phenomena in combination of the photomultiplier. This system can detect aura of living organisms and non-living objects. It can be used as receiver in torsion field communication systems.

Revue de Chirurgie Orthopédique et Réparatrice de l'Appareil Moteur, 2004

Bone lengthening with the Ilizarov technique gives good results but certain disadvantages are com... more Bone lengthening with the Ilizarov technique gives good results but certain disadvantages are common: possible axial deviation during lengthening, long time to bone union, risk of fracture after removal of the external fixator. Associating the Ilizarov technique with elastic stable intramedullary nailing (ESIN) commonly used in traumatoloy has to be evaluated. We conducted an experimental study and report results of the first clinical application. Discussion Bone lengthening may be obtained with an intramedullary locking nail which avoids the use of an external fixator but also destroys the endomedullary circulation. Our experimental and clinical study shows that use of an ESIN does not inhibit the endosteal regenerate and seems to improve new bone formation. In many patients, the lengthening rate had to be increased to avoid premature bone fusion. When used in optimal conditions, ESIN can stimulate new endosteal and periosteal bone formation. In addition, ESIN increases shaft stability avoiding the risk of axial deviation. ESIN plays an additional role of stabilization after early removal of the external fixation.

Data Revues 00351040 0093sup7 108_2, May 14, 2008

Revue de Chirurgie Orthopédique et Réparatrice de l'Appareil Moteur, 2004

2S41 codifiée permettant des allongements très importants, notamment chez les sujets de petites t... more 2S41 codifiée permettant des allongements très importants, notamment chez les sujets de petites tailles surtout dans les nanismes d'origine hypo ou achondroplasiques, avec des allongements de plus de 14 cm et un pourcentage d'allongement de plus de 60 %, ce qui n'était pas possible avec les autres techniques. À noter qu'un sujet sur deux ne présente aucune complication à la fin de l'allongement.

Data Revues 00351040 0093sup7 108, May 14, 2008

Journal of Bone Joint Surgery British Volume, Jul 1, 2008

Purpose of the study: A population of 154 patients was studied to determine the advantages of con... more Purpose of the study: A population of 154 patients was studied to determine the advantages of continuous lengthening for congenital lower limb length discrepancy (LLLD). Material and methods: In a first series, we analyzed 80 progressive lengthenings using the standard rhythm (1 mm daily, 4 lenghtenings per day). In a second series (74 lengthenings) a high-frequency rhythm was used (1 mm daily, 60 lengthenings per day). Mean patient age was 10.3 years. Bone regeneration was not stimulated (either by extemporaneous compression or stable elastic centromedullary nailing) in this population. The automatic lengthening fixator was composed of the two standard pieces of the Ilizarov system and complementary blocks with self-propelled traction rods. Besides simplifying the lengthening procedure, these rods allowed high-frequency correction of associated deformities. Results: Femoral gain was 52 mm on average. For the tibia, the gain was 48 mm on average. For ordinary monosegmentary lengthenings, the healing index was 27.6 d/cm for the femur and 36.0 d/cm for the tibia. For multisegmentary lengthenings with the standard rhythm, the overall healing index was 20.3 d/cm. For patients with high-frequency lengthening, time to healing was shorter. The radiological findings showed the presence of significant bone regeneration which was never inhibited. For monosegmentary lengthenings, the healing index was 22.9 d/cm for the femur and 27.1 d/cm for the tibia. For the multisegmentary high-frequency lengthenings, the overall healing index was 14.7 d/cm. The difference between standard and high-frequency lengthening was significant. In the first series, motion of the adjacent joints was recovered within 12 to 18 months after removal of the fixator. The patients remained in the reclining position during the high-frequency lengthenings and very satisfactory results (complete recovery of joint motion) were obtained 12 months after removing the fixator. In addition, in the second series, there was no impact on the spontaneous growth of the lengthened segments. Discussion and conclusion: Congenital LLLD is generally more difficult to treat than acquired conditions (Damsin et al., Grill et al., Glorion Ch.). The rate of complications remains significant, particularly concerning healing complications and stiffness in the adjacent joints. Our clinical results prove that high-frequency lengthening provides optimal conditions for tissue regeneration. For children with congenital LLLD, continuous lengthening shortens the delay to healing and avoids stiffness in the adjacent joints.

Data Revues 00351040 0090sup6 2s69, Apr 16, 2008

Rev Chir Orthop Reparat App, 2007

Rev Chir Orthop Reparat App, 2004

Data Revues 00351040 0090sup6 2s41, Apr 16, 2008

Rev Chir Orthop Reparat App, 2004

Revue de Chirurgie Orthopédique et Réparatrice de l'Appareil Moteur, 2004

Hirurgiâ pozvonočnika, 2013

To analyze the results of surgery for cervicothoracic deformity fractures in patients with ankylo... more To analyze the results of surgery for cervicothoracic deformity fractures in patients with ankylosing spondylitis. Material and Methods. Retrospective review of treatment for fractures of cervicothoracic deformity in 6 patients with ankylosing spondylitis was performed. All patients had transdiscal fractures caused by low-energy trauma, most frequently at C5-C6 and C6-C7 levels. Each patient had at least one comorbidity. The spinal cord was injured in 100 % of cases. Results. Postoperative complications were registered in all patients. Analysis of postoperative x-rays showed that spinal deformity was corrected in most cases, and the stable fixation was achieved at the operated level of the spine. Three patients who had underwent anterior fixation showed the regression of neurological symptoms. Patients classified as Frankel A died of cardiopulmonary insufficiency at 2-7 days after surgery without any signs of neurological symptom regression. Autopsy revealed severe spinal cord injury. Mortality rate was 50 %. Conclusion. Surgical treatment of cervical spine fractures providing a stable fixation reduces the risk of complications and allows for early activation of patients with ankylosing spondylitis.

