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Joelson A, Nerelius F, Holy M, Sigmundsson FG. Reoperations After Decompression With or Without Fusion for L3-4 Spinal Stenosis With Degenerative Spondylolisthesis: A Study of 372 Patients in Swespine, the National Swedish Spine Register. Clin Spine Surg 2022; 35:E389-E393. [PMID: 34629386 DOI: 10.1097/bsd.0000000000001255] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 09/15/2021] [Indexed: 11/26/2022]
Abstract
STUDY DESIGN Register study with prospectively collected data. OBJECTIVE The aim was to investigate reoperation rates at the index level and the adjacent levels after surgery for lumbar L3-4 spinal stenosis with concomitant degenerative spondylolisthesis (DS). SUMMARY OF BACKGROUND DATA There are different opinions on how to surgically address lumbar spinal stenosis with DS. The potential benefit of fusion surgery should be weighed against the risks of future reoperations because of adjacent segment degeneration. Data on the reoperation rate at adjacent segments after single level L3-4 fusion surgery are limited. MATERIALS AND METHODS A total of 372 patients, who underwent surgery for lumbar L3-4 spinal stenosis with DS (slip >3 mm) between 2007 and 2012, were followed between 2007 and 2017 to identify reoperations at the index level and adjacent levels. The reoperation rate for decompression and fusion was compared with the reoperation rate for decompression only. Patient-reported outcome measures before and 1 year after surgery were evaluated. RESULTS The reoperation rate at the index level (L3-4) was 3.5% for decompression and fusion and 5.6% for decompression only. At the cranial adjacent level (L2-3), the corresponding numbers were 6.6% and 4.2%, respectively, and the caudal adjacent level (L4-5), the corresponding numbers were 3.1% and 4.9%, respectively. The effect sizes of change were larger for decompression and fusion compared with decompression only. The effect sizes of change were similar for leg pain and back pain. CONCLUSIONS We could not identify any differences in reoperation rates at the cranial or caudal adjacent segment after decompression and fusion compared with decompression only for L3-4 spinal stenosis with DS. The improvement in back pain is similar to the improvement in leg pain after surgery for L3-4 spinal stenosis with DS.
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Pazarlis K, Frost A, Försth P. Lumbar Spinal Stenosis with Degenerative Spondylolisthesis Treated with Decompression Alone. A Cohort of 346 Patients at a Large Spine Unit. Clinical Outcome, Complications and Subsequent Surgery. Spine (Phila Pa 1976) 2022; 47:470-475. [PMID: 35213524 DOI: 10.1097/brs.0000000000004291] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Cohort study. OBJECTIVE To study the clinical outcome, complications and subsequent surgery rate of DA for lumbar spinal stenosis (LSS) with DS. SUMMARY OF BACKGROUND DATA There is still no consensus regarding the treatment approach for LSS with DS. METHODS We performed a retrospectively designed cohort study on prospectively collected data from a single high productive spine surgical center. Results from the Swedish Spine Registry and a local register for complications were used for the analyses. Patients with LSS and DS (>3 mm) who underwent DA during January 2012 to August 2017 were included. Patient reported outcome measures at baseline and 2 years after surgery were analyzed. Complications within 30 days of surgery and all subsequent surgery in the lumbar spine were registered. RESULTS We identified and included 346 patients with completed 2-year follow-up registration. At 2-year follow-up there was a significant improvement in all outcome measures. The global assessment success rate for back and leg pain was 68.3% and 67.6% respectively. Forty-one patients had at least 1 intra- or postoperative complication (11.9%). Nine patients (2.6%), underwent subsequent surgery within 2 years of the primary surgery whereof 2 underwent fusion. During the whole period of data collection, that is, as of June 2020, 28 patients had undergone subsequent surgery (8.1%) whereas 8 of them had had 2 surgeries. Fifteen patients underwent fusion. CONCLUSION DA provides good clinical outcome at 2-year follow-up in patients with LSS and DS with low rate of intra- and postoperative complications and subsequent surgery. Our data supports the evidence that DA is effective and safe for LSS with DS.Level of Evidence: 3.
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Aimar E, Iess G, Mezza F, Gaetani P, Messina AL, Todesca A, Tartara F, Broggi G. Complications of degenerative lumbar spondylolisthesis and stenosis surgery in patients over 80 s: comparative study with over 60 s and 70 s. Experience with 678 cases. Acta Neurochir (Wien) 2022; 164:923-931. [PMID: 35138487 PMCID: PMC8913488 DOI: 10.1007/s00701-022-05118-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/04/2022] [Indexed: 11/29/2022]
Abstract
Purpose Degenerative spondylolisthesis (DS) is a debilitating condition that carries a high economic burden. As the global population ages, the number of patients over 80 years old demanding spinal fusion is constantly rising. Therefore, neurosurgeons often face the important decision as to whether to perform surgery or not in this age group, commonly perceived at high risk for complications. Methods Six hundred seventy-eight elder patients, who underwent posterolateral lumbar fusion for DS (performed in three different centers) from 2012 to 2020, were screened for medical, early and late surgical complications and for the presence of potential preoperative risk factors. Patients were divided in three categories based on their age: (1) 60–69 years, (2) 70–79 years, (3) 80 and over. Multiple logistic regression was used to determine the predictive power of age and of other risk factors (i.e., ASA score; BMI; sex; presence or absence of insulin-dependent and -independent diabetes, use of anticoagulants, use of antiaggregants and osteoporosis) for the development of postoperative complications. Results In univariate analysis, age was significantly and positively correlated with medical complications. However, when controls for other risk factors were added in the regressions, age never reached significance, with the only noticeable exception of cerebrovascular accidents. ASA score and BMI were the two risk factors that significantly correlated with the higher numbers of complication rates (especially medical). Conclusion Patients of different age but with comparable preoperative risk factors share similar postoperative morbidity rates. When considering octogenarians for lumbar arthrodesis, the importance of biological age overrides that of chronological. Supplementary Information The online version contains supplementary material available at 10.1007/s00701-022-05118-9.
