Sacroiliac Joint Dysfunction Research Articles

Synergistic Benefits of Motor Control Exercises and Balance Training in Sacroiliac Joint Dysfunction: A Randomized Controlled Trial.

Chronic low back pain, frequently attributed to Sacroiliac Joint Dysfunction (SIJD), remains a prevalent concern in orthopedic and physiotherapy arenas. Despite the recognition of motor control exercises (MCEs) and balance training (BT) as potential rehabilitative measures, studies elucidating their combined efficiency for SIJD are scarce. This research study aimed to ascertain the combined and individual efficacies of MCE and BT in alleviating SIJD symptoms. A double-blinded randomized controlled trial was conducted, enrolling 120 SIJD-diagnosed patients aged 30-60 years. Participants were randomly allocated into four groups: MCEs alone, BT alone, combined MCEs and BT, and a control group receiving usual care. Interventions spanned 12 weeks, with evaluations at the start and end and a 24-week follow-up. Primary outcomes encompass pain intensity (assessed via Visual Analog Scale), functional disability (utilizing the Oswestry Disability Index), and life quality (using the Short Form-36). Post a 12-week intervention, participants receiving combined MCE and BT demonstrated substantial improvements in VAS (Median: 3.5, IQR: 2-5; p = 0.0035), ODI (Median: 15%, IQR: 10-20%; p = 0.0035), and SF-36 scores (Median: 70, IQR: 65-75; p = 0.0035) compared to baseline. In contrast, standalone MCE or BT and control groups exhibited lesser efficacy. By the 24-week follow-up, the combined group maintained their gains, outperforming the other groups. The research tools employed showed high reliability with Cronbach's alpha >0.85. Our findings underscore the superior efficacy of integrating motor control exercises (MCEs) and balance training (BT) for Sacroiliac Joint Dysfunction (SIJD)-related chronic low back pain. This combined approach promises enhanced patient outcomes, highlighting its potential as a primary strategy in SIJD management. Future studies should further explore its long-term benefits and integration with other therapeutic modalities.

Sacroiliac joint syndrome is the cause of musculoskeletal back pain

The article considers a clinical case of treatment of one of the variants of nonspecific back pain – sacroiliac joint syndrome. In this case, we tried to demonstrate the importance of timely and accurate determination of the cause of dorsalgia using currently available tools: medical scales, X-ray and MRI examination, diagnostic drug blockade of the pain zone. A scrupulous analysis of complaints, anamnesis and clinical manifestations of the patient, a differential diagnosis with a number of diseases with a similar clinical picture, as well as the choice of treatment tactics based on federal clinical recommendations for the treatment of patients with nonspecific back pain made it possible to quickly determine the diagnosis and cope with the pain syndrome. Therapy with the inclusion of medications, physiotherapy, manual therapy, post-isometric relaxation, physical therapy, posture correction allowed the patient to stop the pain syndrome and return to an active lifestyle. Dexketoprofen (Dexalgin®) was prescribed to relieve the pain syndrome. Optimization of the method of administration of the drug is a step-by-step scheme for prescribing dexketoprofen: parenteral administration of 2 injections (50 mg) intramuscularly daily for 2 days, then transfer to oral Dexalgin intake – 25 mg 2 times a day for 3 days under the guise of proton pump inhibitors – Esomeprazole 40 mg 1 time a day, the use of a patch with a local anesthetic, vitamins of group B – 12 days, therapeutic and diagnostic drug blockades – contributed to a significant reduction in the intensity of the pain syndrome and allowed to prevent its transformation into a chronic process. As a result of the use of complex, pathogenetically based therapy, a rapid positive therapeutic effect was achieved.

Surgical Treatment of Patients with Sacroiliac Joint Syndrome: Comparative Study of Two Implants.

