scholarly journals Painful Proximally Oriented Large Heterotopic Spur Formation in an Active Adult With a Nontraumatic Amputation

2020 ◽  
Vol 120 (4) ◽  
pp. 283
Author(s):  
Jack Annunziato ◽  
Daniel Shor ◽  
Shailesh Parikh
Keyword(s):  
Spur Formation

Hepatic fibrosis and cirrhosis in the Fontan circulation: a detailed morphological study

2007 ◽  
Vol 61 (4) ◽  
pp. 504-508 ◽  
Author(s):  
T J Kendall ◽  
B Stedman ◽  
N Hacking ◽  
M Haw ◽  
J J Vettukattill ◽  
...  
Keyword(s):  
Preoperative Assessment ◽  
Fontan Circulation ◽  
Severe Tricuspid Regurgitation ◽  
Histological Features ◽  
Sinusoidal Dilatation ◽  
Hepatocellular Damage ◽  
Biopsy Specimens ◽  
Inflammatory Mechanism ◽  
Spur Formation ◽  
Liver Biopsies

Aims:To describe the histological features of the liver in patients with a Fontan circulation.Methods:Specimens from liver biopsies carried out as part of preoperative assessment prior to extracardiac cavopulmonary conversion of an older style Fontan were examined and scored semi-quantitatively for pertinent histological features. To support the use of the scoring, biopsy specimens were also ranked by eye for severity to allow correlation with assigned scores.Results:Liver biopsy specimens from 18 patients with a Fontan circulation were assessed. All specimens showed sinusoidal fibrosis. In 17 cases there was at least fibrous spur formation, with 14 showing bridging fibrosis and 2 showing frank cirrhosis. In 17 cases at least some of the dense or sinusoidal fibrosis was orcein positive, although a larger proportion of the dense fibrous bands were orcein positive compared with the sinusoidal component. All specimens showed marked sinusoidal dilatation, and 14 showed bile ductular proliferation; 1 showed minimal iron deposition, and 1 showed mild lobular lymphocytic inflammation. There was no cholestasis or evidence of hepatocellular damage. Similar appearances were observed in 2 patients with severe tricuspid regurgitation.Discussion:The histological features of the liver in patients with a Fontan circulation are similar to those described in cardiac sclerosis. Sinusoidal dilatation and sinusoidal fibrosis are marked in the Fontan series. The presence of a significant amount of orcein negative sinusoidal fibrosis suggests there may be a remediable component, although the dense fibrous bands are predominantly orcein positive, suggesting chronicity and permanence. No inflammation or hepatocellular damage is evident, suggesting that fibrosis may be mediated by a non-inflammatory mechanism.

scholarly journals Late Neogene Sirius Group strata in Reedy Valley, Antarctica: a multiple-resolution record of climate, ice-sheet and sea-level events

1998 ◽  
Vol 44 (148) ◽  
pp. 437-447 ◽  
Author(s):  
Gary S. Wilson ◽  
David M. Harwood ◽  
Rosemary A. Askin ◽  
Richard H. Levy
Keyword(s):  
Sea Level ◽  
Ice Sheet ◽  
Glacier Area ◽  
Antarctic Ice Sheet ◽  
Western Margin ◽  
Type Section ◽  
Late Neogene ◽  
Formation Type ◽  
Spur Formation ◽  
The Antarctic

AbstractLate Neogene Sirius Group strata from Tillite Spur and Quartz Hills in the Reedy Glacier area, Antarctica, demonstrate the variability in Sirius Group facies and contrasts Sirius Group strata deposited at high and low paleo-elevation, respectively. The Tillite Spur and Quartz Hills Formations (Pliocene) are formally defined here.The Tillite Spur Formation type section crops out on the edge of the Wisconsin Plateau overlooking Tillite Spur. It comprises 32m of alternating coarse gray conglomerate and muddy olive-brown diamictites. The Quartz Hills Formation type section crops out above the western margin of Reedy Glacier in a pre-existing cirque towards the southern end of the Quartz Hills. It comprises c.100m of alternating massive diamictites and rhythmically interbedded sandstone and laminated mudstones which were deposited close to sea level and subsequently rapidly uplifted (>500 m Myr−1) to their present elevation at c. 1500 m. Three orders of paleoclimatic variability are recorded in the Sirius Group strata from Reedy Valley: (1) recycled marine microfloras in glacial diamictites indicate intervals of marine incursion into the Antarctic cratonic interior co-occurring with reductions in the East Antarctic ice sheet; (2) an advancing and retreating paleo-Reedy Glacier deposited a glacial/interglacial sequence alternating on a 10-100 kyr scale; 3) Centimeter and millimeter stratification in strata of the Quartz Hills Formation record annual kyr scale variability.

