COMPARISON OF LCP AND INTRAMEDULLARY NAIL OSTEOSYNTHESIS IN CALCANEAL FRACTURES.

OBJECTIVE: This study compared groups of patients with calcaneal fractures of Sanders types II and III. One group was treated with ORIF using an LCP (plate), while the second was treated with a minimally invasive method using a C-Nail. METHODS: The study included 217 patients in the ORIF group and 19 patients in the minimally invasive nail osteosynthesis group. RESULTS: In the LCP group, the outcomes were excellent for 35.7% of the patients; good, 38.9%; satisfactory, 19.7%; and poor, 5.7%. In the C-Nail group, the outcomes were excellent for 36.9% of the patients; good; 31.6%; satisfactory, 21%; and poor, 10.2%. The mean values of the restoration of Böhler's angle from post-injury were 6.8° to 32.3° in the LCP group and 7.1° to 33.3° in the C-Nail group. After 12 months, there was only a minimal decrease in Böhler's angle to 29.2° in both the LCP and C-Nail groups. CONCLUSION: The outcomes obtained with C-Nail fixation are statistically identical to those obtained with LCP fixation. We conclude that osteosynthesis with a C-Nail is suitable as the first-choice treatment for Sanders types II and III fractures. Level of evidence IV, retrospective observational study.

OBJETIVO: Comparar grupos de pacientes com fratura intra-articular do calcâneo tipos II e III de Sanders. MÉTODOS: Estudo retrospectivo que incluiu 217 pacientes no grupo tratado por redução aberta e fixação interna com placa de compressão (Grupo PC) e 19 pacientes que seguiram um método minimamente invasivo com C-Nail. RESULTADOS: No Grupo PC, os resultados foram excelentes em 35,7%, bons em 38,9%, satisfatórios em 19,17% e ruins em 5,7%. Os resultados registados no grupo que recebeu implante de unha foram excelentes em 36,9%, bons em 31,6%, satisfatórios em 21% e ruins em 10,2% Os valores médios do restauro do ângulo de Böhler desde o pós-ferimento variaram entre 6,8° e 32,3°, no Grupo PC, e entre 7,1° e 33,3°, no grupo tratado com C-Nail. Ao fim de 12 meses, apenas se observou redução mínima do ângulo de Böhler para 29,2° nos dois grupos. CONCLUSÃO: Os resultados do método recentemente introduzido de osteossíntese minimamente invasiva com C-Nail são estatisticamente idênticos aos obtidos pela redução aberta e fixação interna com placa de compressão. Assim, o novo tipo de osteossíntese com C-Nail é adequado como primeira escolha em fraturas do tipo Sanders II e III. Nível de evidência IV, Estudo retrospectivo de observação.

Comparison of lcp and intramedullary nail osteosynthesis in calcaneal fractures / Comparação entre placa de osteossíntese e haste intramedular em fratura do calcâneo

ABSTRACT Objective: This study compared groups of patients with calcaneal fractures of Sanders types II and III. One group was treated with ORIF using an LCP (plate), while the second was treated with a minimally invasive method using a C-Nail. Methods: The study included 217 patients in the ORIF group and 19 patients in the minimally invasive nail osteosynthesis group. Results: In the LCP group, the outcomes were excellent for 35.7% of the patients; good, 38.9%; satisfactory, 19.7%; and poor, 5.7%. In the C-Nail group, the outcomes were excellent for 36.9% of the patients; good; 31.6%; satisfactory, 21%; and poor, 10.2%. The mean values of the restoration of Böhler's angle from post-injury were 6.8° to 32.3° in the LCP group and 7.1° to 33.3° in the C-Nail group. After 12 months, there was only a minimal decrease in Böhler's angle to 29.2° in both the LCP and C-Nail groups. Conclusion: The outcomes obtained with C-Nail fixation are statistically identical to those obtained with LCP fixation. We conclude that osteosynthesis with a C-Nail is suitable as the first-choice treatment for Sanders types II and III fractures. Level of evidence IV, retrospective observational study.

