Long-Term Outcome of Microendoscopic Diskectomy for Lumbar Disk Herniation. A Clinical Study of Consecutive 112 Cases with More than 5-Year Follow-Up

Background Clinical results and recurrence rate after microendoscopic diskectomy (MED) with long-term follow-up is still unclear, in spite of its relatively long history. Materials and Methods A total of 112 who underwent MED participated in this study. Operative time, blood loss, serum C-reactive protein (CRP), creatine kinase (CK), and visual analog scale (VAS) were evaluated as indexes of surgical invasiveness. The 36-Item Short Form Survey Instrument (SF-36), Japanese Orthopaedic Association (JOA) score, patient satisfaction, and recurrence were also evaluated with a follow-up of at least 5 years. Results The mean operative time was 86.7 minutes, and the mean blood loss was 35.7 mL. The mean CRP on postoperative day 3 and CK on the first postoperative day was 0.72 mg/dL and 224.6 IU/L, respectively, and VAS to assess surgical site pain on the first postoperative day was 24.9 mm on average. The improvement rate in the JOA score was 68.7%. The physical component summary of SF-36 in norm-based scoring was improved from 23.4 to 48.6. Overall, 90.8% of patients evaluated their response to the surgery as extremely satisfied or satisfied. The recurrence rate was 10.5%, and reoperation was performed in 7.9% of patients. Conclusions MED is a technique that offers both reduced invasiveness and good long-term clinical results.

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Long-Term Outcome after Successful Lower Extremity Free Flap Salvage

Journal of Reconstructive Microsurgery ◽

10.1055/s-0038-1675146 ◽

2018 ◽

Vol 35 (04) ◽

pp. 263-269 ◽

Cited By ~ 5

Author(s):

Amir Bigdeli ◽

Emre Gazyakan ◽

Volker Schmidt ◽

Christoph Bauer ◽

Günter Germann ◽

...

Keyword(s):

Lower Extremity ◽

Free Flap ◽

Free Flaps ◽

Term Outcome ◽

Long Term Outcome ◽

Component Score ◽

Sf 36 ◽

The Mean

Background Vascular occlusion after free flap surgery has become a rare complication but still poses a major challenge. It necessitates urgent re-exploration, but the logistic challenge to provide sufficient resources for the emergency intervention remains. The aim of this study was to analyze the long-term outcome after successful lower extremity free flap salvage. Methods A single-center retrospective study including long-term follow-up was approved by the local ethics committee. From January 1999 to December 2010, a total of 581 free flaps were performed for lower extremity reconstruction. Eighty-six flaps required emergency re-exploration, of which 65 could be salvaged. Fifteen salvaged flaps were excluded from the study because of secondary amputation. Of 50 patients, 29 (6 females and 23 males) were eligible for follow-up. The mean follow-up time was 54.5 ± 32.9 months. Health-related quality of life (Short Form 36 [SF-36]) and scar quality (Vancouver Scar Scale [VSS]) were analyzed. Results The overall flap survival rate was 94.7% and the total loss rate was 5.3%. The re-exploration rate was 14.8% (86 of 581 flaps). The salvage rate was 75.6% (65 of 86 flaps). Twenty-one free flaps were totally lost (24.4%). Partial flap loss occurred in 12 cases (14.0%); 67.5% of the vascular complications occurred during the first 24 hours, 20.9% between 24 and 72 hours, and 11.6% after more than 72 hours. The mean time from the first signs of impaired flap perfusion to re-exploration was 1.3 ± 0.4 hours, and from free tissue transfer to re-exploration was 16.2 ± 1.9 hours. The overall scar appearance was good with an average VSS score of 4.0 points. The average SF-36 physical component score was 54.4 ± 5.4 and the mental component score was 63.1 ± 10.7. Conclusion Careful monitoring and the opportunity for urgent re-exploration are the key to success for free flaps salvage. Following these principles, an acceptable long-term outcome can be achieved.

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Klinische Langzeitergebnisse der perkutanen transluminalen Angioplastie bei Patienten mit peripherer arterieller Verschlusskrankheit

VASA ◽

10.1024/0301-1526.31.1.36 ◽

2002 ◽

Vol 31 (1) ◽

pp. 36-42 ◽

Cited By ~ 3

Author(s):

. Bucek ◽

Hudak ◽

Schnürer ◽

Ahmadi ◽

Wolfram ◽

...

