scholarly journals Performance evaluation of surgical techniques for treatment of scapholunate instability in a type II wrist

2019 ◽  
Vol 36 (1) ◽  
Author(s):  
Roberto Leonardo‐Diaz ◽  
Teresa Alonso‐Rasgado ◽  
David Jimenez‐Cruz ◽  
Colin G. Bailey ◽  
Sumedh Talwalkar
Keyword(s):  
Performance Evaluation ◽  
Surgical Techniques ◽  
Type Ii ◽  
Scapholunate Instability

scholarly journals Muscle Changes in Lambs with Surgically Created Scoliosis Produced in Utero

1978 ◽  
Vol 5 (3) ◽  
pp. 283-287 ◽  
Author(s):  
G.M. Kent ◽  
W. Zingg ◽  
D. Armstrong
Keyword(s):  
Musculoskeletal Diseases ◽  
Fiber Type ◽  
Surgical Techniques ◽  
Spinal Curvature ◽  
Surgical Trauma ◽  
Developmental Defect ◽  
Type I ◽  
Type Ii ◽  
Muscle Changes ◽  
Type Ii Fibers

SUMMARY:Spinal curves may be produced in fetal lambs with three surgical techniques. These procedures vary from mere exposure of the costo-vertebral junction of three ribs through a paravertebral incision, to resection of the head and part of the adjacent shaft of three ribs. The fetal age varies from forty-nine to seventy-three days. The degree of curvature present at birth seems to increase in severity with decreasing fetal age at the time of surgery, but the type of surgical procedure does not appear to influence the severity of the curve, suggesting that the mechanical presence of the ribs does not prevent the development of scoliosis in these animals.Histological studies of the m. longissimus dorsi at the apices of the curves reveal two main types of abnormality in the muscle fibers. Both Type I and Type II fibers were significantly reduced in size in the biopsies taken from the side on which the surgery was performed, and there was marked alteration in the proportion of one fiber type to the other in most biopsies taken from both operated sides when compared with biopsies from unoperated twin animals.The fetal age and amount of surgical trauma appeared to play no role in the degree of muscle alteration, suggesting that even minimal surgical trauma to the paraspinal region at any fetal age between 49–73 days is sufficient to produce significant muscle fiber abnormality and spinal curvature.A parallel is drawn between these muscle findings and those in a number of human musculoskeletal diseases, and suggests the possibility of a developmental defect in the pathogenesis of these diseases.

Glenohumeral Translations are Only Partially Restored after Repair of a Simulated Type II Superior Labral Lesion

2003 ◽  
Vol 31 (1) ◽  
pp. 56-63 ◽  
Author(s):  
Andreas Burkart ◽  
Richard E. Debski ◽  
Volker Musahl ◽  
Patrick J. McMahon
Keyword(s):  
Clinical Relevance ◽  
Glenohumeral Joint ◽  
Surgical Techniques ◽  
Testing System ◽  
Type Ii ◽  
Joint Stability ◽  
Anterior Translation ◽  
Labral Lesion ◽  
Force Moment ◽  
Biceps Anchor

Background The effect on joint stability of repair of type II superior labrum and biceps anchor lesions is unknown. Hypothesis Increased translations of the glenohumeral joint after a simulated type II lesion will be reduced after the lesion is repaired. Study Design Controlled laboratory study. Methods A robotic/universal force-moment testing system was used to simulate load-and-shift and apprehension tests on eight cadaveric shoulders to determine joint kinematics of the shoulder after venting, creation of a type II lesion, and repair of the lesion. Results At 30° of abduction, anterior translation of the vented joint in response to an anterior load was 18.7 ± 8.5 mm and was significantly increased to 26.2 ± 6.5 mm after simulation of a type II lesion. Repair did not restore anterior translation (23.9 ± 8.6 mm) to that of the vented joint. The inferior translation that also occurred during application of an anterior load was 3.8 ± 4.0 mm in the vented joint and increased significantly to 8.5 ± 5.4 mm with a simulated type II lesion. After repair, the inferior translation decreased significantly to 6.7 ± 5.3 mm. Conclusions Repair of a type II lesion only partially restored glenohumeral translations to that of the vented joint. Clinical Relevance Surgical techniques including improved repair of passive stabilizers injured in the type II lesion should be considered.