RESUMO Objetivo: Comparar grupos de pacientes com fratura intra-articular do calcâneo tipos II e III de Sanders. Métodos: Estudo retrospectivo que incluiu 217 pacientes no grupo tratado por redução aberta e fixação interna com placa de compressão (Grupo PC) e 19 pacientes que seguiram um método minimamente invasivo com C-Nail. Resultados: No Grupo PC, os resultados foram excelentes em 35,7%, bons em 38,9%, satisfatórios em 19,17% e ruins em 5,7%. Os resultados registados no grupo que recebeu implante de unha foram excelentes em 36,9%, bons em 31,6%, satisfatórios em 21% e ruins em 10,2% Os valores médios do restauro do ângulo de Böhler desde o pós-ferimento variaram entre 6,8° e 32,3°, no Grupo PC, e entre 7,1° e 33,3°, no grupo tratado com C-Nail. Ao fim de 12 meses, apenas se observou redução mínima do ângulo de Böhler para 29,2° nos dois grupos. Conclusão: Os resultados do método recentemente introduzido de osteossíntese minimamente invasiva com C-Nail são estatisticamente idênticos aos obtidos pela redução aberta e fixação interna com placa de compressão. Assim, o novo tipo de osteossíntese com C-Nail é adequado como primeira escolha em fraturas do tipo Sanders II e III. Nível de evidência IV, Estudo retrospectivo de observação.

Quality of Life Following Prestige LP Cervical Disc Arthroplasty in a Prospective Multicountry Study.

BACKGROUND: To describe routine surgical practice using Prestige LP Cervical Disc (Prestige disc) and patient outcomes for degenerative cervical disc disease in a multicenter 2-year prospective, observational study. METHODS: Patient demographics and intraoperative data were collected; quality of life (QoL) (EQ-5D, EQ-VAS, and neck disability index), average disc height, and adverse events were assessed pre- and postoperatively at 3, 6, 12, and 24 months. RESULTS: One hundred and ninety-four patients were enrolled (190 patients implanted; female: 67%; mean age: 44.0 years; mean body mass index: 25.6). Disc herniation was the most frequent indication for cervical arthroplasty (80.5%). Thirty-seven percent of patients experienced pain for >1 year prior to baseline assessment. Mean procedure duration was 87.1 minutes, and mean blood loss was 43.8 mL. The majority (71.0%) of Prestige discs were implanted at level C5 to C6, while 16.3% of patients received implants at 2 levels. There was a significant improvement from baseline to 3, 6, 12, and 24 months of follow-up in all QoL assessments. After implantation, the mean disc height at the affected level increased by 0.19 from baseline (0.22) to 3 months (0.41) and remained constant up to 24 months (P < .001). Mean disc height of levels above and below the implant remained comparable at baseline and follow-up. A total of 63 adverse events (44 patients) was recorded, of which 7 (11.1%) were related to the Prestige disc, instrumentation, or procedure; 41 (65.1%) were unrelated; and 15 (23.8%) had an unknown relation. CONCLUSIONS: In line with published findings, our study shows significant improvement in outcomes in the first 3 months after Prestige disc implantation with improvements maintained throughout the study.

Histochemical and histological changes of paraspinal muscles in patients with thoracic and lumbar spine fractures treated with open and minimally invasive stabilisation.

BACKGROUND: Histological and histochemical analyses of muscle samples were used to determine the intensity of paraspinal muscle injury during open (OPEN) and minimally invasive (MIS) procedures due to spinal trauma. OBJECTIVE: A randomised prospective study design was chosen. According to our hypothesis, OPEN procedures will lead to more intensive microscopic changes than MIS. METHODS: Muscle samples were collected during the primary surgery - fracture surgery (FRS) from the left and during material extraction (EXS) from the right side. Complete samples were acquired from 17 OPEN and 18 MIS subjects. We compared them histochemically and histologically; muscle fibre typing and statistical analysis were performed. RESULTS: We statistically confirmed that the increase in fibrosis in the OPEN EXS sample was significantly higher than in the MIS EXS sample, with p< 0.05 (p= 0.000322453). Fibre types in MIS did not differ almost at all in both samples; the changes were statistically insignificant.In OPEN samples, the number of type I fibres differed significantly. In EXS, it was significantly lower (46.23%) than in FRS (60.63%), at a statistically significant level, p< 0.05 (p= 0.0234375000) especially with the increase of the type IIA fibres, less in IIB fibres. CONCLUSIONS: These microscopic findings provide a statistically significant confirmation that OPEN procedures in spinal fracture lead, in most cases, to significant changes in the structure of the corset muscle at the fracture site and surgical access point than MIS procedures.