Keyword(s):

Success Rate ◽

Clinical Stage ◽

Ankle Brachial Index ◽

Clinical Situation ◽

Clinical Results ◽

Transluminal Angioplasty ◽

Term Outcome ◽

Long Term Outcome

Background: We investigated the long-term clinical results of percutaneous transluminal angioplasty (PTA) in patients with peripheral arterial occlusive disease (PAOD) and the influence of different parameters on the primary success rate, the rate of complications and the long-term outcome. Patients and methods: We reviewed clinical and hemodynamic follow-up data of 166 consecutive patients treated with PTA in 1987 in our department. Results: PTA improved the clinical situation in 79.4% of patients with iliac lesions and in 88.3% of patients with femoro-popliteal lesions. The clinical stage and ankle brachial index (ABI) post-interventional could be improved significantly (each P < 0,001), the same results were observed at the end of follow-up (each P < 0,001). Major complications occurred in 11 patients (6.6%). The rate of primary clinical long-term success for suprainguinal lesions was 55% and 38% after 5 and 10 years (femoro-popliteal 44% and 33%), respectively, the corresponding data for secondary clinical long-term success were 63% and 56% (60% and 55%). Older age (P = 0,017) and lower ABI pre-interventional (P = 0,019) significantly deteriorated primary clinical long-term success for suprainguinal lesions, while no factor could be identified influencing the outcome of femoro-popliteal lesions significantly. Conclusion: Besides an acceptable success rate with a low rate of severe complications, our results demonstrate favourable long-term clinical results of PTA in patients with PAOD.

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Long-Term Outcomes of Patients with Hydrocephalus Secondary to Tectal Plate Glioma versus Idiopathic Aqueductal Stenosis: Results from a Single Center

Pediatric Neurosurgery ◽

10.1159/000515516 ◽

2021 ◽

pp. 1-11

Author(s):

Hamid Reza Niknejad ◽

Melissa Frederickx ◽

Emiel Salaets ◽

Jurgen Lemiere ◽

Lieven Lagae ◽

...

Keyword(s):

Aqueductal Stenosis ◽

Maximum Diameter ◽

Benign Tumors ◽

Term Outcome ◽

Adequate Treatment ◽

Long Term Outcome ◽

Tectal Plate ◽

The Mean

Introduction: Tectal plate gliomas (TPG) constitute a distinct entity of benign tumors of the brain stem which show an indolent clinical course. Adequate treatment of secondary hydrocephalus is undoubtedly a major factor in the outcome. However, little is known about to what degree the tumor itself determines the long-term outcome of these patients. Methods: We retrospectively analyzed and compared the clinical and radiological data of 16 pediatric TPG patients with data of 12 pediatric idiopathic aqueductal stenosis (IAS) patients treated in our center from 1988 to 2018. For both groups, we assessed the long-term outcome in terms of hydrocephalus management, and for the TPG group, we assessed tumor growth during follow-up. In a separate prospective part of the study, we performed a neuropsychological evaluation in a subgroup of patients using a standardized testing battery, covering intelligence, learning, memory, executive functions, and an inventory on depression. Results: In the TPG group, the mean clinical and radiological follow-up was 84 and 70 months, respectively. On average, the maximum diameter of the tumor increased by 11% (p = 0.031) and the estimated tumor volume with 35% (p = 0.026) on radiological follow-up. The fronto-occipital horn ratio (FOHR) decreased by 23% on average after treatment. In the IAS group, the mean clinical and radiological follow-up was 117 and 85 months, respectively. In this group, the FOHR decreased by 21% on average. Neurocognitive testing revealed significant higher scores in the TPG group on global intelligence (TPG = 109, IAS = 85.5, U = 3, p < 0.01, z = −2.71), performance (TPG= 100, IAS = 85, U = 7, p = 0.03, z = −2.2), and verbal intelligence (TPG = 122, IAS = 91.5, U = 2, p < 0.00, z = −2.87) as well as working memory (TPG = 109.5, IAS = 77, U = 0.5, p = 0.01, z = −2.46). Conclusion: Our results suggest that the long-term outcome in TPG patients is acceptable and that cognition is substantially better preserved than in patients with IAS. This puts the idea of a significant contribution of the tumoral mass to disease outcome on the long term in question. Adequate and prompt management of hydrocephalus is the most important factor in long-term cognitive outcome.

