3 research outputs found

    The use of nitinol rods in stabilization of the lumbar spine for patients under 21 years

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    The outcomes of surgical treatment of 25 young patients with degenerative diseases of the lumbar spine in two groups were compared in patients with nitinol rods (dynamic stabilization) without spondylodesis and with rigid lumbar fixation of titanium rods. Men - 12, women - 13, the average age is 17.6 years (from 16 to 21 years). These patients are divided into 2 groups depending on the stabilization method. Clinical and radiological results were monitored at least 1 year after the operation. In our study we used nitinol rods of 2 standard sizes - 60 and 80 mm. The size and curvature of the bending of the rods is calculated from the average anatomical parameters characteristic of the lumbar spine and lumbosacral junction. In all groups, there were no statistically significant differences in preoperative values and in the control periods of observation of the VAS (for both the back and the lower limb), Oswestry and SF-36 between patients with nitinol and titanium rods (p> 0.05). In both cases (rigid and dynamic stabilization), statistically significant changes were noted in the postoperative period (p <0.01). In both groups, in comparison with preoperative values, improvement was observed in all control periods, which were highly statistically significant (p <0.01). When studying the mobility in stabilized segment with dynamic nitinol rods, it is determined that the mobility, which persists in 1 segment, averages 4.8Β°. This index is within the limits of measurement error (up to 5Β°), however, when measuring mobility in two segments, the mobility is 9.6Β°. Transpedicular fixation of the lumbosacral spine with the use of nitinol rods is an effective technology that allows to keep movements in the lumbosacral spine in combination with a stable fixation. Further study of this technology should continue, including with reference to deformations of the spine

    Роль ΠΈΠ½Ρ‚Ρ€Π°ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ нСйрофизиологичСского ΠΌΠΎΠ½ΠΈΡ‚ΠΎΡ€ΠΈΠ½Π³Π° Π² ΠΏΡ€Π΅Π΄ΠΎΡ‚Π²Ρ€Π°Ρ‰Π΅Π½ΠΈΠΈ развития послСопСрационных нСврологичСских ослоТнСний Π² Ρ…ΠΈΡ€ΡƒΡ€Π³ΠΈΠΈ сколиотичСской Π΄Π΅Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΈ ΠΏΠΎΠ·Π²ΠΎΠ½ΠΎΡ‡Π½ΠΈΠΊΠ°

