|Year : 2019 | Volume
| Issue : 1 | Page : 51-56
Is cast an option in the treatment of thoracolumbar vertebral fractures?
Alessandro Rava1, Federico Fusini1, Pasquale Cinnella2, Alessandro Massè1, Massimo Girardo2
1 Department of Orthopaedic and Traumatology, Orthopaedic and Trauma Centre, Città della Salute e della Scienza di Torino, University of Turin, Turin, Italy
2 Orthopaedic and Trauma Centre, Spine Surgery Unit, Città della Salute e della Scienza di Torino, University of Turin, Turin, Italy
|Date of Web Publication||9-Apr-2019|
Dr. Alessandro Rava
Department of Orthopaedic and Traumatology, Orthopaedic and Trauma Centre, Cittą della Salute e della Scienza di Torino, University of Turin, Via Zuretti 29, 10121, Turin
Source of Support: None, Conflict of Interest: None
| Abstract|| |
Background: Thoracolumbar vertebral fractures are common in high-energy trauma and often are associated to other concomitant injuries. Currently, brace and Closed Reduction and Casting (CRC) are the two conservative treatments proposed by literature. Despite CRC was widely used in the past, today brace is preferred. The aim of our study is to evaluate clinical and radiographic outcomes of thoracolumbar type A fractures, not associated with other injuries, treated with CRC.
Materials and Methods: We retrospectively evaluated all patients treated from 2008 to 2015, with a mean age of 26.69 years (range 15–45). All patients were affected by AO type A fracture: 26 type A1, 17 type A2, and 21 type A3. All patients were evaluated by X-ray, computed tomography, and magnetic resonance imaging. Radiological evaluations included vertebral kyphosis (VK), segmental kyphosis (SK), regional kyphosis (RK) angle, and vertebral ratio (VR) measures. Patients were clinically assessed through visual analog scale, Oswestry Disability Index, Roland–Morris Disability Questionnaire, and Short Form 36 Health Survey.
Results: Seventy-four patients (41 males and 33 females) were included in the study. At follow-up (mean 28.48 months ± 5.16), we found significant improvements in VK (P = 0.000013), SK (P = 0.000455), and RK (P = 0.000016). No significant differences were observed in VR (P = 0.26). Good clinical results were reported in patients in all scores and 90.7% of patients returned to work.
Conclusions: Closed reduction and casting is still a reliable treatment option in selected thoracolumbar fractures without spinal cord involvement. A correct fracture evaluation, patient compliance, and motivation are essentials.
Level of evidence: IV.
Keywords: Closed reduction and casting, conservative treatment, thoracolumbar junction, vertebral fractures
|How to cite this article:|
Rava A, Fusini F, Cinnella P, Massè A, Girardo M. Is cast an option in the treatment of thoracolumbar vertebral fractures?. J Craniovert Jun Spine 2019;10:51-6
|How to cite this URL:|
Rava A, Fusini F, Cinnella P, Massè A, Girardo M. Is cast an option in the treatment of thoracolumbar vertebral fractures?. J Craniovert Jun Spine [serial online] 2019 [cited 2022 Aug 14];10:51-6. Available from: https://www.jcvjs.com/text.asp?2019/10/1/51/255732
| Introduction|| |
Thoracolumbar junction (T10-L2) is the most common site of spine injury, more frequent than other segments. Talic et al. defined “prone to trauma” this region, due to the low mobility of this segment. AOSpine Type A comprise 66% of these fractures and “burst” fractures account for approximately 20%.,
Several treatments for type A fracture were proposed, especially in patients without neurologic impairments. Both surgical and conservative treatments are described in literature with good results.,, Conservative treatments comprehend bed rest, physiotherapy, spinal braces, and closed reduction associated to casting (CRC); however, in literature, there is no evidence about a better conservative treatment.
It is proved that nonsurgical strategies are not inferior to surgical ones about their cost-effectiveness.
Nowadays, there is a consensus that posttraumatic kyphosis may cause chronic low back pain probably derived from soft tissue surrounding the spinal deformity and biomechanical changings in neighboring spinal segments.,, According to the consensus, closed reduction and casting technique described by Boehler in his book in 1951 seems to be actual. This technique allows the reduction of fractures segments thanks to ligamentotaxis and casting can guarantee segments contentions till healing. The purpose of our retrospective study is to evaluate middle-long-term clinical and radiographic results of selected thoracolumbar type A fractures, treated with closed reduction and casting.
| Materials and Methods|| |
We retrospectively evaluated all patients treated in our spine surgery department with closed reduction and casting (CRC) from 2008 to 2015. Patients were included in the study according to the following inclusion criteria:
- Diagnosis of thoracolumbar vertebral fractures (T10-L2), not associated with other severe injuries or fractures
- Age between 15 and 45 years old at the time of trauma
- Only AOSpine Type A fracture
- Absence of posterior longitudinal ligament lesions verified with magnetic resonance imaging (MRI)
- Absence of neurological impairments
- Thoracolumbar Injury Classification and Severity Score (TLICS) ≤3
- Minimum of 2-year follow-up (FU).
