scholarly journals Predictive model for achieving good clinical and radiographic outcomes at one-year following surgical correction of adult cervical deformity

2021 ◽  
Vol 12 (3) ◽  
pp. 228
Author(s):  
PeterGust Passias ◽  
SamanthaR Horn ◽  
Cheongeun Oh ◽  
GregoryW Poorman ◽  
Cole Bortz ◽  
...  
Keyword(s):  
Predictive Model ◽  
Surgical Correction ◽  
Cervical Deformity ◽  
Radiographic Outcomes ◽  
One Year

scholarly journals Recurrent scoliosis one year after surgical correction

2010 ◽  
Vol 20 (S2) ◽  
pp. 193-194
Author(s):  
P. J. van Luijk ◽  
F. de Nies
Keyword(s):  
Surgical Correction ◽  
One Year

scholarly journals Freshening of Subsurface Waters in the Northwest Pacific Subtropical Gyre: Observations and Dynamics

2013 ◽  
Vol 43 (12) ◽  
pp. 2733-2751 ◽  
Author(s):  
Youfang Yan ◽  
Eric P. Chassignet ◽  
Yiquan Qi ◽  
William K. Dewar
Keyword(s):  
Predictive Model ◽  
Subtropical Gyre ◽  
Northwest Pacific ◽  
Spatial Structures ◽  
Central Pacific ◽  
Dynamical Mechanism ◽  
Salinity Anomaly ◽  
Low Latitudes ◽  
Subsurface Waters ◽  
One Year

Abstract Subsurface salinity anomalies propagating between mid- and low latitudes along isopycnal surfaces have been shown to play an important role in modulating ocean and climate variability. In this study, a sustained freshening and southwestward propagation of subsurface salinity anomalies in the northwest Pacific subtropical gyre and its dynamical mechanism are investigated using observations, numerical outputs, and a predictive model. Analyses of the observations show a pronounced subsurface freshening with salinity decreasing about 0.25 PSU near the 24.5-σθ surface in the northwest Pacific subtropical gyre during 2003–11. This freshening is found to be related to the surface forcing of salinity anomalies in the outcrop zone (25°–35°N, 130°–160°E). A predictive model based on the assumption of salinity conservation along the outcrop isopycnals is derived and used to examine this surface-forcing mechanism. The resemblance between the spatial structures of the subsurface salinity derived from the predictive model and from observations and numerical outputs suggests that subsurface salinity anomalies are ventilated over the outcrop zone. A salinity anomaly with an amplitude of about 0.25 PSU generated by the surface forcing is subducted in the outcrop zone and then propagates southwestward, accompanied by potential vorticity anomalies, to the east of Luzon Strait (~15°N) in roughly one year. When the anomalies reach 15°N, they turn and move gradually eastward toward the central Pacific, associated with an eastward countercurrent on the southern subtropical gyre.

UNILATERAL VERSUS SIMULTANEOUS BILATERAL PERCUTANEOUS HALLUX VALGUS SURGERY

2017 ◽  
Vol 20 (04) ◽  
pp. 1750022
Author(s):  
Eusebio Crespo Romero ◽  
Silvia Gómez Gómez ◽  
Raquel Peñuela Candel ◽  
Alvaro Arcas Ordoño ◽  
Angel Arias Arias ◽  
...  
Keyword(s):  
Cohort Study ◽  
Hallux Valgus ◽  
Surgical Correction ◽  
Level Of Evidence ◽  
Radiographic Outcomes ◽  
Forefoot Surgery ◽  
Comparative Cohort Study ◽  
Group B ◽  
Surgical Group

Introduction: The purpose of the present study is to evaluate the clinical and radiographic results of simultaneous surgical correction for bilateral hallux valgus compared with unilateral correction using percutaneous forefoot surgery techniques (PFS). Material and Methods: A prospective cohort study of 82 patients (106 feet). The mean follow-up was 58.7[Formula: see text][Formula: see text][Formula: see text]1.5 months (range 22.3 to 112.1). Patients were divided into two groups, unilateral surgical group (group U, 58 feet) and simultaneous bilateral surgical group (group B, 48 feet). Results: Preoperative mean visual analog scale (VAS) was 6.2 points in group U and 6.3 in group B ([Formula: see text]), at the last follow-up it decreased in both groups (1.6 group U and 1.8 group B, [Formula: see text]). AOFAS score improved from approximately 50 points preoperative in both groups, to 88 at the last follow-up. Mean hallux valgus angles in groups U and B changed from 34.7[Formula: see text] and 34.3[Formula: see text] preoperatively ([Formula: see text]), to 21.3[Formula: see text] and 22.4[Formula: see text] follow-up, respectively ([Formula: see text]). With the numbers available, no significant inter-group differences were observed in clinical and radiographic outcomes. Conclusions: PFS is a valid procedure for outpatient simultaneous surgical correction in patients with bilateral hallux valgus. Level of Evidence: II Prospective Comparative Cohort Study.

