Closed reduction and percutaneous fixation of sacroiliac luxations in cats using 2.4 mm cannulated screws – a cadaveric study

2012 ◽  
Vol 25 (01) ◽  
pp. 22-27 ◽  
Author(s):  
E. Binder ◽  
U. Reif ◽  
M. Biel ◽  
J. Bokemeyer ◽  
M. Kramer ◽  
...  
Keyword(s):  
Closed Reduction ◽  
Diameter Ratio ◽  
Width Ratio ◽  
Percutaneous Fixation ◽  
Cannulated Screws ◽  
Pelvic Anatomy ◽  
Surgical Time ◽  
Computed Tomographic ◽  
Canal Diameter ◽  
Canal Width

SummaryObjectives: To describe fluoroscopically assisted percutaneous placement of 2.4 mm cannulated screws for fixation of artificially induced sacroiliac luxations in cats, and to evaluate the success of this technique in restoration of normal pelvic anatomy.Methods: Fluoroscopically assisted closed reduction and percutaneous fixation of sacroiliac luxations using 2.4 mm cannulated screws was performed in cadavers of 12 cats. Pre- and postoperative radiographs and postoperative computed tomographic scans were used to evaluate screw placement, screw purchase within the sacral body, reduction of the sacroiliac joint, pelvic canal diameter ratio, and hemipelvic canal width ratio.Results: Mean total surgical time was 6 minutes and 10 seconds ± 53 seconds and mean total time of fluoroscopic screening for each procedure was 44 seconds ± 6 seconds. Mean percent of reduction was 98.33% and mean screw purchase within the sacral body was 73%. Eleven out of 12 screws were placed in a satisfactory location in the sacral body. Pelvic canal diameter ratio and hemipelvic canal width ratio indicated successful restoration of the pelvic anatomy.Clinical significance: Our results confirm that fluoroscopically assisted percutaneous placement of 2.4 mm cannulated screws is a feasible technique for fixation of sacroiliac luxations in cats. Mechanical properties of this fixation technique need to be evaluated before the use in clinical patients.

scholarly journals Effect of canal width contraction on the hydraulic parameters and scour downstream water structures

2018 ◽  
Vol 18 (3) ◽  
pp. 93-101
Author(s):  
Mohamed A. Ashour ◽  
Tawab E. Aly ◽  
Mahmoud M. Mostafa
Keyword(s):  
Experimental Study ◽  
Experimental Models ◽  
Width Ratio ◽  
Hydraulic Parameters ◽  
Flow Properties ◽  
Canal Width ◽  
Hydraulic Conditions ◽  
Scour Hole ◽  
Design Requirements ◽  
Experimental Runs

AbstractThe dimensions of many water streams, which satisfy proper hydraulic conditions, may not be compatible with the designed dimensions of an irrigation work that needs to be constructed in some locations. The design requirements of such irrigation works may involve a contraction in the channel width in the required location. This contraction, of course, affects different flow properties and the scour hole formed downstream of these structures. Therefore, the present experimental study aims to investigate the effect of the transition angle and the contraction on the flow properties and on the scour phenomenon downstream water structures. Through 460 experimental runs, carried out on 20 experimental models, the study proved that, for an efficient hydraulic performance and economic design, the best transition angle (θ) for the approaches of water structures is 30° with a relative contracted width ratio (r = b/B) not less than 0.6.

Single Transsacral Screw and Nut Stabilization of Bilateral Sacroiliac Luxation in 20 Cats

2018 ◽  
Vol 31 (01) ◽  
pp. 044-052 ◽  
Author(s):  
James Grierson ◽  
Andrew Moores ◽  
Andrea Pratesi
Keyword(s):  
Medical Records ◽  
Normal Activity ◽  
Width Ratio ◽  
Slight Reduction ◽  
Short Term ◽  
Canal Width ◽  
Long Term Follow Up ◽  
Safe Technique

Objective This article aims to describe the use of a single transsacral screw and nut in a cohort of cats with bilateral sacroiliac (SI) luxation and document its radiographic and clinical outcome. Methods Medical records and radiographic studies of cats with bilateral SI luxation managed with a transsacral screw and nut stabilization were reviewed. Short-term follow-up included clinical examination and radiographs. Long-term follow-up was via owner questionnaire. Results Twenty consecutive cats with bilateral SI luxation were included. Six cats (35%) had additional musculoskeletal injuries that required stabilization. Luxations were stabilized with a single 2.7 cortical self-tapping transsacral screw and nylon nut (a metallic nut was used in one case). Postoperative radiographs confirmed SI reduction in all cats and a mean pelvic canal width ratio of 1.21 (a ratio of ≥1.1 was considered optimal). All cats available at follow-up examination were able to walk without signs of discomfort. Evaluation of follow-up radiographs showed maintenance of SI reduction and slight reduction of mean pelvic canal width ratio (1.18). Fourteen owner questionnaires were returned (median follow-up time of 40 months): nine cats were deemed to have normal activity and five cats were reported to have slight to mild reduced ability to jump or run. Clinical Significance The use of transsacral screw and nut stabilization of bilateral SI luxation in cats is a successful, repeatable and safe technique.