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Modified Percutaneous Achilles Tendon Lengthening by Triple Hemisection for Achilles Tendon Contracture

BioMed Research International ◽

10.1155/2019/1491796 ◽

2019 ◽

Vol 2019 ◽

pp. 1-8 ◽

Cited By ~ 1

Author(s):

Yangjing Lin ◽

Jin Cao ◽

Changgui Zhang ◽

Liu Yang ◽

Xiaojun Duan

Keyword(s):

Achilles Tendon ◽

Recurrence Rate ◽

Operative Time ◽

Achilles Tendon Rupture ◽

Tendon Lengthening ◽

Group A ◽

Achilles Tendon Lengthening ◽

The Mean ◽

Group B

Background. Both percutaneous Achilles tendon lengthening by triple hemisection and the traditional open Z-lengthening are effective methods for Achilles tendon contracture. This study aims to evaluate the efficacy and safety of this new therapeutic method, which is based on the percutaneous sliding technique with three hemi-cuts in the tendon, as compared with the traditional open Z-lengthening. Methods. Retrospective analysis of the Achilles tendon contracture cases in our hospital between January 2010 and September 2016 was conducted. Twenty-five cases received percutaneous Achilles tendon lengthening (group A), and 30 patients who underwent open Z-lengthening during the same period were in the control group (group B). Operative time and hospital stay were statistically analyzed. Incision complication, equinus recurrence rate and Achilles tendon rupture morbidity were recorded. The function was assessed by American Orthopaedic Foot & Ankle Society (AOFAS) score. All cases in group A received Magnetic Resonance Imaging (MRI) of ankle preoperatively and in the follow-ups. Results. The mean follow-up period was 42.04 months in group A and 61.7 months in group B. The entire operative time and the mean hospitalization days were lower in group A than in group B. No incision and infection complication occurred in group A. The infection rate in group B was 3.3%. Equinus recurrence rate was 4% in group A and the equinus recurrence rate in group B was 21.4%. In group A, the mean AOFAS score increased from 64 ± 10.16 points preoperatively to 96.08 ± 3.17 at final follow-up, while the score in group B increased from 63.48 ± 6.2 points to 85.4 ± 10.3. MRI showed continuity of the Achilles tendon and homogeneous signal in group A. Conclusion. Modified surgery can significantly reduce the risk of Achilles tendon rupture, provide better balance in soft tissue strength between ankle dorsiflexion and ankle plantarflexion, helping to avoid recurrence of the deformity.

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Long-term outcome of pallidal stimulation for Meige syndrome

Journal of Neurosurgery ◽

10.3171/2017.7.jns17323 ◽

2018 ◽

Vol 130 (1) ◽

pp. 84-89 ◽

Cited By ~ 8

Author(s):

Shiro Horisawa ◽

Taku Ochiai ◽

Shinichi Goto ◽

Takeshi Nakajima ◽

Nobuhiko Takeda ◽

...

Keyword(s):

Rating Scale ◽

Small Scale ◽

Initial Symptom ◽

Long Term Outcome ◽

Time Points ◽

Meige Syndrome ◽

Pallidal Stimulation ◽

The Mean

OBJECTIVEMeige syndrome is characterized by blepharospasm and varied subphenotypes of craniocervical dystonia. Current literature on pallidal surgery for Meige syndrome is limited to case reports and a few small-scale studies. The authors investigated the clinical outcomes of deep brain stimulation (DBS) of the globus pallidus internus (GPi) in patients with Meige syndrome.METHODSSixteen patients who underwent GPi DBS at the Tokyo Women’s Medical University Hospital between 2002 and 2015 were included in this study. Burke-Fahn-Marsden Dystonia Rating Scale (BFMDRS) movement subscale (BFMDRS-M) scores (range 0–120) obtained at the following 3 time points were included in this analysis: before surgery, 3 months after surgery, and at the most recent follow-up evaluation.RESULTSThe patients’ mean age (± SD) at symptom onset was 46.7 ± 10.1 years, and the mean disease duration at the time of the authors’ initial evaluation was 5.9 ± 4.1 years. In 12 patients, the initial symptom was blepharospasm, and the other 4 patients presented with cervical dystonia. The mean postoperative follow-up period was 66.6 ± 40.7 months (range 13–150 months). The mean total BFMDRS-M scores at the 3 time points were 16.3 ± 5.5, 5.5 ± 5.6 (66.3% improvement, p < 0.001), and 6.7 ± 7.3 (58.9% improvement, p < 0.001).CONCLUSIONSThe results indicate long-term efficacy for GPi DBS for the majority of patients with Meige syndrome.