scholarly journals Postlaminectomy cervical deformity

2003 ◽  
Vol 15 (3) ◽  
pp. 1-5 ◽  
Author(s):  
Harel Deutsch ◽  
Regis W. Haid ◽  
Gerald E. Rodts ◽  
Praveen V. Mummaneni
Keyword(s):  
Clinical Results ◽  
Surgical Correction ◽  
Surgical Approaches ◽  
Combined Approach ◽  
Cervical Kyphosis ◽  
Cervical Deformity ◽  
Anterior Posterior

Postlaminectomy cervical kyphosis is an important consideration when performing surgery. Identifying factors predisposing to postoperative deformity is essential. The goal is to prevent postlaminectomy cervical kyphosis while exposing the patient to minimal additional morbidity. When postlaminectomy kyphosis does occur, surgical correction is often required and performed via an anterior, posterior, or combined approach. The authors discuss the indications for surgical approaches as well as clinical results.

The Pouch and Tunnel Technique for the Management of Adjacent Gingival Recession Defects: Surgical Correction and One-Year Follow-Up

2010 ◽  
Vol 11 (5) ◽  
pp. 41-48 ◽  
Author(s):  
Vikas Deo ◽  
Ashok Bhati ◽  
Tony Kurien
Keyword(s):  
Surgical Techniques ◽  
Gingival Recession ◽  
Surgical Correction ◽  
Long Term Results ◽  
Recipient Site ◽  
Dental Esthetics ◽  
Tunnel Technique ◽  
Flap Design ◽  
One Year

Abstract Aim The aim of this report is to present a minimally invasive periodontal plastic surgical method for the treatment of gingival augmentation coronal to area of recession on the facial aspect of the mandibular central incisors. Background Gingival recession is a relatively common condition patients may discuss with their general dental practitioner. Several improvements in the available corrective surgical techniques have evolved, especially in flap design of periodontal cosmetic surgeries, which can produce a favorable final treatment outcome. Case Description A 21-year-old male patient diagnosed with Miller class II marginal tissue recession on the facial surface of the mandibular right and left central incisors was treated with a subepithelial connective tissue autograft underneath a supraperiosteal pouch and tunnel recipient site for multiple areas of gingival recession This flap design allowed intimate contact of donor tissue to the recipient site. One-year follow-up examination of the surgical site revealed excellent and stable root surface coverage. Summary The use of a technique that involves preservation of papilla height and ensures maximum blood supply to the graft helps to attain excellent esthetic and functional long-term results. Clinical Significance Given the increasing patient concerns about dental esthetics, the surgical treatment modality presented can be beneficial in efforts to meet the esthetic and functional demands of patients, thereby contributing positively to treatment acceptance and the overall outcome. Citation Kurien T, Deo V, Bhati A. The pouch and tunnel technique for the management of adjacent gingival recession defects: Surgical correction and one-year follow-up. J Contemp Dent Pract [Internet]. 2010 October; 11(5):041- 048. Available from: http://www.thejcdp.com/ journal/view/volume11-issue5-deo

Predictive Model for Patient-Reported Outcomes Scores following Cervical Spine Deformity Surgical Correction

2016 ◽  
Vol 16 (10) ◽  
pp. S307-S308
Author(s):  
Peter G. Passias ◽  
Cheongeun Oh ◽  
Cyrus M. Jalai ◽  
Gregory W. Poorman ◽  
Renaud Lafage ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Predictive Model ◽  
Patient Reported Outcomes ◽  
Surgical Correction ◽  
Spine Deformity ◽  
Patient Reported

scholarly journals Prediction of clinical height gain from surgical posterior correction of idiopathic scoliosis