scholarly journals Association of Lunate Morphology With Carpal Instability in Scapholunate Ligament Injury

Hand ◽  
2017 ◽  
Vol 13 (4) ◽  
pp. 418-422 ◽  
Author(s):  
Eric Quan Pang ◽  
Nathan Douglass ◽  
Robin N. Kamal
Keyword(s):  
Retrospective Chart Review ◽  
Plain Film ◽  
Ligament Injury ◽  
Type I ◽  
Type Ii ◽  
Scapholunate Ligament ◽  
Ligament Injuries ◽  
Scapholunate Instability ◽  
Significant Difference ◽  
Chi Square Analysis

Background: We examined the relationship between lunate morphology (type 1 without a medial facet; type II with a medial facet) and dorsal intercalated segmental instability (DISI) in patients with scapholunate ligament injuries. We tested the primary null hypothesis that there is no relationship between lunate morphology and development of DISI. Secondary analysis compared the agreement of classifying lunate morphology based on the presence of a medial lunate facet, capitate-to-triquetrum (CT) distance, and magnetic resonance imaging (MRI). Methods: We performed a retrospective chart review of patients with known scapholunate ligament injuries from 2001 to 2016. Posterior-anterior radiographs and MRI, when available, were evaluated. CT distances were measured as a secondary classification method. DISI and scapholunate instability were determined as radiolunate angle >15° and scapholunate angle >60°, respectively. Differences between groups were determined using chi-square analysis with significance set at P < .05. Agreement between plain radiographs, MRI, and CT distance was calculated using the kappa statistic. Results: Our search found 58 of 417 patients who met inclusion criteria; 41 of 58 had type II and 17 of 58 had type I lunates. There was no significant difference between groups in regard to DISI or scapholunate instability. Subanalysis using MRI alone or correcting any discrepancy between plain film and MRI classification, using MRI as the standard, found no difference between groups in regard to DISI or scapholunate instability. Conclusions: In patients with scapholunate ligament injuries, there are no differences in the development of DISI or scapholunate instability between patients with type I and type II lunates.

scholarly journals Tratamiento artroscópico de las fracturas de tercio distal de clavícula tipo 2 de Neer con sistema ZipTight.

2019 ◽  
pp. 149-155
Keyword(s):  
External Rotation ◽  
Surgical Techniques ◽  
Functional Results ◽  
High Rate ◽  
Type Ii ◽  
Rotator Cuff Injuries ◽  
Technical Modifications ◽  
Clavicle Fractures ◽  
Clinical And Radiological Results ◽  
Coracoclavicular Fixation

PURPOSE. Neer type II fractures of the external third of the clavicle are fractures with a high rate of nonunion or malunion (up to 30%). Multiple surgical techniques have been describe their treatment. Also, several arthroscopic techniques. METHODS. We have retrospectively reviewed 29 cases with Neer type II distal third clavicle fractures treated with coracoclavicular fixation with a suspension system. RESULTS. All fractures except 1 have undergone complete consolidation in 3 months,without the disadvantages of other systems such as KW,screws or plates. The rate of consolidation has been 96.5% (all but 1 patient).The mobility obtained was very satisfactory: flexion of 176º, abduction of 145º, an external rotation of 80º, an internal rotation with the hand until T11 and horizontal adduction of 132º. The functional results obtained have been excellent in most patients: obtaining 96 points on the Constant scale and excellent UCLA in 26 cases. This is one of the studies with more patients treated with this type of technique. All patients have been followed until the clinical and radiographic consolidation of the fractures.We also contribute some technical modifications to the initial technique that we have been obtaining with the experience to improve the clinical and radiological result of the patients. CONCLUSION.The arthroscopic assisted treatment of Neer type II distal third clavicle fractures with a Ziptight system is a reproducible technique that allows us to reduce and stabilize the fracture and also to diagnose and treat possible glenohumeral o rotator cuff injuries, obtaining excellent clinical and radiological results.

scholarly journals Current state of surgical treatment for patients with tubular breast type II (a literature review)