The treatment of patients with ISJ dysfunction is difficult due to the multifactorial causes of pain and various problems in clarification. Treatment includes physical therapy, corticosteroids, prolotherapy, radiofrequency denervation and sacroiliac joint fusion. A new option for the surgical treatment of ISG dysfunction is the Torpedo implant system. For a safe fusion, only 2 implants are needed, which are available in lengths of 30-50mm. The new implant system has been tested in pilot studies for efficacy and biocompatibility with good results. For further documentation for the Torpedo implant system, a comparative study against the iFuse system was carried out.Two different implants were used: Group 1: Deltacor Torpedo, Group 2: iFuse implants (Si-Bone). The data generated during admission and subsequent check-ups (VAS, ODI, opioid use) were entered into an evaluation file set up for this purpose. Follow-up appointments were set at 1 month, 3, 6 and 12 months postoperatively.The data of 65 patients were evaluated comparatively. In all comparisons, only very small effect sizes were found with regard to the differences in the decrease in pain intensities, so that equivalent effectiveness of the two methods could initially be postulated from a clinical point of view. Most patients in both groups reported taking opioids to treat pain before surgery. According to the decrease in pain intensity, opioid treatment could be discontinued in some patients after the operation. After 12 months, the number of patients treated with opioids decreases to 23% in group 1 and to 17% in group 2. The success of the fusions with the two methods can also be proven by image documentation, from which the position of the implants can also be clearly recognised. In no case was there any loosening.Overall, the evaluation of this study allows the conclusion that both implant systems can be successfully used for the treatment of patients with ISJ syndrome. The present results should be confirmed in further comparative studies with the proposed evaluation methods.

Magnetic resonance imaging findings related to sacroiliac joint pain in high-performance athletes.

Sacroiliac joint (SIJ) dysfunction in athletes affects competitiveness. However, the pathology and imaging features have not been clarified. To clarify the association between SIJ pain and MRI findings in high-performance athletes. Fifty-two Japanese high-performance athletes with or without SIJ pain were recruited. MRI short tau inversion recovery (STIR) semi-coronal and semi-axial images of their SIJs were taken. The relationships between high-signal changes in MRI-STIR and SIJ pain and pain duration were investigated. Six athletes with continuous SIJ pain were prospectively followed. The proportion of athletes with high-signal changes in the SIJ was significantly higher among athletes with SIJ pain for one month or more (76.9%, 10/13) than among athletes with SIJ pain for less than one month (18.2%, 2/11) and among athletes without SIJ pain (28.6%, 8/28). High-signal changes on painful SIJs were most often present in the sacrum. In three of the six athletes who were prospectively followed, the high-signal area and intensity on MRI both diminished as their symptoms improved. High-signal changes of the SIJ on MRI-STIR images in high-performance athletes may reflect their SIJ pain.

Patient-Specific 3D Virtual Surgical Planning Using Simulated Fluoroscopic Images to Improve Sacroiliac Joint Fusion

Sacroiliac (SI) joint dysfunction can lead to debilitating pain but can be treated with minimally invasive sacroiliac joint fusion (SIJF). This treatment is commonly performed using 2D fluoroscopic guidance. This makes placing the implants without damaging surrounding neural structures challenging. Virtual surgical planning (VSP) using simulated fluoroscopic images may improve intraoperative guidance. This article describes a workflow with VSP in SIJF using simulated fluoroscopic images and evaluates achieved implant placement accuracy. Ten interventions were performed on 10 patients by the same surgeon, resulting in a total of 30 implants; the median age was 39 years, and all patients were female. The overall mean implant placement accuracy was 4.9 ± 1.26 mm and 4.0 ± 1.44°. There were no malpositioning complications. VSP helped the surgeon understand the anatomy and determine the optimal position and length of the implants. The planned positions of the implants could be reproduced in surgery with what appears to be a clinically acceptable level of accuracy.

Investigation of The Pain and Muscle Strength of Individuals with Sacroiliac Joint Dysfunction and Its Effect on Postural Stability

ABSTRACT
 Sacroiliac joint dysfunction(sijd) is created by repetitive stresses and is ligaments and muscles cause compressive and elastic forces [1].Muscles ligaments and joints are mechanoreceptors and retains stability and bearings of the body movements sense proprioception. [9].However there is a little research investigating the relationship between sijd and balance.
 
 Aim: To investigate the relationship between sijd and static/dynamic balance.
 
 Methods: 20 subjects with sijd and 20subjects without SIJ dysfunction(control group-CG)were evaluated by standing flexion,sitting flexion and Gillet's Test.In addition to sociodemographic features, visual analog scale(VAS) was used for pain assessment.Manuel Muscle Testing (MMT) was used for assessing strength of rectus abdominis and lumbar extensors.Static balance was evaluated by single leg stance test (SLST) with open and closed eyes.Dynamic balance was evaluated by Prokin PK200.
 
