scholarly journals Analysis of Spinopelvic Parameters with L5 as the New Sacrum after Fusion in High-Grade Spondylolisthesis: A Possible Explanation for Satisfactory Results with <italic>In-Situ</italic> Fusion

2018 ◽  
Vol 12 (1) ◽  
pp. 103-111
Author(s):  
Shanmuganathan Rajasekaran ◽  
Gurudip Das ◽  
Siddharth Narasimhan Aiyer ◽  
Rishi Mugesh Kanna ◽  
Ajoy Prasad Shetty
Keyword(s):  
Functional Outcomes ◽  
Short Form ◽  
Case Series ◽  
Sacral Slope ◽  
High Grade ◽  
Spinopelvic Parameters ◽  
Sagittal Vertical Axis ◽  
Surgical Methods ◽  
Reduction Group

<sec><title>Study Design</title><p>Retrospective case series.</p></sec><sec><title>Purpose</title><p>To correlate functional outcomes with spinopelvic parameters in patients with high-grade spondylolisthesis (HGS) treated with instrumented <italic>in-situ</italic> surgery or reduction and fusion.</p></sec><sec><title>Overview of Literature</title><p>Satisfactory functional outcomes are reported with reduction and <italic>in-situ</italic> fusion strategies in HGS. However, reasons for this are unclear. We hypothesize that following lumbosacral fusion, the L5 becomes part of the sacrum, which improves spinopelvic parameters, resulting in equivalent functional outcomes in both surgical methods.</p></sec><sec><title>Methods</title><p>Twenty-six patients undergoing HGS (reduction group A, 13; <italic>in-situ</italic> group B, 13) were clinically evaluated using the Oswestry Disability Index (ODI), short form-12 (SF-12), and Visual Analogue Scale (VAS) scores. Spinopelvic parameters, including pelvic incidence, pelvic tilt (PT), sacral slope (SS), lumbar lordosis (LL), lumbosacral kyphosis (LSK) angle, and sacrofemoral distance (SFD) were measured preoperatively from S1 and postoperatively from L5 as the new sacrum at 1 year follow-up. Sagittal alignment was assessed using the sagittal vertical axis.</p></sec><sec><title>Results</title><p>Both groups were comparable in terms of age, sex, severity of slip, and preoperative spinopelvic parameters (<italic>p</italic>&gt;0.05). Postoperative VAS, SF-12, and ODI scores significantly improved in both groups (<italic>p</italic>&lt;0.05). Compared with preoperative values, the mean postoperative PT, SFD, and LSK significantly changed in both groups. In reduction group, PT changed from 26.98° to 10.78°, SFD from 61.24 to 33.56 mm, and LSK from 74.76° to 109.61° (<italic>p</italic>&lt;0.05). In <italic>in-situ</italic> fusion group PT changed from 26.78° to 11.08°, SFD from 62.9 to 36.99 mm, and LSK from 67.23° to 113.38° (<italic>p</italic>&lt;0.05 for all). In both groups, SS and LL did not change significantly (<italic>p</italic>&gt;0.05).</p></sec><sec><title>Conclusions</title><p>After fusion, the L5 becomes the new sacrum and influences spinopelvic parameters to change favorably. This possibly explains why reduction and <italic>in-situ</italic> fusion achieve equivalent functional outcomes in HGS.</p></sec>

scholarly journals ARTHROSCOPIC LATARJET TECHNIQUE COMBINED WITH ENDOBUTTONS: FUNCTIONAL OUTCOMES IN 26 CASES

2018 ◽  
Vol 26 (5) ◽  
pp. 328-331 ◽  
Author(s):  
Alexandre Tadeu do Nascimento ◽  
Gustavo Kogake Claudio ◽  
Pedro Bellei Rocha ◽  
Juan Pablo Zumárraga ◽  
Olavo Pires de Camargo
Keyword(s):  
Shoulder Instability ◽  
Functional Outcomes ◽  
Short Form ◽  
Case Series ◽  
Anterior Shoulder Instability ◽  
Latarjet Procedure ◽  
Glenohumeral Instability ◽  
Duration Of Symptoms ◽  
Arthroscopic Latarjet ◽  
Arthroscopic Latarjet Procedure