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Comparison of robot-assisted retroperitoneal laparoscopic adrenalectomy versus retroperitoneal laparoscopic adrenalectomy for large pheochromocytoma: a single-centre retrospective study

BMC Surgery ◽

10.1186/s12893-020-00895-5 ◽

2020 ◽

Vol 20 (1) ◽

Author(s):

Sheng-Qiang Fu ◽

Chang-Shui Zhuang ◽

Xiao-Rong Yang ◽

Wen-Jie Xie ◽

Bin-Bin Gong ◽

...

Keyword(s):

Laparoscopic Adrenalectomy ◽

Operative Time ◽

Haemodynamic Instability ◽

Robot Assisted ◽

Improvement Rate ◽

Long Term Follow Up ◽

Tumour Characteristics ◽

Group 1

Abstract Background To evaluate the feasibility and safety of robot-assisted retroperitoneal laparoscopic adrenalectomy (RARLA) for large pheochromocytomas (PHEOs; size≥6 cm) compared with retroperitoneal laparoscopic adrenalectomy (RLA). Methods Fifty-one patients who underwent adrenalectomy for large PHEOs between March 2016 and January 2019 were enrolled and divided into two groups, including 32 RLA cases and 19 RARLA cases. We compared the perioperative efficacy and long-term follow-up results between the two groups. Results Preoperative data, including demographics, comorbidities and tumour characteristics, were similar between the groups. Intraoperatively, the RARLA group had a lower incidence of haemodynamic instability (26.3% vs. 56.2%, P = 0.038) and less intraoperative blood loss (100 ml vs. Two hundred milliliter, P = 0.042) than the RLA group. The groups showed no significant differences in operative time or transfusion rates. Postoperatively, the time to diet resumption, time to ambulation, time to drainage removal and postoperative hospital stay were shorter in the RARLA group than in the RLA group (1 d vs. 2 d, P = 0.027; 1 d vs. 2 d, P = 0.034; 3 d vs. 5 d, P = 0.002; 5 d vs. 6 d, P = 0.02, respectively). The groups exhibited no significant differences in the duration of anaesthetic use, complications, or long-term follow-up results for the blood pressure (BP) improvement rate. Conclusions Compared with RLA, RARLA is a safe, feasible and even optimized procedure for large PHEOs.

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Long-term outcome following ilioinguinal neurectomy for chronic pain

Journal of Neurosurgery ◽

10.3171/2009.8.jns09533 ◽

2010 ◽

Vol 112 (4) ◽

pp. 784-789 ◽

Cited By ~ 57

Author(s):

Andrew C. Zacest ◽

Stephen T. Magill ◽

Valerie C. Anderson ◽

Kim J. Burchiel

Keyword(s):

Abdominal Surgery ◽

Hernia Repair ◽

Rating Scale ◽

Chronic Groin Pain ◽

Term Outcome ◽

Long Term Outcome ◽

Ilioinguinal Nerve ◽

The Mean

Object Ilioinguinal neuralgia is one cause of chronic groin pain following inguinal hernia repair, and it affects ~ 10% of patients. Selective ilioinguinal neurectomy is one proposed treatment option for carefully selected patients. The goal of this study was to determine the long-term outcome of patients who underwent selective ilioinguinal neurectomy for chronic post-hernia pain. Methods The authors retrospectively reviewed the clinical assessment, surgical treatment, and long-term outcome in 26 patients with ilioinguinal neuralgia who underwent selective ilioinguinal neurectomy performed by the senior author (K.J.B.) at Oregon Health & Science University between 1998 and 2008. Data were collected from patient charts and a follow-up telephone questionnaire. Results Twenty-six patients (14 men and 12 women) had a clinical diagnosis of ilioinguinal neuralgia based on a history of radiating neuropathic groin, medial thigh, and genitalia pain. One patient had bilateral disease (therefore there were 27 surgical cases). A selective nerve block was performed in 21 (81%) of 26 patients and was positive in 20 (77%) of the 26. In all but 2 patients, pain onset followed abdominal surgery (for hernia repair in 18 patients), and was immediate in 16 (67%) of 24 patients. The mean patient age was 48.7 years, and the mean duration of pain prior to neurosurgical consultation was 3.9 years. Surgery was performed after induction of local or general anesthesia in 17 and 10 cases, respectively. The ilioinguinal nerve was identified in 25 cases, and the genitofemoral nerve in 2, either entrapped in mesh, scar, or with obvious neuroma (22 of 27 cases). The identified nerve was doubly ligated, cut, and buried in muscle at its most proximal point. At the 2-week follow-up evaluations, 14 (74%) of 19 patients noted definite pain improvement. Nineteen (73%) of the 26 patients were contacted by telephone and agreed to participate in completing long-term follow-up questionnaires. The mean follow-up duration was 34.78 months. Return of pain was reported by 13 (68%) of 19 patients. Using a verbal numerical rating scale (0–10), pain was completely relieved in 27.8%, better in 38.9%, no better in 16.7%, and worse in 16.7% of patients. Conclusions Ilioinguinal neurectomy is an effective and appropriate treatment for selected patients with iatrogenic ilioinguinal neuralgia following abdominal surgery. Although a high proportion of patients reported some long-term recurrence of pain, complete or partial pain relief was achieved in 66.7% of the patients observed.