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    Bearing in mind that the technique of surgical treatment of scoliosis and skills are high enough, iatrogenic spinal cord injury is still one of theΒ most feared complication of scoliosis surgery. It is well known that the function of the spinal cord may be estimated by combining somatosensoryΒ evoked potentials (SSEP) and motor evoked potentials (MEP). We have retrospectively evaluated the results of intraoperative neurophysiologicalΒ monitoring (IOM) in a large population of patients underwent surgical treatment of spinal deformity. Intraoperative neuromonitoringΒ SSEP and transcranial electrostimulation (TES) – MEP in conjunction with the assessment of the correct position of the screwsΒ was performed in 142 consecutive cases, i. e. all patients who had undergone surgical treatment of idiopathic (127 pts), congenital (10 pts)Β or neurogenic (5 pts) scoliosis. A neurophysiological β€œalarm” was defined as a decrease in amplitude (uni- or bilateral) of at least 50 % forΒ SEPs and of 70 % for TES-MEP compared with baseline. Total intravenous anesthesia (TIVA) in 138 cases was achieved by infusion ofΒ propofol (8–16 mg / kg / h) and in 4 cases by halogenate anesthesia – sevoflurane (0.4–1.8 MAC).Β Seven patients (4.9 %) were reported intraoperative neurophysiological parameters significant changes that require action by the surgeonsΒ and anesthetists, with deterioration of ostoperative neurologic status in one case. Of these three cases, the amplitude drop SSEPs and TESMEPs-was due, to the pharmacological aspects of anesthetic management, in the other four cases – with surgical procedures (responseΒ halo-traction – 1 case, mechanical damage of sheath of the spinal cord by pliers Kerrison – 1case, overcorrection – 2 cases). In five casesΒ (3.5 %) required reposting of pedicle screws (1–2 levels). Only one patient (0.7 %) had a persistent postoperative neurological disorderΒ (neuropathic pain), respectively from a level of re-reposition of pedicle screws.