Erratum to "A parallel evaluation of 5 indirect cost-effective methods for assessing failure of passive immunity transfer in neonatal calves" (JDS Commun. 1:10-14).

[This corrects the article DOI: 10.3168/jdsc.2019-17931.].

A parallel evaluation of 5 indirect cost-effective methods for assessing failure of passive immunity transfer in neonatal calves.

The aim of this study was to evaluate the diagnostic accuracy of 5 indirect methods that may be used in veterinary practices to assess the success of maternal immunoglobulins transfer in neonatal calves. Blood samples (n = 245) were collected from 2- to 6-d-old calves. Serum immunoglobulin concentrations were determined by radial immunodiffusion. Serum total protein and albumin concentrations and γ-glutamyl transferase activity were determined by veterinary practitioners using their own biochemistry analyzer. Globulin concentration was calculated. Veterinary practitioners were also asked to assess serum total protein using a digital Brix refractometer (%Brix) and an optical refractometer (g/L). Test sensitivity (Se) and specificity (Sp) were calculated using radial immunodiffusion as the reference standard, with failure of transfer of passive immunity defined as IgG <10.0 g/L. Receiver operating characteristics curves were created and optimal cutoff values for each of the 5 indirect measurement methods were selected based on the maximization of the Youden's J statistic. In this study, Globulin concentration yielded the highest accuracy to identify failure of transfer of passive immunity (Se = 89.4%; Sp = 89.3% at 34 g/L). For %Brix, the optimal combination of Se and Sp was at 8.4% Brix (Se = 86.5% and Sp = 83.8%). The use of an optical refractometer was associated with the lowest diagnostic accuracy (Se = 69.7% and Sp = 81.6% at 52 g/L). For γ-glutamyl transferase activity, the optimal cut-points were different for 2- to 3-d-old calves (Se = 87.5% and Sp = 87.8% at 393 IU/L) or 4- to 6-d-old calves (Se = 90.0% and Sp = 86.4% at 254 IU/L). Because it does not require any specialized laboratory equipment, digital Brix refractometer can be a valuable and inexpensive tool for on-farm use, to help producers and veterinary practitioners in their calf health management programs.

[Postoperative pain: comparative study of the analgesic effect of sodium naproxen and paracetamol]. / Douleurs postopératoires: étude comparative de l'action antalgique du naproxène sodique et du paracétamol.

Pain after extraction of two antagonistic third molars was chosen to compare the analgesic effects of single doses of naproxen-sodium (825 mg) and paracetamol (1 000 mg). 124 patients of both sexes, aged from 14 to 41 years, took part in the trial which was of the double blind double dummy type with randomization into one or the other treatment. In all, 89 patients were acceptable for inclusion and followed the protocol correctly. The two treatment groups were statistically matched with regard to age, diagnosis, time of surgery and post-operative drug taking. The results were assessed by the patients on individual report-cards and by the clinician on the control visit. The analgesic effect began at the same time with naproxen-sodium and paracetamol but lasted longer (over 12 hours) with naproxen-sodium. During the 12-hour observation period, 43% of patients on naproxen-sodium refrained from taking an escape drug, as against 23% of patients on paracetamol, the difference being significant (alpha = 5%). Complete pain relief was obtained in 41% of patients under naproxen-sodium and in only 18% of patients under paracetamol. Two side-effects were noted in the paracetamol group and none in the naproxen-sodium group. In this particular pain model, the analgesic activity of naproxen-sodium proved statistically stronger and more durable than that of paracetamol.

[Untimely extraction in mandibular sarcoma. Apropos of 2 cases]. / L'extraction intempestive dans des sarcomes mandibulaires. A propos de deux cas.

Two patients with chondrosarcoma and fibrosarcoma of the mandible respectively were seen after abusive extraction of first molars from the tumoral regions. It is essential to recognize presenting signs of mandibular tumors since dental extractions are contraindicated in these cases. These untimely procedures increase the delay between the onset of the first clinical signs, the diagnosis, and the start of therapy, and thus make for a poorer prognosis.

[An orthodontic pitfall: the upper wisdom teeth]. / Un piège orthodontique: les dents de sagesse supérieures.

The authors describe an orthodontic pitfall which has been more frequently observed during the last few years. They analyse the reasons for this increase and give their point of view about this practical problem. They propose solutions based on a wide experience in the hospital. The value of this article is increased by the essential iconography.

[Case of a rare maxillary tumor: osteocementofibroma]. / Un cas de tumeur rare du maxillaire: l'ostéocémentofibrome.

A 17-year-old young girl presented with a rare maxillary tumor, an osteocementoblastoma, which from the ectopic type of position of the wisdom tooth had apparently been present for many years pathologic findings are reported. Post-operative course was normal but regular follow-up is necessary because of the tendency for recurrence of the few cases reported in the literature of this benign tumor.

[Anatomicoclinical types of mandibular fractures in children (author's transl)]. / Formes anatomo-cliniques des fractures mandibulaires chez l'enfant.

The author describes the particular type of fragility zones found in children's mandibles, which vary during growth, and discusses the anatomicoclinical types of fractures observed from the earliest age (symphysial disjunctions) until the end of mixed dentition. Emphasis is placed on one particular type, described in a previous communication: the paramedian form, which can be explained by the atomical position of certain dental germs, as well as the importance of reconstitution of the periosteum in displaced sub-condylar fractures.

[Transplantation of the lower wisdom teeth. 6 years' experience]. / Contribution à la transplantation des dents de sagesse inférieures. Expérience de 6 ans

The authors report their experience with reference to wisdom tooth transplantation involving fifteen patients over a period of 6 years. They exclude from this paper those transplantations which they have done using buds without roots and those with teeth with completely formed roots, which would not appear to be the best time for transplantation from a physiological standpoint. They feel that the main indication occurs when (multi-ring orthodontic treatment being impossible) the first molar is impossible to preserve and the wisdom tooth cannot apparently become functional. They describe their techniques. Despite the successess obtained (11 cases out of 15) with a follow-up of 6 years to one and a half years, the authors express a degree of reserve as far as the distant future is concerned with regard to possible rhizoclasia.