ABSTRACT Objective: The cause of anterior shoulder instability is not fully understood and surgical management remains controversial. The objective of this study was to evaluate the results of patients undergoing arthroscopic Latarjet procedure with endobuttons. Methods: A retrospective study of 26 patients undergoing arthroscopic Latarjet procedure with endobuttons to treat anterior shoulder instability. Patients with previous glenohumeral instability, failure of Bankart procedure or Instability Severity Index Score (ISIS) greater than or equal to 6, were included. Patients were assessed by: DASH, UCLA, Rowe, Visual Analog Scale (VAS) of pain and Short-Form 36 (SF36) scores. Correct position and consolidation of the graft were evaluated. Results: Mean age was 31.5 years (16 to 46). Preoperative duration of symptoms was 1.7 years (1 month to 10 years). Mean follow-up was 14.3 (6 to 24) months. Mean postoperative scores were: 10 points in DASH; 1.6 in VAS, where 23 (88%) patients experienced mild pain and 3 (12%) moderate pain; 89 in Rowe; 32 in UCLA and 78 in SF-36. Positioning of the graft was correct in 25 (96%) cases, and was consolidated in 23 (88%). We had two cases of graft fracture (7%) and postoperative migration (7%). Conclusion: Surgical treatment using arthroscopic Latarjet with endobuttons is safe and effective, producing good functional outcomes in patients. Level of Evidence IV, Case Series.

scholarly journals Complications in Minimally Invasive Versus Open Surgery for Intermediate- to High-Grade Spondylolisthesis: A 10-Year Retrospective, Multicenter Experience

Neurosurgery ◽  
2019 ◽  
Vol 66 (Supplement_1) ◽  
Author(s):  
Asad Mehmood Lak ◽  
Abdullah M Abunimer ◽  
Amina Rahimi ◽  
Ian Tafel ◽  
Hasan Aqdas Zaidi
Keyword(s):  
Minimally Invasive ◽  
Surgical Approach ◽  
Open Reduction ◽  
Open Surgery ◽  
No Reduction ◽  
High Rate ◽  
High Grade ◽  
Neural Injury ◽  
Reduction Group

Abstract INTRODUCTION High-grade spondylolisthesis is a relatively uncommon condition. The optimal surgical approach for management remains debatable. Although in-situ fusion is preferred due to its lower risk of neural injury, it does not correct spinal alignment. In contrast, reduction corrects the deformity and provides a high rate of fusion, but has the potential for high rates of neural injury. We herein report our experience and surgical outcomes following minimally invasive versus open management of intermediate- to high-grade spondylolisthesis. METHODS A multicenter, retrospective cohort analysis of adult patients aged more than 18 yr with grade II or higher spondylolisthesis, who underwent surgery from January 2008 until February 2019, was performed. RESULTS Sixty-two patients were included in the final analysis. A total of 41 patients were treated with an open approach and 21 with a minimally invasive surgical approach (MIS). More specifically, 18 patients underwent in-situ fusion, 11 underwent MIS reduction, and 33 had an open reduction. The total rate of complications was 40.3%. The rate of complications in the MIS group was 52.3% compared to 34.1% in the open surgery group (P = .166). The rate of complications was 27.8% in the in-situ fusion group, 72.7% in the MIS-reduction group, and 36.4% in the open-reduction group. Our comparisons of the rate of complications in the no-reduction group vs the MIS-reduction group, and the MIS-reduction group vs the open-reduction group were statistically significant (P = .027 and P = .07, respectively). However, there was no statistically significant difference between the rate of complications in the no-reduction group vs the open-reduction group (P = .757), nor between the rate of complications in the MIS group vs the open surgery group (P = .166). CONCLUSION MIS reduction is associated with a high rate of complications in the management of high-grade spondylolisthesis.

scholarly journals Increasing pelvic incidence is associated with more global sagittal imbalance in ankylosing spondylitis with thoracolumbar kyphosis