For every patient, the diagnosis was made after evaluation of X-rays, computed tomography scans, and MRI.
Treatment consisted in closed fracture reduction on the Bell frame. This system uses ligamentotaxis derived by positioning the patient in physiological lordosis to obtain vertebral fracture reduction. No anesthesia was used during the procedure. When reduction was obtained, the patient was kept on the frame and a plaster cast was fabricated.
Patients were recovered in our spine surgery department for few days after procedure. During the hospital stay, patients were clinically controlled, especially for pain and eventual cast syndrome. Weight-bearing was not permitted for 40 days after procedure, and only bed rest was allowed. Parents and caregivers were instructed to log roll procedures for the right patient's management for hygiene and mobilization after the hospital discharge. The patient X-ray examinations were conducted after CRC, at 40–60–90 days, 6 months, and 1 year after trauma. Other radiological evaluations were made every year during the FU. After the first radiological evaluation at 40 days, the cast was removed and Jewett orthosis was prescribed to every patient till 90 days from trauma with a progressive weight-bearing. All patients underwent deep vein thrombosis (DVT) prophylaxis with low molecular weight heparin.
Vertebral kyphosis (VK), segmental kyphosis (SK), and regional kyphosis angle (RK) were calculated on X-ray. The ratio between posterior and anterior vertebral body called vertebral ratio (VR) was also calculated. Delta score was calculated as the difference between kyphosis (VK, SK, and RK) and VR at the time of trauma and at FU. Clinical evaluations were made with visual analog scale (VAS) scale, Oswestry Disability Index (ODI),, Roland-Morris Disability Questionnaire (RMQ), and Short Form 36 Health Survey (SF36). Time of hospitalization and time of return to work were also recorded. Two different operators, not involved in the study, performed radiological and clinical evaluation with the same radiological program (Synapse-Fujifilm). Mean value of the two calibrations was taken as valuable.
Clinical scores and radiological measures were reported as mean ± standard deviation (SD). Student's t-test was used to assess differences using SPSS software (IBM, Bologna, Italy) statistical. Level of significance was set at P < 0.05.
| Results|| |
Seventy-four patients were included in the study; 41 males (55.4%) and 33 females (44.6%).
The most common causes of trauma were road traffic accidents, resulting in 31 cases (42%), of those 5 (16%) patients were pedestrians. Falls were the second cause of fractures (28 cases, 38%), followed by sport-related trauma (15 cases, 20%).
Two patients (2.70%) requested cast removal during the first days after the procedure for intolerance and 8 patients (10.8%) were lost at FU. The final study population was composed by 64 patients, 39 males (61%) and 25 females (39%). Patients were aged from 15 to 45 years old (mean age 26.69 years ± 6.32). We collected 26 (40.6%) type A1, 17 (26.6%) type A2, and 21 (32.8%) type A3 vertebral fractures [Figure 1]. Twelve (18.75%) fractures affected T12, 42 (65.63%) affected L1, and 10 (15.62%) affected L2. FU ranged from 24 to 48 months (mean 28.48 months ± 5.16). TLICS of patients included in the study ranged from 1 to 2.
Demographic data were reported in [Table 1].
| Radiographic Results|| |
Results of VK, SK, RK, and VR are reported in [Table 2]. We can appreciate a mean improvement in all parameters. VK, SK, RK, and VR delta score were −3.69°Cobb ± 4.24°, −2.87°Cobb ± 3.08°, −3.87°Cobb ± 6.05°, and −0.17 ± 0.3, respectively. A significant improvement of deformity in VK (P = 0.000013), SK (P = 0.000455), and RK (P = 0.000016). No significant differences were observed for VR (P = 0.26) [Figure 2], [Figure 3], [Figure 4] and [Table 2].
|Table 2: Vertebral kyphosis, segmental kyphosis, regional kyphosis, and vertebral ratio values at trauma, after cast reduction and casting, and at follow-up|
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|Figure 2: CT scan of a 18-years-old male with type A3 L1 vertebral fracture in coronal (a) and sagittal plane (b). X-ray of the same fracture in lateral view (c)|
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|Figure 3: Anteroposterior (a) and lateral (b) X-ray of a 18-years-old male with type A3 L1 vertebral fracture after CRC confection|
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|Figure 4: A 18-years-old male with type A3 L1 vertebral fracture in anteroposterior (a) and lateral view (b) X-ray|
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| Clinical Results|| |
After CRC mean time of hospitalization was 3.75 ± 1.75 days. Only 1 patient remained for 10 days due to poor pain control. No cast syndrome occurred. At FU-VAS, ODI, RMQ, and SF36 were submitted to all patients. The collected data revealed good clinical results. Mean VAS reported by patients was 1.36 ± 1.26 (range 0–3). Other scores confirmed excellent results, with a mean ODI of 10.34% ± 0.05% and a mean RM of 1.70 ± 1.72. SF36 sections mean results were:
- Vitality 80.43 ± 10.43
- Physical functioning 90.32 ± 11.51
- Bodily pain 86 ± 14.4
- General health perceptions 81.01 ± 3.74
- Physical role functioning 86.67 ± 10.52
- Emotional role functioning 88.84 ± 16.09
- Social role functioning 78.73 ± 15.91
- Mental health 82.4 ± 15.66.