НСсмотря Π½Π° Ρ‚ΠΎ, Ρ‡Ρ‚ΠΎ Π½Π° сСгодняшний дСнь Ρ‚Π΅Ρ…Π½ΠΈΠΊΠ° хирургичСских Π²ΠΌΠ΅ΡˆΠ°Ρ‚Π΅Π»ΡŒΡΡ‚Π² ΠΏΠΎ ΠΏΠΎΠ²ΠΎΠ΄Ρƒ сколиотичСской Π΄Π΅Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΈ ΠΏΠΎΠ·Π²ΠΎΠ½ΠΎΡ‡Π½ΠΈΠΊΠ° (Π‘Π”ΠŸ) ΠΈ квалификация Ρ…ΠΈΡ€ΡƒΡ€Π³ΠΎΠ² достаточно высоки, ятрогСнноС ΠΏΠΎΠ²Ρ€Π΅ΠΆΠ΄Π΅Π½ΠΈΠ΅ спинного ΠΌΠΎΠ·Π³Π° всС Π΅Ρ‰Π΅ остаСтся одним ΠΈΠ· самых тяТСлых ослоТнСний Π² Ρ…ΠΈΡ€ΡƒΡ€Π³ΠΈΠΈ сколиотичСской Π΄Π΅Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΈ ΠΏΠΎΠ·Π²ΠΎΠ½ΠΎΡ‡Π½ΠΈΠΊΠ°. Π’Π°ΠΆΠ½ΠΎΡΡ‚ΡŒ сочСтания соматосСнсорных Π²Ρ‹Π·Π²Π°Π½Π½Ρ‹Ρ… ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΠΎΠ² (Π‘Π‘Π’ΠŸ) ΠΈ Ρ‚Ρ€Π°Π½ΡΠΊΡ€Π°Π½ΠΈΠ°Π»ΡŒΠ½Ρ‹Ρ… ΠΌΠΎΡ‚ΠΎΡ€Π½Ρ‹Ρ… Π²Ρ‹Π·Π²Π°Π½Π½Ρ‹Ρ… ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΠΎΠ² (Π’ΠΊ-ΠœΠ’ΠŸ) Π² ΠΌΠΎΠ½ΠΈΡ‚ΠΎΡ€ΠΈΠ½Π³Π΅Β Ρ…ΠΈΡ€ΡƒΡ€Π³ΠΈΠΈ ΠΏΠΎΠ·Π²ΠΎΠ½ΠΎΡ‡Π½ΠΈΠΊΠ° Ρ…ΠΎΡ€ΠΎΡˆΠΎ извСстна. Нами рСтроспСктивно Π±Ρ‹Π»ΠΈ ΠΎΡ†Π΅Π½Π΅Π½Ρ‹ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ нСйрофизиологичСского ΠΈΠ½Ρ‚Ρ€Π°ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΌΠΎΠ½ΠΈΡ‚ΠΎΡ€ΠΈΠ½Π³Π° Π² большой популяции ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ², ΠΏΠ΅Ρ€Π΅Π½Π΅ΡΡˆΠΈΡ… хирургичСскоС Π»Π΅Ρ‡Π΅Π½ΠΈΠ΅ Π‘Π”ΠŸ. Π˜Π½Ρ‚Ρ€Π°ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΎΠ½Π½Ρ‹ΠΉ Π½Π΅ΠΉΡ€ΠΎΠΌΠΎΠ½ΠΈΡ‚ΠΎΡ€ΠΈΠ½Π³ Π‘Π‘Π’ΠŸ ΠΈ Π’ΠΊ-ΠœΠ’ΠŸ Π² сочСтании с ΠΎΡ†Π΅Π½ΠΊΠΎΠΉ ΠΊΠΎΡ€Ρ€Π΅ΠΊΡ‚Π½ΠΎΠ³ΠΎ полоТСния Π²ΠΈΠ½Ρ‚ΠΎΠ² Π±Ρ‹Π» Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ 142 ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΒ ΠΏΡ€ΠΎΠΎΠΏΠ΅Ρ€ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹ΠΌ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°ΠΌ, ΠΈΠ· Π½ΠΈΡ… с идиопатичСским сколиозом – 127 Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ…, с Π΄Π΅Π³Π΅Π½Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½Ρ‹ΠΌ – 10, с Π½Π΅ΠΉΡ€ΠΎΠ³Π΅Π½Π½Ρ‹ΠΌ – 5.Β Π’ΠΎΡ‚Π°Π»ΡŒΠ½Π°Ρ внутривСнная анСстСзия Π² 138 случаях Π΄ΠΎΡΡ‚ΠΈΠ³Π°Π»Π°ΡΡŒ ΠΏΡƒΡ‚Π΅ΠΌ ΠΈΠ½Ρ„ΡƒΠ·ΠΈΠΈ ΠΏΡ€ΠΎΠΏΠΎΡ„ΠΎΠ»Π° (8–16 ΠΌΠ³ / ΠΊΠ³ / Ρ‡), Π² 4 случаях ΠΏΠΎΠ΄Π΄Π΅Ρ€ΠΆΠΈΠ²Π°Π»Π°ΡΡŒ ингаляционным анСстСтиком сСвофлураном (МАК 0.4–1.8). Π’ качСствС нСйрофизиологичСского ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Π° Ρ‚Ρ€Π΅Π²ΠΎΠ³ΠΈΒ ΠΏΡ€ΠΈΠ½ΠΈΠΌΠ°Π»ΠΈ ΠΏΠ°Π΄Π΅Π½ΠΈΠ΅ Π°ΠΌΠΏΠ»ΠΈΡ‚ΡƒΠ΄Ρ‹ (ΡƒΠ½ΠΈ- ΠΈ / ΠΈΠ»ΠΈ Π±ΠΈΠ»Π°Ρ‚Π΅Ρ€Π°Π»ΡŒΠ½ΠΎΠ΅) ΠΏΠΎ ΠΊΡ€Π°ΠΉΠ½Π΅ΠΉ ΠΌΠ΅Ρ€Π΅ Π½Π° 50 % для Π‘Π‘Π’ΠŸ ΠΈ Π½Π° 70 % для Π’ΠΊ-ΠœΠ’ΠŸ ΠΏΠΎ ΡΡ€Π°Π²Π½Π΅Π½ΠΈΡŽ с исходными Π΄Π°Π½Π½Ρ‹ΠΌΠΈ. Π‘ Ρ†Π΅Π»ΡŒΡŽ прСдупрСТдСния развития сСгмСнтарных нСврологичСских ослоТнСний ΠΊΠ°ΠΆΠ΄Ρ‹ΠΉ транспСдикулярный Π²ΠΈΠ½Ρ‚ мСталлоконструкции тСстировался монополярным Π·ΠΎΠ½Π΄ΠΎΠΌ; отсутствиС Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ раздраТСния Π² ΠΎΡ‚Π²Π΅Ρ‚Β Π½Π° ΡΡ‚ΠΈΠΌΡƒΠ»ΡΡ†ΠΈΡŽ расцСнивали ΠΊΠ°ΠΊ ΠΊΠΎΡ€Ρ€Π΅ΠΊΡ‚Π½ΠΎΠ΅ ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅ Π²ΠΈΠ½Ρ‚Π°.Β Π£ 15 (10,5 %) ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² ΠΈΠ½Ρ‚Ρ€Π°ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΎΠ½Π½ΠΎ Π±Ρ‹Π»ΠΈ зарСгистрированы Π·Π½Π°Ρ‡ΠΈΠΌΡ‹Π΅ измСнСния нСйрофизиологичСских ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ²,Β Ρ‡Ρ‚ΠΎ ΠΏΠΎΡ‚Ρ€Π΅Π±ΠΎΠ²Π°Π»ΠΎ Π°ΠΊΡ‚ΠΈΠ²Π½Ρ‹Ρ… дСйствий со стороны Ρ…ΠΈΡ€ΡƒΡ€Π³ΠΎΠ² ΠΈ анСстСзиологов, ΠΏΡ€ΠΈ этом лишь Ρƒ 2 (1,4 %) развился послСопСрационный нСврологичСский Π΄Π΅Ρ„ΠΈΡ†ΠΈΡ‚. Π˜Π½Ρ‚Ρ€Π°ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΎΠ½Π½ΠΎΠ΅ ΠΏΠ°Π΄Π΅Π½ΠΈΠ΅ Π°ΠΌΠΏΠ»ΠΈΡ‚ΡƒΠ΄Ρ‹ Π’ΠΊ-ΠœΠ’Πž ΠΈ Π‘Π‘Π’ΠŸ Π²ΠΏΠ»ΠΎΡ‚ΡŒ Π΄ΠΎ исчСзновСния Π±Ρ‹Π»ΠΎΒ ΠΎΡ‚ΠΌΠ΅Ρ‡Π΅Π½ΠΎ Π² 10 (7 %) случаях; ΠΈΠ· Π½ΠΈΡ… Π² 4 (2,8 %) случаях Π±Ρ‹Π»ΠΎ связано с анСстСзиологичСским обСспСчСниСм, Π² 6 (4,2 %) ΡΠ»ΡƒΡ‡Π°ΡΡ…Β Π²Ρ‹ΡˆΠ΅ΡƒΠΊΠ°Π·Π°Π½Π½Ρ‹Π΅ нСйрофизиологичСскиС измСнСния Π±Ρ‹Π»ΠΈ Π²Ρ‹Π·Π²Π°Π½Ρ‹ хирургичСскими манипуляциями, ΠΈΠ· Π½ΠΈΡ… Π² ΠΌΠΎΠΌΠ΅Π½Ρ‚ Π³Π°Π»ΠΎ-Ρ‚Ρ€Π°ΠΊΡ†ΠΈΠΈ – 1 (0,7 %) случай, ΠΈΠ½Ρ‚Ρ€Π°ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΎΠ½Π½ΠΎΠ΅ ΠΏΠΎΠ²Ρ€Π΅ΠΆΠ΄Π΅Π½ΠΈΠ΅ ΠΎΠ±ΠΎΠ»ΠΎΡ‡Π΅ΠΊ спинного ΠΌΠΎΠ·Π³Π° хирургичСским инструмСнтом (ΠΊΡƒΡΠ°Ρ‡ΠΊΠΈΠšΠ΅Ρ€ΠΈΡΡΠΎΠ½Π°) – 1 (0,7 %), рСакция Π½Π° Π³ΠΈΠΏΠ΅Ρ€ΠΊΠΎΡ€Ρ€Π΅ΠΊΡ†ΠΈΡŽ – 4 (2,8 %) случая. ΠŸΠΎΠ²Ρ‚ΠΎΡ€Π½ΠΎΠ΅ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ транспСдикулярных Π²ΠΈΠ½Ρ‚ΠΎΠ²Β ΠΏΠΎΡ‚Ρ€Π΅Π±ΠΎΠ²Π°Π»ΠΎΡΡŒ 5 (3,5 %) ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°ΠΌ, послС Ρ‡Π΅Π³ΠΎ лишь Ρƒ 1 (0,7 %) Π² послСопСрационном ΠΏΠ΅Ρ€ΠΈΠΎΠ΄Π΅ Ρ€Π°Π·Π²ΠΈΠ»ΠΈΡΡŒ нСйропатичСскиС Π±ΠΎΠ»ΠΈ,Β ΡΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΡ‚Π²ΠΎΠ²Π°Π²ΡˆΠΈΠ΅ ΡƒΡ€ΠΎΠ²Π½ΡŽ пСрСпровСдСния
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