2019 ◽  
Author(s):  
Diyu Song ◽  
Guoquan Zheng ◽  
Tianhao Wang ◽  
Dengbin Qi ◽  
Yan Wang
Keyword(s):  
Ankylosing Spondylitis ◽  
Pelvic Incidence ◽  
Vertical Axis ◽  
Control Group ◽  
Sacral Slope ◽  
Sagittal Imbalance ◽  
Thoracolumbar Kyphosis ◽  
Spinopelvic Parameters ◽  
Sagittal Vertical Axis ◽  
The Relationship

Abstract Background: Ankylosing spondylitis (AS) patients with kyphosis have an abnormal spinopelvic alignment and pelvic morphology. Most of them focus on the relationship of pelvic tilt (PT) or sacral slope (SS) and deformity, and relatively few studies have addressed the relationship between pelvic incidence (PI) and kyphosis in AS patients. The purpose of this study is to analyze the correlation between pelvic incidence (PI) and the spinopelvic parameters describing local deformity or global sagittal balance in AS patients with thoracolumbar kyphosis. Methods: A total of 94 patients with AS (91 males and 3 females) and 30 controls were reviewed. Sagittal spinopelvic parameters, including PI, PT, SS, thoracic kyphosis (TK), thoracolumbar kyphosis (TLK), lumbar lordosis(LL), sagittal vertical axis(SVA), T1 pelvic angle(TPA), spinosacral angle(SSA) and spinopelvic angle(SPA) were measured. Statistical analysis was performed to identify the correlation of PI with other parameters. Results: Compared with the control group, the AS patients had significantly higher PI(47.4˚ vs. 43.2˚, P<0.001). PI in AS patients was found to be significantly positively correlated with TPA(r=0.533, R 2 =0.284, P<0.001), and negatively correlated with SPA(r=-0.504, R 2 =0.254, P<0.001). However, no correlations were found between PI and SVA, SSA, TK, TLK or LL in AS patients. Conclusion: The value of PI in AS patients with kyphosis was significantly higher than that of controls. Correlation analysis revealed that increasing PI was significantly correlated with more global sagittal imbalance, not with the local deformity in AS patients with thoracolumbar kyphosis.

Arthroscopic Microfracture for Osteochondral Lesions of the Talus: Functional Outcomes at a Mean of 6.7 Years in 165 Consecutive Ankles

2019 ◽  
Vol 48 (1) ◽  
pp. 153-158 ◽  
Author(s):  
Seung-Won Choi ◽  
Gun-Woo Lee ◽  
Keun-Bae Lee
Keyword(s):  
Functional Outcomes ◽  
Short Form ◽  
Arthroscopic Surgery ◽  
Case Series ◽  
Osteochondral Lesions ◽  
Study Cohort ◽  
Arthroscopic Microfracture ◽  
Sf 36 ◽  
The Mean

Background: Arthroscopic microfracture for osteochondral lesions of the talus (OLT) has shown good functional outcomes. However, some studies have reported that functional outcomes deteriorate over time after surgery. Purpose: To use various functional scoring systems to evaluate functional outcomes in a large sample of patients with OLT treated by arthroscopic microfracture. Study Design: Case series; Level of evidence, 4. Methods: The study cohort consisted of 165 ankles (156 patients) that underwent arthroscopic microfracture for small to mid-sized OLT. The mean lesion size was 73 mm2 (range, 17-146 mm2), and the mean follow-up period was 6.7 years (range, 2.0-13.6 years). The Foot and Ankle Outcome Score (FAOS), American Orthopaedic Foot & Ankle Society (AOFAS) ankle-hindfoot scale, visual analog scale (VAS) for pain, and 36-Item Short Form Health Survey (SF-36) were used to compare the functional outcomes between the preoperative and final follow-up assessments. Results: The mean FAOS significantly improved in regard to all subscores ( P < .001). The AOFAS ankle-hindfoot scale showed an improvement from 71.0 points (range, 47.0-84.0) preoperatively to 89.5 points (range, 63.0-100) at the final follow-up ( P < .001). The VAS score showed an improvement from 6.2 points (range, 4.0-9.0) preoperatively to 1.7 points (range, 0-6.0) at the final follow-up ( P < .001). The mean SF-36 score improved from 62.4 points (range, 27.4-76.6) preoperatively to 76.2 points (range, 42.1-98.0) at the final follow-up ( P < .001). Among 165 ankles, 22 ankles (13.3%) underwent repeat arthroscopic surgery for evaluation of repaired cartilage status. Conclusion: Arthroscopic microfracture showed good functional outcomes and improved quality of life with maintenance of satisfactory outcomes at a mean follow-up of 6.7 years. Therefore, arthroscopic microfracture seems to be reliable as a first-line treatment for OLT at an intermediate-term follow-up.

