James P. Reynolds

Influence of arrival weight, season and calf supplier on survival in Holstein beef calves on a calf ranch in California, USA

On a yearly basis, large calf ranches rear thousands of neonatal cattle for replacement heifers, veal or dairy beef. Dairy beef ranches obtain bull-calves from multiple sources and with questionable colostrum intake histories. Such ranches accumulate large amounts of data that could be used to help them with calf purchasing and on-farm management practices to avoid losses. Our purpose was to describe some calf purchase factors associated with mortality in neonatal calves raised on a single large calf ranch. Computerized records describing 120,197 bull-calves purchased between January 1997 and November 1998 were used in a survival analysis. Risk factors for mortality within the first 4 weeks after arrival on the ranch included body weight on arrival, month of arrival, and the calf supplier. The strength of the effects was conditional on the week after arrival to the ranch.

Relationships of milk culture status at calving with somatic cell counts and milk production of dairy heifers during early lactation on a Californian dairy

Abstract Four-quarter, composite milk samples were collected from 339 heifers calving for the first time in a large Californian dairy which consistently had low herd somatic cell counts and low prevalence of major mastitis pathogens. The milk samples were collected on average at 6.4 days post partum (range 1–17). Thirty-nine percent of the heifers were subclinically infected with coagulase-negative Staphylococcus spp. Other results were: no growth, 29%; coliform only, 16%; Streptococcus spp. only, 11%; Streptococcus spp. and coagulase-negative Staphylococcus spp. only, 4%; others, 1%. The somatic cell counts and milk production were not significantly different ( P > 0.05) between culture groups over the first five monthly Dairy Herd Improvement test periods. Somatic cell counts decreased significantly after the first test period within the Streptococcus spp. group ( P Staphylococcus spp. group ( P P Staphylococcus spp.) had no significant effect on average somatic cell counts or milk production during early to middle lactation.

Systemic Bovine herpesvirus 1 infections in neonatal dairy calves

During a 6-year period, 62 out of 2,980 calves examined (2.08%) between 1–30 days of age had lesions consistent with Bovine herpesvirus 1 infection. The mean and median age of affected calves was 14 days of age. Most cases of infection were in calves 12 and 15 days of age, with 34 calves (54.8%) affected; 14 calves (22.6%) were between 16–21 days of age; 11 calves (17.8%) were between 7–11 days of age; and 3 calves (4.8%) were between 22–30 days of age. In 29 of the calves, the adrenal gland was the only organ affected. In 25 calves, the adrenal gland and at least 1 other tissue had lesions consistent with herpes viral infection. Five animals had no adrenal lesions but had 1 or more additional tissue with lesions consistent with herpesvirus. Three animals had no adrenal gland present for examination but had lesions in other tissues. Organs and number of animals affected by Bovine herpesvirus 1 infection were adrenal gland (54), liver (18), lungs (15), kidney (8), small intestines (7), large intestines (7), rumen/omasum (7), trachea/larynx (3), abomasum (2), heart (1), esophagus (1), thymus (1), and lymph node (1).

Computed tomography confirmation of component rotation in nanosensor-balanced total knee arthroplasty

Balanced gaps and proper rotation are felt to be essential for optimum range of motion, stability, and patellar tracking in total knee arthroplasty. The purpose of this study is to assess, using computed tomography, the rotation of femoral and tibial components in fresh-frozen human cadaver knees that have been balanced using nanosensor trials while also observing how this rotation affects measured compartment loads and requirement for ligament balancing adjustment. We found that minor degrees of rotational malalignment of the femur and tibia were common using standard instrumentation and measured resection technique. Quantitative balance and rotational congruence are aided by nanosensor guidance, and femoral malrotation of up to 8° does not appear to affect compartment loads significantly as long as rotational congruity is present.

Retroperitoneal hematoma presenting as acute meralgia paresthetica: Case report, review of literature and cadaveric demonstration

Introduction: Spontaneous retroperitoneal hematoma is a relatively rare condition that usually occurs in patients receiving anticoagulation therapy or those with a history of hemophilia. The presentation may vary from mild abdominal discomfort to acute hemodynamic collapse. Given the potential for exsanguination, it is important to detect this potentially life-threatening condition early for appropriate management. Case Report: In this report, we discuss an uncommon presentation of a retroperitoneal hematoma in which the patient initially sought treatment for thigh and ankle pain related to a recent minor trauma. During the course of her evaluation over several days, a diagnosis of acute meralgia paresthetica was entertained and treated with relief of her symptoms. However, an evolving retroperitoneal hematoma was subsequently identified as the cause of her condition. Conclusion: Physicians should be aware of this seemingly benign presentation of a life-threatening retroperitoneal Jibanananda Satpathy1, Varatharaj Mounasamy2, Gregory Golladay3, James Phillip Reynolds4 Affiliations: 1MD, Assistant Professor, Orthopedic Surgery, Virginia Commonwealth University, Richmond, VA, United States; 2MD, Associate Professor, Director of Orthopedic Trauma, Virginia Commonwealth University, Richmond, VA, United States; 3MD, Associate Professor, Orthopedic Surgery, Virginia Commonwealth University, Richmond, VA, United States; 4BS, Medical Student, Virginia Commonwealth University, Richmond, VA, United States. Corresponding Author: Jibanananda Satpathy, 417 North 11th Street, Richmond, Virginia, United States, 23298; Email: jibanananda.satpathy@vcuhealth.org Received: 22 August 2016 Accepted: 09 September 2016 Published: 16 November 2016 hematoma to avoid delays in diagnosis and treatment as described in this report.