Evaluating rehabilitation following lumbar fusion surgery (REFS): study protocol for a randomised controlled trial

Projections From Surgical Use Models in Germany Suggest a Rising Number of Spinal Fusions in Patients 75 Years and Older Will Challenge Healthcare Systems Worldwide

BACKGROUND

Spinal fusion is a well-established procedure in the treatment of degenerative spinal diseases. Previous research shows that the use of this operative treatment has been growing in recent decades in industrialized countries and has become one of the most cost-intensive surgical procedures. It seems that in some countries such as Germany-with its large, industrialized, European population-this increase is mainly driven by demographic changes with low fertility rates, increasing life expectancy, and an aging population. Based on current projections, however, Germany faces a population trend that many other countries are likely to follow within a few decades. An increasingly shrinking and aging working population may eventually put the healthcare system under enormous pressure, with greater demands for spinal fusions and associated higher costs. Thus, we aimed to provide reliable projections regarding the future demand for posterior spinal fusion procedures including age- and gender-related trends up to 2060, which will be necessary for future resource planning and possible improvements in actual treatment strategies.

QUESTIONS/PURPOSES

(1) How is the use of posterior spinal fusions in Germany expected to change from 2019 through 2060, if currents trends continue? (2) How is the use of posterior spinal fusions in Germany expected to change depending on patients' age and gender during this time period?

METHODS

Comprehensive nationwide data provided by the Federal Statistical Office, the official institution for documenting all data on operations and procedures performed in Germany, were used to quantify posterior spinal fusion rates as a function of calendar year, age, and gender. Because there is a lack of evidence regarding future trends in the use of posterior spinal fusions, an autoregressive integrated moving average model on historical procedure rates from 2005 to 2019 in relation to official population projections from 2020 to 2060 was chosen to forecast future absolute numbers and incidence rates of this procedure in Germany. Long-term forecasting is more prone to unexpected disruptions than forecasting over short-term periods; however, longer spans facilitate estimates of how trends may challenge future healthcare systems if those trends continue, and thus are useful for research and planning.

RESULTS

The incidence rate of posterior spinal fusion was projected to increase by approximately 83% (95% CI 28% to 139%) to 102% per 100,000 inhabitants (95% CI 71% to 133%) in 2060, with a 1.3-fold higher rate of women undergoing surgery in terms of absolute numbers. The highest increase identified by the model occurred in patients 75 years and older with 38,974 (95% CI 27,294 to 50,653) posterior spinal fusions in 2060, compared with 14,657 in 2019. This trend applied for both women and men, with a 246% (95% CI 138% to 355%) increase in the total number of posterior spinal fusions for women 75 years and older and a 296% (95% CI 222% to 370%) increase for men 75 years and older. At the same time, posterior spinal fusions in all age groups younger than 55 years were projected to follow a constant or even negative trend up to 2060.

CONCLUSION

Our findings suggest that increasing use of posterior spinal fusion, particularly in patients 75 years and older, will challenge healthcare systems worldwide if current trends persist. This study may serve as a model for many other industrialized countries facing similar demographic and procedure-specific developments in the future. This emphasizes the need to focus on frailty research as well as appropriate financial and human resource management. Effective perioperative medical management, multidisciplinary treatment, and interinstitutional protocols are warranted, especially in older patients as we attempt to manage these trends in the future.

LEVEL OF EVIDENCE

Level III, economic and decision analysis.

A qualitative evaluation of participants experiences of living with back pain, lumbar fusion surgery, and post-operative rehabilitation

Background

The use of lumbar fusion surgery is increasing in developed economies. High levels of patient dissatisfaction are reported post-operatively. To address this need, we developed a theoretically informed rehabilitation programme for use following lumbar fusion surgery (the REFS programme). We conducted a mixed methods randomised controlled feasibility study (REFS v ‘usual care’). The numerical and feasibility outcomes are reported separately. The current qualitative study was ‘nested’ within the main feasibility study to explore participants’ experiences before and after lumbar fusion surgery including the impact of rehabilitation content. This facilitated a deeper understanding of potential mechanisms of action, for theoretical and programme refinement.

Methods

A purposive sample (n = 10 ‘usual care’, n = 10 REFS) was identified from the main feasibility study cohort. Individual semi-structured interviews were conducted post-operatively (median 8 months, range 5–11). Interview data were transcribed verbatim, coded, and analysed thematically.

Results

Three themes were constructed: the breadth and severity of impact associated with a chronic lumbar disorder was summarised in theme 1, ‘Ever-decreasing circles; living with a chronic lumbar disorder’. Theme 2, ‘What have I done? Reflections on recovery from lumbar fusion surgery’, illustrated participants post-operative helplessness, which was associated with worsening mental health, problematic use of opioids, fear related to the instillation of metalware, and the important mitigating effect of informal social support. Theme 3 ‘Rehabilitation experiences’ identified critical rehabilitation programme content including exercise, a shared rehabilitation experience, the opportunity for vicarious learning, and professional expertise.