Anterior Tibiotalar Spurs: A Comparison of Open versus Arthroscopic Debridement

Foot & Ankle ◽  
1992 ◽  
Vol 13 (3) ◽  
pp. 125-129 ◽  
Author(s):  
Pierce E. Scranton ◽  
John E. McDermott
Keyword(s):  
Recovery Time ◽  
Operative Time ◽  
Average Length ◽  
Arthroscopic Debridement ◽  
Group A ◽  
Grade Ii ◽  
Spur Formation ◽  
The Difference ◽  
Open Versus ◽  
Length Of Hospitalization

We compared the difference in operative time, hospitalization and recovery time in two groups of patients who underwent open or arthroscopic resection of anterior, tibiotalar, impinging spurs. The operative time was approximately the same, but the average length of hospitalization and time to recovery were shorter in the arthroscopic group. A classification system is proposed that grades the degree of spur formation and assists in predicting the length of recovery time and whether the patient is a candidate for open or arthroscopic spur resection. In this series, grade I spur patients recovered and resumed full activity at 5.0 weeks, grade II at 5.6 weeks, grade III at 6.4 weeks, and grade IV at 10.0 weeks postoperatively. Grade IV patients are not suitable candidates for an arthroscopic debridement.

Osteophyte (bone spur) formation of the cervical spine

1993 ◽  
Vol 76 (3) ◽  
pp. 386-387
Author(s):  
Arthur H. Friedlander ◽  
Mark L. Monson ◽  
Ann C. Esguerra
Keyword(s):  
Cervical Spine ◽  
Spur Formation

scholarly journals Curve progression after decompression surgery in patients with mild degenerative scoliosis

2013 ◽  
Vol 18 (4) ◽  
pp. 321-326 ◽  
Author(s):  
Naobumi Hosogane ◽  
Kota Watanabe ◽  
Hitoshi Kono ◽  
Masashi Saito ◽  
Yoshiaki Toyama ◽  
...  
Keyword(s):  
Risk Factors ◽  
Surgical Outcomes ◽  
Concave Side ◽  
Curve Progression ◽  
Decompression Surgery ◽  
Degenerative Lumbar Scoliosis ◽  
Lumbar Curve ◽  
Canal Stenosis ◽  
Spur Formation

Object The authors undertook this study to evaluate curve progression, risk factors for curve progression, and outcomes after decompression surgery in patients with degenerative lumbar scoliosis with minimal to moderate curvature. Methods Of 852 patients with lumbar canal stenosis treated by posterior decompression surgery, 50 patients had a lumbar curve greater than 10° at final follow-up. These patients were divided into 2 groups according to curve progression during the follow-up period: the P group (11 patients), with a curve progression of more than 5°, and the NP group (39 patients), with a curve progression of 5° or less. The authors compared preoperative parameters in these 2 groups to elucidate risk factors associated with curve progression and other surgical outcomes. Results The average lumbar curve progression in the total group of 50 patients was 3.4° ± 3.9° (range −2.0° to 22.0°). In the P group the average curve progression was 8.5°, and in the NP group it was 2.0°. Multivariate logistic regression analysis showed no significant association between curve progression and any of the potential risk factors evaluated (including curve magnitude, decompression method, and degenerative intervertebral disc changes). Spur formation, evaluated with the Nathan classification at the concave side of the curve, tended to be greater in the P group, although the difference was not statistically significant. There was no significant difference in revision surgery rate, and none of the patients required arthrodesis due to curve progression. Clinical outcomes, evaluated with the Japanese Orthopaedic Association Back Pain Evaluation Questionnaire and the Scoliosis Research Society 22-question questionnaire, were also similar in the 2 groups. Conclusions Surgical outcomes did not deteriorate in the P group. While curve progression after decompression surgery could not be predicted from the preoperative factors considered, spur formation at the concave side of the curve may be a candidate factor. The results of this study indicate that spinal fixation to halt deformity progression is not always necessary if the patient's pathological condition derives mainly from canal stenosis.

