Wyniki wyszukiwania - Biblioteka Nauki

1

External coaptation for the treatment of long bone fractures in cattle: A retrospective study of 35 cases (1996-2001)

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Bani Ismail Z. A. , Hawkins J. F. , Al-Majali A. M.

Polish Journal of Veterinary Sciences

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2007

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tom 10

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nr 4

EN

The objective of this retrospective study was to report the history, signalment, frequency, types, complications, and long-term outcome of long bone fractures in cattle treated using external coaptation techniques. The sex, age, breed, history, physical examination findings, and radiographic findings were recorded. Of 35 cases with long bone fractures treated using external coaptation, 31 were discharged alive. The mean hospitalization time for these cattle was 2 days. Six to 12 months after treatment, 26 (84%) cases were considered satisfactorily healed. It was concluded that cattle with long bone fractures could be treated successfully using external coaptation with minimal effect on productivity.

2

Comminuted long bone fractures in cats caused by pneumatic gun shot and reoaired using the external fixator 'tie-in' technique

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Adamiak Z. , Aleksiewicz R. , Kostrzewski M. , Mederski J.

Polish Journal of Veterinary Sciences

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2007

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tom 10

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nr 3

EN

Five cats with femoral fractures caused by pneumatic gun shot wounds were treated using intramedullary pin/external skeletal fixation "tie-in" (IM/ESF tie-in) technique between 1997 and 2005. Clinical and radiographical examinations were used to assess bone healing, limb function recovery and complications. Clinical results as well as fracture healing were excellent in all five cats. The study showed that the IM/ESF tie-in technique can be used in cats for the treatment of comminuted femoral fractures caused by pneumatic bullets.

3

Plasma calcium and magnesium concentrations in patients with fractures of long bones treated surgically

84%

Bacher M. , Sztanke M. , Sztanke K. , Pasternak K.

Journal of Elementology

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2010

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tom 15

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nr 1

5-17

EN

Bone fractures, especially when treated surgically, are connected with changes in the homeostasis of the elements of which bone compounds consist, as well as the ones which participate in controlling processes. Such changes influence both the fracture itself and the operative procedure. For successful treatment of broken bones, it can be crucial to bring the homeostasis of bioelements back to the normal state. Thus, the aim of this work has been to determine magnesium and calcium concentrations in plasma from patients with fractures of long bones, and to analyze changes in the examined elements depending on the time after the operative procedure, injury and patient’s age. The research was conducted on the blood of patients: 1) with long bone fractures treated surgically, 2) after a limb amputation because of a fracture or injury, 3) with long bone fractures and with multiorgan injury. With respect to the patients’ age, there were 3 groups: 1) patients aged 18-40 years, 2) patients aged 41-60 years, 3) patients older than 60 years. In the postoperative period, the patients were on a strict postoperative diet, receiving only i.v. 0.9% NaCl and 5% glucose solutions. Blood was taken from patients first directly after admittance to hospital and next on the first, third, fifth and seventh day after an operative procedure. Plasma calcium and magnesium concentrations were determined by the method of emission spectrometry with induction plasma (ICP-OES). The results were worked out statistically. The differences p<0.05 were taken into consideration as statistically significant. The research showed that in the blood plasma from patients with long bone fractures treated surgically, there were noticeable decreases of calcium and magnesium concentrations mainly on the first, third and fifth postoperative day. These changes depended on the extend of an operative procedure, but did not depend on the patients’ age. However, with respect to magnesium, its statistically significant decrease was noticed in the group of oldest patients. In the postoperative period, it is especially important to pay attention to calcium and magnesium concentrations, and for patients over 60 years of age magnesium supplementation is necessary. Maintenance of macronutrient homeostasis in an organism can be crucial for the patient’s convalescence process.