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Repeated Liver Resection for Colorectal Liver Metastases: A Comparison with Primary Liver Resections concerning Perioperative and Long-Term Outcome

Gastroenterology Research and Practice ◽

10.1155/2012/568214 ◽

2012 ◽

Vol 2012 ◽

pp. 1-4 ◽

Cited By ~ 12

Author(s):

Kristoffer Jönsson ◽

Gerd Gröndahl ◽

Martin Salö ◽

Bobby Tingstedt ◽

Roland Andersson

Keyword(s):

Liver Resection ◽

Blood Loss ◽

Liver Metastases ◽

Colorectal Liver Metastases ◽

Postoperative Mortality ◽

Term Outcome ◽

Long Term Outcome ◽

Liver Resections

Introduction. 60% of patients operated for colorectal liver metastases (CRLM) will develop recurrent disease and some may be candidates for a repeated liver resection. The study aimed to evaluate differences in intraoperative blood loss and complications comparing the primary and the repeated liver resection for metastases of colorectal cancer (CRC), as well as to evaluate differences in long-time follow-up.Method. 32 patients underwent 34 repeated liver resections due to recurrence of CRLM an studied retrospectively to identify potential differences between the primary and the repeat resections.Results. There was no 30-day postoperative mortality or postoperative hospital deaths. The median blood loss at repeat resection (1850 mL) was significantly (P=0.014) higher as compared to the primary liver resection (1000 mL). This did not have any effect on the rate of complications, even though increased bleeding in itself was a risk factor for complications. There were no differences in survival at long-term follow-up.Discussion. A repeated liver resection for CRLM was associated with an increased intraoperative bleeding as compared to the first resection. Possible explanations include presence of adhesions, deranged vascular anatomy, more complicated operations and the effects on the liver by chemotherapy following the first liver resection. 30 out of 32 patients had only one reresection of the liver.

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Hemangiopericytoma: long-term outcome revisited

Journal of Neurosurgery ◽

10.3171/2010.6.jns091660 ◽

2011 ◽

Vol 114 (3) ◽

pp. 747-755 ◽

Cited By ~ 84

Author(s):

Marco Schiariti ◽

Pablo Goetz ◽

Hussien El-Maghraby ◽

Jignesh Tailor ◽

Neil Kitchen

Keyword(s):

