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OBJECTIVE The burden of spinal trauma in low- and middle-income countries (LMICs) is immense, and its management is made complex in such resource-restricted settings. Algorithmic evidence-based management is cost-prohibitive, especially with respect to spinal implants, while perioperative care is work-intensive, making overall care dependent on multiple constraints. The objective of this study was to identify determinants of decision-making for surgical intervention, improvement in function, and in-hospital mortality among patients experiencing acute spinal trauma in resource-constrained settings. METHODS This study was a retrospective analysis of prospectively collected data in a cohort of patients with spinal trauma admitted to a tertiary referral hospital center in Dar es Salam, Tanzania. Data on demographic, clinical, and treatment characteristics were collected as part of a quality improvement neurotrauma registry. Outcome measures were surgical intervention, American Spinal Injury Association (ASIA) Impairment Scale (AIS) grade improvement, and in-hospital mortality, based on existing treatment protocols. Univariate analyses of demographic and clinical characteristics were performed for each outcome of interest. Using the variables associated with each outcome, a machine learning algorithm-based regression nonparametric decision tree model utilizing a bootstrapping method was created and the accuracy of the three models was estimated. RESULTS Two hundred eighty-four consecutively admitted patients with acute spinal trauma were included over a period of 33 months. The median age was 34 (IQR 26–43) years, 83.8% were male, and 50.7% had experienced injury in a motor vehicle accident. The median time to hospital admission after injury was 2 (IQR 1–6) days; surgery was performed after a further median delay of 22 (IQR 13–39) days. Cervical spine injury comprised 38.4% of the injuries. Admission AIS grades were A in 48.9%, B in 16.2%, C in 8.5%, D in 9.5%, and E in 16.6%. Nearly half (45.1%) of the patients underwent surgery, 12% had at least one functional improvement in AIS grade, and 11.6% died in the hospital. Determinants of surgical intervention were age ≤ 30 years, spinal injury level, admission AIS grade, delay in arrival to the referral hospital, undergoing MRI, and type of insurance; admission AIS grade, delay to arrival to the hospital, and injury level for functional improvement; and delay to arrival, injury level, delay to surgery, and admission AIS grade for in-hospital mortality. The best accuracies for the decision tree models were 0.62, 0.34, and 0.93 for surgery, AIS grade improvement, and in-hospital mortality, respectively. CONCLUSIONS Operative intervention and functional improvement after acute spinal trauma in this tertiary referral hospital in an LMIC environment were low and inconsistent, which suggests that nonclinical factors exist within complex resource-driven decision-making frameworks. These nonclinical factors are highlighted by the authors’ results showing clinical outcomes and in-hospital mortality were determined by natural history, as evidenced by the highest accuracy of the model predicting in-hospital mortality.

BACKGROUND: Cervical spine trauma (CST) leads to devastating neurologic injuries. In a cohort of CST patients from a major East Africa referral center, we sought to (a) describe presentation and operative treatment patterns, (b) report predictors of neurologic improvement, and (c) assess predictors of mortality. METHODS: A retrospective, cohort study of CST patients presenting to a tertiary hospital in Dar Es Salaam, Tanzania, was performed. Demographic, injury, and operative data were collected. Neurologic exam on admission/discharge and in-hospital mortality were recorded. Univariate/multivariate logistic regression assessed predictors of operative treatment, neurologic improvement, and mortality. RESULTS: Of 101 patients with CST, 25 (24.8%) were treated operatively on a median postadmission day 16.0 (7.0–25.0). Twenty-six patients (25.7%) died, with 3 (12.0%) in the operative cohort and 23 (30.3%) in the nonoperative cohort. The most common fracture pattern was bilateral facet dislocation (26.7%). Posterior cervical laminectomy and fusion and anterior cervical corpectomy were the 2 most common procedures. Undergoing surgery was associated with an injury at the C4–C7 region versus occiput–C3 region (odds ratio [OR] 6.36, 95% confidence interval [CI] 1.71–32.28, P = .011) and an incomplete injury (OR 3.64; 95% CI 1.19–12.25; P = .029). Twelve patients (15.8%) improved neurologically, out of the 76 total patients with a recorded discharge exam. Having a complete injury was associated with increased odds of mortality (OR 11.75, 95% CI 3.29–54.72, P < .001), and longer time from injury to admission was associated with decreased odds of mortality (OR 0.66, 95% CI 0.48–0.85, P = .006). CONCLUSIONS: Those most likely to undergo surgery had C4–C7 injuries and incomplete spinal cord injuries. The odds of mortality increased with complete spinal cord injuries and shorter time from injury to admission, probably due to more severely injured patients dying early within 24–48 hours of injury. Thus, patients living long enough to present to the hospital may represent a self-selecting population of more stable patients. These results underscore the severity and uniqueness of CST in a less-resourced setting. LEVEL OF EVIDENCE: 4.

