Interbody cages have been created to improve fusion by restoring disc height and increasing spinal segment stability. They are frequently found to be insufficient as a stand-alone device. It’s unclear how much primary stability is necessary for fusion to take place. We have frequently achieved spinal fusion using a Stand Alone Cagedevice in numerous goat investigations. However, there is a scarcity of information on the mechanical circumstances under which these fusions were achieved. Inflexion/extension, axial torsion (left/right), anterior/posterior shear, and left/right lateral bending, 48 native lumbar spine segments were mechanically examined. The mechanical tests were then redone after all segments were fitted with a titanium cage utilising the same surgical approach as in in-vivo investigations. In either of the loading directions, there was no increase in stiffness.
The stand-alone anterior cage implant is made of PEEK, a thermoplastic solution that is biocompatible and does not generate artefacts. In-vivo applications are fully compatible with MRI. Alternatives to the cage system include rigid, bladed, expandable, and bladed expandable options. It has a large height measuring range of 4 mm to 8 mm with 1 mm increments. 12x14mm and 14x16mm are the external dimension ranges. Has a specific threaded construction for enhanced application area stability. To ensure maximal fusion, the cage includes a broad graft application space. The effective and durable application sets are developed and manufactured to aid in a surgical application while also providing patient comfort.
Problems and Methods
Stand-alone cage aided anterior cervical discectomy and fusion (ACDF) has problems such as cage subsidence and kyphosis. For degenerative cervical spine illnesses, we provide our clinical results on ACDF, comparing it to stand-alone cages and the cervical plate system. This research looked at patients with the degenerative cervical disease who were identified and treated at Konyang University Hospital between January 2004 and December 2014. Patients who underwent a single level ACDF procedure were chosen. Before and after surgery, patients rated their discomfort on a visual analogue scale. Subsidence was defined as a 3-mm decrease in segmental height, and cervical kyphosis was defined as a 5-degree advancement at 12 months following surgery compared to the immediate postoperative period.
Outcomes of the examination
For this trial, a total of 81 participants were recruited. The cervical plate group consisted of 45 patients, whereas the stand-alone cage group consisted of the remaining patients. Statistically, there was no difference between the two groups in terms of pain. Segmental subsidence was observed in 7 patients (15.6%) in the plate-assisted cervical fusion group but was observed in 13 patients (36.1%) in stand-alone cage group. Among the patients undergoing plate-assisted cervical fusion, 4 (8.9%) had segmental kyphosis, while ten (27.8%) had the condition in the stand-alone cage group. The two groups had the same level of pain. In contrast, the stand-alone group had a higher incidence rate of segmental subsidence and cervical kyphosis than the plate-assisted group.
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When compared to the native section, cage implantation in a lumbar spinal segment did not increase immediate postoperative stability. This is due to both the annular injury and the following decrease of segment height after cage insertion. In vivo investigations utilising this goat model, however, have consistently shown fusion. This suggests that strong primary segment stability is not necessary for fusion, or that the spinal segment’s measured range of motion in vitro does not occur at these magnitudes in vivo.
In ACDF, the usage of stand-alone cervical interbody cages has grown in popularity. In 2-level ACDF, using a cage and plate build leads to a quicker fusion time and a lower subsidence rate than using a cage alone. MJ Surgical has the finest Stand Alone Cage on the market. Surgical instruments of excellent quality are accessible all around the world from us. You can get them by clicking on this link: www.mjsurgical.com, if you want to know more about our services regarding manufacturing and delivering.