Management for locking compression plate/dynamic compression plate implant failure in non union osteoporotic humerus shaft bone fracture

2016 ◽  
Vol 13 (2) ◽  
pp. 123-126
Author(s):  
Mohammed Iftekar Ali
2009 ◽  
Vol 22 (04) ◽  
pp. 1-8 ◽  
Author(s):  
O. Lanz ◽  
R. McLaughlin ◽  
S. Elder ◽  
S. Werre ◽  
D. Filipowicz

Summary3.5 locking compression plate (LCP) fixation was compared to 3.5 limited contact dynamic compression plate (LC-DCP) fixation in a canine cadaveric, distal humeral metaphyseal gap model. Thirty paired humeri from adult, large breed dogs were separated into equal groups based on testing: static compression, cyclic compression, and cyclic torsion. Humeral constructs stabilized with LCP were significantly stiffer than those plated with LCDCP when loaded in static axial compression (P = 0.0004). When cyclically loaded in axial compression, the LCP constructs were significantly less stiff than the LC-DCP constructs (P = 0.0029). Constructs plated with LCP were significantly less resistant to torsion over 500 cycles than those plated with LC-DCP (P<0.0001). The increased stiffness of LCP constructs in monotonic loading compared to constructs stabilised with non-locking plates may be attributed to the stability afforded by the plate-screw interface of locking plates. The LCP constructs demonstrated less stiffness in dynamic testing in this model, likely due to plate-bone offset secondary to non-anatomic contouring and occasional incomplete seating of the locking screws when using the torque-limiting screw driver. Resolution of these aspects of LCP application may help improve the stiffness of fixation in fractures modeled by the experimental set-up of this investigation.


Injury ◽  
2004 ◽  
Vol 35 (11) ◽  
pp. 1137-1139 ◽  
Author(s):  
Neville W. Thompson ◽  
Stephanie C. Sloan ◽  
Andrew Adair ◽  
Shaun N. Simpson

2016 ◽  
Vol 22 (1) ◽  
pp. 30 ◽  
Author(s):  
Ejaz Ahmed ◽  
Omer Khalid ◽  
Usman -ul- Haq ◽  
Abu Baker Siddiq

<p><strong>Abstract</strong></p><p><strong>Background:  </strong>Femur fractures are among the commonest pediatric injuries. Until recent past, traction and hip spica were the standard treatment for all femoral shaft fractures which required long duration of hospitalization. The management of femoral shaft fractures in children above the age of six years has evolved more towards operative approaches in the last two decades to minimize the post plaster complications i.e. decrease in incidence of malunion, short hospital stay, better nursing care and early ambulation. Recently, a variety of therapeutic alternatives such as intramedullary nailing and dynamic compression plating have become available to decrease impairment, increase convenience and decrease cost of care.</p><p><strong>Objective:  </strong>To compare the results of fracture shaft of femur in children (6 to 12 years of age) treated with Titanium Elastic Nail vs. AO – Dynamic Compression Plate fixation.</p><p><strong>Methods:  </strong>This prospective, comparative and interventional study was carried out in the department of orthopedic surgery, PGMI Lahore General Hospital, Lahore. A total of 64 patients were enrolled in this study and randomly divided into 2 groups of 32 patients each. In Group-A patients were treated with Titanium Elastic Nail and in Group – B patients were treated with AO – Dynamic Compression Plate fixation. Sample selection was done by using a pre-defined inclusion and exclusion criteria. Variables of interest were duration of operation, Infection, Limb Length discrepancy, Angulation, Time of union and implant failure. Patients were followed up from 2nd week till 24th week respectively. SPSS was used for data entry and analysis.</p><p><strong>Results:  </strong>Age range of patients was 6 – 12 years. Male patients were 51 and 13 patients were female. Eleven patients had Proximal 1/3, 45 mid shaft fracture and 8 distal 1/3 fracture. Mean operative time for DCP was 53.28 minutes and for elastic intramedullary nailing was 29.91 minutes. None of the patients in both treatment groups had limb length discrepancy. Infection and implant failure rate were the same in both treatment groups. Union was rapid till 8th week in Group-A patients after 8th week both treatment groups had equal union rate.</p><p><strong>Conclusion:  </strong>Union was achieved in all cases in both groups. Angulation, Infection and implant failure was not seen in any of the patients in both treatment gro-ups. An earlier union of bone was earlier in Group-A (Elastic Intramedullay Nail) patients as compared to Group-B (DCP).</p><strong>Key Words:  </strong>AO – DCP, Titanium Elastic Nail, Pediatric Mid Shaft Femur, Infection, Union.


Author(s):  
Midhun Krishnan

The study analyzed 20 cases of fracture shaft of hummers treated with Dynamic Compression Plate. There was a male preponderance in our study 17 (85%). Almost Also 13% of patients treated by functional bracing end up with cosmetically unacceptable angulation of>15%, whereas all operative procedures achieve good alignment of the fractured bone was observed. The rate of union in Plate osteosynthesis is 93% and the time of union is 16 - 20 weeks, and more than 90% united in 18 weeks and 7% went for non union.


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