Aims. This study, using a surgeon-maintained database, aimed to explore the risk factors for surgery-related complications in patients undergoing primary
Aims. Patients seeking
Background. The transverse skin incision for anterior
Introduction. The Odom's criteria are, since 1958, a widely used 4-point rating scale for assessing the clinical outcome after
We retrospectively examined the prevalence and
natural history of asymptomatic lumbar canal stenosis in patients treated
surgically for cervical compressive myelopathy in order to assess
the influence of latent lumbar canal stenosis on the recovery after
surgery. Of 214 patients who had undergone cervical laminoplasty
for cervical myelopathy, we identified 69 (32%) with myelographically
documented lumbar canal stenosis. Of these, 28 (13%) patients with
symptomatic lumbar canal stenosis underwent simultaneous cervical
and lumbar decompression. Of the remaining 41 (19%) patients with
asymptomatic lumbar canal stenosis who underwent only
There is evidence that preoperative physical fitness impacts surgical outcomes, specifically preceding abdominal, cardiovascular and spine surgery. To our knowledge, there are no papers on self-reported exercise frequency as a predictor of
The August 2014 Spine Roundup. 360 . looks at: rhBMP complicates
Resident involvement in the operating room is a vital component of their medical education. Conflicting and limited research exists regarding the effects of surgical resident participation on spine surgery patient outcomes. Our objective was to determine the effect of resident involvement on surgery duration, length of hospital stay and 30-day post-operative complication rates. This study was a multicenter retrospective analysis of the prospectively collected American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP) database. All anterior cervical or posterior lumbar fusion surgery patients were identified. Patients who had missing trainee involvement information, surgery for cancer, preoperative infection or dirty wound classification, spine fractures, traumatic spinal cord injury, intradural surgery, thoracic surgery and emergency surgery were excluded. Propensity score for risk of any complication was calculated to account for baseline characteristic differences between the attending alone and trainee present group. Multivariate logistic regression was used to investigate the impact of resident involvement on surgery duration, length of hospital stay and 30 day post-operative complication rates. 1441 patients met the inclusion criteria: 1142 patients had surgeries with an attending physician alone and 299 patients had surgeries with trainee involvement. After adjusting using the calculated propensity score, the multivariate analysis demonstrated that there was no significant difference in any complication rates between surgeries involving trainees compared to surgeries with attending surgeons alone. Surgery times were found to be significantly longer for surgeries involving trainees. To further explore this relationship, separate analyses were performed for tertile of predicted surgery duration, cervical or lumbar surgery, instrumentation, inpatient or outpatient surgery. The effect of trainee involvement on increasing surgery time remained significant for medium predicted surgery duration, longer predicted surgery duration,
Purpose: To review the existing practice of coding in spinal surgery and ascertain its accuracy for surgical procedures, co-morbidities and complications. Methods: A retrospective review of 70 cervical and 100 lumbar consecutive spinal surgeries performed since April 2006 was conducted. The clinical coding data and hospital notes were reviewed. Results: Coding data of 5
Purpose: Published series of minimally invasive cervical foraminotomy (MICF) have shown excellent short-term relief of cervical radiculopathy (85–98%) with minimal surgical morbidity. There have been no long-term clinical series documenting the stability of these results over time. This is the first long-term follow-up of MICF patients to determine the incidence of recurrent symptoms and need for additional
Introduction: Accurate and ethical coding is challenging and directly impacts on Payment by Results (PbR). The aims &
objectives of this study were to review the existing pattern of coding for spinal surgery and ascertain its appropriateness &
accuracy for surgical procedures, medical co-morbidities and post-op complications. Methods: A retrospective review of 70 consecutive cervical and 100 consecutive lumbar spine patients who were operated from April 2006 onwards was conducted. The excel sheet provided by coding department, hospital notes – clinic letters, physicians’ entries, theatre notes and laboratory reports (biochemistry/microbiology/histology) – were reviewed. Of the 170 cases, 165 were available for analysis. Results: Coding data of 5 patients who underwent
Introduction: Anterior
