A rationale for the treatment algorithm of failed back surgery syndrome

Artificial lamina after laminectomy: Progress, applications, and future perspectives

In clinical practice, laminectomy is a commonly used procedure for spinal decompression in patients suffering from spinal disorders such as ossification of ligamentum flavum, lumbar stenosis, severe spinal fracture, and intraspinal tumors. However, the loss of posterior column bony support, the extensive proliferation of fibroblasts and scar formation after laminectomy, and other complications (such as postoperative epidural fibrosis and iatrogenic instability) may cause new symptoms requiring revision surgery. Implantation of an artificial lamina prosthesis is one of the most important methods to avoid post-laminectomy complications. Artificial lamina is a type of synthetic lamina tissue made of various materials and shapes designed to replace the resected autologous lamina. Artificial laminae can provide a barrier between the dural sac and posterior soft tissues to prevent postoperative epidural fibrosis and paravertebral muscle compression and provide mechanical support to maintain spinal alignment. In this paper, we briefly review the complications of laminectomy and the necessity of artificial lamina, then we review various artificial laminae from clinical practice and laboratory research perspectives. Based on a combination of additive manufacturing technology and finite element analysis for spine surgery, we propose a new designing perspective of artificial lamina for potential use in clinical practice.

Systematic Nursing Interventions Combined with Continuity of Care in Patients with a Spinal Fracture Complicated with a Spinal Cord Injury and Its Effect on Recovery and Satisfaction

Objective. The aim of this study is to examine the application value of systematic nursing interventions combined with continuity of care in cases with a spinal fracture complicated with a spinal cord injury and its effect on recovery and satisfaction. Methods. We identified ninety cases with a spinal fracture complicated with a spinal cord injury who were admitted to local hospital from May 2019 to May 2021 as research subjects and assigned them into an experimental group (systematic nursing combined with continuity of care, n = 45) and a control group (conventional nursing, n = 45) according to their admission order. The level of life of all groups between intervention was evaluated with reference to the Generic Quality of Life Inventory-74 (GQOLI-74) Rating Scale. The Hospital Anxiety and Depression (HAD) scale was used to assess the emotional status of patients before and after intervention. The complication rates, nursing outcomes, nursing satisfaction, and rehabilitation outcomes of all cases were calculated. Results. The GQOLI-74 score of the experimental group was higher than that of another group ( $P<0.05$ ). Lower HAD scores of experimental group were observed than that of another group ( $P<0.05$ ). The experimental group obtained remarkably higher nursing effective rates and higher nursing satisfaction than another group ( $P<0.05$ ). Rehabilitation outcome of the experimental group outperformed that another group ( $P<0.05$ ). Conclusion. The use of systematic nursing intervention combined with continuity of care for cases with spinal fracture complicated with a spinal cord injury can enhance the nursing effect, effectively relieve cases’ psychological pressure, improve patients’ level of life and nursing satisfaction, and contribute to the maintenance of a good nurse-patient relationship, which merits clinical promotion.

Six Revision Surgeries for Massive Epidural Fibrosis with Recurrent Pain and Weakness in the Left Lower Extremity

Epidural fibrosis is a common cause of pain after lumbar surgeries. There are no previous reports documenting profound limb weakness associated with epidural fibrosis. A 43-year-old woman uneventfully underwent microscopic discectomy. However, six additional surgeries were needed due to recurrent pain and weakness episodes, several days after the surgery. Operative findings were severe epidural fibrosis around the thecal sac and nerve roots. Epidural fibrosis excision did not prevent recurrent fibrosis; therefore, we performed a lordotic fusion with posterior column shortening to reduce neural tension and nerve-root stretching. Eventually, she became free from recurrent episodes of deteriorations and repetitive surgeries.

Optimizing the Management and Outcomes of Failed Back Surgery Syndrome: A Proposal of a Standardized Multidisciplinary Team Care Pathway

Failed back surgery syndrome (FBSS) is a major, worldwide health problem that generates considerable expense for healthcare systems. A number of controversial issues concerning the management of FBSS are regularly debated, but no clear consensus has been reached. This pitfall is the result of lack of a standardized care pathway due to insufficient characterization of underlying pathophysiological mechanisms, which are essential to identify in order to offer appropriate treatment, and the paucity of evidence of treatment outcomes. In an attempt to address the challenges and barriers in the clinical management of FBSS, an international panel of physicians with a special interest in FBSS established the Chronic Back and Leg Pain (CBLP) Network with the primary intention to provide recommendations through consensus on how to optimize outcomes. In the first of a series of two papers, a definition of FBSS was delineated with specification of criteria for patient assessment and identification of appropriate evaluation tools in order to choose the right treatment options. In this second paper, we present a proposal of a standardized care pathway aiming to guide clinicians in their decision-making on how to optimize their management of FBSS patients. The utilization of a multidisciplinary approach is emphasized to ensure that care is provided in a uniform manner to reduce variation in practice and improve patient outcomes.