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Kolenko AMG, Bauer JM. A delayed diagnosis of high-grade spondylolisthesis. JAAPA 2022; 35:38-41. [PMID: 35192553 DOI: 10.1097/01.jaa.0000805816.85664.a6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT Spondylolysis, or pars defect, occurs in nearly half of children with back pain. Despite the marked prevalence, diagnosis of spondylolysis with spondylolisthesis often is delayed or missed secondary to referred pain and uncharacteristic presentation. This article describes an 8-year-old patient with 15 months of right heel pain who was initially treated by her primary care provider for presumed Sever disease before being referred to orthopedics. After orthopedic consultation, she was diagnosed with a high-grade spondylolisthesis with L5 nerve root compression. Although spondylolysis is an infrequent diagnosis, particularly in a patient this young, missing the diagnosis can significantly reduce a patient's quality of life.
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Isakov A, Yanamadala V, Yassari R, Udemba A, Shaparin N, Hascalovici JR. Acute Cauda Equina Syndrome Due to Spondylolisthesis in the Midst of a Pandemic: A Case Report. JBJS Case Connect 2022; 12:01709767-202203000-00043. [PMID: 35142751 DOI: 10.2106/jbjs.cc.20.00546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
CASE A 54-year-old woman with chronic lumbar radiculopathy due to grade II spondylolisthesis at lumbar 4 to 5 developed acute cauda equina syndrome (CES) after an elective lumbar decompression, and fusion was delayed because of statewide bans on elective procedures during the pandemic. The diagnosis was made largely through telehealth consultation and eventually prompted urgent neurosurgical intervention. CONCLUSION This case report illustrates a rare presentation of acute CES and highlights some of the challenges of practicing clinical medicine in the midst of a pandemic.
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Khalifé M, Dauzac C, Lenoir T, Magrino B. Isthmic spondylolisthesis treated with circumferential arthrodesis (ALIF and posterior fixation): correction, fusion and indirect decompression. Acta Orthop Belg 2021; 87:787-794. [PMID: 35172449 DOI: 10.52628/87.4.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
There is no consensus regarding the choice of the surgical technique for isthmic spondylolisthesis treatment, although they all aim to a common goal, achieving fusion at the index level while restoring an appropriate lordosis and remove potential radicular compression. Analyze outcome of circumferential arthrodesis (CA) with ALIF (Anterior Lumbar Interbody Fusion) and pedicle screw fixation for the treatment of all-grade isthmic spondylolisthesis, with indirect neurological decompression. Retrospective study of isthmic spondylolisthesis treated with CA, with one-year follow-up. Clinical scores were collected at one year: VAS-L, VAS-R and ODI. Pelvic parameters, L4-S1 lordosis and at index and adjacent levels, and lumbo-sacral angle (LSA) were measured pre- and post-operatively and at last follow-up. Foraminal surface and diameters were measured pre- operatively and at follow-up on CT-Scan. Level of evidence: IV. 87 patients were included. Mean VAS-L was 2.3, mean VAS-R was 1, and mean ODI was 13.8%. 10% of the patients presented a high-grade spondylolisthesis and 50% a grade II. Mean lordosis at index level shifted from 6° to 18°, L4-S1 lordosis increased from 37 to 45° and LSA shifted from 116 to 125° (p<0.001). The foraminal surface increased from 50mm 2 to 70mm 2 at last follow-up mostly through the supero-inferior diameter, shifting from 7.4mm to 9.5mm (p<0.001). In LSA<90° group, mean correction was 20° at index level, 13° at L4-S1 and 21° for LSA versus 11°, 8° and 8° respectively in LSA>90° group (p<0.001). Fusion rate was estimated at 96.5%. One infection, 5 sympathetic dysfunctions, one retrograde ejaculation, one iliac vein injury, one incisional hernia, one lateral femoral cutaneous nerve injury and two adjacent syndromes have been noted. CA is an efficient technique for the treatment of isthmic spondylolisthesis of all grades, with an acceptable rate of complications. It allows a restoration of the regional lordosis as well as a foraminal widening, avoiding additional decompression.
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Lamberts RP, Eken MM, du Toit J, Botha E, de Villiers RVP, Langerak NG. Spinal Curvatures, Deformities, and the Level of Disability in People with Bilateral Spastic Cerebral Palsy Living in South Africa; A 6-Year Follow-Up Study During Adulthood. Arch Phys Med Rehabil 2021; 103:481-487. [PMID: 34653375 DOI: 10.1016/j.apmr.2021.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 09/07/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Determine if spinal curvatures, deformities, as well as level of disability (due to back pain) changes with aging in adults with bilateral spastic cerebral palsy after receiving orthopedic interval surgery approach treatment in childhood. DESIGN Consecutive case-series SETTING: Urban South Africa PARTICIPANTS: Twenty-seven ambulatory adults with cerebral palsy MAIN OUTCOME MEASURES: Spinal curvatures (scoliosis, thoracic kyphosis and lumbar lordosis) and deformities (spondylolysis and spondylolisthesis) were determined with X-rays, while the level of disability was assessed with the Oswestry Disability Index. RESULTS The prevalence of spinal abnormalities were: 30% scoliosis (mild: <30°), 0% thoracic hyperkyphosis, 15% lumbar hyperlordosis, 0%; spondylolysis, and 0% spondylolisthesis. No changes in scoliosis and lumbar lordosis angles were observed, while the change in thoracic kyphosis angle was smaller than the minimal clinically important difference and moved closer toward the norm-values for typically developing adults. Level of disability remained similar with 63% reporting minimal disability, 26% moderate disability and 11% severe disability. No associations with spinal curvatures were found. CONCLUSIONS No clinically meaningful changes in spinal curvatures, deformities and level of disability due to pain were seen during the 6 years follow-up period in adults with cerebral palsy who have been treated with interval surgery approach in childhood.