scholarly journals Ultrasound and Functional Assessment of Transtendinous Repairs of Partial-Thickness Articular-Sided Rotator Cuff Tears

2017 ◽  
Vol 5 (3) ◽  
pp. 232596711769737 ◽  
Author(s):  
Roger V. Ostrander ◽  
Jeffrey M. Klauser ◽  
Sanjay Menon ◽  
Joshua G. Hackel
Keyword(s):  
Los Angeles ◽  
Rotator Cuff ◽  
Functional Outcomes ◽  
Case Series ◽  
Rotator Cuff Tears ◽  
High Grade ◽  
Partial Thickness ◽  
Ultrasound Evaluation ◽  
Functional Scores

Background: Partial-thickness articular-sided rotator cuff tears are a frequent source of shoulder pain. Despite conservative measures, some patients continue to be symptomatic and require surgical management. However, there is some controversy as to which surgical approach results in the best outcomes for grade 3 tears. Hypothesis/Purpose: The purpose of this study was to evaluate repair integrity and the clinical results of patients treated with transtendinous repair of high-grade partial-thickness articular-sided rotator cuff tears. Our hypothesis was that transtendinous repairs would result in reliable healing and acceptable functional outcomes. Study Design: Case series; Level of evidence, 4. Methods: Twenty patients with a minimum follow-up of 2 years were included in the study. All patients underwent arthroscopic repair of high-grade partial-thickness rotator cuff tears utilizing a transtendinous technique by a single surgeon. At latest follow-up, the repair integrity was evaluated using ultrasound imaging, and functional scores were calculated. Results: Ultrasound evaluation demonstrated that 18 of 20 patients had complete healing with a normal-appearing rotator cuff. Two patients had a minor residual partial tear. Sixteen of 20 patients had no pain on visual analog scale. Four patients complained of mild intermittent residual pain. All patients were rated as “excellent” by both the University of California at Los Angeles Shoulder Score and the Simple Shoulder Test. Conclusion: The transtendon technique for the repair of articular-sided high-grade partial rotator cuff tears results in reliable tendon healing and excellent functional outcomes.

Does vertebral level of pedicle subtraction osteotomy correlate with degree of spinopelvic parameter correction?

2011 ◽  
Vol 14 (2) ◽  
pp. 184-191 ◽  
Author(s):  
Virginie Lafage ◽  
Frank Schwab ◽  
Shaleen Vira ◽  
Robert Hart ◽  
Douglas Burton ◽  
...  
Keyword(s):  
Lumbar Lordosis ◽  
Thoracic Kyphosis ◽  
Sagittal Plane ◽  
Pedicle Subtraction Osteotomy ◽  
Sacral Slope ◽  
Spinopelvic Parameters ◽  
Sagittal Vertical Axis ◽  
Significant Difference ◽  
Spinopelvic Parameter ◽  
Spinal Imbalance