Cervical total disc replacement has been in practice for years now as a viable alternative to cervical fusion in suitable cases, aspiring to preserve spinal motion and prevent adjacent segment disease. Reports are rife that neck pain emerges as an annoying feature in the early postoperative period. The facet joint appears to be the most likely source of pain. 50 patients were prospectively followed up through 5 years after having received disc replacement surgery, indicated for symptomatic soft disc herniation of the cervical spine presenting with radiculopathy. • All were skeletally mature and aged between 22 to 50. • All had failed a minimum of 6 months conservative therapy. • Up to 2 disc levels were addressed. C3 till C7 levels. • Single surgeon (first author). • NDI > 30% (15/50). • Deteriorating radicular neurology. We excluded those with degenerative trophic changes of the cervical spine, focal instability, trauma, osteoporosis, previous
C5 nerve root palsy is a rare and potentially
debilitating complication of
Background:. Cervical spine injured patients often require prolonged ventilatory support due to intercostal paralysis and recurrent chest infections. This may necessitate tracheotomy. Concern exists around increased complications when anterior
To audit the routine measurement of Vitamin B12 levels prior to cervical decompressive surgery. Retrospective analysis of medical records and pathology results of patients who underwent decompressive
The June 2023 Spine Roundup360 looks at: Characteristics and comparative study of thoracolumbar spine injury and dislocation fracture due to tertiary trauma; Sublingual sufentanil for postoperative pain management after lumbar spinal fusion surgery; Minimally invasive bipolar technique for adult neuromuscular scoliosis; Predictive factors for degenerative lumbar spinal stenosis; Lumbosacral transitional vertebrae and lumbar fusion surgery at level L4/5; Does recall of preoperative scores contaminate trial outcomes? A randomized controlled trial; Vancomycin in fibrin glue for prevention of SSI; Perioperative nutritional supplementation decreases wound healing complications following elective lumbar spine surgery: a randomized controlled trial.
The February 2023 Spine Roundup360 looks at: S2AI screws: At what cost?; Just how good is spinal deformity surgery?; Is 80 years of age too late in the day for spine surgery?; Factors affecting the accuracy of pedicle screw placement in robot-assisted surgery; Factors causing delay in discharge in patients eligible for ambulatory lumbar fusion surgery; Anterior cervical discectomy or fusion and selective laminoplasty for cervical spondylotic myelopathy; Surgery for cervical radiculopathy: what is the complication burden?; Hypercholesterolemia and neck pain; Return to work after surgery for cervical radiculopathy: a nationwide registry-based observational study.
The number of patients undergoing surgery for degenerative cervical radiculopathy has increased. In many countries, public hospitals have limited capacity. This has resulted in long waiting times for elective treatment and a need for supplementary private healthcare. It is uncertain whether the management of patients and the outcome of treatment are equivalent in public and private hospitals. The aim of this study was to compare the management and patient-reported outcomes among patients who underwent surgery for degenerative cervical radiculopathy in public and private hospitals in Norway, and to assess whether the effectiveness of the treatment was equivalent. This was a comparative study using prospectively collected data from the Norwegian Registry for Spine Surgery. A total of 4,750 consecutive patients who underwent surgery for degenerative cervical radiculopathy and were followed for 12 months were included. Case-mix adjustment between those managed in public and private hospitals was performed using propensity score matching. The primary outcome measure was the change in the Neck Disability Index (NDI) between baseline and 12 months postoperatively. A mean difference in improvement of the NDI score between public and private hospitals of ≤ 15 points was considered equivalent. Secondary outcome measures were a numerical rating scale for neck and arm pain and the EuroQol five-dimension three-level health questionnaire. The duration of surgery, length of hospital stay, and complications were also recorded.Aims
Methods
Purpose. Patient expectations influence post-treatment outcomes, both surgical and non-surgical. Existing studies evaluate the technical aspects of interventions and functional outcomes but fail to take into account patient expectations. This retrospective analysis of prospectively collected multi-center data aims to explore the relationship between pre-operative expectations and post-operative outcomes and satisfaction in lumbar and
Stereotactic navigation in cranial surgery is a well-established technique, in routine clinical use since the turn of the century. The advent of computer guided stereotaxis since the early 1990’s has led to an explosion in applications for the technology in cranial surgery, with the development of new surgical techniques, minimal access and consequent claimed reduction in morbidity and mortality. Computer guidance also allows application of stereotactic techniques in spinal surgery. Early interventions have concentrated on the insertion of pedicle screws with improvement in accuracy and certainty of optimal screw placement. The use of fluoroscopic guidance allows the insertion of percutaneous pedicle screws and truly minimal access fusion techniques for the lumbar spine. More recently the development of improved registration has allowed the application of this technology to thoracic spinal surgery and to the cervical spine. Percutaneous techniques for C1/C2 arthrodesis, image guided vertebrectomy and transoral surgery, have been reported. The technology allows the development of surgical techniques designed not only for individual pathology but adapted to the anatomy of the individual patient. Disadvantages include a significant learning curve, especially for