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Shrestha S, Lakhey RB, Paudel S, Kafle D, Pokharel R. Correlation of Pelvic Parameters with Isthmic Spondylolisthesis. Kathmandu Univ Med J (KUMJ) 2021; 19:420-423. [PMID: 36259182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Background Spondylolisthesis is one of the major causes of low back pain. The anterior shift of the vertebra is mostly at L4 and L5 levels. Several types have been described, most common being the isthmic type. Pelvic parameters are said to be associated with development and progression of listhesis, and should be evaluated while treating it. Objective To study the correlation of Pelvic parameters with isthmic spondylolisthesis. Method It was a cross sectional case control study. In 68 cases with Isthmic Spondylolisthesis and of 34 cases with low back pain without listhesis (control), the spinopelvic parameters like lumbar lordosis, pelvic incidence, pelvic tilt and sacral slopes were measured together with degree of slip with lateral radiographs. Findings were analyzed and compared with control group. Result In control group, the pelvic incidence was 50.44±4.78o , the sacral slope was 34.38±6.79o , the pelvic tilt was 15.97±5.31o , and the lumbar lordosis was 46.76±6.78o . In Isthmic Spondylolisthesis group, the pelvic incidence was 60.85±6.79o , the sacral slope was 40.40±6.91o , the pelvic tilt was 20.63±7.51o , and the lumbar lordosis was 57.31±7.11o . The difference in spinopelvic parameters amongst control and Isthmic Spondylolisthesis group was statistically significant (p < 0.001). The degree of slip was directly proportional to the pelvic incidence angle (grade I=52o , II =62o and III 72.5o ). Conclusion Spino-pelvic parameters are higher in isthmic spondylolisthesis group and is significantly associated with severity of the slip.
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Paranjape CS, Gentry RD, Regan CM. Cost-Effectiveness of Bariatric Surgery Prior to Posterior Lumbar Decompression and Fusion in an Obese Population with Degenerative Spondylolisthesis. Spine (Phila Pa 1976) 2021; 46:950-957. [PMID: 33428363 DOI: 10.1097/brs.0000000000003940] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Cost-effectiveness analysis. OBJECTIVE To determine if bariatric surgery prior to posterior lumbar decompression and fusion (PLDF) for degenerative spondylolisthesis (DS) is a cost-effective strategy. SUMMARY OF BACKGROUND DATA Obesity poses significant perioperative challenges for DS. Treated operatively, obese patients achieve worse outcomes relative to non-obese peers. Concomitantly, they fare better with surgery than with nonoperative measures. These competing facts create uncertainty in determining optimal treatment algorithms for obese patients with DS. The role of bariatric surgery merits investigation as a potentially cost-effective optimization strategy prior to PLDF. METHODS We simulated a Markov model with two cohorts of obese individuals with DS. 10,000 patients with body mass index (BMI) more than or equal to 30 in both arms were candidates for both bariatric surgery and PLDF. Subjects were assigned either to (1) no weight loss intervention with immediate operative or nonoperative management ("traditional arm") or (2) bariatric surgery 2 years prior to entering the same management options ("combined protocol").Published costs, utilities, and transition probabilities from the literature were applied. A willingness to pay threshold of $100,000/QALY was used. Sensitivity analyses were run for all variables to assess the robustness of the model. RESULTS Over a 10-year horizon, the combined protocol was dominant ($13,500 cheaper, 1.15 QALY more effective). Changes in utilities of operative and nonoperative treatments in non-obese patients, the obesity cost-multiplier, cost of bariatric surgery, and the probability of success of nonoperative treatment in obese patients led to decision changes. However, all thresholds occurred outside published bounds for these variables. CONCLUSION The combined protocol was less costly and more effective than the traditional protocol. Results were robust with thresholds occurring outside published ranges. Bariatric surgery is a viable, cost-effective preoperative strategy in obese patients considering elective PLDF for DS.Level of Evidence: 3.