Study Design: Retrospective cost-effectiveness analysis. Objectives: While the incidence of traumatic spine injury (TSI) is high in low-middle income countries (LMICs), surgery is rarely possible due to cost-prohibitive implants. The objective of this study was to conduct a preliminary cost-effectiveness analysis of operative treatment of TSI patients in a LMIC setting. Methods: At a tertiary hospital in Tanzania from September 2016 to May 2019, a retrospective analysis was conducted to estimate the cost-effectiveness of operative versus nonoperative treatment of TSI. Operative treatment included decompression/stabilization. Nonoperative treatment meant 3 months of bed rest. Direct costs included imaging, operating fees, surgical implants, and length of stay. Four patient scenarios were chosen to represent the heterogeneity of spine trauma: Quadriplegic, paraplegic, neurologic improvement, and neurologically intact. Disability-adjusted-life-years (DALYs) and incremental-cost-effectiveness ratios were calculated to determine the cost per unit benefit of operative versus nonoperative treatment. Cost/DALY averted was the primary outcome (i.e., the amount of money required to avoid losing 1 year of healthy life). Results: A total of 270 TSI patients were included (125 operative; 145 nonoperative). Operative treatment averaged $731/patient. Nonoperative care averaged $212/patient. Comparing operative versus nonoperative treatment, the incremental cost/DALY averted for each patient outcome was: quadriplegic ($112-$158/DALY averted), paraplegic ($47-$67/DALY averted), neurologic improvement ($50-$71/DALY averted), neurologically intact ($41-$58/DALY averted). Sensitivity analysis confirmed these findings without major differences. Conclusions: This preliminary cost-effectiveness analysis suggests that the upfront costs of spine trauma surgery may be offset by a reduction in disability. LMIC governments should consider conducting more spine trauma cost-effectiveness analyses and including spine trauma surgery in universal health care.

Study design Retrospective, cohort study of a prospectively collected database. Objectives In a cohort of patients with traumatic spine injury (TSI) in Tanzania who did not undergo surgery, we sought to: (1) describe this nonoperative population, (2) compare outcomes to operative patients, and (3) determine predictors of nonoperative treatment. Setting Tertiary referral hospital. Methods All patients admitted for TSI over a 33-month period were reviewed. Variables included demographics, fracture morphology, neurologic exam, indication for surgery, length of hospitalization, and mortality. Regression analyses were used to report outcomes and predictors of nonoperative treatment. Results 270 patients met inclusion criteria, of which 145 were managed nonoperatively. Demographics between groups were similar. The nonoperative group was young (mean = 35.5 years) and primarily male (n = 125, 86%). Nonoperative patients had 7.39 times the odds of death (p = 0.003). Patients with AO type A0/1/2/3 fractures (p

Background Reducing depth of anesthesia and anesthetic exposure may help prevent delirium, but trials have been conflicting. Most studies were conducted under general anesthesia or in cognitively impaired patients. It is unclear whether reducing depth of anesthesia beyond levels consistent with general anesthesia reduces delirium in cognitively intact patients. The authors’ objective was to determine whether a bundled approach to reduce anesthetic agent exposure as determined by Bispectral Index (BIS) values (spinal anesthesia with targeted sedation based on BIS values) compared with general anesthesia (masked BIS) reduces delirium. Methods Important eligibility criteria for this parallel-arm randomized trial were patients 65 yr or greater undergoing lumbar spine fusion. The intervention group received spinal anesthesia with targeted sedation to BIS greater than 60 to 70. The control group received general anesthesia (masked BIS). The primary outcome was delirium using the Confusion Assessment Method daily through postoperative day 3, with blinded assessment. Results The median age of 217 patients in the analysis was 72 (interquartile range, 69 to 77). The median BIS value in the spinal anesthesia with targeted sedation based on BIS values group was 62 (interquartile range, 53 to 70) and in the general anesthesia with masked BIS values group was 45 (interquartile range, 41 to 50; P < 0.001). Incident delirium was not different in the spinal anesthesia with targeted sedation based on BIS values group (25.2% [28 of 111] vs. the general anesthesia with masked BIS values group (18.9% [20 of 106]; P = 0.259; relative risk, 1.22 [95% CI, 0.85 to 1.76]). In prespecified subgroup analyses, the effect of anesthetic strategy differed according to the Mini-Mental State Examination, but not the Charlson Comorbidity Index or age. Two strokes occurred among patients receiving spinal anesthesia and one death among patients receiving general anesthesia. Conclusions Spinal anesthesia with targeted sedation based on BIS values compared with general anesthesia with masked BIS values did not reduce delirium after lumbar fusion. Editor’s Perspective What We Already Know about This Topic What This Article Tells Us That Is New