scholarly journals CROSS-REACTIONS AMONG GROUP A STREPTOCOCCI

1968 ◽  
Vol 128 (5) ◽  
pp. 959-968 ◽  
Author(s):  
Grove G. Wiley ◽  
Pauline N. Bruno
Keyword(s):  
Streptococcal Infection ◽  
Cross Protection ◽  
The Other ◽  
Group A Streptococci ◽  
Agar Gel ◽  
Cross Reactions ◽  
Group A ◽  
Spur Formation ◽  
Homologous Reaction

Strains of four streptococcal types, 33, 41, 43, 52, and a nontypable strain, Ross, cross-reacted in precipitin and bactericidal tests. The homologous reactions, which determined the type, afforded the major protection and developed promptly and regularly in the serum of rabbits during immunization. The associated cross-reactions, on the other hand, appeared in the serum of certain rabbits only, were often not as strong as the associated homologous reactions, and required for their presence a longer period of immunization than the homologous reactions. Agar gel analysis of the homologous precipitin reactions revealed, as would be expected, reactions of serological identity, while those cross-reactions which were strong enough to test in this way formed bands of precipitate which joined with spur formation on the side of the homologous reaction. These experiments and others referred to in the text suggest that cross-protection, as demonstrated in bactericidal tests, is sufficiently widespread to be a factor in streptococcal immunity, if a corresponding protection occurs in vivo. Thus, streptococcal infection with one of the cross-reacting strains might confer, in addition to strong homologous protection, a certain amount of cross-protection.

Risk factors for heterotopic ossification and spur formation after total knee arthroplasty

2014 ◽  
Vol 134 (7) ◽  
pp. 991-996 ◽  
Author(s):  
K. E. Roth ◽  
G. Salzmann ◽  
G. S. Maier ◽  
I. Schmidtmann ◽  
J. D. Rompe ◽  
...  
Keyword(s):  
Risk Factors ◽  
Total Knee Arthroplasty ◽  
Heterotopic Ossification ◽  
Knee Arthroplasty ◽  
Total Knee ◽  
Spur Formation

scholarly journals Plantar fasciitis and calcaneal spur formation are associated with abductor digiti minimi atrophy on MRI of the foot

2008 ◽  
Vol 37 (6) ◽  
pp. 505-510 ◽  
Author(s):  
Usha Chundru ◽  
Amy Liebeskind ◽  
Frank Seidelmann ◽  
Joshua Fogel ◽  
Peter Franklin ◽  
...  
Keyword(s):  
Plantar Fasciitis ◽  
Calcaneal Spur ◽  
Abductor Digiti Minimi ◽  
Spur Formation

Comparing radial styloid size between osteoarthritic and healthy wrists: a pathoanatomical three-dimensional study

2016 ◽  
Vol 42 (1) ◽  
pp. 63-70 ◽  
Author(s):  
P. W. L. ten Berg ◽  
J. G. G. Dobbe ◽  
M. E. Brinkhorst ◽  
S. D. Strackee ◽  
G. J. Streekstra
Keyword(s):  
Imaging Techniques ◽  
Anatomic Variation ◽  
Three Dimensional ◽  
Qualitative Evaluation ◽  
General Level ◽  
Level Of Evidence ◽  
Non Union ◽  
Quantitative Measurements ◽  
Radial Styloid ◽  
Spur Formation

Radial styloid pointing due to spur formation is considered an early sign of osteoarthritis, but is sometimes difficult to distinguish from normal anatomic variation. In this pathoanatomical study we used three-dimensional imaging techniques to evaluate quantitatively whether the styloid size is larger in wrists with scaphoid non-union than in healthy wrists. We compared these findings with duration of the non-union and with the scaphoid non-union advanced collapse classification, which was based on radiographic assessment of the general level of wrist osteoarthritis. In 31 patients, the injured styloid was consistently larger than the contralateral healthy styloid. In 74% of the patients this pathoanatomical difference (maximum 5 mm) exceeded anatomical left-to-right variation in styloid size (maximum 2 mm), indicating significant pointing. Increased styloid pointing was associated with older non-unions, and with more severe osteoarthritis. Three-dimensional styloid pointing analysis is an objective method to assess osteoarthritic progression. Combining traditional qualitative evaluation and quantitative measurements may improve the classification of wrist osteoarthritis. Level of evidence: IV

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