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Kaneko T, Takano Y, Inanami H. One-year clinical outcome after full-endoscopic interlaminar lumbar discectomy for isthmic lumbar spondylolisthesis: Two case reports. Medicine (Baltimore) 2021; 100:e26385. [PMID: 34160416 PMCID: PMC8238276 DOI: 10.1097/md.0000000000026385] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 06/02/2021] [Indexed: 01/04/2023] Open
Abstract
RATIONALE For isthmic lumbar spondylolisthesis (ILS) associated with the removal of herniation, it remains challenging to perform less invasive and minimally disruptive procedures. Good results could potentially be obtained by further preserving the posterior elements in full-endoscopic lumbar discectomy (FESS), which is less invasive than microenscopic surgery (MES). PATIENT CONCERNS One patient complained of left leg pain, and another patient complained of right leg pain and low back pain. DIAGNOSES Two patients with ILS and Meyerding Grade 1 lumbar spondylolisthesis. INTERVENTIONS We performed a full-endoscopic lumbar discectomy via the interlaminar space (FESS-IL) for L5/S1 lumbar disc herniation (LDH) accompanied by isthmic lumbar spondylolisthesis. FESS-IL was performed in 2 patients with radiculopathy caused by different types of LDH using a full endoscopic system with a 4.1 mm working channel and 6.9 mm outer diameter. A 3.5-mm diameter high-speed drill was used in one patient for an upward-migrated LDH in the inner-rim of the infravertebral border. The other patient underwent minimal resection without bone resection. OUTCOMES The one-year clinical outcome included confirmation of pain relief and evacuation of migrated LDH on magnetic resonance imaging in all patients. There was no progression of slippage on radiography. The mean operative time was 82 min, and no complication was observed. The one-year clinical outcome demonstrated sufficient pain relief. LESSONS THE Y ear postoperative outcome showed improvement. We believe that FESS-IL is a viable alternative operative approach for LDH for ILS.
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Wang H, Lin F, Liang G, Liu B, Lin Y. Thoracic degenerative spondylolisthesis-associated myelopathy: A case report. Medicine (Baltimore) 2021; 100:e26150. [PMID: 34032771 PMCID: PMC8154381 DOI: 10.1097/md.0000000000026150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 05/11/2021] [Indexed: 11/26/2022] Open
Abstract
RATIONALE The thoracic spine is stabilized in the anteroposterior direction by the rib cage and the facet joints, thus thoracic degenerative spondylolisthesis is very uncommon. Here, we report a rare case of thoracic degenerative spondylolisthesis in which the lower thoracic region was the only region involved. PATIENT CONCERNS We present the case of a 56-year-old Chinese female who suffered from thoracic degenerative spondylolisthesis. She had a 2-year history of gait disturbance and bilateral lower-extremity numbness. The initial imaging examinations revealed Grade I anterior spondylolisthesis and severe cord compression, as well as bilateral facet joint osteoarthritis at T11/12. DIAGNOSIS The patient was diagnosed with thoracic degenerative spondylolisthesis-associated myelopathy. INTERVENTIONS She underwent a posterior decompression with transforaminal thoracic interbody fusion (TTIF) at T11/12. OUTCOMES The patient recovered well after the operation, and MRI at 12-month follow-up revealed that spinal cord compression was relieved and high signal intensity in T2-weighted image was improved. LESSONS To the best of our knowledge, this is the first reported case of thoracic degenerative spondylolisthesis in which the lower thoracic region was the only region involved. Disruption of joint capsule, instability with micromotion, and degenerative disc may contribute to this rare disease. Posterior decompression with posterolateral fusion or TTIF were the main treatment modalities, however, TTIF has its unique advantages because of sufficient decompression, immediate stability and high fusion rate.
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Akhaddar A. Letter to the Editor Regarding "Symptomatic Unilateral Pediculolysis Associated with Contralateral Spondylolysis and Spondylolisthesis in Adults-Case Report and Review of Literature". World Neurosurg 2020; 143:635-637. [PMID: 33167158 DOI: 10.1016/j.wneu.2020.08.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 08/17/2020] [Indexed: 11/19/2022]
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Chang Y, Zhou F, Fei L, Wang Z. The effect of preoperative degenerative spondylolisthesis on postoperative outcomes of degenerative lumbar spinal stenosis: A single-center cohort study protocol. Medicine (Baltimore) 2020; 99:e22355. [PMID: 33157913 PMCID: PMC7647626 DOI: 10.1097/md.0000000000022355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Most degenerative lumbar spinal stenosis (DLSS) patients primitively received the conservative treatment to control symptoms. In order to develop an optimal surgical treatment strategy, it is very significant to understand how the degenerative lumbar spondylolisthesis (DS) affects the effect of decompression in the DLSS. Thus, the aim of this current study was to explore whether the concomitant DS would affect the effect of decompression alone in the patients with DLSS. METHODS The current study was carried out at our hospital and it was approved through our institutional review committee of General Hospital of Ningxia Medical University. During the period from January 2015 to December 2017, in our study, we identified consecutive patients who received the minimally invasive laminectomy to treat the DLSS. The inclusion criterion included radicular leg pain or neurogenic claudication with the neurological symptoms associated with DLSS syndrome, magnetic resonance imaging of the lumbar spine reveals at least 1 level of serious stenosis, the conservative treatment failed for at least 3 months, and patients agreed to provide the postoperative details. The major outcomes of this present research was Oswestry Disability Index. Secondary outcomes of this current study involved visual analog score, short form-36, surgical revision rate as well as complications. RESULTS We assumed that previous DS possessed a negative effect on the postoperative results of the DLSS patients. TRIAL REGISTRATION researchregistry5943.