2021 ◽  
Vol 23 (1) ◽  
pp. 146-151
Author(s):  
A. A. Kostenko ◽  
S. P. Galych ◽  
O. Yu. Dabizha ◽  
K. A. Samko ◽  
D. V. Borovyk
Keyword(s):  
Surgical Treatment ◽  
Soft Tissues ◽  
Surgical Techniques ◽  
Fat Grafting ◽  
Universal Method ◽  
Type Ii ◽  
Lower Pole ◽  
Current State ◽  
Tubular Breast ◽  
High Level

The aim of the study – to analyze the modern literature, summarize current approaches to surgical treatment of tubular breast type II and identify the causes of poor results. Tubular breast deformity relates to congenital connective tissue malformations, occurs in puberty and causes a great deal of psychological discomfort to women. The majority of authors note that type II of tubular breast is the most common among patients referred to clinic for a surgical correction. In fact, the correction of this type of malformation is a reconstructive procedure associated with a number of challenges. The goal of such operation is not only to increase a volume of the breast lower pole, but also to cover the implant maximally using soft tissues to achieve a normal lower pole contour. To date, a number of surgical techniques have been proposed to address these problems, such as C. Puckett and M. Concannon (1990), L. Ribeiro (1998), E. Muti (1996), A. Mandrekas (2003) and their modern modifications. Fat grafting techniques in treatment of tubular breast are also getting popular, but all have some drawbacks. Conclusions. A high level of complications and the absence of a universal method for correction of tubular breast type II are preconditions for improving the surgical technique to correct this pathology.

743 SIEWERT TYPE II GASTRIC CARDIA CANCER: ANALYSIS OF THE RESULTS OF DIFFERENT SURGICAL OPTIONS

2021 ◽  
Vol 34 (Supplement_1) ◽  
Author(s):  
Ana Navío-Seller ◽  
David Abelló-Audí ◽  
Mireia Navasquillo-Tamarit ◽  
Milton Emmanuel De Jesús-Acosta ◽  
Marcos Bruna-Esteban ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Locally Advanced ◽  
Surgical Techniques ◽  
Disease Free Survival ◽  
Gastric Cardia ◽  
Distal Margin ◽  
Gastric Cardia Adenocarcinoma ◽  
Type Ii ◽  
Ivor Lewis ◽  
Ivor Lewis Esophagectomy

Abstract   The management of gastric cardia tumors should be carried out from a multidisciplinary approach, there is currently a clear controversy regarding the most appropriate surgical approach to use in type II tumors. Depending on their topographic anatomical characteristics based on the degree of gastric invasion and esophageal, the surgical technique may change: esophagectomy, gastrectomy with distal esophagectomy, or total esophageal gastrectomy. Methods Retrospective and analytical study of patients diagnosed with type II gastric cardia adenocarcinoma (based on the results of the pathological study of the resection specimen) who underwent surgical treatment in our center from June 2012 to June 2020. Different preoperative parameters, the surgical techniques used and the results obtained were analyzed. Results 25 patients were studied, 84% male. 60% were locally advanced tumors with 56% affected nodes. 12 Ivor-Lewis esophagectomies, 5 esophagogastrectomies with coloplasty, and 5 extended total gastrectomies were performed. There was no resection proximal or distal margin involvement, but circumferential margin was affected in 60% of cases of extended gastrectomy and in 1 case of Ivor-Lewis esophagectomy. Median number of lymph nodes removed was 22(5–37) and 2(0–12) affected, being higher in total esophagogastrectomy. Postoperative morbidity was 40% and 90-day mortality 4% (1 case). The mean follow-up was 37 months, noting recurrence in 9 cases (36%), with disease-free survival of 44%. Conclusion The surgical treatment approach in type II gastric tumors is controversial, and there are multiple options to consider. According to the results of this study, the Ivor-Lewis esophagectomy shows to be a safe approach with satisfactory oncological results in tumors that do not require a total esophagogastrectomy.