2020 ◽  
Vol 33 (4) ◽  
pp. 507-512
Author(s):  
Tristan Langlais ◽  
Stephane Verdun ◽  
Roxane Compagnon ◽  
Catalin Ursu ◽  
Claudio Vergari ◽  
...  
Keyword(s):  
Idiopathic Scoliosis ◽  
Predictive Model ◽  
Spinal Instrumentation ◽  
Population Data ◽  
Standing Position ◽  
Surgical Correction ◽  
Validation Population ◽  
Before And After ◽  
Height Gain ◽  
Actual Height

OBJECTIVEThe best predictors of height gain due to surgical correction are the number of fused vertebrae and the degrees of the corrected Cobb angle. Existing studies of predictive models measured the radiographic spinal height and did not report the clinical height gain. The aims of this study were to determine the best predictive factors of clinical height gain before surgical correction, construct a predictive model using patient population data for machine learning, and test the performance of this model on a validation population.METHODSThe authors reviewed 145 medical records of consecutive patients who underwent surgery that included placement of posterior spinal instrumentation and fusion for idiopathic scoliosis between 2012 and 2016. Standing and sitting clinical heights were measured before and after surgery in patients who had been surgically treated under similar conditions. Multivariate analysis was then performed and the results were used to develop a predictive model for height gain after surgery. The data from the included patients were randomly assigned to a learning set or a test set.RESULTSIn total, 116 patients were included in the analysis, for whom the average postoperative clinical height gain in a standing position was 4.2 ± 1.8 cm (range 0–11 cm). The best prediction model was calculated as follows: standing clinical height gain (cm) = 1 − 0.023 × sitting clinical height (cm) − 0.19 × Risser stage + 0.058 × Cobb preoperative angle (°) + 0.021 × T5–12 kyphosis (°) + 0.14 × number of levels fused. In the validation cohort, 91% of the predicted values had an error of less than one-half of the actual height gain.CONCLUSIONSThis predictive model formula for calculating the potential postoperative height gain after surgical treatment can be used preoperatively to inform idiopathic scoliosis patients of what outcomes they may expect from posterior spinal instrumentation and fusion (taking into account the model’s uncertainty).

scholarly journals Arthroscopic Cartilage Regeneration Facilitating Procedure: A Decompressing Arthroplasty for Knee Osteoarthritis

2020 ◽  
Author(s):  
Shaw-Ruey Lyu ◽  
Jung-pin Hung ◽  
Chia-Chen Hsu ◽  
Yu-Ruei Chen ◽  
Chih-Wen Lin
Keyword(s):  
Knee Osteoarthritis ◽  
Cartilage Regeneration ◽  
Outcome Study ◽  
Knee Oa ◽  
Radiographic Outcomes ◽  
Operative Care ◽  
Medial Plica ◽  
Magnetic Resonance Imaging Mri ◽  
Objective Outcomes ◽  
One Year

Abstract Background The effectiveness of arthroscopic treatment for knee osteoarthritis (OA) has been subject to debate. This study presents an innovative concept of arthroscopic management for knee OA and investigates its clinical outcome.Methods An arthroscopic cartilage regeneration facilitating procedure (ACRFP) to eliminate medial abrasion phenomenon and decompress the patello-femoral joints was performed on 693 knees of 411 patients with knee OA, mean age 60 years (34-90). The Knee Society score (KSS) and the knee injury and osteoarthritis outcome score (KOOS) were used for subjective outcome study. Roentgenographic changes for all cases and magnetic resonance imaging (MRI) variations for twenty randomly selected cases were evaluated for objective outcomes. Results There were 634 knees in 369 patients (93.7%) available with more than 3 years of follow-ups (mean 40 months, SD 9). The overall subjective satisfactory rate was 91.1%. The KSS and all subscales of the KOOS improved statistically. Reversal of the degeneration process of cartilage was observed in 80.1% of the whole series (radiographic outcome) and in 72.2% of the 18 randomly selected cases (one-year MRI outcome study). Gender and OA severity were related to subjective outcomes. Age, body mass index (BMI), pre-operative hyaluronic acid injection, OA severity, and the type and severity of the medial plica are important predictors of radiographic outcomes. An analysis of failed cases reaffirmed the need for early ACRFP and skillful post-operative care. Conclusion ACRFP is an effective treatment for knee OA. If performed in time, it can satisfy most patients and might modify their degeneration process.

Sign in / Sign up

Export Citation Format

Share Document