RESUMEN
The aim of this article is to present a modification of Minkow's approach for open reduction and fixation of mandibular fractures in children using a single 40-cm length Ivy loop wire. This wire was used with its two tails modified into two circummandibular wires. This modification has the advantages of maintaining the fragments in close proximity with no need for additional wires, and no need for surgery to remove the wire
RESUMEN
Purpose: This study was aimed to determine whether a short period of maxillomandibular fixation [MMF] followed by an arch bar splint wired to the lower jaw is a suitable alternative to conventional MMF for treatment of mandibular fractures
Patients and Methods: Thirty patients with mandibular fractures associated with no other facial fractures were selected. They were randomly assigned into 2 groups for treatment with MMF for 4 to 6 weeks [group A], and MMF for a short period of 2 weeks followed by an arch bar splint wired to the lower jaw for 2 to 4 weeks [group B]. Complications were recorded, and post-treatment maximum interincisal mouth opening was measured at 1 week, and 3 and 6 months. Age and sex - matched control group was randomly selected. The groups were then compared for significant differences. A value of P<. 05 was considered significant
Results: The 2 patient groups were matching in age, gender, site and cause of fracture, and the mean time from injury to MMF. They were not significantly different in relation to the time required for fracture healing [P=.315], postoperative infection [P=1] and malocclusion [P=.598]. Delayed union and nonunion were not encountered. When compared to group A patients, group B patients had an early significantly greater degree in mouth opening [P=.001], and at no time was there a significant difference in the degree of mouth opening between group B patients and the control group [1 week; P=.079, 3 months; P=.166, 6 months; P=.378]
Conclusion: In selected cases, a short period of MMF followed by an arch bar splint wired to the lower jaw is a suitable alternative to conventional MMF for treatment of adult mandibular body, symphysis, and angle fractures. The method is effective and significantly reduces the potential adverse effects of long term MMF
RESUMEN
The aim of this article was low present a modification of Minkow's approach for open reduction and fixation of mandibular fractures in children. A single 40-cm length Ivy loop wire was used with the two tails of the wire modified into two circummandibular wires. This modification has the advantages of maintaining the fragements in dose proximity with no need for additional wires, and also, no need for surgery to remove the wire
RESUMEN
Purpose: This study was aimed to evaluate the healing of animal jaw defects treated with resorbable bioactive glass [RBG] by using bone densitometry and immunohistochemical expression of fibronectin [FN]
Materials and Methods: 20 guinea pigs randomly allocated into equal 4 groups were used in this study. In each animal, a full thickness surgical defect involving the cortex and spongiosa was made at the anterior mandible, inferior to the lower central incisors. The left surgical defect was left empty as a control side and the right was loosely packed with RBG as a study side. Animals were sacrificed at 1 week, and 1, 2 and 3 months postoperatively, whereby specimens were prepared for evaluation with bone densitometry scanning and immunohistochemistry
Results: On gross examination, no local tissue reaction was observed. The material was compatible, non-toxic, and not recognized as foreign in all animals. Although the defects filled with RBC contained the greatest amount of bone trabeculae, bone densitometry scanning revealed no statistically significant difference between groups [P>0.05] at the different intervals of the study
Conclusion: Despite the difference in healing of animal jaw defects was not dramatic between the control and study sides. RBG may be of value in large bony defects, whereby it acts as a scaffold for bone tissue ingrowth and organization, with subsequent dissolution of the scaffold material through the processes of biodegradation and bone remodeling
RESUMEN
Background: The oral approach for incision and drainage [1 and D] in patients presenting with submasseteric space [SMS] abscesses and marked trismus is more difficult and requires a general anesthetic necessitating an anesthetist experienced in fiberoptic guided nasal intubation. In such patients, ultrasound - guided drainage [USGD] has been attempted to obviate this need
Purpose: The purpose of this trial was to report our experience with the surgical management of 11 SMS abscesses, with special reference to their USGD
Materials and Methods: Seven males and 4 females ranging in age from 18 to 41 years with an age of 25 years participated in this trial. They were initially examined with the US and their abscesses were subsequently drained under US guidance using a 16 - gauge IV catheter. An antibiotic regimen was prescribed and arrangements were made to see the patients daily for 5 days. USGD was repeated after 24 hours, and 24 hours later the infection course was monitored in each patient. Patients with non-resolving infection had their abscesses formally incised and drained extraorally. The source of infection was removed as soon as the acute phase of infection passed and the interincisal opening [IIO] allowed. The catheter or corrugated drain was removed when the discharge ceased or became minimal. Patients were then instructed to continue a 3-day course of an antibiotic and to return after 1 week and then after 1 month
Results: Resolution of infection was successfully achieved by USGD with no need for I and D in 8 out of the 11 patients [73%]. In those patients, the average total amount of pus removed was 8.5mL, and the average IIO was 17.4 mm immediately after an average initial aspirate of 4.5 mL of pus. I and D was required in the remaining 3 patients [27%]. In those patients the average total amount of pus removed was 17.5mL, and the average IIO was 7.7mm immediately after an average initial aspirate of 9.3mL of pus
Conclusion: Resolution of infection with USGD is more probable if there was an immediate improvement of the IIO to about 1.5 cm or more after an initial aspiration of 5 mL of pus