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Telfeian AE, Syed S, Oyelese A, Fridley J, Gokaslan ZL. Endoscopic Surgical Resection of the Retropulsed S1 Vertebral Endplate in L5-S1 Spondylolisthesis: Case Series. Pain Physician 2020; 23:E629-E636. [PMID: 33185381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
BACKGROUND A severe grade I and grade II spondylolisthesis at L5-S1 creates an anatomic distortion that can compress the traversing S1 nerve with a retropulsed S1 vertebral body endplate and (sometimes) herniated disc. OBJECTIVES To evaluate the feasibility for awake, endoscopic treatment of symptomatic radiculopathy secondary to the deformity that results from the retropulsed superior endplate of S1 in grade I/II L5-S1 spondylolisthesis in patients with and without previous fusion surgery. STUDY DESIGN Retrospective chart review. SETTING This study took place in a single-center, academic hospital. METHODS In 325 patients over 4 years there were 19 patients (8 with previous L5-S1 fusions and 11 without) treated with transforaminal endoscopic spine surgery for decompression of the neural foramen at L5-S1 in the setting of spondylolisthesis (at least 5 mm) and a retropulsed superior vertebral endplate of S1. RESULTS The average preoperative Visual Analog Scale (VAS) back and leg scores were 6.1 and 6.7, and the average preoperative Oswestry Disability Index (ODI) score was 50.4. The average 1-year VAS back and leg scores were 2.2 and 2.2, and the average 1-year postoperative ODI score was 20.5. There was no statistically significant difference between the fusion and nonfusion groups. Patients treated were patients who presented with an S1 or L5 and S1 radiculopathy as their primary complaint and a L5-S1 spondylolisthesis of 5 mm or greater. Patients treated had no instability on flexion-extension x-rays. Eleven patients had not had fusions at L5-S1, and 8 patients had previous fusions at L5-S1 but still had a spondylolisthesis of at least 5 mm. The average slip for nonfusion patients was 8.4 mm, and the average slip for fusion patients was 8.8 mm. At 1-year follow-up the improvement in VAS back scores was 44% in the nonfusion group and 49% in the fusion group, and the improvement in VAS leg scores was 84% in the nonfusion group and 58% in the fusion group. At 1-year follow-up the improvement in ODI scores was 63% in the nonfusion group and 54% in the fusion group. LIMITATIONS Retrospective case series. CONCLUSIONS Awake, endoscopic surgery for the treatment of radiculopathy in the setting of a grade I/II L5-S1 spondylolisthesis is a viable minimally invasive treatment option for patients with radiculopathy in the setting of a stable L5-S1 spondylolisthesis with foraminal narrowing caused by a retropulsed superior endplate of the S1 vertebral body.
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Yi P, Tang X, Yang F, Tan M. A retrospective controlled study protocol of transforaminal lumbar interbody fusion compared with posterior lumbar interbody fusion for spondylolisthesis. Medicine (Baltimore) 2020; 99:e22878. [PMID: 33126336 PMCID: PMC7598866 DOI: 10.1097/md.0000000000022878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND In the current literature, for adult lumbar spondylolisthesis, the direct comparison of clinical outcomes and perioperative complications between transforaminal lumbar interbody fusion (TLIF) and posterior lumbar interbody fusion (PLIF) is limited. Whether the therapeutic effect of TLIF is better than that of PLIF is still controversial. In this retrospective controlled study, our aim was to compare their clinical outcomes and radiological results of the above two stabilization approaches after 1-year follow-up period. METHODS This investigation was approved via the Institutional Review committee of China-Japan friendship hospital. This was a retrospective single-center analysis of subjects. We reviewed the patients with spondylolisthesis treated with TLIF or PLIF between July 2016 and February 2019 in our hospital. Patients with these conditions will be included: with the radiological evidence of degenerative lumbar spondylolismia with leg pain and/or low back pain, or the neurogenic claudication after failure of conventional conservative treatment for more than 6 months. The patients who received 3 levels or more intervertebral fusion levels were excluded. Patients without a completed medical history were excluded. Patients who had a history of lumbar spine surgery were also excluded. Clinical outcomes in our follow-up included functional outcomes, complications, and radiographic such as spondylolisthesis degree. The radiographs were obtained at 1, 3, 6, and 12 months during the outpatient follow-up. RESULTS This protocol will provide a solid theoretical basis for exploring which technique is better in treatment of spondylolisthesis. TRIAL REGISTRATION This study protocol was registered in Research Registry (number: researchregistry6032).
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Urakawa H, Jones T, Samuel A, Vaishnav AS, Othman Y, Virk S, Katsuura Y, Iyer S, McAnany S, Albert T, Gang CH, Qureshi SA. The necessity and risk factors of subsequent fusion after decompression alone for lumbar spinal stenosis with lumbar spondylolisthesis: 5 years follow-up in two different large populations. Spine J 2020; 20:1566-1572. [PMID: 32417500 DOI: 10.1016/j.spinee.2020.04.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/25/2020] [Accepted: 04/28/2020] [Indexed: 02/03/2023]
Abstract
BACKGROUND/CONTEXT Although decompression without fusion is a reasonable surgical treatment option for some patients with lumbar spinal stenosis (LSS) secondary to spondylolisthesis, some of these patients will require secondary surgery for subsequent fusion. Long-term outcome and need for subsequent fusion in patients treated with decompression alone in the setting of lumbar spondylolisthesis remains controversial. PURPOSE The aim of this study was to examine the rate, timing, and risk factors of subsequent fusion for patients after decompression alone for LSS with spondylolisthesis. STUDY DESIGN/SETTING A retrospective cohort study. PATIENT SAMPLE Patients who had LSS with spondylolisthesis and underwent decompression alone at 1 or 2 levels as a primary lumbar surgery with more than 5 year follow-up. OUTCOME MEASURES The rate, timing, and risk factors for subsequent fusion. METHODS Subjects were extracted from both public and private insurance resources in a nationwide insurer database. Risk factors for subsequent fusion were evaluated by multivariate cox proportion-hazard regression controlling for age, gender, comorbidities and the presence or absence of claudication. RESULTS Five thousand eight hundred and seventy-five patients in the public insurance population (PI population) and 1,456 patients in the private insurance population (PrI population) were included in this study. The rates of patients who needed subsequent fusion were 1.9% at 1 year, 3.5% at 2 years, and 6.7% at 5 years in the PI population, whereas they were 4.3% at 1 year, 8.9% at 2 years, 14.6% at 5 years in the PrI population. The time to subsequent fusion was 730 (365-1234) days in the PI population and 588 (300-998) days in the PrI population. Age less than 70 years, presence of neurogenic claudication and rheumatoid arthritis (RA)/collagen vascular diseases (CVD) were independent risk factors for subsequent fusion in both populations. CONCLUSIONS Decompression surgery alone can demonstrate good outcomes in some patients with LSS with spondylolisthesis. It is important for surgeons to recognize, however, that patient age less than 70 years, symptomatic neurogenic claudication, and presence of RA and/or CVD are significant independent factors associated with greater likelihood of needing secondary fusion surgery.
