COMPARISON OF MONO AND POLY-AXIAL PEDICLE SCREW FIXATION IN THORACOLUMBAR A3/A4 FRACTURES
ABSTRACT Objective: This study aims to compare the use of mono-axial and poly-axial screws in AOSpine type A3 and A4 thoracolumbar fractures. Methods: Prospective case-control study involving patients treated surgically with short fixation using mono-axial or poly-axial screws. The type of treatme...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Coluna (SBC)
2025-02-01
|
| Series: | Coluna/Columna |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1808-18512025000100800&lng=en&tlng=en |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1823859183723741184 |
|---|---|
| author | EMILIANO NEVES VIALLE BARBARA MIROSKI DE OLIVEIRA PINTO JOANA BRETAS CABRAL RONDOM GUASQUE LUIZ ROBERTO GOMES VIALLE RENATO FEDATO BERALDO |
| author_facet | EMILIANO NEVES VIALLE BARBARA MIROSKI DE OLIVEIRA PINTO JOANA BRETAS CABRAL RONDOM GUASQUE LUIZ ROBERTO GOMES VIALLE RENATO FEDATO BERALDO |
| author_sort | EMILIANO NEVES VIALLE |
| collection | DOAJ |
| description | ABSTRACT Objective: This study aims to compare the use of mono-axial and poly-axial screws in AOSpine type A3 and A4 thoracolumbar fractures. Methods: Prospective case-control study involving patients treated surgically with short fixation using mono-axial or poly-axial screws. The type of treatment was chosen according to the surgeons’ preference and implant availability. The qualitative variables used were the type of implant (mono-axial or poly-axial), type of fracture (A3 or A4), neurological deficit, use of an additional screw in the fractured vertebra, and need for reoperation. The quantitative variables were preoperative Cobb (CobbPre); immediate postoperative Cobb (CobbPOI); late postoperative Cobb (CobbPOL); Delta (∆) kyphosis; preoperative anterior vertebral body collapse (AVBC%); postoperative AVBC%; ∆ AVBC%. For quantitative variables, the Student’s T Test was used. Results: 35 patients were included, 22 in the mono-axial group (eight patients A3 and 14 A4) and 13 in the poly-axial group (two patients A3 and 11 A4). The postoperative AVBC% was statistically superior for the mono-axial group (mean of 0.60±0.09 in the pre-operative AVBC% to 0.77±0.11 in the post-operative), compared to the poly-axial group (0.60±0.12 to 0.69± 0.13), p=0.04. ∆ AVBC% was also statistically different (0.17±0.10 in the mono-axial group and 0.08±0.12 in the poly-axial group), p=0.01. The other quantitative variables had no significant differences. Conclusion: Surgical treatment using mono-axial screws was statistically superior in recovering anterior vertebral body height. Level of Evidence III; Prospective Case-Control Study. |
| format | Article |
| id | doaj-art-7a288995e3544399acc403660e9d0a80 |
| institution | Kabale University |
| issn | 2177-014X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Sociedade Brasileira de Coluna (SBC) |
| record_format | Article |
| series | Coluna/Columna |
| spelling | doaj-art-7a288995e3544399acc403660e9d0a802025-02-11T07:42:45ZengSociedade Brasileira de Coluna (SBC)Coluna/Columna2177-014X2025-02-0124110.1590/s1808-185120252401289576COMPARISON OF MONO AND POLY-AXIAL PEDICLE SCREW FIXATION IN THORACOLUMBAR A3/A4 FRACTURESEMILIANO NEVES VIALLEhttps://orcid.org/0000-0003-1157-4889BARBARA MIROSKI DE OLIVEIRA PINTOhttps://orcid.org/0000-0001-6341-1593JOANA BRETAS CABRAL RONDOM GUASQUEhttps://orcid.org/0000-0001-5057-940XLUIZ ROBERTO GOMES VIALLEhttps://orcid.org/0000-0002-0638-4311RENATO