BACKGROUND The sacroiliac joint (SIJ) is an important cause of low back pain and referred leg pain (RLP). Pain from SIJ dysfunction may occur in isolation or may result from a combination with lumbosacral area–mediated pain. SIJ fusion is one treatment modality for medically refractory symptoms and may also have a role in the treatment of RLP. OBSERVATIONS The authors present a challenging case of concomitant lumbosacral degenerative disease and SIJ dysfunction in a patient with radiculopathy. They provide clinical characteristics and imaging findings and discuss difficulties in dealing with the intersection of these two distinct diagnoses. In addition, the authors offer a review of the relevant literature, elucidating the role of SIJ dysfunction in causing radicular lower extremity pain, the relationship to concomitant lumbosacral degenerative disease, and outcome data for SIJ fusion as it relates to RLP. LESSONS With increasing numbers of patients undergoing spinal instrumentation in the setting of degenerative lumbosacral arthritis, as well as randomized controlled trial data demonstrating the efficacy of SIJ fusion for medically refractory SIJ dysfunction, it is important to recognize the challenges in understanding how both of these patient groups may present with radiculopathy. Failure to do so may result in incorrect patient selection, poor outcomes, and increased morbidity for at-risk patients.

STUDY DESIGN: Retrospective, case-control study. OBJECTIVES: In a traumatic spinal injury (TSI) cohort from Tanzania, we sought to: (1) describe potential risk factors for pressure ulcer development, (2) present an illustrative case, and (3) propose a low-cost outpatient protocol for prevention and treatment. SETTING: Tertiary referral hospital. METHODS: All patients admitted for TSI over a 33-month period were reviewed. Variables included demographics, time to hospital, injury characteristics, operative management, length of hospitalization, and mortality. Pressure ulcer development was the primary outcome. Regressions were used to report potential predictors, and international guidelines were referenced to construct a low-cost outpatient protocol. RESULTS: Of 267 patients that met the inclusion criteria, 51 developed a pressure ulcer. Length of stay was greater for patients with pressure ulcers compared with those without (45 vs. 30 days, p

Background: The use of spinal anesthesia (SA) as opposed to general anesthesia (GA) during elective lumbar spine surgery is an emerging technique and represents a potentially modifiable factor to limit perioperative complications. Few studies, however, have compared these anesthetic techniques in an elderly population. The aim of this study is to determine if SA is a safe alternative to GA for lumbar spine surgery in elderly patients. Methods: A retrospective, consecutive case series study was performed. All patients aged 70 years and older who underwent lumbar spine decompression or combined decompression and fusion using either SA or GA during a 2-year period at a single institution were identified. Demographics and perioperative outcomes were compared. Results: Of all patients meeting the inclusion criteria, 56 patients (19%) received SA and 239 (81%) received GA. Patients receiving SA were slightly older (median age, 77 years versus 75 years, P = .002), consisted of more men (57% versus 36%, P = .01), and had a lower mean body mass index (28.3 versus 30.1, P = .03). Indications for surgery and type of surgery were similar between groups. On average, operative times with SA were 101 minutes versus 103 minutes with GA (P = .71). After controlling for age, sex, and body mass index, patients receiving SA had decreased estimated blood loss (β = −75 mL; 95% confidence interval [CI], −140.6, −9.4; P = .025) and intraoperative intravenous fluid requirements (β = −205 mL; 95% CI, −389.4, −21.0; P = .029), shorter postanesthesia care unit stays (β = −41 minutes; 95% CI, −64.6, −16.9; P = .001), lower maximum visual analog scale pain scores (β = −0.89 points; 95% CI, −1.6, −0.1; P = .020), and decreased odds of receiving blood transfusion (odds ratio, 0.12; 95% CI, 0.01, 0.62; P = .45); there were no significant differences in operative time, length of stay, nausea, or oral morphine equivalents consumed per day. Complication rates were similar between groups. Conclusion: Spinal anesthesia is a reasonable, safe alternative to general anesthesia for lumbar spine surgery in elderly patients with degenerative conditions.