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Yokoyama K, Yamada M, Tanaka H, Ito Y, Sugie A, Wanibuchi M, Kawanishi M. Factors of Adjacent Segment Disease Onset After Microsurgical Decompression for Lumbar Spinal Canal Stenosis. World Neurosurg 2020; 144:e110-e118. [PMID: 32979543 DOI: 10.1016/j.wneu.2020.08.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/29/2020] [Accepted: 08/01/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Few studies have examined the underlying cause of adjacent segment disease (ASD) after decompression surgery for lumbar spinal stenosis. The goal of this study is to investigate factors related to the onset of ASD after decompression surgery based on the imaging results. METHODS We examined 95 patients who underwent single-level decompression for lumbar spinal stenosis (L3/4, L4/5) and follow-up for 5 or more years. Radiographic images were performed preoperatively and at each year of follow-up. We then examined image parameters by focusing on the level operated on and adjacent segments in relation to the postoperative onset of symptomatic ASD. RESULTS During the mean observation period of 7.5 years, 39 of 95 patients developed symptomatic ASD. Patients with a high preoperative sagittal rotation angle in adjacent segments possibly developed postoperative ASD (P = 0.0006). Furthermore, postoperative ASD tended to be unlikely in patients who exhibited postoperative slip progression at the operated level (P = 0.025). Based on receiver operating characteristic analysis, ASD developed with a probability of 91.3% in patients with a preoperative sagittal rotation angle of ≥7.5° in adjacent segments when there was no postoperative slip progression at the operated level. However, ASD developed in only 16.7% of patients with a preoperative adjacent segment sagittal rotation angle of 7.5° or less when there was postoperative slip progression at the operated level. CONCLUSIONS Biomechanical changes at the operated level and adjacent segments contribute to the onset of ASD after lumbar decompression. Preoperative high sagittal rotation angle of adjacent segments and negative postoperative slip progression at the operated level are risk factors of ASD.
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Gerling MC, Bortz C, Pierce KE, Lurie JD, Zhao W, Passias PG. Epidural Steroid Injections for Management of Degenerative Spondylolisthesis: Little Effect on Clinical Outcomes in Operatively and Nonoperatively Treated Patients. J Bone Joint Surg Am 2020; 102:1297-1304. [PMID: 32769595 PMCID: PMC7508264 DOI: 10.2106/jbjs.19.00596] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Although epidural steroid injection (ESI) may provide pain relief for patients with degenerative spondylolisthesis in treatment regimens of up to 4 months, it remains unclear whether ESI affects crossover from nonoperative to operative management. METHODS This retrospective cohort study analyzed 2 groups of surgical candidates with degenerative spondylolisthesis: those who received ESI within 3 months after enrollment (ESI group) and those who did not (no-ESI group). Annual outcomes following enrollment were assessed within operative and nonoperative groups (patients who initially chose or were assigned to surgery or nonoperative treatment) by using longitudinal mixed-effect models with a random subject intercept term accounting for correlations between repeated measurements. Treatment comparisons were performed at follow-up intervals. Area-under-the-curve analysis for all time points assessed the global significance of treatment. RESULTS The study included 192 patients in the no-ESI group and 74 in the ESI group. The no-ESI group had greater baseline Short Form-36 (SF-36) Bodily Pain scores (median, 35 versus 32) and self-reported preference for surgery (38% versus 11%). There were no differences in surgical rates within 4 years after enrollment between the no-ESI and ESI groups (61% versus 62%). The surgical ESI and no-ESI groups also showed no differences in changes in patient-reported outcomes at any follow-up interval or in the 4-year average. Compared with the nonoperative ESI group, the nonoperative no-ESI group showed greater improvements in SF-36 scores for Bodily Pain (p = 0.004) and Physical Function (p = 0.005) at 4 years, Bodily Pain at 1 year (p = 0.002) and 3 years (p = 0.005), and Physical Function at 1 year (p = 0.030) and 2 years (p = 0.002). Of the patients who were initially treated nonsurgically, those who received ESI and those who did not receive ESI did not differ with regard to surgical crossover rates. The rates of crossover to nonoperative treatment by patients who initially chose or were assigned to surgery also did not differ between the ESI and no-ESI groups. CONCLUSIONS There was no relationship between ESI and improved clinical outcomes over a 4-year study period for patients who chose or were assigned to receive surgery for degenerative spondylolisthesis. In the nonsurgical group, ESI was associated with inferior pain reduction through 3 years, although this was confounded by greater baseline pain. ESI showed little relationship with surgical crossover. LEVEL OF EVIDENCE Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