[SCS as a treatment option for failed back surgery syndrome]

Unfortunately, 10-40 % of patients still experience pain after spinal surgery. There are many reasons for the patients' complaints. If no identifiable cause, such as a recurrent disc herniation, is visible, this is referred to as failed back surgery syndrome. However, this definition includes a variety of possible underlying causes of the pain, which result in just as many different therapeutic approaches. In addition to pharmacological, behavioral and physical therapy, also neuromodulation techniques can be offered; the best known method is spinal cord stimulation (SCS). The following article describes evidence-based studies with regard to the beneficial treatment of failed back surgery syndrome with conventional tonic SCS and new developments in spinal cord stimulation addressing the treatment of chronic refractory back pain.

Comparison of effectiveness of different exercise programs in treatment of failed back surgery syndrome: A randomized controlled trial

BACKGROUND

Failed back surgery syndrome (FBSS) is a condition characterized by persistent pain following back surgeries.

OBJECTIVE

To determine the effects of different exercises programs in FBSS.

METHODS

A Single-blind, randomized, controlled trial designed. One hundred participants with failed back surgery syndrome were randomly assigned to three different exercises groups (Isokinetic, Dynamic lumbar stabilization (DLS), and home exercises (HE) groups) and a control group. Patients were evaluated before and after 8-week exercise program and follow-ups at the 3rd and 6th months after the exercise program. Finger-floor distance and lumbar Schober for lumbar mobility, visual analog scale (VAS) for pain, modified Oswestry disability index, Beck depression inventory, fear-avoidance attitudes survey, and progressive-isoinertial weight lifting test were used as follow-up parameters. Lumbar muscle strength was assessed with the isokinetic dynamometer.

RESULTS

VAS levels were decreased from 67.7 to 22.8 in isokinetic and from 68.7 to 25.0 in DLS and from 64.6 to 47.1 in HE groups at the end of the program (p< 0.05). Also, all of other follow-up parameters of the isokinetic and DLS exercise groups viewed significant improvements compared to the control group.

CONCLUSIONS

According to our results either isokinetic or DLS exercises are more effective in FBSS patients.

Failed back surgery syndrome: a suggested algorithm of care

Failed back surgery syndrome (FBSS) is a complex condition which can be very difficult to treat. In this article, we propose a pragmatic algorithm for the management of the syndrome. The management of this condition should include a comprehensive initial assessment to rule out treatable cause, pharmacological optimisation, psychological techniques and neuromodulation. There is good evidence to support early application of conventional spinal cord stimulation for FBSS patients suffering from predominant buttock and leg pain. Emerging techniques in neuromodulation such as high-frequency spinal cord stimulation, peripheral nerve field stimulation and dorsal root ganglion stimulation hold promise for the future, but long-term outcome regarding efficacy and safety is not yet established. Intrathecal drug delivery systems should also be considered in those who are unsuitable or unresponsive to neuromodulation and still warrant further treatment. However, the long-term outcome may not be as good as with other treatments mentioned above.

Comparison of two methods of epidural steroid injection in the treatment of recurrent lumbar disc herniation

Study Design

Prospective study.

Purpose

We compared the effects of two methods of epidural steroid injection in patients with recurrent disc herniation.

Overview of Literature

To our knowledge, there is no previous report of such a comparison in these patients.

Methods

The study was performed with 30 patients with relapsed lumbar disc herniation whose pain was not relieved by conservative remedies. The patients were divided into two groups, each of 15 patients, and entered the study for caudal or transforaminal injections. The degree of pain, ability to stand and walk, and the Prolo function score were evaluated in both groups before the injection and 2 months and 6 months after the injection.

Results

The degrees of pain reduction in the caudal injection group in the second and sixth months were 0.6 and 1.63, respectively, and in the transforaminal injection group were 1.33 and 1.56, respectively. The difference between the two methods was not statistically significant. Similarly, no other evaluated criterion showed a significant difference between the methods.

Conclusions

In the current study, the caudal and transforaminal steroid injection methods showed similar outcomes in the treatment of relapsed lumbar disc herniation. However, more detailed patient categorizing may help in finding possible subgroups with differences.

Long term intrathecal infusion of opiates for treatment of failed back surgery syndrome

Failed Back Surgery Syndrome (FBSS) is a multidimensional painful condition and its treatment remains a challenge for the surgeons. Prolonged intrathecal infusion of opiates for treatment of noncancer pain also remains a controversial issue. The authors present a prospective study about the long-term treatment of 30 patients with nonmalignant pain treated with intrathecal infusion of morphine from February, 1996 to May, 2004. Self-administration pumps were implanted in 18 patients and constant-flow pumps in 12. The mean intensity of pain reduced from 9.5 to 4.6 according to the visual analogue scale (p < 0.001); the mean daily dose of morphine necessary for pain control became constant after the sixth month of treatment. No difference was observed in the results between patients treated with bolus or constant infusion. Side effects were more frequent at the beginning and became tolerable after the first month of treatment. There was improvement of the quality of life measured by SF-36 (30.8-49.6) and in all dimensions of the Treatment of Pain Survey, except for working capacity. The follow-up period ranged from 18 to 98 months (mean = 46.7 months). It was concluded that intrathecal infusion of morphine is a useful and safe tool for long-term treatment of chronic nonmalignant pain.