Objective Hemorrhagic contusion in cervical spinal cord injury (CSCI) is poorly understood. We investigated hemorrhagic expansion in patients with CSCI with an assigned elevated mean arterial pressure (MAP) goal of >85 mm Hg. The change in hemorrhagic area and long-term follow-up data ≥6 months after injury was studied. Methods A retrospective review was performed from 2005 to 2016 to identify patients with motor complete CSCI with 2 cervical magnetic resonance imaging (MRI) scans within 7 days of injury showing evidence of hemorrhagic contusion and assigned a MAP goal of >85 mm Hg for 7 days. T2-weighted MRI was used to calculate the hemorrhagic surface area in the sagittal plane. A calculated MAP was recorded for each blood pressure measure between the initial and follow-up MRI scans. The American Spinal Injury Association impairment scale (AIS) and American Spinal Injury Association motor scores were recorded at the final follow-up examination at ≥6 months. Results A total of 193 patients were identified. The mean change in the hemorrhagic area was 24.0 mm2. Of the 193 patients, the AIS grade was A for 114 and B for 79 patients. Multiple logistic regression analysis demonstrated that the MAP and systolic blood pressure were nonsignificant predictors of hemorrhagic contusion expansion. An increased hemorrhagic contusion area on the follow-up MRI scan was associated with a reduced odds of AIS improvement of ≥1 and ≥2 points (odds ratio, 0.97; 95% confidence interval, 0.87–0.97; P = 0.028; and odds ratio, 0.92; 95% confidence interval, 0.99–1.13; P = 0.008, respectively) at the final ≥6-month follow-up examination. Conclusion The present study investigated the clinical safety of elevated MAP goals for patients with CSCI and hemorrhagic contusion. Elevated MAPs did not significantly increase the risk of hemorrhagic expansion in those with CSCI. We have also reported the use of hemorrhagic contusion size as a potential radiographic biomarker for neurological outcomes.

Study design A descriptive, cross-sectional survey of individuals involved in prehospital transportation of neurotrauma patients was performed. Objectives Little is known about prehospital care of neurotrauma patients in low- and middle-income countries. This study sought to assess the knowledge of prehospital transporters in Tanzania and propose an educational intervention to help identify patients with severe neurotrauma. Setting Dar es Salaam, Tanzania. Methods Surveys assessed demographic information and medical knowledge with three outcomes of identifying signs of a deceased, sick, or clinically deteriorating patient. Predictors of increased medical knowledge were investigated with univariate and multivariate logistic regression (MLR). Results The survey included 501 participants, who were predominantly young (mean: 36.7 years) and male (84.0%). More than 70% of participants self-reported being able to recognize a deceased or sick patient, yet fewer than 20% correctly listed more than two signs of a deceased, sick, or clinically deteriorating patient. MLR showed that first aid training (Odds ratio (OR): 2.3; 95% confidence interval (CI): 1.3, 3.9; p = 0.002) was predictive of identifying a deceased patient, being employed (OR: 0.5; 95% CI: 0.3, 0.9; p = 0.021) was a negative predictor of identifying a sick patient, and higher education level (OR: 2.3; 95% CI: 1.1, 4.8; p = 0.032) was predictive of identifying a clinically deteriorating patient. Conclusion In a survey of prehospital transporters of neurotrauma patients in Tanzania, higher education level and first aid training were associated with higher medical knowledge scores. An educational flier was created to identify severe neurotrauma patients. Additional education of prehospital transporters in Tanzania may improve morbidity and mortality of neurotrauma patients.