FEDATO BERALDOhttps://orcid.org/0000-0001-8892-1493ABSTRACT Objective: This study aims to compare the use of mono-axial and poly-axial screws in AOSpine type A3 and A4 thoracolumbar fractures. Methods: Prospective case-control study involving patients treated surgically with short fixation using mono-axial or poly-axial screws. The type of treatment was chosen according to the surgeons’ preference and implant availability. The qualitative variables used were the type of implant (mono-axial or poly-axial), type of fracture (A3 or A4), neurological deficit, use of an additional screw in the fractured vertebra, and need for reoperation. The quantitative variables were preoperative Cobb (CobbPre); immediate postoperative Cobb (CobbPOI); late postoperative Cobb (CobbPOL); Delta (∆) kyphosis; preoperative anterior vertebral body collapse (AVBC%); postoperative AVBC%; ∆ AVBC%. For quantitative variables, the Student’s T Test was used. Results: 35 patients were included, 22 in the mono-axial group (eight patients A3 and 14 A4) and 13 in the poly-axial group (two patients A3 and 11 A4). The postoperative AVBC% was statistically superior for the mono-axial group (mean of 0.60±0.09 in the pre-operative AVBC% to 0.77±0.11 in the post-operative), compared to the poly-axial group (0.60±0.12 to 0.69± 0.13), p=0.04. ∆ AVBC% was also statistically different (0.17±0.10 in the mono-axial group and 0.08±0.12 in the poly-axial group), p=0.01. The other quantitative variables had no significant differences. Conclusion: Surgical treatment using mono-axial screws was statistically superior in recovering anterior vertebral body height. Level of Evidence III; Prospective Case-Control Study.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1808-18512025000100800&lng=en&tlng=enSpinal FracturesSpinal InjuriesPedicle ScrewsKyphosis |
| spellingShingle | EMILIANO NEVES VIALLE BARBARA MIROSKI DE OLIVEIRA PINTO JOANA BRETAS CABRAL RONDOM GUASQUE LUIZ ROBERTO GOMES VIALLE RENATO FEDATO BERALDO COMPARISON OF MONO AND POLY-AXIAL PEDICLE SCREW FIXATION IN THORACOLUMBAR A3/A4 FRACTURES Coluna/Columna Spinal Fractures Spinal Injuries Pedicle Screws Kyphosis |
| title | COMPARISON OF MONO AND POLY-AXIAL PEDICLE SCREW FIXATION IN THORACOLUMBAR A3/A4 FRACTURES |
| title_full | COMPARISON OF MONO AND POLY-AXIAL PEDICLE SCREW FIXATION IN THORACOLUMBAR A3/A4 FRACTURES |
| title_fullStr | COMPARISON OF MONO AND POLY-AXIAL PEDICLE SCREW FIXATION IN THORACOLUMBAR A3/A4 FRACTURES |
| title_full_unstemmed | COMPARISON OF MONO AND POLY-AXIAL PEDICLE SCREW FIXATION IN THORACOLUMBAR A3/A4 FRACTURES |
| title_short | COMPARISON OF MONO AND POLY-AXIAL PEDICLE SCREW FIXATION IN THORACOLUMBAR A3/A4 FRACTURES |
| title_sort | comparison of mono and poly axial pedicle screw fixation in thoracolumbar a3 a4 fractures |
| topic | Spinal Fractures Spinal Injuries Pedicle Screws Kyphosis |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1808-18512025000100800&lng=en&tlng=en |
| work_keys_str_mv | AT emilianonevesvialle comparisonofmonoandpolyaxialpediclescrewfixationinthoracolumbara3a4fractures AT barbaramiroskideoliveirapinto comparisonofmonoandpolyaxialpediclescrewfixationinthoracolumbara3a4fractures AT joanabretascabralrondomguasque comparisonofmonoandpolyaxialpediclescrewfixationinthoracolumbara3a4fractures AT luizrobertogomesvialle comparisonofmonoandpolyaxialpediclescrewfixationinthoracolumbara3a4fractures AT renatofedatoberaldo comparisonofmonoandpolyaxialpediclescrewfixationinthoracolumbara3a4fractures |