We reported no DVT, decubitus, urinary tract infection, or other complications during the treatment.
At the time of trauma, 43 (67.2%) patients were employed. Thirty-seven (86%) of employed patients returned to work at 6 months after trauma. At FU, 39 (90.7%) of them returned to work and 3 (6.9%) had to change their task with one with less physical involvement, while only 1 (2.3%) was still unemployed at FU.
| Discussion|| |
Radiographic examination revealed that the treatment we proposed can reach an excellent control of kyphosis deformity at 2-year FU. From the trauma time to CRC confectioning, VK, SK, and RK mean values reduced of 3.5°, 4°, and 6.99° Cobb, respectively. These results remained stable at FU and the delta score could explain better the radiographic results, as reported in [Table 2], while VR can explain mathematically the restoring of body height thank to reduction.
VR was maintained till the FU with a height gain of 12.3%.
A lot of treatments were proposed for thoracolumbar fractures,,,,,,, and the best treatment must be chosen taking in consideration: AO fractures classification, fracture dislocation, neurological status, patients' comorbidities, and compliance. There are several authors supporting conservative treatment with reduction, as well as those reporting excellent results with fracture reduction and stabilization.,,, Cochrane collaboration in a recent work of Abudou et al., defined contradictory and insufficient the evidence found in literature to define which one between surgical and nonsurgical treatment yields superior results, as already reported by van der Roer et al. In literature, many studies observed an association between kyphotic deformity and low back pain after treatment.,, Loss of correction seems to be the first complication of CRC and probably one of the main causes of recurrent back pain after vertebral fractures. Good reduction of kyphosis after CRC was reported by Tropiano et al., Wood et al., and Weninger et al.; they observed very good kyphosis reduction but a loss of correction at FU., The authors found a VK loss of 65%–90% and an RK loss of 86.4%–111%. In our study, we did not have cases of loss of reduction; a possible explanation could be related to our protocol. Weight-bearing was forbidden till the callus formation (40 days approximately). It is known that 80% of stresses pass through the anterior column of the spine, so we believe that weight-bearing during before the complete callus formation could displace the reduced fragments and promote kyphosis development. After this period, the reduction could be considered stable; cast could be removed and then replaced with a Jewett orthosis till complete bone healing. This protocol, to the best of our knowledge, differs from other described in literature.
We are aware that 1 month of complete bed resting may drive patients to some medical complications such as DVT and decubitus, cast syndrome, and urinary tract infection; otherwise, in our series, we have not observed them. However, it must be noted that patients included in our study are young, with good general status and no severe comorbidities.
Regarding pain and function-related outcomes, our findings suggest that CRC is a valuable choice. Our VAS (1.36) is comparable to that of Wood et al. and Bagga et al., ODI, SF-36, and RMQ are similar to those reported in literature.,, Comparing our results with the current literature, we can appreciate that CRC has no inferior performances in clinical results than other conservative treatment protocols, but it is important to underline a better control of deformity in medium-long FU.
Finally, our study took into consideration the return to work of patients. Wood et al. and Gnanenthiran et al., demonstrated, in long-term FU studies, that nonsurgically-treated patients were more engaged in full-time occupation when compared to surgically treated ones. Our results are in keeping with these authors confirming that our protocol can be feasible even for hard workers. 91% of our patients returned to their original work at FU, while 4 out of 43 patients (employed at the moment of trauma) did not return to their original working task and only 1 was not employed at the FU. Eighteen patients were hard workers and only 3 had to change their working task with one less engaging.
Several limitations to our study must be acknowledged. First of all, the number of patients was limited. We were not able to contact all patients treated, so we have lost at FU approximately 11% of them. The low number of patients, the retrospective nature of our analysis, and the lack of a control group, may influence the study results.
| Conclusions|| |
Closed reduction and cast treatment should be considered a reliable option as treatment in selected thoracolumbar fractures without spinal cord involvement.
A correct fracture evaluation, patient compliance, and motivation are essential in the choice of this kind of treatment.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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[Figure 1], [Figure 2], [Figure 3], [Figure 4]
[Table 1], [Table 2]
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