Objective: Measuring outcomes from chronic disease in terms of generic, health-related quality of life (HRQoL) instruments is of increasing importance to allow valid comparison of interventions and to accurately assess efficacy of treatment from the patient’s perspective. In this context we sought to establish the role of the generic SF-36 health survey in measuring outcomes from spinal surgery. Method: A prospective observational study of patients undergoing elective cervical discectomy, lumbar discectomy, and lumbar laminectomy using both disease specific (Myelopathy Disability Index [MDI], Roland Morris Disability Scale [RMDS], Visual Analogue Scales [VAS], Hospital Anxiety and Depression Scales [HADS]) and SF-36 assessment pre-operatively and at 3 months and 12–24 months following surgery. The generic instrument was tested for the components of construct validity in comparison to the established specific measures. Analysis was performed with non-parametric statistics within SPSS. Results: Six-hundred and twenty patients were followed between 1998 and 2005 (median age 53 years; 203 lumbar discectomy, 177 lumbar laminectomy, 240 cervical discectomy). The principal SF-36 physical domains (Physical Functioning, Bodily Pain) strongly correlated with disease specific scores in all patients (Spearman’s ρ=0.5–0.74, p<
0.001) and similarly SF-36 mental domains correlated with the HADS subscales (ρ=0.30–0.45, p<
0.001) indicating concurrent/convergent validity. Discriminant validity was confirmed by the absence of significant correlation between SF-36 physical domains and the HADS (ρ=0.014–0.14, p>
0.05). In the lumbar laminectomy and cervical discectomy patients disease-specific physical scores prior to surgery strongly predicted early and late outcome (area under the receiver-operating characteristics curve [AUC] = 0.79–0.86, p<
0.001) and the same pattern was mirrored in the SF-36 physical domains (AUC = 0.76–0.78, p<
0.001) demonstrating the predictive validity of the generic measure. Physical Function and Bodily Pain SF-36 domains both had excellent response to change by Cohen’s criteria with effect sizes (standardised mean difference) of 0.86–1.57. Conclusion: The SF-36 has been shown to possess the necessary features of construct validity in relation lumbar and
Anterior decompression and adequate spine fixation in patients with cervical radiculopathy and myelopathy are essential for functional restoration of cervical spine. In this study, we performed evaluation and comparative radiological assessment of several types of spinal implants in terms of bone block formation, sagittal alignment and effectiveness as a structural support. Materials and Methods: From 1993 to 2003, 165 patients with radiculopathy and myelopathy due to degenerative disease of cervical spine were operated on. The age of patients was 32–74 years (mean age 57, 8). The interbody fusion was performed by several methods. Group1. Autograft – 91 patients. Group 2. TiNi alloy cages – 74 patients. Group 3. Varilift expandable cages without plate fixation – 22 patients. Group 4. Verilift cages with plate fixation – 8 patients. Group 5. Bone substitute spacer and plate fixation – 3 patients. Results: In groups 1 and 2, the bone and bone-metal block was formed during the first 3–4 months after surgery in all patients. There were no cases of bone resorbtion around the TiNi cages or loosening of the device. In patients with one-level (15 patients) interbody fusion by Varilift cages (group 3); formation of the bone block during the same time period was observed in 14 out of 15 patients. In cases with two-level fusion (7 patients), the bone block at the second level was not formed for longer than 6 months. There were 7 cases of subsiding and segmental kyphosis. In group 4, we did not detect any cases of loosening, subsiding or segmental kyphosis. In group 5, no bone block formation was observed after 6 months despite plate fixation. Conclusions: A high fusion rate was achieved after a single or multi-level discectomy and interbody fusion by autograft and TiNi cages, which did not subside due to their design and superelasticity and can therefore be used without plate fixation. Varilift cages were also very effective, but if used without plate fixation may be associated with subsiding effect. The use of the bone substitute spacer is questionable in
Dysphagia is a common complication of anterior
surgery of the cervical spine. The incidence of post-operative dysphagia
may be as high as 71% within the first two weeks after surgery,
but gradually decreases during the following months. However, 12%
to 14% of patients may have some persistent dysphagia one year after
the procedure. It has been shown that female gender, advanced age,
multilevel surgery, longer operating time and severe pre-operative
neck pain may be risk factors. Although the aetiology remains unclear
and is probably multifactorial, proposed causes include oesophageal
retraction, prominence of the cervical plate and prevertebral swelling.