scholarly journals Comparison of suprapatellar versus infrapatellar approaches of intramedullary nailing for distal tibia fractures

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Yao Lu ◽  
Gen Wang ◽  
Bin Hu ◽  
Cheng Ren ◽  
Liang Sun ◽  
...  
Keyword(s):  
Blood Loss ◽  
Fracture Healing ◽  
Closed Reduction ◽  
Distal Tibia ◽  
Reduction Rate ◽  
Healing Time ◽  
Reduction Technique ◽  
Surgical Time ◽  
Tibia Fractures ◽  
Distal Tibia Fractures

Abstract Background This study aimed to analyze and compare the clinical and functional outcomes of distal tibia fractures treated with intramedullary nailing (IMN) using the suprapatellar (SP) and infrapatellar (IP) surgical approaches. Methods A retrospective analysis was performed in 63 patients with distal fractures that were treated with IMN between August 2014 and August 2018. A total of 27 and 36 patients underwent IMN using the SP and IP techniques, respectively. The surgical time, blood loss, closed reduction rate, rate of adjuvant reduction technique, fracture healing time, and complications were reviewed in this study. Anterior knee pain was assessed using the visual analog scale. The Lysholm Knee Scoring Scale and American Orthopaedic Foot and Ankle Society (AOFAS) scale were used as clinical measurements. Results A total of 63 patients, with a minimum follow-up of 12 months, were evaluated. The average surgical time, blood loss, rate of adjuvant reduction technique, closed reduction rate, fracture healing time, and Lysholm Knee Scoring Scale score were insignificantly different (P > 0.05) between the two groups. However, the SP approach was superior to the IP approach in terms of pain score, AOFAS score, and fracture deformity rate (P < 0.05). Conclusions In the treatment of distal tibia fractures, the SP IMN technique is associated with a significantly higher functional outcome, lower knee pain, and lower rate of fracture deformity than the IP IMN technique.

Outcome of Paediatric Supracondylar Fractures of Humerus with Closed Reduction and Percutaneous Fixation with 2 Crossed K-Wires

2016 ◽  
Vol 2 (1) ◽  
pp. 42
Author(s):  
Shamim Ahmad Bhat ◽  
Raja Rameez ◽  
Adnan Zahoor ◽  
Tabish Tahir ◽  
AsifNazir Baba ◽  
...  
Keyword(s):  
Closed Reduction ◽  
Percutaneous Fixation ◽  
Supracondylar Fractures ◽  
K Wires

Unilateral synostosis of the zygomaticotemporal suture associated with mandibular coronoid process impingement in a dog

2013 ◽  
Vol 26 (05) ◽  
pp. 421-424 ◽  
Author(s):  
E. Fraga-Manteiga ◽  
T. Schwarz ◽  
D. N. Clements ◽  
J. M. Ryan
Keyword(s):  
Temporomandibular Joint ◽  
Closed Reduction ◽  
Clinical Signs ◽  
Coronoid Process ◽  
Open Mouth ◽  
Computed Tomographic

SummaryA 13-month-old dog was investigated for the complaint of open-mouth locked jaw. There were not any previous episodes of trauma witnessed. Computed tomographic evaluation revealed unilateral zygomaticotemporal synostosis and associated craniofacial asymmetry, with impingement of the mandibular coronoid process resulting in unilateral temporomandibular joint subluxation. Closed reduction of the subluxation was not maintained. Partial zygomaticotemporal suturectomy resulted in resolution of the clinical signs. To the author's knowledge, isolated zygomaticotemporal synostosis with associated temporomandibular subluxation has not been reported in the dog.

Arthroscopically-Assisted Reduction of Intra-Articular Fractures of the Distal Radius

1998 ◽  
Vol 23 (3) ◽  
pp. 391-395 ◽  
Author(s):  
L. ADOLFSSON ◽  
P. JÖRGSHOLM
Keyword(s):  
Distal Radius ◽  
Closed Reduction ◽  
Joint Surface ◽  
Percutaneous Fixation ◽  
Articular Fractures ◽  
Intraarticular Fractures ◽  
Arthroscopically Assisted ◽  
Arthroscopically Assisted Reduction

Twenty-seven patients with intraarticular fractures of the distal radius with a step of more than 1 mm in the joint surface after attempted closed reduction, were treated by reduction under arthroscopic control and percutaneous fixation. All fractures healed without measurable incongruity of the joint surface and at follow-up 3 to 38 months after surgery 19 patients had excellent and eight patients good results according to the Mayo modified wrist score.

Sign in / Sign up

Export Citation Format

Share Document