Comparison of Costs and Postoperative Outcomes between Vertebroplasty and Kyphoplasty for Osteoporotic Vertebral Compression Fractures: Analysis from a State-Level Outpatient Database

Methodology of economic evaluations in spine surgery: a systematic review and qualitative assessment

OBJECTIVES

The present study is a systematic review conducted as part of a methodological approach to develop evidence-based recommendations for economic evaluations in spine surgery. The aim of this systematic review is to evaluate the methodology and quality of currently available clinical cost-effectiveness studies in spine surgery.

STUDY DESIGN

Systematic literature review.

DATA SOURCES

PubMed, Web of Science, Embase, Cochrane, Cumulative Index to Nursing and Allied Health Literature, EconLit and The National Institute for Health Research Economic Evaluation Database were searched through 8 December 2022.

ELIGIBILITY CRITERIA FOR SELECTING STUDIES

Studies were included if they met all of the following eligibility criteria: (1) spine surgery, (2) the study cost-effectiveness and (3) clinical study. Model-based studies were excluded.

DATA EXTRACTION AND SYNTHESIS

The following data items were extracted and evaluated: pathology, number of participants, intervention(s), year, country, study design, time horizon, comparator(s), utility measurement, effectivity measurement, costs measured, perspective, main result and study quality.

RESULTS

130 economic evaluations were included. Seventy-four of these studies were retrospective studies. The majority of the studies had a time horizon shorter than 2 years. Utility measures varied between the EuroQol 5 dimensions and variations of the Short-Form Health Survey. Effect measures varied widely between Visual Analogue Scale for pain, Neck Disability Index, Oswestry Disability Index, reoperation rates and adverse events. All studies included direct costs from a healthcare perspective. Indirect costs were included in 47 studies. Total Consensus Health Economic Criteria scores ranged from 2 to 18, with a mean score of 12.0 over all 130 studies.

CONCLUSIONS

The comparability of economic evaluations in spine surgery is extremely low due to different study designs, follow-up duration and outcome measurements such as utility, effectiveness and costs. This illustrates the need for uniformity in conducting and reporting economic evaluations in spine surgery.

Posterior Midline Interspinal Fixation (PMIF) to Treat Persistent Severe Pain Due to Severe Compression Fracture of Thoracic Vertebral Body: A Case Report

Generally, severe persistent pain due to compression fractures of the lumbar and thoracic vertebral bodies in the elderly, that fail conservative measures are treated with vertebroplasty or kyphoplasty. However, in the case reported in this paper, the compression fracture was so severe, that accurate bone needle placement into the vertebral body was felt to be difficult. In addition, there was a high risk of extravasation of the cement into the surrounding structures or blow-up of the lateral wall of the vertebral body. Therefore, a simple operation of posterior midline interspinal fixation (PMIF) was performed. The patient was a 91-year-old lady with severe pain in the mid-thoracic spine due to a severe compression fracture of the seventh thoracic vertebral body that was totally flattened in its anterior part. The patient was neurologically intact. However, she had difficulty walking, because the pain was very severe in an upright position. She was treated with a back brace and oxycodone for six weeks without any benefit. Because she was a poor candidate for vertebroplasty or kyphoplasty, a PMIF system was implanted. Postoperatively, within two weeks, her pain score dropped from 9/10 to 0/10; and from two months onwards she was completely free of pain medications until her death from an unrelated cause, 18 months after the operation. This is the first reported case of PMIF for the treatment of pain due to vertebral body compression fracture in the elderly. PMIF is a simple minimally invasive procedure without compromising the facet or any bony structure. The risk of severe complications, therefore, is remote. The success in this single case, therefore, begs for further exploration of this method in the treatment of compression fractures in the elderly.

Effects of transitional care based on the social support theory for older patients with osteoporotic vertebral compression fractures: A quasi-experimental trial

OBJECTIVES

This study aimed to investigate the effects of transitional care (TC) programs on the health outcomes of discharged older patients with osteoporotic vertebral compression fractures (OVCFs).

METHODS

A total of 160 older patients were recruited from two campuses of a public teaching hospital in China. Patients were grouped according to the campus to which they were admitted. The TC programs commenced one day before discharge and lasted 6 months after discharge. Repeated-measures analysis of variance was used to analyse the effects of the TC programs.

RESULTS

The TC programs improved the discharge of older patients with OVCF in their activities of daily living (ADLs), pain levels and social support, and decreased fracture recurrence rates.

CONCLUSIONS

This study provides evidence of concurrent clinical improvements and health outcomes in discharged older patients with OVCFs from the effects of TC programs based on social support theory.

Proximal junctional fractures after long-segment instrumented fusion: comparisons between upper instrumented vertebrae and upper instrumented vertebrae + 1

Introduction

Proximal junctional failure (PJF) is a well-known complication after long-segment (at least 4 vertebral levels) instrumented fusion. The etiologies of PJF include degenerative processes or are fracture induced. The fracture type of PJF includes vertebral fractures developed at the upper instrumented vertebrae (UIV) or UIV + 1. The purpose of this study was to investigate clinical and radiographic features of these two subtypes of PJF and to analyze risk factors in these patients.

Method

In total, forty-two patients with PJF who underwent revision surgery were included. Twenty patients suffered fractures at the UIV, and the other 22 cases had fractures at UIV + 1. The weighted Charlson Comorbidity Index (CCI) and bone mineral density (BMD) T scores for these patients were recorded. Surgery-related data of index surgery and complications were collected. Radiographic parameters including pelvic tilt (PT), pelvic incidence (PI), sagittal vertical axis (SVA), lumbar lordosis (LL), and PI-LL were recorded in both groups before and after the revision surgery.

Result

Both groups had severe osteoporosis and comorbidities. The interval between the index surgery and revision surgery was shorter in the UIV group than in the UIV + 1 group (8.2 months vs. 35.9 months; p < 0.001). The analysis for radiographic parameters in UIV and UIV + 1 group demonstrated no significant change before and after the revision surgery. However, the preoperative radiographic analysis showed a larger PT (31.5° vs. 23.2°, p = 0.013), PI (53.7° vs. 45.3°, p = 0.035), and SVA (78.6° vs. 59.4°, p = 0.024) in the UIV group compared to the UIV + 1 group. The postoperative radiographic analysis showed a larger PI-LL (27.8° vs. 18.1°, p = 0.016) in the UIV group compared to the UIV + 1 group.

Conclusion

PJF in the UIV group tends to occur earlier than in the UIV + 1 group. Moreover, more severe global sagittal imbalances were found in the UIV group than in UIV + 1 group.

Data Resources for Evaluating the Economic and Financial Consequences of Surgical Care in the United States

LEVEL OF EVIDENCE

V.