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Kashlan O, Swong K, Alvi MA, Bisson EF, Mummaneni PV, Knightly J, Chan A, Yolcu YU, Glassman S, Foley K, Slotkin JR, Potts E, Shaffrey M, Shaffrey CI, Haid RW, Fu KM, Wang MY, Asher AL, Bydon M, Park P. Patients with a depressive and/or anxiety disorder can achieve optimum Long term outcomes after surgery for grade 1 spondylolisthesis: Analysis from the quality outcomes database (QOD). Clin Neurol Neurosurg 2020; 197:106098. [PMID: 32717562 DOI: 10.1016/j.clineuro.2020.106098] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/14/2020] [Accepted: 07/17/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION In the current study, we sought to compare baseline demographic, clinical, and operative characteristics, as well as baseline and follow-up patient reported outcomes (PROs) of patients with any depressive and/or anxiety disorder undergoing surgery for low-grade spondylolisthesis using a national spine registry. PATIENTS AND METHODS The Quality Outcomes Database (QOD) was queried for patients undergoing surgery for Meyerding grade 1 lumbar spondylolisthesis undergoing 1-2 level decompression or 1 level fusion at 12 sites with the highest number of patients enrolled in QOD with 2-year follow-up data. RESULTS Of the 608 patients identified, 25.6 % (n = 156) had any depressive and/or anxiety disorder. Patients with a depressive/anxiety disorder were less likely to be discharged home (p < 0.001). At 3=months, patients with a depressive/anxiety disorder had higher back pain (p < 0.001), lower quality of life (p < 0.001) and higher disability (p = 0.013); at 2 year patients with depression and/or anxiety had lower quality of life compared to those without (p < 0.001). On multivariable regression, depression was associated with significantly lower odds of achieving 20 % or less ODI (OR 0.44, 95 % CI 0.21-0.94,p = 0.03). Presence of an anxiety disorder was not associated with decreased odds of achieving that milestone at 3 months. The presence of depressive-disorder, anxiety-disorder or both did not have an impact on ODI at 2 years. Finally, patient satisfaction at 2-years did not differ between the two groups (79.8 % vs 82.7 %,p = 0.503). CONCLUSION We found that presence of a depressive-disorder may impact short-term outcomes among patients undergoing surgery for low grade spondylolisthesis but longer term outcomes are not affected by either a depressive or anxiety disorder.
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Fedorchuk C, Lightstone DF, Comer RD, Katz E, Wilcox J. Improvements in Cervical Spinal Canal Diameter and Neck Disability Following Correction of Cervical Lordosis and Cervical Spondylolistheses Using Chiropractic BioPhysics Technique: A Case Series. J Radiol Case Rep 2020; 14:21-37. [PMID: 33082920 DOI: 10.3941/jrcr.v14i4.3890] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Cervical spondylolisthesis indicates instability of the spine and can lead to pain, radiculopathy, myelopathy and vertebral artery stenosis. Currently degenerative cervical spondylolisthesis is a wait-and-watch condition with no treatment guidelines. A literature review and discussion will be provided. 8 females presented with neck pain, disability, and history of motor vehicle collision. Radiographs revealed abnormal cervical alignment, spinal canal narrowing, and spondylolistheses. After 30 sessions of Chiropractic BioPhysics® care over 12 weeks, patients reported improved symptoms and disabilities. Radiographs revealed improvements in cervical alignment, spondylolistheses, and spinal canal diameter. Motor vehicle collision may cause instability and abnormal alignment of the cervical spine leading to cervical spondylolisthesis. Improving spinal alignment may be an effective treatment to reduce vertebral subluxation and cervical spondylolistheses and improve neck disability as a result of improved spinal alignment.
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Hammami M, Sahnoun N. [Retrospective study of surgical management of lumbosciatica in the Department of Orthopaedics in Tataouine, Tunisia: about 44 cases]. Pan Afr Med J 2020; 35:103. [PMID: 32637001 PMCID: PMC7320770 DOI: 10.11604/pamj.2020.35.103.22510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 04/01/2020] [Indexed: 11/18/2022] Open
Abstract
Lumbosciatica is a public health problem because of its socio-professional impact. The purpose of our study is to evaluate the indication for surgical treatment and the role of each technique used. We conducted a retrospective study in the Department of Orthopaedics in Tataouine. The study involved 44 patients with common lumbosciatica and having undergone surgical treatment over the period from 2013 to 2018. The information sheet included the epidemiological data and the clinical data. The patients underwent radiological assessment including lumbar spine x-ray (frontal and lateral views) and lumbar computed scan (CT) scan which clarified the cause of sciatica. Surgical treatment was indicated after medical treatment failure, in patients with hyperalgesia and in patients with neurological complication. In our study, herniated disc was the primary cause of lumbosciatica (50% of cases) followed by lumbar spinal stenosis (25%), spondylolisthesis (22.7%) and transverse mega-apophysis of L5 vertebrae (2.3%). Traditional discectomy was the most used technique for surgical treatment of herniated disc. Eight patients had spondylolisthesis. They underwent laminectomy associated with posterior arthrodesis. Lumbar spinal stenosis was treated with laminectomy alone in 54.54% of cases. Outcome was favorable during the follow up period in 90% of cases (Visual Analog Scale 3±1 at follow-up). Surgical technique depends on etiology and imaging data on which to base the choice of arthrodesis stages.
