Purpose: We compared two techniques for thoracic apical derotation; one using conventional reduction screws (Single-Innie-SI) and one requiring special derotation screws that can be converted to monoaxial screws to enhance dorotation (Dual-Innie-DI) for coronal and sagittal correction and.
Methods: A total of 200 patients with thoracic AIS have been included. In the SI-Group (n = 127) the convex rod was applied first. Vertebral derotation was done by translation to the concave rod with the convex rod being in place and center of rotation (COR). In the DI-Group (n = 73) correction started with translation on the concave side as well but now followed by derotation around the concave rod using the DI-mechanism.
Results: The mean rotation according to Raimondi and coronal correction was not sig. affected (72 (± 12) % in the SI-Group versus 68 (± 15) % in the DI-Group), even when flexibility was respected (Cincinnati Correction Index CCI was 2.9 (± 4.9) versus 3.5 (± 4.4). (p < 0.01). The gain of kyphosis was sig greater (2.7°) in the SI-group, but not clinical relevant.
Conclusion: The use of DI screws for apical derotation did not provide an advantage for coronal correction or derotation in thoracic curves. Presumably after translation is performed in the DI-group, there was too much tension and friction in the construct impeding further derotation. Simultaneous translation and derotation in the SI-group, with the convex rod being the COR, yielded similar correction with better kyphosis and was faster and more economic.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00586-022-07377-7 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Correction of Femoral Torsional Deformities by Rotational Guided Growth.
J Clin Med
December 2024
Pediatric Orthopedics, Hadassah-Hebrew University Medical Center, Jerusalem 9112001, Israel.
: Femoral torsional malalignment is a common cause of in-toeing and out-toeing in children, often leading to gait disturbances, functional limitations, and increased risk of falls. Traditionally, osteotomy was the only surgical option for correction. A minimally invasive technique known as rotational guided growth (RGG) has recently been introduced to address these malalignments.
View Article and Find Full Text PDFReactivating Sleeping Intramedullary Nail in a 16-Year-Old Female with Polyostotic Fibrous Dysplasia: A Case Report on Complications and Potential Solutions.
Life (Basel)
November 2024
Pediatric Orthopedics and Traumatology, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy.
Background: Fibrous dysplasia (FD) is a rare condition in which normal spongy and cortical bone is replaced by non-neoplastic fibrous tissue, leading to weakened bone matrix and increased risk of pathological fractures and deformities. Treating these deformities poses a significant challenge for surgeons. While various cases of surgical stabilization and limb lengthening using intramedullary nails have been reported, there is limited evidence on the use of Motorized Intramedullary Limb-Lengthening Nails (MILLNs) in FD patients.
View Article and Find Full Text PDFDerotational Corrective Osteotomy for Pediatric Forearm Malunion: A Case Report.
Cureus
October 2024
Orthopedics and Traumatology, Tâmega e Sousa Hospital Centre, Porto, PRT.
In this case report, we describe an eight-year-old boy with both-bone forearm diaphyseal fracture that was treated conservatively after closed reduction with manipulation. Nine months after the injury, he returned to consultation, presenting a rotational deformity of the forearm and 20° of pronosupination limitation. He was submitted to corrective osteotomies, using three-dimensional (3D) planning and templating, using a double approach, and fixation with a four screw holes plate in each osteotomy.
View Article and Find Full Text PDFTreatment of rotational tibial malunion after minimal invasive plate osteosynthesis (MIPO): Corrective osteotomy with original plate retention (PR-Osteotomy).
Injury
September 2024
Hip Department (CAD) Gaetano Pini-CTO Orthopedic Institute, University of Milan, P.za Cardinal Ferrari 1, 20122, Milano, Italy.
Background And Purpose: Residual axial and rotational deformities in tibial shaft fracture, after minimally invasive osteosynthesis (MIO) treatment, are widely described in literature. Nevertheless, there is still a lack of evidence about the malunion treatment strategies and results. The aim of our study is to present an innovative technique for tibial shaft malunion: a derotational proximal tibial osteotomy without removing the original plate (Plate-Retaining-Osteotomy: PR-Osteotomy).
View Article and Find Full Text PDFRisk Factors for Early Implant Failure in Geriatric Intertrochanteric Fractures Treated with Twin Interlocking Derotation and Compression Screw Cephalomedullary Nail (InterTAN).
Acta Chir Orthop Traumatol Cech
November 2024
Department of Orthopaedics and Traumatology, Istanbul University Istanbul Faculty of Medicine, Istanbul, Turkey.
Purpose Of The Study: Intertrochanteric hip fractures in elderly patients are a significant cause of morbidity and mortality, with increasing incidence due to the aging population. Despite advancements in intramedullary nailing (IMN) technology, fixation failure remains a concern. This study aims to evaluate pre-and postoperative radiographic risk factors for varus collapse in geriatric intertrochanteric fractures treated with twin interlocking derotation and compression screw cephalomedullary nail (InterTAN, Smith & Nephew).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!