scholarly journals Management of displaced patella fracture with modified tension band wiring and percutaneous cannulated screws-a dilemma

Author(s):  
Vishal Singh ◽  
Avinash Gundavarapu ◽  
Alokeshwar Sharma ◽  
Tejas Patel

<p class="abstract"><strong>Background:</strong> Displaced patella fracture has seen various surgical management methods in the past among which tension band wiring (TBW) and less invasive percutaneous cannulated cancellous (CC) screw  fixation are mostly preferred and debated on which is better option. The study has been designed to compare the functional outcome and various parameters of both the methods.</p><p class="abstract"><strong>Methods:</strong> The study was conducted as prospective clinical study in 30 skeletally mature patients with x-ray evidence of patella fracture fulfilling inclusion and exclusion criteria, out of which 15 were done tension band wiring and rest percutaneous cancellous screw and outcome graded as excellent, good, fair and poor based on Lysholm knee score.<strong></strong></p><p class="abstract"><strong>Results:</strong> The comparison of the mean values of the Lysholm score in patients operated with patella TBW (92.47) were better than with percutaneous CC screw fixation (88.93). Patella TBW was responsible for all the cases of infection 2 (6.67%) and delayed non-union 1 (3.33%). Whereas stiff was nearly equal in both the techniques. The comparison of the mean values of the knee flexion in patients operated by using percutaneous CC screw (107.27) was better than patella TBW (105.67).</p><p class="abstract"><strong>Conclusions:</strong> Patients managed with CC screw fixation technique achieved better knee function, especially in the early postoperative period. The reported advantages of the percutaneous fixation technique include avoidance of extended incisions, preservation of the blood supply to the patella, and the possibility of a simpler removal of all hardware in the clinical setting. These results suggest that the percutaneous CC screw technique may be a superior alternative to conventional modified tension band wiring.</p>

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Puripun Jirangkul ◽  
Arkaphat Kosiyatrakul

Abstract Background Modified tension band fixation has become commonly used for transverse patella fractures. The conventional stainless steel wire provides sufficient stability but may be associated with complications. Objective The study aimed to evaluate the effectiveness of a new modified tension band fixation technique for transverse patella fractures using a nonabsorbable suture. Material and methods We present the result of a prospective series using a nonabsorbable suture (FiberWire) for transverse patella fractures. The mean follow-up period totaled 12 months. A total of 16 patients were evaluated by radiographic and clinical review. The postoperative clinical evaluation employed Lysholm and Böstman scores. Result All clinical results on follow-up were good to excellent. Minimal intra-articular joint stepping and further fracture displacement were recorded. No patient needed re-operation, and functional outcomes of the knee were satisfactory. No significant differences were found between the injured and contralateral knee range of motion. No symptomatic implants and skin complications were noted, and all fractures were completed heal within 15 weeks. Conclusion FiberWire provided sufficient stability and reduced postoperative complications. The results proved appropriate, and the technique has merit, as it obviates the need for re-operation.


2014 ◽  
Vol 27 (3) ◽  
pp. 206 ◽  
Author(s):  
Young Min Lee ◽  
Kook Jin Chung ◽  
Ji Hyo Hwang ◽  
Hong Kyun Kim ◽  
Yong Hyun Yoon

2020 ◽  
Vol 11 (4) ◽  
pp. 7985-7989
Author(s):  
Senthil Loganathan ◽  
Raghavendran B ◽  
Thiyagarajan U ◽  
Pradeep J

Patella fractures accounts for 1% of all skeletal injuries.  Patella fractures usually need to be treated with accurate reduction and fixation to obtain optimal knee function. Improper reduction of the articular fragments leads to complications like arthritis and quadriceps dysfunction. Tension band wiring and pasting are commonly performed fixation methods. Tension band wiring with K-wires is associated with wire prominence and soft tissue irritation. Cannulated cancellous screw fixation of the fracture and tension band wiring through the cannulated screws avoid the complication of wire migration and breakage.   In our study, we fixed these fractures with cannulated cancellous screws and tension band. This is a prospective study done in SRMC from 2012-2017. A total of 17 Patients with transverse patella fracture are taken into a study, 4mm cannulated cancellous screws with 18 mm stainless steel wire is used for anterior tension band wiring. Extensor retinaculum closure is done for all these patients. All patients had excellent knee function, according to KSS. There was no case of implant prominence or soft issue irritation in any of these patients. One patient had extensor lag. Cannulated cancellous screw with anterior tension band wiring is a reliable, effective and reproducible technique in treating transverse patella fractures.


1959 ◽  
Vol 6 (2) ◽  
pp. 261-271 ◽  
Author(s):  
A. A. Townsend

To determine experimentally the mean value of a randomly fluctuating quantity, it may be necessary to measure the average value over a considerable interval of time. This problem arose in a recent study of the temperature fluctuations over a heated horizontal plate, and a system was used that depended on the counting of electrical pulses generated at a rate proportional to the quantity being measured. The advantage of this technique is that mean values may be measured over time intervals of almost unlimited length with little added difficulty for the experimenter. Circuits are described which measure: (a) the mean square of a fluctuating quantity and of its time-derivative, (b) the statistical distribution of the fluctuations, (c) the mean frequency of the fluctuation assuming a particular value, and (d) the mean product of two fluctuating quantities. Over the range of use, the stability and linearity of the calibrations is better than 1%, more than sufficient for work on natural convection. In its present form, the equipment responds uniformly to all frequencies below 100 c/s, but it would not be difficult to extend this range of response to higher frequencies.


2020 ◽  
Vol 4 (4) ◽  
pp. 137-141
Author(s):  
Dr. Abbas Silman Altaei ◽  
Dr. Abdulameer Raheem Hussein ◽  
Dr. Aamer Naji Shaalan

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