Conclusions

To enhance patient benefit future REFS programme iterations should consider reinforcement of the identified valued programme content. Additional content should be considered to mitigate post-operative fear, which frequently aligned with the instillation of metalware into the spine. Participant’s perceptions regarding the necessity of lumbar fusion surgery has potential implications for the surgical consent process.

Trial registration

Study registration; ISRCTN60891364, date registered 10/7/2014.

Supplementary Information

The online version contains supplementary material available at 10.1186/s40814-022-01050-y.

How manual therapy provided a gateway to a biopsychosocial management approach in an adult with chronic post-surgical low back pain: a case report

BACKGROUND

The management of patients with chronic post-surgical low back pain can be very challenging to surgeons, physiotherapists, and patients alike. Subsequent surgery is often associated with post-operative complications and even lower levels of success than the initial spinal surgery. Physiotherapy is often recommended as the first-line management, however, debate exists amongst physiotherapists regarding the optimal treatment strategy. A key focus of this debate has been the use of manual therapy in chronic pain populations, leading clinicians to reevaluate its use.

CASE DESCRIPTION

A 44-year-old female presented to physiotherapy with a 13-year history of persistent pain, having had a spinal fusion 12 years prior, following a skiing accident. Her primary complaints were pain and decreased self-efficacy. The patient was treated with a 12-week multimodal approach consisting of manual therapy, exercise rehabilitation, and pain neuroscience education.

OUTCOMES

The patient had a significant reduction in the Numerical Pain Rating Scale (NPRS), the Oswestry Disability Index (ODI) and the Fear Avoidance Belief Questionnaire Physical Activity Subscale (FABQ-PA) scores following the intervention. She returned to running and cycling, reporting that pain was something she would 'work with instead of against'.

DISCUSSION

This case study suggests that manual therapy can enhance an individualized biopsychosocial approach in the physiotherapy management of a patient with chronic post-surgical low back pain. Further research is needed to evaluate optimal intervention dosages and effective strategies in the management of patients with chronic low back pain following spinal surgery.

Surgical management of a complex case of Charcot arthropathy of the spine: a case report

Introduction

The authors present a case of a 55-year-old male with T10 complete paraplegia diagnosed with Charcot arthropathy of the spine (CAS).

Case presentation

He presented to an outside institution with vomiting and productive cough with subsequent computed tomography (CT) and MRI imaging revealing L5 osteomyelitis and a paraspinal abscess. Given the patient's inability to remain in good posture in his wheelchair he underwent a multilevel vertebrectomy and thoracolumbar fusion. Due to multiple co-morbidities, surgical recovery was complex, ultimately requiring revision circumferential fixation.

Discussion

CAS is an uncommon, long-term complication of traumatic spinal cord injury (SCI). Surgical management is often complex and associated with significant complications. Currently, a consensus on CAS prevention, specific surgical fixation techniques and post-surgical nursing care management is lacking. In this case report we provide our experience in the management of a complex case of CAS to aid in decision making for future neurosurgeons who encounter this sequela of traumatic SCI.

Rehabilitation Following Lumbar Fusion Surgery: A Systematic Review and Meta-Analysis

STUDY DESIGN

A systematic review with meta-analysis.

OBJECTIVE

The aim of this study was to conduct a systematic review and meta-analysis of current evidence evaluating the effectiveness of rehabilitation following lumbar fusion surgery (LFS).

SUMMARY OF BACKGROUND DATA

LFS for the management of lower back pain, with(out) neurogenic leg pain, is increasing as the population ages. Clinical outcomes commonly lag behind surgical outcomes and 40% of patients experience significant back-related disability 12 months after LFS. Identifying rehabilitation strategies to improve function and quality of life following LFS is important.

METHODS

A systematic review of databases were searched, including MEDLINE, CINAHL, and grey literature. Studies identified were screened for inclusion by title and abstract. Full text of eligible/potentially eligible studies was evaluated against predetermined eligibility criteria. Included studies were subjected to critical appraisal and risk of bias evaluation. The GRADE approach to quality of evidence was utilized. A meta-analysis comparing usual care with "complex rehabilitation," comprising exercise and cognitive behavioral therapy, for outcomes relating to pain, disability, fear of movement, and mental health was conducted at short and longer term (<3 and >12 months postsurgery) time points.

RESULTS

Three studies were identified for the systematic review and 2 included in the meta-analysis (n = 237, female = 62%, mean age = 55). Low-quality evidence suggests that "complex rehabilitation" provides short-term improvement in disability [effect size, -0.85, 95% confidence interval (95% CI), -1.41 to -0.29] and fear avoidance behavior (-1.07, 95% CI -1.33, -0.80), compared with usual care. Low-quality evidence exists favoring "complex rehabilitation" over usual care for longer term disability (-0.84, 95% CI -1.11 to -0.58) and fear avoidance behavior (-1.40, 95% CI -1.69 to -1.12).

CONCLUSIONS

A small number of low-quality studies suggest that "complex rehabilitation" reduces short and long-term disability and fear avoidance behavior following LFS. More, high-quality research is required to confirm the effectiveness of "complex rehabilitation" programs.