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Hebert JJ, Abraham E, Wedderkopp N, Bigney E, Richardson E, Darling M, Hall H, Fisher CG, Rampersaud YR, Thomas KC, Jacobs B, Johnson M, Paquet J, Attabib N, Jarzem P, Wai EK, Rasoulinejad P, Ahn H, Nataraj A, Stratton A, Manson N. Patients undergoing surgery for lumbar spinal stenosis experience unique courses of pain and disability: A group-based trajectory analysis. PLoS One 2019; 14:e0224200. [PMID: 31697714 PMCID: PMC6837529 DOI: 10.1371/journal.pone.0224200] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 10/08/2019] [Indexed: 11/23/2022] Open
Abstract
Objective Identify patient subgroups defined by trajectories of pain and disability following surgery for degenerative lumbar spinal stenosis, and investigate the construct validity of the subgroups by evaluating for meaningful differences in clinical outcomes. Methods We recruited patients with degenerative lumbar spinal stenosis from 13 surgical spine centers who were deemed to be surgical candidates. Study outcomes (leg and back pain numeric rating scales, modified Oswestry disability index) were measured before surgery, and after 3, 12, and 24 months. Group-based trajectory models were developed to identify trajectory subgroups for leg pain, back pain, and pain-related disability. We examined for differences in the proportion of patients achieving minimum clinically important change in pain and disability (30%) and clinical success (50% reduction in disability or Oswestry score ≤22) 12 months from surgery. Results Data from 548 patients (mean[SD] age = 66.7[9.1] years; 46% female) were included. The models estimated 3 unique trajectories for leg pain (excellent outcome = 14.4%, good outcome = 49.5%, poor outcome = 36.1%), back pain (excellent outcome = 13.1%, good outcome = 45.0%, poor outcome = 41.9%), and disability (excellent outcome = 30.8%, fair outcome = 40.1%, poor outcome = 29.1%). The construct validity of the trajectory subgroups was confirmed by between-trajectory group differences in the proportion of patients meeting thresholds for minimum clinically important change and clinical success after 12 postoperative months (p < .001). Conclusion Subgroups of patients with degenerative lumbar spinal stenosis can be identified by their trajectories of pain and disability following surgery. Although most patients experienced important reductions in pain and disability, 29% to 42% of patients were classified as members of an outcome trajectory subgroup that experienced little to no benefit from surgery. These findings may inform appropriate expectation setting for patients and clinicians and highlight the need for better methods of treatment selection for patients with degenerative lumbar spinal stenosis.
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Fuseya K, Yoshikura N, Ono Y, Takekoshi A, Kimura A, Shimohata T. [Distal-type Cervical Spondylolisthesis Muscular Atrophy in a Patient with Dupuytren Contracture: A Case Report]. BRAIN AND NERVE = SHINKEI KENKYU NO SHINPO 2019; 71:1303-1307. [PMID: 31722316 DOI: 10.11477/mf.1416201440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We report the case of a 71-year-old man with impaired left finger extension. The presence of nodular fibrosing lesions in his palm suggested Dupuytren contracture as the diagnosis. However, detailed neurological examination revealed muscle weakness associated with C7-Th1 lesions, and needle electromyography revealed denervation within the same distribution. Therefore, the patient was diagnosed with distal-type cervical spondylolisthesis muscular atrophy complicated with Dupuytren contracture. Due to shared symptoms with impaired finger extension, the other two conditions can be overlooked in patients affected by both diseases. Detailed clinical investigation of nodular fibrosing lesions, muscle weakness at the C7-Th1 level, and needle electromyography findings facilitate differential diagnosis of Dupuytren contracture and distal-type cervical spondylolisthesis. (Received June 24, 2019; Accepted September 17, 2019; Published November 1, 2019).
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Caelers IJMH, Rijkers K, van Hemert WLW, de Bie RA, van Santbrink H. [Lumbar spondylolisthesis; common, but surgery is rarely needed]. NEDERLANDS TIJDSCHRIFT VOOR GENEESKUNDE 2019; 163:D3769. [PMID: 31556497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Lumbar spondylolisthesis is usually asymptomatic. However, symptomatic spondylolisthesis results in back and/or leg pain such as radicular syndrome or neurogenic claudication. Variation in symptoms is caused by different types of spondylolisthesis. Lytic spondylolisthesis, most common at L5S1, is caused by spondylolysis of the pars interarticularis. This results in foraminal nerve compression and radicular symptoms. Degenerative spondylolisthesis, most common at L4L5 in patients >50 years old, is caused by slippage of the vertebral body and lamina, resulting in lumbar spinal stenosis and neurogenic claudication. Iatrogenic spondylolisthesis develops in 1.6-32.0% of patients after decompression surgery, causing recurrent neurogenic symptoms. It is important to understand the main symptoms patients experience: back or leg pain. In both cases, the preferred treatment is conservative. Surgery is only an option if patients have persistent/progressive leg pain. Shared decision-making is necessary to select the most accurate surgery for each individual patient while also taking into account age, comorbidities and symptoms. Further research is necessary to determine the advantages of each surgery in order to improve advice to patients.
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Gad Abdelkader S, El Zahlawy HN, Elkhateeb TM. Interbody fusion versus posterolateral fusion in treatment of low grade lytic spondylolisthesis. Acta Orthop Belg 2019; 85:269-273. [PMID: 31677621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This is a prospective randomized study to compare the outcome of two widely used fusion methods ; posterior lumbar interbody fusion (PLIF) and posterolateral fusion (PLF) in treatment of adult low grade lytic spondylolisthesis to know which is ideal. 40 consecutive patients with single level lytic spondylolisthesis were randomly divided into two treatment groups when undergoing surgery. Blood loss and operative time were recorded. Patients were postoperatively assessed using JOA score. Union rate was assessed. They were followed up for a minimum of 2 years. No differences were found between both groups as regards operative time and blood loss. At 2 years follow up, statistically significant improvement in JOA scores were found in both fusion groups. However, no difference could be found between the groups. Both groups showed solid fusion with no evidence of non-union in all cases. Both methods appear to be equally effective in treatment of the condition.
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