 Results: For statistical analysis SPSS program was used.There were significant difference in static balance of the lower extremities without visual feedback between subjects with sijd and CG(p

Effect of sacroiliac fusion on gait, standing balance, and pelvic mobility for unilateral sacroiliac joint dysfunction

BackgroundSacroiliac joint fusion (SIF) has been shown to effectively alleviate pain and improve functional deficits associated with sacroiliac joint dysfunction (SIJD). Previous studies have demonstrated significant improvements in gait function, however, none have reported both over-ground walking and quiescent standing, and additionally, none have included analysis of pelvic kinematics which may contain important information regarding pain avoidant compensatory behaviors. The purpose of this study was to identify objective functional differences between symptomatic and asymptomatic sides of unilateral sacroiliac joint dysfunction (SIJD) patients and to demonstrate the effectiveness of unilateral sacroiliac fusion (SIF) to improve gait and balance function compared to matched controls. MethodsThirteen unilateral SIJD patients were evaluated before and 6 months after SIF and were compared to matched asymptomatic controls. Pain and disability were assessed using visual analog scales and the Oswestry disability index respectively. Over ground walking and standing balance were assessed using 3D joint kinematics and kinetic ground reaction force analyses. ResultsPreoperatively, SIJD patients reported high levels of pain and disability and exhibited significant deficits in gait including elevated step width, reduced hip flexion/extension, and elevated pelvic motion as well as elevated center of pressure sway characteristics during standing. After unilateral SIF, patients reported significant reductions in pain and demonstrated significant improvements in gait including normalization of step width between sides and improved hip motion however elevated pelvic obliquity and rotation motion remained. Improvements in standing balance included reduced coronal sway characteristics and normalization of loading symmetry between sides. ConclusionUnilateral SIF resulted in significant improvements in both gait and balance function among SIJD patients to levels comparable to matched controls, however elevated pelvic motion remained. These findings help inform surgeons on the effectiveness of SIF for unilateral SIJD and provide important information regarding interpretation of functional outcomes.

Systematic Review and Meta-Analysis of Effectiveness of Therapeutic Sacroiliac Joint Injections

BACKGROUND: The sacroiliac joint is one of the proven causes of low back and lower extremity pain, ranging from 10% to 25% in patients with persistent axial low back pain without disc herniation, discogenic pain, or radiculitis. Despite the difficulty of diagnosis, multiple therapeutic modalities including surgical and nonsurgical interventions have been utilized. Among the interventional modalities, intraarticular injections are commonly utilized. OBJECTIVE: To evaluate the therapeutic effectiveness of intraarticular injections in the sacroiliac joint. STUDY DESIGN: A systematic review and meta-analysis of randomized controlled trials (RCTs) and observational studies of the therapeutic effectiveness of intraarticular injections of the sacroiliac joint utilizing the Preferred Reporting Items For Systematic Reviews And Meta-Analyses (PRISMA) checklist. METHODS: The available literature on therapeutic sacroiliac joint intraarticular injections was reviewed. The quality assessment criteria utilized were the Cochrane review criteria to assess risk of bias, the Interventional Pain Management Techniques – Quality Appraisal of Reliability and Risk of Bias Assessment (IPM-QRB) for randomized therapeutic trials, and the Interventional Pain Management Techniques – Quality Appraisal of Reliability and Risk of Bias Assessment for Nonrandomized Studies (IPM-QRBNR) for nonrandomized studies. The level of evidence was based on best evidence synthesis with modified grading of qualitative evidence from Level I to Level V. Data collection was performed including literature published from 1966 through December 2022, as well as manual searches of the bibliographies of known articles. OUTCOME MEASURES: Primary outcome measures include pain relief and improvement in functional status at 3 months for a single intervention. Only the studies performed under fluoroscopic guidance, with at least 3 months of follow-up were included. Duration of relief was categorized as short-term (< 6 months) and long-term (> 6 months). RESULTS: Based on the qualitative and quantitative analyses with a single-arm meta-analysis and the Grading of Recommendations, Assessment, Development and Evaluations (GRADE) system of appraisal, and the inclusion of 11 RCTs (5 positive, 6 negative) and 3 observational studies (2 positive, one negative), the evidence was Level III or fair in managing low back pain of sacroiliac joint origin with sacroiliac joint injections. LIMITATIONS: This systematic review and meta-analysis are limited by lack of eligible studies, inconsistencies among the available studies, variations in techniques, variable diagnostic standards for inclusion criteria, and finally, the inability to correlate the results and perform an optimal systematic review and meta-analysis. CONCLUSION: The present systematic review and meta-analysis show an inability to perform conventional dual-arm analysis, whereas a single-arm meta-analysis demonstrated a difference of approximately 3 points on the Numeric Rating Scale (NRS) and 8 points on the Oswestry Disability Index (ODI). However, there were no studies that considered >= 50% relief as the criterion standard. Overall, the qualitative and quantitative evidence combined shows Level III or fair evidence for therapeutic sacroiliac joint injections for managing low back pain of sacroiliac joint origin. KEY WORDS: Chronic low back pain, sacroiliac joint pain, sacroiliac joint dysfunction, sacroiliitis, sacroiliac joint injection, sacroiliac joint nerve blocks, radiofrequency ablation, conventional radiofrequency, pulsed radiofrequency