Retrospective review of a prospectively collected database.To assess the incidence of deep vein thrombosis (DVT) associated with single- versus multistage posterior-only complex spinal surgeries.Dividing the physiologic burden of spinal deformity surgery into multiple stages has been suggested as a potential means of reducing perioperative complications. DVT is a worrisome complication owing to its potential to lead to pulmonary embolism. Whether or not staging affects DVT incidence in this population is unknown.Consecutive patients undergoing either single- or multistage posterior complex spinal surgeries over a 12-year period at a single institution were eligible. All patients received lower extremity venous duplex ultrasonographic (US) examinations 2 to 4 days postoperatively in the single-stage group and 2 to 4 days postoperatively after each stage in the multistage group. Multivariate logistic regression was used to assess the independent contribution of staging to developing a DVT.A total of 107 consecutive patients were enrolled-26 underwent multistage surgery and 81 underwent single-stage surgery. The single-stage group was older (63 years vs. 45 years; p.01) and had a higher Charlson comorbidity index (2.25 ± 1.27 vs. 1.23 ± 1.58; p .01). More multistage patients had positive US tests than single-stage patients (5 of 26 vs. 6 of 81; 19% vs. 7%; p = .13). Adjusting for all the above-mentioned covariates, a multistage surgery was 8.17 (95% CI 0.35-250.6) times more likely to yield a DVT than a single-stage surgery.Patients who undergo multistage posterior complex spine surgery are at a high risk for developing a DVT compared to those who undergo single-stage procedures. The difference in DVT incidence may be understated as the multistage group had a lower pre- and intraoperative risk profile with a younger age, lower medical comorbidities, and less per-stage blood loss.

BACKGROUND Over 400000 Americans annually undergo spinal fusion surgeries, yet up to 40% of these procedures result in pseudoarthrosis even with iliac crest autograft, the current “gold standard” treatment. Tissue engineering has the potential to solve this problem via the creation of bone grafts involving bone-promoting growth factors (e.g., bone morphogenetic protein 2). A broad assessment of experimental growth factors is important to inform future work and clinical potential in this area. To date, however, no study has systematically reviewed the investigational growth factors utilized in preclinical animal models of spinal fusion. AIM To review all published studies assessing investigational growth factors for spinal fusion in animal models and identify promising agents for translation. METHODS We conducted a systematic review of the literature using PubMed, Embase, Cochrane Library, and Web of Science databases with searches run on May 29th, 2018. The search query was designed to include all non-human, preclinical animal models of spinal fusion reported in the literature without a timespan limit. Extracted data for each model included surgical approach, level of fusion, animal species and breed, animal age and sex, and any other relevant characteristics. The dosages/sizes of all implant materials, spinal fusion rates, and follow-up time points were recorded. The data were analyzed and the results reported in tables and text. PRISMA guidelines were followed for this systematic review. RESULTS Twenty-six articles were included in this study, comprising 14 experimental growth factors: AB204 (n = 1); angiopoietin 1 (n = 1); calcitonin (n = 3); erythropoietin (n = 1); basic fibroblast growth factor (n = 1); growth differentiation factor 5 (n = 4), combined insulin-like growth factor 1 + transforming growth factor beta (n = 4); insulin (n = 1); NELL-1 (n = 5); noggin (n = 1); P-15 (n = 1); peptide B2A (n = 2); and secreted phosphoprotein 24 (n = 1). The fusion rates of the current gold standard treatment (autologous iliac crest bone graft, ICBG) and the leading clinically used growth factor (BMP-2) ranged widely in the included studies, from 0-100% for ICBG and from 13%-100% for BMP-2. Among the identified growth factors, calcitonin, GDF-5, NELL-1, and P-15 resulted in fusion rates of 100% in some cases. In addition, six growth factors - AB204, angiopoietin 1, GDF-5, insulin, NELL-1, and peptide B2A - resulted in significantly enhanced fusion rates compared to ICBG, BMP-2, or other internal control in some studies. Large heterogeneity in animal species, fusion method, and experimental groups and time points was observed across the included studies, limiting the direct comparison of the growth factors identified herein. CONCLUSION Several promising investigational growth factors for spinal fusion have been identified herein; directly comparing the fusion efficacy and safety of these agents may inform clinical translation.

Spinal anesthesia for spine surgery is an emerging technique. Because of their lack of physiologic reserve, elderly patients are an appealing population for this technique. Unfortunately, the safe limits of spine surgery using spinal anesthesia for the geriatric population are not well defined. The authors describe an elderly patient with severe spine degeneration who elected for a 5-level lumbar spine fusion with spinal anesthesia. Adequate anesthesia was maintained throughout the procedure, which lasted 3 hours and 24 minutes. The patient experienced no perioperative complications. To the authors' knowledge, this is one of the longest spine surgeries using spinal anesthesia. Also, the fusion procedure spans more vertebral levels than previously reported. Further investigation is needed to determine the safety of this technique. [ Orthopedics. 2017; 40(5):e915–e917.]

