1989 ◽  
Vol 4 ◽  
pp. 326-330
Author(s):  
J. Smith ◽  
B. Latimer

Fossils are characteristically uncommon, making it impossible to distribute original specimens to all interested investigators. Dissemination of information, therefore, often depends upon the circulation of accurate reproductions. Such reproductions or casts can be made from a variety of materials including plasters and two-part resins. Using resins for the casting of paleontological specimens was discussed by a number of authors, including Burke and Jensen, 1961; Madsen, 1974; Parsons, 1973; Schrimper, 1973; Reser, 1981; and Burke et al., 1983 (see additional references in Hannibal, this volume, chapter 6). Plaster casting is covered by Babcock (this volume, chapter 34).


2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Christian Walter ◽  
Saskia Sachsenmaier ◽  
Markus Wünschel ◽  
Martin Teufel ◽  
Marco Götze

2011 ◽  
Vol 25 (34) ◽  
pp. 55-55
Author(s):  
Sargerson Winifred
Keyword(s):  

1976 ◽  
Vol 8 (2) ◽  
pp. vi
Author(s):  
Allan J. Ryan
Keyword(s):  

2019 ◽  
Vol 13 (Supl 1) ◽  
pp. 106S
Author(s):  
Jordanna Maria Pereira Bergamasco ◽  
Marcelo Chakkour ◽  
Raoni Madeiro ◽  
Marco Tulio Costa ◽  
Ricardo Cardenuto Ferreira ◽  
...  

Introduction: Amniotic band constriction syndrome is a rare anomaly with an incidence of approximately 1:15,000 live births. It manifests as fibrous amniotic bands involving the deep fascia and, depending on its depth, can compromise the venous and lymphatic system. The presence of fibrous amniotic bands in the lower limbs is strongly associated with foot malformations, and the prevalence of clubfoot under such conditions ranges from 12 to 56%. Clubfoot associated with amniotic band constriction syndrome is characterized by rigidity and edema and tends to respond poorly to conservative treatment. We present a series of cases of clubfoot associated with amniotic band constriction syndrome that were treated with manipulation and plaster casting using the Ponseti method. Methods: Over the past 10 years, we followed 19 patients with amniotic band constriction syndrome affecting the lower limbs. Of these patients, 6 had clubfoot, including 2 who were bilaterally affected. The 6 children in this series had constriction bands in Hennigan and Kuo zone 2. The 8 affected feet were rigid, with a mean Pirani score of 5.5 and Dimeglio III classification. Four extremities with complete constriction bands initially underwent z-plasty for band release, followed by manipulation and plaster casting. The other four extremities had incomplete bands, which were initially subjected to manipulation using the Ponseti method, followed by band release at the time of the Achilles tenotomy. Results: Over a mean follow-up time of 5 years, 7 of the study feet were plantigrade and painless, with no limitations of activities of daily living; only one foot showed limited dorsiflexion, and that patient is awaiting corrective surgery. This limb showed a double band in zone 2 that was both complete and deep. Conclusion: Despite the rigidity, clubfoot secondary to amniotic band constriction syndrome showed good outcomes when treated using the Ponseti method.


2018 ◽  
Vol 7 (2) ◽  
pp. e000284 ◽  
Author(s):  
John Teudar Williams ◽  
Marta Kedrzycki ◽  
Yathish Shenava

ProblemIn our trauma unit, we noted a high rate of incorrectly applied below-knee casts for ankle fractures, in some cases requiring reapplication. This caused significant discomfort and inconvenience for patients and additional burden on plaster-room services. Our aim was to improve the quality of plaster casts and reduce the proportion that needed to be reapplied.MethodsOur criteria for plaster cast quality were based on the British Orthopaedic Association Casting Standards (2015) and included neutral (plantargrade) ankle position, adequacy of fracture reduction and rate of cast reapplication. Baseline data collection was performed over a 2-month period by two independent reviewers.InterventionsAfter distributing findings and presenting to relevant departments, practical casting sessions with orthopaedic technicians were arranged for the multidisciplinary team responsible for casting. This was later supplemented by new casting guidelines in clinical areas and available online. Postintervention data collection was performed over two separate cycles to assess the effect and permanence of intervention.ResultsData from the preintervention period (n=29) showed median ankle position was 32° plantarflexion (PF), with nine (31%) inadequate reductions and six (20%) backslabs reapplied. Following Plan-Do-Study-Act (PDSA) 1, ankle position was significantly improved (median 25° PF), there were fewer inadequate reductions (12%; 2/17) and a lower rate of reapplication (0%; 0/17). After PDSA 2 (n=16), median ankle position was 21° PF, there was one (6%) inadequate reduction and two (12%) reapplications of casts.ConclusionsFollowing implementation of plaster training sessions for accident and emergency and junior orthopaedic staff, in addition to publishing guidance and new protocol, there has been a sustained improvement in the quality of below-knee backslabs and fewer cast reapplications. These findings justify continuation and expansion of the current programme to include other commonly applied plaster casts.


1995 ◽  
Vol 8 (3) ◽  
pp. 215-216 ◽  
Author(s):  
Judy C. Colditz ◽  
Anne Marie Schneider

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