Recently, pre-operative tracheal traction exercises and the use
of retropharyngeal steroids have been proposed as methods of reducing
post-operative dysphagia. We performed a systematic review to assess the incidence, aetiology,
risk factors, methods of assessment and management of dysphagia
following anterior cervical spinal surgery. Cite this article:
We aimed to evaluate the temperature around the nerve root during drilling of the lamina and to
determine whether irrigation during drilling can reduce the chance of nerve root injury. Lumbar nerve roots were exposed to frictional heat by high-speed drilling of the lamina in a live
rabbit model, with saline (room temperature (RT) or chilled saline) or without saline (control)
irrigation. We measured temperatures surrounding the nerve root and made histological
evaluations.Aims
Materials and Methods
Wrong-level surgery is a unique pitfall in spinal
surgery and is part of the wider field of wrong-site surgery. Wrong-site
surgery affects both patients and surgeons and has received much
media attention. We performed this systematic review to determine
the incidence and prevalence of wrong-level procedures in spinal
surgery and to identify effective prevention strategies. We retrieved
12 studies reporting the incidence or prevalence of wrong-site surgery
and that provided information about prevention strategies. Of these,
ten studies were performed on patients undergoing lumbar spine surgery
and two on patients undergoing lumbar, thoracic or cervical spine procedures.
A higher frequency of wrong-level surgery in lumbar procedures than
in cervical procedures was found. Only one study assessed preventative
strategies for wrong-site surgery, demonstrating that current site-verification protocols
did not prevent about one-third of the cases. The current literature
does not provide a definitive estimate of the occurrence of wrong-site
spinal surgery, and there is no published evidence to support the
effectiveness of site-verification protocols. Further prevention
strategies need to be developed to reduce the risk of wrong-site surgery.
The effective capture of outcome measures in
the healthcare setting can be traced back to Florence Nightingale’s
investigation of the in-patient mortality of soldiers wounded in
the Crimean war in the 1850s. Only relatively recently has the formalised collection of outcomes
data into Registries been recognised as valuable in itself. With the advent of surgeon league tables and a move towards value
based health care, individuals are being driven to collect, store
and interpret data. Following the success of the National Joint Registry, the British
Association of Spine Surgeons instituted the British Spine Registry.
Since its launch in 2012, over 650 users representing the whole
surgical team have registered and during this time, more than 27 000
patients have been entered onto the database. There has been significant publicity regarding the collection
of outcome measures after surgery, including patient-reported scores.
Over 12 000 forms have been directly entered by patients themselves,
with many more entered by the surgical teams. Questions abound: who should have access to the data produced
by the Registry and how should they use it? How should the results
be reported and in what forum? Cite this article:
We investigated the incidence of anomalies in
the vertebral arteries and Circle of Willis with three-dimensional
CT angiography in 55 consecutive patients who had undergone an instrumented
posterior fusion of the cervical spine. We recorded any peri-operative and post-operative complications.