Проявление дисфункции в крестцово-подвздошном суставе при боли в нижней части спины

The aim of the study was to identify the sacroiliac joint dysfunction in patients with various manifestations of vertebrogenic pain in the low back and pelvis and to determine the regimen ofmanual therapy techniques. A comprehensive assessment of examination and treatment of patients with the sacroiliac joint syndrome was carried out. The positive role of the combined treatment including drug therapy and manual therapy was noted. A decrease in the pain syndrome intensity was found in 79.5% of cases, in all groups of patients, already at the beginning of treatment.

Effects of Laser and Sacroiliac Joint Mobilization for Sacroiliac Joint Dysfunction

To evaluate the effects of laser and sacroiliac join mobilization for sacroiliac joint dysfunction.The SI Joint`s primary functions are to provide to distribute trunk load to the lower limbs. Lowback discomforts are frequently caused by sacroiliac joint dysfunction (SI) Joint, which can bedifficult to diagnose. Prolonged standing or sitting postures can also make pain worse. Low Intensity Laser Therapy also known as Low Level Laser Therapy is thought to work by inducing a photochemical-reaction (Response) to light (Laser) Physiotherapist frequently Recommend spine mobilization to treat Musculoskeletal Problems. The Amplitude of Oscillating mobilization can be classified as considerable (GradesII and III) or little (Grades I and IV) depending on the possible range of motion. 5 Large amplitude oscillations excite more mechanoreceptors and hence reduce pain more effectively than small amplitude oscillations. To evaluate the effects of laser therapy and laser therapy with sacroiliac joint mobilization in patient with sacroiliac joint dysfunction. The total number of test subjects was 40. The Group(A) 20 Samples) and Group(B) 20 Samples, both groups pre and post-test values noted NPRS scale. Group-A Laser therapy was given by patient being in prone lying position and Group-B Laser therapy with sacroiliac joint mobilization techniques was given in being pronelying position. Both Groups treatment Will be given 4 weeks for Thrice a week for 30 minutes. This study was conducted as a experimental study. The sample were collected by convenient sampling technique. The data that had been gathered was statistically analyzed using an unpaired t-test. Compared to the laser group, the Laser with sacroiliac joint mobilization group exhibits significant effects in lowering pain and improving physical functional activity, as assessed by NPRS scale. It is concluded that laser therapy with sacroiliac joint mobilization technique was found to be more effective than laser therapy in sacroiliac joint dysfunction. Key Words: Sacroiliac joint dysfunction, Laser, Maitland mobilization Technique

P9. Differences in objective gait and balance function of symptomatic and asymptomatic sides among unilateral sacroiliac joint dysfunction patients before and after sacroiliac joint fusion

P9. Differences in objective gait and balance function of symptomatic and asymptomatic sides among unilateral sacroiliac joint dysfunction patients before and after sacroiliac joint fusion

Evaluation of a New Treatment Strategy for Geriatric Fragility Fractures of the Posterior Pelvic Ring Using Sensor-Supported Insoles: A Proof-of-Concept Study.

The incidence of fragility fractures of the pelvis (FFPs) is currently rising. Surgical treatment, which is performed using sacroiliac screws, is complicated by compromised bone quality, oftentimes resulting in implant failure. The iFuse implant system aims to improve attachment and durability with promising results for sacroiliac dysfunction, though data for its feasibility on FFPs are rare. Consequently, this study aims to evaluate the feasibility of the iFuse for FFPs. A total of 10 patients with FFPs were treated with the iFuse in this study. Pre- and postoperatively, both mobility using an established insole force sensor for an inpatient gait analysis and general well-being and pain using questionnaires were evaluated. When comparing pre- and postoperative findings, this study demonstrated a significant increase in the average (8.14%) and maximum (9.4%) loading (p < 0.001), a reduction in pain, as measured by the visual analog scale (VAS), from 4.60 to 2.80 at rest (p = 0.011) and from 7.00 to 4.40 during movement (p = 0.008), an increase in the Barthel Index by 20 points (p < 0.001) and an increase in the Parker Mobility Score by 2.00 points (p = 0.011). All this contributes to the possibility of early postoperative mobilization and improved general well-being, ultimately preventing the late consequences of postoperative immobilization and maintaining patients autonomy and contentment.