Analgesic efficacy of oral gabapentin added to standard epidural corticosteroids in patients with failed back surgery

Objective

Failed back surgery syndrome is characterized by the presence of intractable pain and varying degrees of functional incapacity after lumbar spine surgery. Because the mechanisms that cause pain are variable, treatment of this syndrome is quite difficult, and one of the most common methods that is used for treatment nowadays is epidural injection. This research evaluates the analgesic efficacy of addition of oral gabapentin treatment to epidural corticosteroid application in patients with failed back surgery syndromes.

Methods

Forty-two patients, including 23 females and 19 males, with failed back surgery syndrome who had been previously operated on at least twice due to lumbar disc herniation were randomly divided into two groups. Following epidural application of a single dose of methylprednisolone in the first group of patients (Group K), an oral medical treatment containing naproxen sodium, tizanidine, and vitamin B and C complex, was devised to be applied for one month. For the second group, oral gabapentin was added to the same treatment regime (Group G). Pain levels were evaluated by a visual analog scale for straight leg raise before, during, and after treatment, as well as in the first and third months.

Results

There was no demographically significant difference between the patients (P > 0.05). After the beginning of treatment, it was observed that the pain level in Group G patients regressed earlier and that it progressed at a significantly lower level (both in the first and third month controls).

Conclusion

It was concluded that addition of oral gabapentin to epidural corticosteroid application in patients with failed back surgery syndromes was effective in ameliorating pain at an early stage without significant side effects.

Interventional pain management: when/what therapies are best for low back pain

PURPOSE OF REVIEW

The aim of this article is to inform an interested audience on novel minimally invasive and percutaneous interventional options for reduction of lower back pain.

RECENT FINDINGS

Numerous percutaneous and minimally invasive techniques for treatment of lower back pain were introduced recently. To accumulate sufficient clinical evidence in order to either dismiss or accept the new treatment modalities requires years of delay. Presented here are novel percutaneous procedures to treat discogenic pain, radiculopathies, lumbar facet syndrome, painful compressive vertebral fractures, myofascial pain and postlaminectomy syndrome. Data on efficacy of those procedures available from limited case series reports, retrospective studies and a few prospective trials are reviewed.

SUMMARY

There is a wide variety of techniques introduced recently in pain management of the lower back. Some of those procedures may serve as a definite treatment; others may significantly enhance or facilitate conservative management. Careful selection of the patients may significantly improve the success rates of these procedures.

The cost effectiveness of spinal cord stimulation in the treatment of pain: a systematic review of the literature

In this systematic review, we identified and evaluated studies of the cost effectiveness of spinal cord stimulation (SCS) for the treatment of chronic pain. Published reports were identified from a systematic search of a number of general medical electronic databases (Medline, CINAHL, and EMBASE), and specialist economic databases (NHS Centre for Reviews and Dissemination Economic Evaluation Database, and Health Economics Evaluation Database). Reference lists of retrieved reports were also searched, and contact was made with experts in the field. Of the 99 abstracts identified, 14 studies were considered to meet the inclusion criteria of the review. We found that across a range of medical indications, the initial healthcare acquisition costs of SCS implantation are consistently offset by a reduction in post-implant healthcare resource demand and costs. Further research is required to formally examine the cost effectiveness of SCS.

Evaluating the complex chronic pain patient

The evaluation of the complex chronic pain patient should be different than for the patient with a simple pain problem. The former requires a team approach. It is important that the neurosurgeon contemplating a pain-relieving operation get the best information that is likely to have an impact on outcome. This should include the following: 1. Some way to extract the appropriate information contained in the patient's medical records. 2. Physical factors that have a negative impact on prognosis. 3. Psychologic information, including return-to-work decisions, medication use issues, meaning of prior successes, negative environmental factors, codependency issues, secondary gains and their impact, presence of pain games, negatively acting financial considerations, impact of depression, presence of poor role models, impact of pain on general functioning, and the patient's future plans. Consider that just like a successful operation is a symphony of relatively simple harmonious parts, so, too, is the assessment of the complex chronic pain patient. The complexity of the patient and her or his predicament should not impair your ability to understand her or his real needs. The appropriate assessment of the patient requires that issues other than the pain itself be factored into the decisions about interventions. In the end, it is not appropriate to suggest afterward that psychosocial factors were the major cause for a poor result when nothing had been done about the same factors that had been present before the procedure.