BACKGROUND CONTEXT Postoperative radiographs are routinely obtained following the surgical treatment of traumatic cervical spine injuries. Previous studies have evaluated the utility of postoperative radiographs following elective cervical spine surgery for degenerative conditions, but there has been no study evaluating this exclusively in the trauma population. This routine imaging comes at a financial cost to the health care system in addition to exposing the patient to an increased radiation dose. We hypothesized that routine postoperative X-ray imaging following surgical treatment of cervical spine traumatic injuries are unwarranted in the absence of changes in clinical findings. PURPOSE To assess the utility of routine in-hospital postoperative radiographs following surgical treatment of traumatic cervical spine injuries. STUDY DESIGN/SETTING Retrospective study. PATIENT SAMPLE All patients who underwent surgical treatment of traumatic cervical spine injuries over an eight-year period between January 2008 and December 2016 at a Level I trauma center. OUTCOME MEASURES Requirement of revision surgery. METHODS A retrospective chart review of the patients who underwent surgical treatment of traumatic cervical spine injuries over an eight-year period between January 2008 and December 2016 at a Level I trauma center was performed. Prior to discharge, postoperative upright AP and lateral radiographs were obtained and reviewed by one of the surgeons as per standard protocol. Those patients who subsequently required revision surgery were identified and further analyzed to identify if the results of the radiographs obtained led to the subsequent intervention or if other indications for surgery were present. RESULTS A total of 295 patients (177 males and 118 females) were identified with a mean age of 57.4 years (range, 18-94) between January 2008 and December 2016 with mean follow up of 284 days. All had routine postoperative upright X-ray imaging as well as during follow-up visits. There were two occipito-cervical fusions, 128 C1-2 posterior spinal fusions (PSFs), 50 subaxial cervical PSFs, seven odontoid screws, 81 anterior cervical discectomy and fusions (ACDFs), four anterior cervical corpectomy and fusions (ACCFs) and eight 360° fusions. Ten patients required subsequent surgeries: five for wound complications, two for neurological decline requiring decompression, one for recurrent subluxation, and two for non-union or mal-union. Four other patients were noted to have broken/loose hardware that were managed conservatively. Advanced imaging (CT/MRI) was ordered in 13 patients, nine of which required additional surgery: In the cases requiring additional surgery, the postoperative radiographs added no value in guiding treatment in the absence of clinical findings. Every patient who underwent additional surgery had clinical findings (ie, wound breakdown, new-onset radiculopathy or continued pain) that were of concern. Cervical radiographs alone added an additional $545,868 of health care cost during the study period. CONCLUSIONS Routine in-hospital and postoperative radiographs following surgical treatment of traumatic cervical spine injuries are of little value, especially in the absence of changes in examination or symptoms. In our experience, only 2.3% (7/295) patients had hardware-related complications, four of which were asymptomatic and three of which required subsequent surgery. With today's increasing emphasis on cost efficiency and evidence-based practice, we recommend against obtaining routine postoperative imaging in the absence of new clinical findings. FDA DEVICE/DRUG STATUS This abstract does not discuss or include any applicable devices or drugs.

Spinal anesthesia is increasingly viewed as a reasonable alternative to general anesthesia for lumbar spine surgery. However, the results of spinal anesthesia in elderly patients undergoing lumbar spine decompression and combined decompression and fusion procedures are limited in the literature. The aim of this study was to report a single institution's experience using spinal anesthesia in elderly patients undergoing lumbar spine surgery. A retrospective review was conducted using a prospectively collected database of consecutive lumbar spine surgeries performed under spinal anesthesia in patients 70 years or older at a single center between December 2013 and October 2015. A total of 56 patients were included in the study; 27 patients (48%) underwent lumbar decompression and 29 patients (52%) underwent combined decompression and fusion procedures. Mean operative time was 101 minutes (range, 30–210 minutes), and mean operative blood loss was 187 mL (range, 20–700 mL). Mean maximum inpatient postoperative visual analog scale score was 6.2 (range, 1–10). Nausea occurred in 21% (12 of 56) of the patients. Mean length of stay was 2.4 days (range, 1–6 days). No mortality, stroke, permanent loss of function, or pulmonary embolism occurred. None of the cases required conversion to general anesthesia. All of the patients were ambulatory on either the day of the surgery or the next morning. These results demonstrate that spinal anesthesia is a viable method of anesthesia for patients 70 years and older undergoing lumbar spine surgery. They also demonstrate the safety of this method for patients older than 84 years and for surgeries lasting up to 3½ hours. [ Orthopedics. 2017; 40(2):e317–e322.]