The therapeutic effectiveness of fluoroscopically guided intra-articular sacroiliac joint injections in patients with sacroiliac joint dysfunction, an observational study

ObjectiveThe goal of this project is to evaluate the therapeutic effectiveness of fluoroscopically guided intra-articular sacroiliac (SI) joint injections in patients with diagnosed SI joint dysfunction. Patient reported outcomes related to pain and quality of life measures were evaluated. DesignThis is a retrospective observational study of patients receiving intra-articular SI joint injections under a single provider at the Cleveland Clinic from September 2013 to April 2019. Three hundred fifty-one patients received injections and were administered patient reported outcomes (PROs) including the Numeric Rating Scale, Patient Health Questionnaire, Pain Disability Questionnaire, EuroQol-5 Dimensions Questionnaire, and PROMIS-GH Physical and Mental Health at baseline and approximately 1-, 3-, 6-, 12-, and 24-month time points during follow-up appointments. The primary outcome measure was the percentage of patients receiving their first injection who achieved minimal clinically important difference (MCID) in these PROs at each follow-up time point. Secondary outcomes were the percentage of patients achieving MCID in each PRO for each injection analyzed (including patients who received repeat injections) and average change in these PROs at each time point for first and all injections. ResultsA total of 351 patients were included in the analysis, with varying time points of follow-up. The average patient age was 52.3 (±14.9) years with 74.9% female and 59.0% white. For first time injections, the MCID was achieved for Numeric Rating Scale in 60.6%, 42.1%, 47.5%, and 32.5% of patients at 1-, 3-, 6-, and 12-month follow-up, respectively. There was significant improvement in PROMIS-GH Physical Health at 3-month, 6-month, and 1-year follow-up. There was no significant improvement in PROMIS-GH Mental Health at any follow-up time points. ConclusionsFluoroscopically guided intra-articular SI joint injection for SI joint dysfunction is effective in providing therapeutic pain relief exceeding MCID values in greater than 60% of patients at 1 month and greater than 40% at 3- and 6- months after injection. However, while this intervention may provide significant pain relief and improvement in function, it may not address the psychosocial aspect of chronic pain to the same extent.

Presentation, Diagnosis, and Treatment of Sacroiliac Joint Dysfunction

Presentation, Diagnosis, and Treatment of Sacroiliac Joint Dysfunction

Presentation, Diagnosis, and Treatment of Sacroiliac Joint Dysfunction

Presentation, Diagnosis, and Treatment of Sacroiliac Joint Dysfunction

Oblique anterior pelvic external fixator for intraoperative reduction of rotationally unstable pelvic ring injuries.

Incomplete sacroiliac joint injuries are often associated with external rotation and extension deformities on the injured hemipelvis. To appropriately correct this deformity, an oblique reduction force from caudal to cranial and lateral to medial is helpful. These injuries are often associated with traumatic disruption of the pubic symphysis. However, in injuries without traumatic disruption to the pubic symphysis, a two-pin oblique anterior external fixator can be used to obtain and maintain reduction of the sacroiliac joint, while percutaneous fixation is subsequently placed. Through a small case series and three specific patient examples, we demonstrate that the oblique anterior external fixator frame is a simple and effective strategy with the reduction and stabilization process of these multiplanar hemipelvis deformities.

To Determine the Efficacy of Mulligan Mobilisation and Muscle Energy Technique in Sacroiliac Joint Dysfunction: A Single Blinded, Randomized Clinical Trial

The Sacroiliac Joint Dysfunction may lead to hypermobility or hypomobility at the joint, resulting in pain andirritation. Patient complains of dull aching pain on the affected side. The pain increases during the activities whileturning, sitting, bending or acquired standing posture.The pain gets referred to either groin, gluteal region or the posterior aspect of the thigh. With or without associatednumbness, in groin region and pain on one side is more common than bilateral. This Sacroiliac joint dysfunctioncan be managed conservatively using physical agent modalities such as electrotherapy, laser therapy, ultrasound,longwave, rest, exercises, or using manual mobilisation.Purpose Of the Study: To determine the effectiveness of Mulligan Mobilisation and Muscle Energy Technique inSacroiliac Joint Dysfunction.Material And Method Used: 700 subjects were screened to include 72 subjects with diagnosis of sacroiliac jointdysfunction and further were haphazardly divided into two groups viz. Muscle Energy Technique therapy groupand Mobilisation group via block randomization, depending on severity of pain (mild, moderate, severe) usinglottery method.Results: The values of Visual Analogue Scale, Modified Oswestry Disability Questionnaire and Pain Pressurethreshold within the group were analysed using Paired t-test and between the groups were analysed usingIndependent t-test.Conclusion: MET and Mobilisation both techniques are operative in treatment of Sacroiliac Joint Dysfunction.