The frequency of congenital anomalies was 30.9%, abnormal vertebral
artery blood flow was 58.2% and vertebral artery dominance 40%. The posterior communicating artery was occluded on one side in
41.8% of patients and bilaterally in 38.2%. Variations in the vertebral
arteries and Circle of Willis were not significantly related to
the presence or absence of posterior communicating arteries. Importantly,
18.2% of patients showed characteristic variations in the Circle
of Willis with unilateral vertebral artery stenosis or a dominant
vertebral artery, indicating that injury may cause lethal complications.
One patient had post-operative cerebellar symptoms due to intra-operative
injury of the vertebral artery, and one underwent a different surgical
procedure because of insufficient collateral circulation. Pre-operative assessment of the vertebral arteries and Circle
of Willis is essential if a posterior spinal fusion with instrumentation
is to be carried out safely. Cite this article:
Cerebral venous sinus thrombosis is a rare condition, which is difficult to diagnose. It has not previously been reported following surgery to the cervical spine . We report such a case in a 45-year-old man after cervical disc replacement. A high index of suspicion, with early imaging of the brain and prompt treatment, can produce a favourable outcome, albeit not in this case.
We carried out a prospective study to determine whether the addition of a recombinant human bone morphogenetic protein (rhBMP-2) to a machined allograft spacer would improve the rate of intervertebral body fusion in the spine. We studied 77 patients who were to undergo an interbody fusion with allograft and instrumentation. The first 36 patients received allograft with adjuvant rhBMP-2 (allograft/rhBMP-2 group), and the next 41, allograft and demineralised bone matrix (allograft/demineralised bone matrix group). Each patient was assessed clinically and radiologically both pre-operatively and at each follow-up visit using standard methods. Follow-up continued for two years. Every patient in the allograft/rhBMP-2 group had fused by six months. However, early graft lucency and significant (>
10%) subsidence were seen radiologically in 27 of 55 levels in this group. The mean graft height subsidence was 27% (13% to 42%) for anterior lumbar interbody fusion, 24% (13% to 40%) for transforaminal lumbar interbody fusion, and 53% (40% to 58%) for anterior cervical discectomy and fusion. Those who had undergone fusion using allograft and demineralised bone matrix lost only a mean of 4.6% (0% to 15%) of their graft height. Although a high rate of fusion (100%) was achieved with rhBMP-2, significant subsidence occurred in more than half of the levels (23 of 37) in the lumbar spine and 33% (6 of 18) in the cervical spine. A 98% fusion rate (62 of 63 levels) was achieved without rhBMP-2 and without the associated graft subsidence. Consequently, we no longer use rhBMP-2 with allograft in our practice if the allograft has to provide significant structural support.
We have reviewed 1858 patients who had undergone a cervical laminoplasty and identified 43 (2.3%) who had developed a C5 palsy with a MMT (MRC) grade of 0 to 2 in the deltoid, with or without involvement of the biceps, but with no loss of muscular strength in any other muscles. The clinical features and radiological findings of patients with (group P; 43 patients) and without (group C; 100 patients) C5 palsy were compared. CT scanning of group P revealed a significant narrowing of the intervertebral foramen of C5 (p <
0.005) and a larger superior articular process (p <
0.05). On MRI, the posterior shift of the spinal cord at C4–5 was significantly greater in group P, than in group C (p <
0.01). This study is the first to correlate impairment of the C5 nerve root with a C5 palsy. It may be that early foraminotomy in susceptible individuals and the avoidance of tethering of the cord by excessive laminoplasty may prevent a post-operative palsy of the C5 nerve root.
We evaluated the use of surgical stabilisation for atlantoaxial subluxation after a follow-up of 24 years in 50 rheumatoid patients who had some degree of pain but no major neurological deficit. The mortality of patients treated by atlantoaxial fusion was significantly lower than for those who received conservative treatment. The deaths resulted from infection or comorbid conditions. The significantly high relative risks of mortality from conservative treatment compared with surgical treatment were mutilating disease and susceptible factors on both of the HLA-DRB1 alleles. Relief from pain and neurological and functional recovery were better, and the radiological degree of atlantoaxial translocation was less in those who were surgically treated compared with those who were not. Two patients had superficial local infections after surgery. We conclude that prophylactic atlantoaxial fusion is better than conservative treatment in these patients.