Overall Survival ◽

Local Recurrence ◽

External Beam Radiation ◽

Beam Radiation ◽

Long Term Outcome ◽

Free Interval ◽

Initial Surgery ◽

The Mean

Object Hemangiopericytomas are rare tumors that behave aggressively with a high rate of local recurrence and distant metastases. With the aim of determining the outcome and response to various treatment modalities, a series of 39 patients who underwent microsurgical resection for primary meningeal hemangiopericytoma over a 24-year period is presented. Methods Patients with hemangiopericytoma were identified from histopathology records and their medical records were analyzed retrospectively by 2 independent reviewers to collect data on surgical treatment, adjuvant therapy, postoperative course, local or distant recurrence, and follow-up. Results Of the 39 patients, 19 were male and 20 were female. Mean patient age was 44.1 years. Thirty-four tumors were intracranial and 5 were spinal. The mean follow-up period was 123 months. Twenty-eight patients developed local recurrence. The recurrence rate at 1, 5, and 15 years was 3.5%, 46%, and 92%, respectively. Extraneural metastasis occurred in 8 patients (26%) at an average of 123 months after initial surgery. Recurrences and metastases were treated by surgical excision, external beam radiation therapy (EBRT), chemotherapy, and/or stereotactic radiosurgery. Adjuvant EBRT following initial surgery was found to extend the disease-free interval from 154 months to 254 months, although it did not prevent the development of metastasis. In those patients with EBRT and complete resection, the mean recurrence-free interval was found to be 126.3 months longer (p = 0.04) and overall survival 126 months longer than without EBRT. Furthermore, adjusting for resection, patients undergoing EBRT had 0.33 times increased risk of recurrence compared with those who did not (p = 0.03). A majority of patients remained able to live independently despite revision surgery for recurrence. Conclusions The mean follow-up of this patient series represents the longest follow-up duration published to date and demonstrates extended survival in a significant number of patients with hemangiopericytoma. Gross-total resection followed by adjuvant EBRT provides patients with the highest probability of an increased recurrence-free interval and overall survival. Prolonged survival justifies long-term follow-up and aggressive treatment of initial, recurrent, and metastatic disease.

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Minimally invasive lateral retroperitoneal transpsoas interbody fusion for L4–5 spondylolisthesis: clinical outcomes

Journal of Neurosurgery Spine ◽

10.3171/2013.6.spine1340 ◽

2013 ◽

Vol 19 (3) ◽

pp. 314-320 ◽

Cited By ~ 39

Author(s):

Amir Ahmadian ◽

Sean Verma ◽

Gregory M. Mundis ◽

Rod J. Oskouian ◽

Donald A. Smith ◽

...

Keyword(s):

Blood Loss ◽

Interbody Fusion ◽

Screw Fixation ◽

Pedicle Screw Fixation ◽

Disc Space ◽

Percutaneous Pedicle Screw ◽

Sf 36 ◽

The Mean ◽

Percutaneous Pedicle Screw Fixation

Object In this study the authors report on the clinical outcomes, safety, and efficacy of lateral retroperitoneal transpsoas minimally invasive surgery–lumbar interbody fusion (MIS-LIF) at the L4–5 disc space in patients with spondylolisthesis. This approach has become an increasingly popular means of fusion. Its most frequent complication is lumbar plexus injury. Reported complication rates at the L4–5 disc space vary widely in the literature, bringing into question the safety of MIS-LIF for the L4–5 region, especially in patients with spondylolisthesis. Methods The authors retrospectively reviewed prospectively acquired multicenter databases of patients with Grade I and II L4–5 spondylolisthesis who had undergone elective MIS-LIF between 2008 and 2011. Clinical follow-up had been scheduled for 1, 3, 6, 12, and 24 months postoperatively. Outcome measures included estimated blood loss, operative time, length of hospital stay, integrity of construct, complications, fusion rates, visual analog scale (VAS), Oswestry Disability Index (ODI), and 36-Item Short Form Health Survey (SF-36). Results Eighty-four patients with L4–5 MIS-LIF were identified, 31 of whom met the study inclusion criteria: 26 adults with Grade I and 5 adults with Grade II L4–5 spondylolisthesis who had undergone elective MIS-LIF and subsequent posterior percutaneous pedicle screw fixation without surgical manipulation of the posterior elements (laminectomy, foraminotomy, facetectomy). The study cohort consisted of 9 males (29%) and 22 females (71%) with an average age of 61.5 years. The mean total blood loss was 94 ml (range 20–250 ml). The mean hospital stay and follow-up were 3.5 days and 18.2 months, respectively. The average score on the ODI improved from 50.4 preoperatively to 30.9 at the last follow-up (p < 0.0001). The SF-36 score improved from 38.1 preoperatively to 59.5 at the last follow-up (p < 0.0001). The VAS score improved from 69.9 preoperatively to 38.7 at the last follow-up (p < 0.0001). No motor weakness or permanent deficits were documented in any patient. Correction of deformity did not have any neurological complications. All patients had improvement in anterolisthesis. Residual postoperative listhesis across cases was noted in 4 patients (12.9%). Transient anterior thigh numbness (Sensory Dermal Zone III) was noted in 22.5% of patients. Conclusions With its established surgical corridors through the retroperitoneum and psoas muscle, the MIS-LIF combined with posterior percutaneous pedicle screw fixation/reduction is a safe, reproducible, and effective technique for patients with symptomatic degenerative spondylolisthesis at the L4–5 vertebral segment.

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