Minimally Invasive Postero-Inferior Sacroiliac Joint Fusion: Surgical Technique and Procedural Details.

(1) Background: Minimally invasive sacroiliac joint (SIJ) fusion is the preferred surgical intervention to treat chronically severe pain associated with SIJ degeneration and dysfunction. (2) Methods: This paper details the ten-step surgical procedure associated with the postero-inferior approach using the PsiF™ DNA Sacroiliac Joint Fusion System. (3) Results: The posterior surgical approach with an inferior operative trajectory (postero-inferior) utilizes easily identifiable landmarks to provide the safest, most direct access to the articular joint space for transfixing device placement. Implanting the device through the subchondral bone provides maximum fixation and stabilization of the joint by utilizing an optimal amount of cortical bone-implant interface. Approaching the joint from the inferior trajectory also places the implant perpendicular to the S1 endplate at a "pivot point" near the sacral axis of rotation, which addresses the most significant motion of the joint. (4) Conclusions: Further observational data from real-world clinical use are encouraged to further validate this procedure as the surgical preference for minimally invasive SIJ fusion.

Numerical analysis of the effects of padded pelvic belts as a treatment for sacroiliac joint dysfunction.

Pain related to the sacroiliac joint (SIJ) accounts for low back pain in 15%-30% of patients. One of the most common treatment options is the use of pelvic belts. Various types of pelvic belts exist; however, the mechanisms underlying treatment and their effectiveness remain unclear to date. To analyze stress distribution in the pelvis when a pelvic rubber belt or a padded pelvic belt is applied, to assess the effectiveness of treatment from a numerical biomechanical perspective. The pressure distribution at the pelvic belts was measured using a device and subsequently modeled with the finite element method of a pelvis with soft tissues. The stress environment when wearing a pelvic belt in a double-leg stance was simulated. With the application of pelvic belts, the innominate bone rotated outward, which was termed an out-flare. This caused the SIJ to compress and cause reduction in sacrotuberous, sacrospinous, interosseous, and posterior sacroiliac ligament loading. Padded pelvic belts decreased the SIJ displacement to a greater extent than in pelvic rubber belts. Pelvic belts aid in compressing the SIJ and reduce its mobility.

Bilateral sacroiliac joint fusion in long constructs using self-harvesting porous S2-alar iliac screws with an integrated tulip: technical considerations and early clinical and radiographic experience.

The incidence of sacroiliac joint (SIJ) dysfunction after lumbosacral fusion is high. Upfront bilateral SIJ fusion using novel fenestrated self-harvesting porous S2-alar iliac (S2AI) screws could reduce the incidence of SIJ dysfunction and need for subsequent SIJ fusion. In this study, the authors report their early clinical and radiographic results of SIJ fusion using this novel screw. The authors began using self-harvesting porous screws in July 2022. This is a retrospective review of consecutive patients at a single institution who underwent long thoracolumbar surgery with extension to the pelvis using this porous screw. Radiographic parameters of regional and global alignment were collected preoperatively and at the time of last follow-up. The incidence of intraoperative complications and need for revision were collected. The incidences of mechanical complications, including screw breakage, implant loosening/pullout, and screw cap dislocation at the time of last follow-up were also collected. Ten patients with a mean age of 67 years were included, 6 of whom were male. Seven patients had a thoracolumbar construct with extension to the pelvis. Three patients had upper instrumented vertebrae at the proximal lumbar spine. Intraoperative breach was not encountered in any of the patients (0%). Postoperatively, 1 patient (10%) had screw breakage at the neck of the tulip of the modified iliac screw discovered at routine follow-up without clinical sequalae. Use of self-harvesting porous S2AI screws incorporated into long thoracolumbar constructs was safe and feasible, demanding unique technical considerations. Long-term clinical and radiographic follow-up with a large patient cohort is necessary to determine their durability and efficacy to achieve SIJ arthrodesis and prevent SIJ dysfunction.