Object Pedicle subtraction osteotomy (PSO) is a spinal realignment technique that may be used to correct sagittal spinal imbalance. Theoretically, the level and degree of resection via a PSO should impact the degree of sagittal plane correction in the setting of deformity. However, the quantitative effect of PSO level and focal angular change on postoperative spinopelvic parameters has not been well described. The purpose of this study is to analyze the relationship between the level/degree of PSO and changes in global sagittal balance and spinopelvic parameters. Methods In this multicenter retrospective study, 70 patients (54 women and 16 men) underwent lumbar PSO surgery for spinal imbalance. Preoperative and postoperative free-standing sagittal radiographs were obtained and analyzed by regional curves (lumbar, thoracic, and thoracolumbar), pelvic parameters (pelvic incidence and pelvic tilt [PT]) and global balance (sagittal vertical axis [SVA] and T-1 spinopelvic inclination). Correlations between PSO parameters (level and degree of change in angle between the 2 adjacent vertebrae) and spinopelvic measurements were analyzed. Results Pedicle subtraction osteotomy distribution by level and degree of correction was as follows: L-1 (6 patients, 24°), L-2 (15 patients, 24°), L-3 (29 patients, 25°), and L-4 (20 patients, 22°). There was no significant difference in the focal correction achieved by PSO by level. All patients demonstrated changes in preoperative to postoperative parameters including increased lumbar lordosis (from 20° to 49°, p < 0.001), increased thoracic kyphosis (from 30° to 38°, p < 0.001), decreased SVA and T-1 spinopelvic inclination (from 122 to 34 mm, p < 0.001 and from +3° to −4°, p < 0.001, respectively), and decreased PT (from 31° to 23°, p < 0.001). More caudal PSO was correlated with greater PT reduction (r = −0.410, p < 0.05). No correlation was found between SVA correction and PSO location. The PSO degree was correlated with change in thoracic kyphosis (r = −0.474, p < 0.001), lumbar lordosis (r = 0.667, p < 0.001), sacral slope (r = 0.426, p < 0.001), and PT (r = −0.358, p < 0.005). Conclusions The degree of PSO resection correlates more with spinopelvic parameters (lumbar lordosis, thoracic kyphosis, PT, and sacral slope) than PSO level. More importantly, PSO level impacts postoperative PT correction but not SVA.

scholarly journals Clinical, functional and radiological spinopelvic balance parameters assessment after transforaminal lumbar interbody fusion in grade 1 spondylolisthesis

2020 ◽  
Vol 8 (1) ◽  
pp. 232
Author(s):  
Ninad Sawant ◽  
Mathew Abraham ◽  
Tobin George ◽  
Easwer H. V. ◽  
Ganesh Divakar
Keyword(s):  
Short Form ◽  
Degenerative Spondylolisthesis ◽  
Vertical Axis ◽  
Transforaminal Lumbar Interbody Fusion ◽  
General Information ◽  
Sacral Slope ◽  
Sagittal Vertical Axis ◽  
Spinal Balance ◽  
Functional Parameters ◽  
Sagittal Spinal Balance

Background: The aim was to study effectiveness of TLIF procedure by assessing clinical and radiological spinal sagittal parameters pre and postoperatively.Methods: 8 patients who underwent TLIF procedure after diagnosis of spondylolisthesis studied prospectively. After recording general information, symptomatology, functional parameters were evaluated using visual analogue scale (VAS), Oswestry disability index (ODI), short form 12 (SF 12) and radiological sagittal balance parameters were assessed by calculating sagittal vertical axis (SVA), lumbar lordosis (LL), pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), preoperatively and postoperatively during follow up at 1 and 3 months.Results: We operated 4 (50%) patients at L4-L5 level of degenerative spondylolisthesis, 1 (12.5%) patient of degenerative spondylolisthesis at L5-S1 level and 3 (12.5%) patients of isthmic spondylolisthesis at L5-S1 level. All patients were grade 1 spondylolisthesis according Meyerding classification. After surgery all sagittal spinal balance parameters were not found to be statistically changed from the baseline, although there was minimum improvement. Regarding the clinical outcome measures, both VAS (<0.0001), ODI (<0.0001), and SF12 (<0.0001) improved after surgery significantly.Conclusions: In most case of grade 1 spondylolisthesis, there was only a minimal imbalance of the sagittal spinal balance parameters and so in situ fusion can be done. Even if a complete reduction of spondylolisthesis was not achieved during surgery, there was correction of a few of the parameters of spinal balance which were deranged preoperatively. Overall TLIF is very good procedure in terms of improvement in clinical and functional parameters in grade 1 spondylolisthesis. 