In this paper Authors described aura [1] detection system based on the luminescence [2] phenomena... more In this paper Authors described aura [1] detection system based on the luminescence [2] phenomena in combination of the photomultiplier. This system can detect aura of living organisms and non-living objects. It can be used as receiver in torsion field communication systems.

Revue de Chirurgie Orthopédique et Réparatrice de l'Appareil Moteur, 2004

Bone lengthening with the Ilizarov technique gives good results but certain disadvantages are com... more Bone lengthening with the Ilizarov technique gives good results but certain disadvantages are common: possible axial deviation during lengthening, long time to bone union, risk of fracture after removal of the external fixator. Associating the Ilizarov technique with elastic stable intramedullary nailing (ESIN) commonly used in traumatoloy has to be evaluated. We conducted an experimental study and report results of the first clinical application. Discussion Bone lengthening may be obtained with an intramedullary locking nail which avoids the use of an external fixator but also destroys the endomedullary circulation. Our experimental and clinical study shows that use of an ESIN does not inhibit the endosteal regenerate and seems to improve new bone formation. In many patients, the lengthening rate had to be increased to avoid premature bone fusion. When used in optimal conditions, ESIN can stimulate new endosteal and periosteal bone formation. In addition, ESIN increases shaft stability avoiding the risk of axial deviation. ESIN plays an additional role of stabilization after early removal of the external fixation.

Data Revues 00351040 0093sup7 108_2, May 14, 2008

Revue de Chirurgie Orthopédique et Réparatrice de l'Appareil Moteur, 2004

2S41 codifiée permettant des allongements très importants, notamment chez les sujets de petites t... more 2S41 codifiée permettant des allongements très importants, notamment chez les sujets de petites tailles surtout dans les nanismes d'origine hypo ou achondroplasiques, avec des allongements de plus de 14 cm et un pourcentage d'allongement de plus de 60 %, ce qui n'était pas possible avec les autres techniques. À noter qu'un sujet sur deux ne présente aucune complication à la fin de l'allongement.

Data Revues 00351040 0093sup7 108, May 14, 2008

Journal of Bone Joint Surgery British Volume, Jul 1, 2008

Purpose of the study: A population of 154 patients was studied to determine the advantages of con... more Purpose of the study: A population of 154 patients was studied to determine the advantages of continuous lengthening for congenital lower limb length discrepancy (LLLD). Material and methods: In a first series, we analyzed 80 progressive lengthenings using the standard rhythm (1 mm daily, 4 lenghtenings per day). In a second series (74 lengthenings) a high-frequency rhythm was used (1 mm daily, 60 lengthenings per day). Mean patient age was 10.3 years. Bone regeneration was not stimulated (either by extemporaneous compression or stable elastic centromedullary nailing) in this population. The automatic lengthening fixator was composed of the two standard pieces of the Ilizarov system and complementary blocks with self-propelled traction rods. Besides simplifying the lengthening procedure, these rods allowed high-frequency correction of associated deformities. Results: Femoral gain was 52 mm on average. For the tibia, the gain was 48 mm on average. For ordinary monosegmentary lengthenings, the healing index was 27.6 d/cm for the femur and 36.0 d/cm for the tibia. For multisegmentary lengthenings with the standard rhythm, the overall healing index was 20.3 d/cm. For patients with high-frequency lengthening, time to healing was shorter. The radiological findings showed the presence of significant bone regeneration which was never inhibited. For monosegmentary lengthenings, the healing index was 22.9 d/cm for the femur and 27.1 d/cm for the tibia. For the multisegmentary high-frequency lengthenings, the overall healing index was 14.7 d/cm. The difference between standard and high-frequency lengthening was significant. In the first series, motion of the adjacent joints was recovered within 12 to 18 months after removal of the fixator. The patients remained in the reclining position during the high-frequency lengthenings and very satisfactory results (complete recovery of joint motion) were obtained 12 months after removing the fixator. In addition, in the second series, there was no impact on the spontaneous growth of the lengthened segments. Discussion and conclusion: Congenital LLLD is generally more difficult to treat than acquired conditions (Damsin et al., Grill et al., Glorion Ch.). The rate of complications remains significant, particularly concerning healing complications and stiffness in the adjacent joints. Our clinical results prove that high-frequency lengthening provides optimal conditions for tissue regeneration. For children with congenital LLLD, continuous lengthening shortens the delay to healing and avoids stiffness in the adjacent joints.

Data Revues 00351040 0090sup6 2s69, Apr 16, 2008