PL

Złamania kości, szczególnie leczone operacyjnie, wiążą się ze zmianami homeostazy pierwiastków wchodzących w skład związków budujących kości, a także biorących udział w procesach regulacyjnych. Wpływa na to zarówno samo złamanie, jak i zabieg operacyjny. Normalizacja zaburzeń w homeostazie biopierwiastków może mieć istotne znaczenie dla zrostu kości w procesie zdrowienia pacjenta ze złamaniem. Celem pracy było oznaczenie stężeń magnezu i wapnia w osoczu krwi pacjentów hospitalizowanych z powodu złamań kości długich oraz analiza tych zmian w zależności od czasu po zabiegu operacyjnego leczenia złamania, rozległości urazu oraz wieku pacjenta. Badania przeprowadzono na krwi pacjentów: 1) ze złamaniami kości długich leczonymi operacyjnie, 2) u których z powodu złamań i urazu konieczna była amputacja kończyny, 3) ze złamaniami kości długich, którym towarzyszył duży uraz wielonarządowy. Ze względu na wiek, pacjentów podzielono również na trzy grupy. Pierwszą grupę stanowiły osoby od 18. do 40. roku życia, drugą – od 41. do 60. roku życia, trzecią – powyżej 60. roku życia. Od pacjentów pobierano krew bezpośrednio po przyjęciu do szpitala oraz w 1., 3., 5. i 7. dobie po zabiegu operacyjnym. Oznaczenia stężeń pierwiastków w osoczu krwi wykonano metodą optycznej spektrometrii emisyjnej z plazmą indukcyjnie wzbudzoną (ICP-OES). Wyniki poddano analizie statystycznej. Za statystycznie istotne uznano różnice w przypadku p < 0,05. Wykazano, że w osoczu pacjentów ze złamaniami kości długich leczonych operacyjnie stwierdzono zmniejszenie stężeń wapnia i magnezu głównie w 1., 3. i 5. dobie pooperacyjnej. Zmiany te zależały od rozległości zabiegu operacyjnego, a nie były zależne od wieku. Jednak w przypadku magnezu zaobserwowano statystycznie istotne zmniejszenie jego stężenia w grupie najstarszych pacjentów. W okresie pooperacyjnym wskazane jest szczególne zwrócenie uwagi na stężenia wapnia i magnezu, a u pacjentów powyżej 60. roku życia konieczna jest suplementacja magnezu. Zapewnienie homeostazy makropierwiastków w organizmie może mieć wpływ na proces zdrowienia pacjenta.

4

Bone fracture healing under external fixator: Investigating impacts of several design parameters using Taguchi and ANOVA

84%

Kolasangiani R. , Mohandes Y. , Tahani M.

Biocybernetics and Biomedical Engineering

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2020

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tom Vol. 40, no. 4

1525--1534

EN

In this paper we aim to improve the understanding of the relationship between unilateral-uniplanar external fixator design parameters and their influences on fixator performance. Stability and strength of bone-fixator construct as well as the quality of healing were defined as our major concerns in order to evaluate the performance of fixator. The roles of six key design parameters were assessed during the early stage of healing by using finite element models. Tissue differentiation within the callus was predicted through the implementation of a mechanoregulation theory of bone healing. Taguchi and ANOVA methods were used to achieve optimal design sets for outputs and to determine contribution percentage of each design parameter on outputs. For improving overall fixator performance, optimal set of design parameters consisting of 2 mm, 8 mm, 120 mm, 20 GPa, 50 mm and 20 mm were determined by Taguchi for pin diameter, rod diameter, rod elevation, fixator Young's modulus, distance of the nearest pin to fracture site and distance between adjacent pins, respectively. Also, results of ANOVA revealed that rod elevation is the most important design parameter, with 43 % effectiveness on overall fixator performance, which was followed by fixator material and pin diameter with 28 % and 19 %, respectively. Results of this study can assist orthopedic surgeons to achieve an optimal fixator device with respect to the patient's condition and give insight into the importance of different design parameters.