scholarly journals High-Grade Patellar Chondral Defects: Promising Results From Management With Osteochondral Autografts

2020 ◽  
Vol 8 (7) ◽  
pp. 232596712093313
Author(s):  
David Figueroa ◽  
Rafael Calvo Rodriguez ◽  
Rodrigo Donoso ◽  
Jaime Espinoza ◽  
Alex Vaisman ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Cartilage Repair ◽  
Functional Outcomes ◽  
Cruciate Ligament ◽  
Young Patients ◽  
Case Series ◽  
High Grade ◽  
Chondral Defects ◽  
Imaging Results

Background: Patellar chondral defects represent up to 34.6% of defects found during routine arthroscopy. Surgical management has evolved during the past 20 years in an effort to develop techniques to replace hyaline cartilage. Currently, the only technique that achieves this is osteochondral autologous transfer (OAT). Although good and excellent results have often been reported at midterm and long-term follow-up for femoral lesions, little is known about isolated patellar defects. Purpose: To assess clinical and imaging results of patients treated with OAT for high-grade patellar defects. Study Design: Case series; Level of evidence, 4. Methods: This was a retrospective study on all patients who received OAT for high-grade symptomatic patellar chondral defects between 2010 and 2018 at our institution. The study included patients younger than 40 years of age with anterior knee pain and a grade 4 International Cartilage Repair Society patellar chondral defect between 1 and 2.5 cm2. Patients with surgery in other knee compartments, concomitant anterior cruciate ligament ruptures, infection, rheumatoid arthritis, and degenerative lesions were excluded. Six months postoperatively, all patients underwent magnetic resonance imaging (MRI) to allow assessment of graft integrity via the MOCART (Magnetic Resonance Observation of Cartilage Repair Tissue) score to evaluate morphologic features and integration. Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and Kujala scores were used to assess functional outcomes at final follow-up. Results: A total of 26 patients who received a patellar OAT were included. Most patients were male (88.4%), and the mean ± SD age was 28.5 ± 9.7 years. Patellar chondral defects had a median size of 180 mm2 (range, 64-250 mm2), and patients received a median of 1 autograft (range, 1-3). Functional outcomes assessed at a minimum of 1 year after surgery showed a mean Kujala score of 90.42 ± 6.7 and a mean WOMAC score of 95 ± 3.6. MRI revealed a median MOCART score of 75 points (range, 20-90 points). Conclusion: To our knowledge, this is the largest series to date regarding isolated patellar OAT. At midterm follow-up, most patients reported good and excellent results regarding symptoms and activity levels. Most autografts showed good osseous integration and excellent filling of the chondral surface, as evidenced on MRI. OAT is a good alternative to treat high-grade patellar chondral defects, especially among young patients.

scholarly journals Increasing pelvic incidence is associated with more global sagittal imbalance in ankylosing spondylitis with thoracolumbar kyphosis: an observational retrospective study of 94 cases

2020 ◽  
Author(s):  
Diyu Song ◽  
Guoquan Zheng ◽  
Tianhao Wang ◽  
Dengbin Qi ◽  
Yan Wang
Keyword(s):  
Ankylosing Spondylitis ◽  
Pelvic Incidence ◽  
Pearson Correlation ◽  
Control Group ◽  
Sacral Slope ◽  
Sagittal Imbalance ◽  
Thoracolumbar Kyphosis ◽  
Spinopelvic Parameters ◽  
Sagittal Vertical Axis ◽  
The Relationship