Sulcus-centered resection for focal cortical dysplasia type II: surgical techniques and outcomes

2020 ◽  
pp. 1-7
Author(s):  
Baotian Zhao ◽  
Chao Zhang ◽  
Xiu Wang ◽  
Yao Wang ◽  
Chang Liu ◽  
...  
Keyword(s):  
Focal Cortical Dysplasia ◽  
Surgical Techniques ◽  
Cortical Dysplasia ◽  
Neurological Deficits ◽  
Type Ii ◽  
Motor Weakness ◽  
Resective Surgery ◽  
Electrophysiological Recordings ◽  
Technical Details

Focal cortical dysplasia type II (FCD II) is a common histopathological substrate of epilepsy surgery. Here, the authors propose a sulcus-centered resection strategy for this malformation, provide technical details, and assess the efficacy and safety of this technique. The main purpose of the sulcus-centered resection is to remove the folded gray matter surrounding a dysplastic sulcus, particularly that at the bottom of the sulcus. The authors also retrospectively reviewed the records of 88 consecutive patients with FCD II treated with resective surgery between January 2015 and December 2018. The demographics, clinical characteristics, electrophysiological recordings, neuroimaging studies, histopathological findings, surgical outcomes, and complications were collected. After the exclusion of diffusely distributed and gyrus-based lesions, 71 patients (30 females, 41 males) who had undergone sulcus-centered resection were included in this study. The mean (± standard deviation) age of the cohort was 17.78 ± 10.54 years (38 pediatric patients, 33 adults). Thirty-five lesions (49%) were demonstrated on MRI; 42 patients (59%) underwent stereo-EEG monitoring before resective surgery; and 37 (52%) and 34 (48%) lesions were histopathologically proven to be FCD IIa and IIb, respectively. At a mean follow-up of 3.34 ± 1.17 years, 64 patients (90%) remained seizure free, and 7 (10%) had permanent neurological deficits including motor weakness, sensory deficits, and visual field deficits. The study findings showed that in carefully selected FCD II cases, sulcus-centered resection is an effective and safe surgical strategy.

scholarly journals A University Teachers’ Teaching Performance Evaluation Method Based on Type-II Fuzzy Sets

Mathematics ◽  
2021 ◽  
Vol 9 (17) ◽  
pp. 2126
Author(s):  
Xixia Sun ◽  
Chao Cai ◽  
Su Pan ◽  
Nan Bao ◽  
Ning Liu
Keyword(s):  
Performance Evaluation ◽  
Fuzzy Sets ◽  
Evaluation Method ◽  
Weighted Average ◽  
Indicator System ◽  
Teaching Performance ◽  
Type I ◽  
Type Ii ◽  
University Teachers ◽  
Performance Evaluation Method

This paper proposes a university teachers’ teaching performance evaluation method based on type-II fuzzy sets (T2 FSs), which solves the problems of fuzziness, complexity and uncertainty in teaching performance evaluation. Firstly, the evaluation indicator system is constructed from the aspects of teaching attitude, teaching contents, teaching professionalism, teaching methods and teaching effects. Then, T2 FSs theory and the perceptual computing method are introduced to model subjective judgments and capture uncertainties, effectively handling higher levels of uncertainty in the evaluation process. Furthermore, the linguistic weighted average operator is applied as the computing with words engine to aggregate scores and weights of indicators, which effectively integrates the uncertain information in the input data into the final evaluation conclusion and guarantees the accuracy of the evaluation results. Finally, the effectiveness of the method of this study is evaluated by simulation experiments. The computational results demonstrate that it can capture more uncertain and complex information, and is more accurate and reliable than the type-I fuzzy sets method.

First cleft branchial fistula in a child – a modified surgical technique

1994 ◽  
Vol 108 (12) ◽  
pp. 1078-1080 ◽  
Author(s):  
P. Murthy ◽  
P. Shenoy ◽  
N. A. Khan
Keyword(s):  
Surgical Technique ◽  
Facial Nerve ◽  
Surgical Approach ◽  
Surgical Techniques ◽  
Type Ii ◽  
Complete Excision ◽  
Branchial Cleft ◽  
Branchial Fistula

AbstractCongenital first branchial cleft fistulae, their embryology, anomalies, varied relationships to the facial nerve and surgical techniques for their excision have been well described in the literature. We report a case of a type II first cleft fistula in a three-year-old child which required a modification of the standard surgical approach to achieve safe and complete excision with identification and preservation of the facial nerve.

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