Abstract Background: Ankylosing spondylitis (AS) patients with kyphosis have an abnormal spinopelvic alignment and pelvic morphology. Most studies focus on the relationship of pelvic tilt (PT) or sacral slope (SS) and deformity, and relatively few studies have addressed the relationship between pelvic incidence (PI) and kyphosis in AS patients. The purpose of this study is to analyze the correlation between pelvic incidence (PI) and the spinopelvic parameters describing local deformity or global sagittal balance in AS patients with thoracolumbar kyphosis.Methods: A total of 94 patients with AS (91 males and 3 females) and 30 controls (27 males and 3 females) were reviewed. The mean age was 36.8 years in AS patients and 34.4 years in controls. Gender ratios and mean age were similar in both group. Sagittal spinopelvic parameters, including PI, PT, SS, thoracic kyphosis (TK), thoracolumbar kyphosis (TLK), lumbar lordosis(LL), sagittal vertical axis(SVA), the first thoracic vertebra pelvic angle(TPA), spinosacral angle(SSA) and spinopelvic angle(SPA) were measured. The same spine surgeons measured all the parameters of the AS and control group. All the sagittal spinopelvic parameters were compared between the groups. The relationship between PI and other spinopelvic parameters was analyzed with Pearson correlation (r) and unary linear regression model.Results: All the sagittal parameters were found to be significantly different between AS patients and controls. Compared with the control group, the AS patients had significantly higher PI(47.4˚ vs. 43.2˚, P<0.001). Correlation analysis revealed that PI in AS patients was significantly positively correlated with TPA(r=0.533, R2=0.284, P<0.001), and negatively correlated with SPA(r=-0.504, R2=0.254, P<0.001). However, no correlations were found between PI and SVA, SSA, TK, TLK or LL in AS patients.Conclusion: This study revealed that increasing PI was significantly correlated with more global sagittal imbalance, not with the local deformity in AS patients with thoracolumbar kyphosis.

Midterm Outcomes of Polyvinyl Alcohol Hydrogel Hemiarthroplasty of the First Metatarsophalangeal Joint in Advanced Hallux Rigidus

2016 ◽  
Vol 38 (3) ◽  
pp. 243-247 ◽  
Author(s):  
Timothy R. Daniels ◽  
Alastair S. E. Younger ◽  
Murray J. Penner ◽  
Kevin J. Wing ◽  
Sara Lyn Miniaci-Coxhead ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Functional Outcomes ◽  
Short Form ◽  
Case Series ◽  
Hallux Rigidus ◽  
Radiographic Evaluation ◽  
First Metatarsophalangeal Joint ◽  
Sf 36 ◽  
Pva Hydrogel

Background: Hallux rigidus is the most common arthritic condition of the foot. A randomized clinical trial of first metatarsophalangeal (MTP) joint hemiarthroplasty with a polyvinyl alcohol (PVA) hydrogel implant (Cartiva) demonstrated pain relief and functional outcomes equivalent to first MTP arthrodesis at 2 years postoperation, with no cases of implant fragmentation, wear, or bone loss. We prospectively determined 5-year outcomes of first MTP hemiarthroplasty with the PVA hydrogel implant. Methods: Patients who underwent first PVA hydrogel MTP hemiarthroplasty in the previously reported trial were evaluated at 5 years postoperatively. Patients underwent physical examination and radiographic evaluation and completed a pain VAS, the Short-Form-36 (SF-36), and the Foot and Ankle Ability Measure (FAAM) sports subscale and activities of daily living (ADL) subscale. At the time of this study, 29 patients had reached 5 years’ follow-up. Two were lost to follow-up, leaving 27 patients with mean age 56.1 (range, 40.1-71.9) years. Mean follow-up was 5.4 (range, 4.9-6.4) years. Results: Postoperative active MTP natural joint dorsiflexion and peak MTP dorsiflexion were mean 18.2 (range, 10.0-30.0) and 29.7 (range, 10.0-45.0) degrees, respectively. Pain VAS, SF-36 PCS, FAAM ADL, and FAAM Sports scores demonstrated clinically and statistically significant improvements. Radiographically, no patient demonstrated changes in implant position, implant loosening or subsidence, or implant wear. One implant was removed because of persistent pain and converted to fusion 2 years postoperation. Conclusion: Five years following first MTP hemiarthroplasty with a PVA hydrogel implant, functional outcomes improved significantly, pain was reduced significantly, and the implant demonstrated excellent survivorship. Level of Evidence: Level IV, prospective case series.

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