Interprosthetic femoral refracture, plate breakage, stable prosthesis

2013 ◽  
Keyword(s):  
Plate Breakage

scholarly journals Computational comparison of different plating strategies in medial open-wedge high tibial osteotomy with lateral hinge fractures

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Yen-Nien Chen ◽  
Chang-Han Chuang ◽  
Tai-Hua Yang ◽  
Chih-Wei Chang ◽  
Chun-Ting Li ◽  
...  
Keyword(s):  
High Tibial Osteotomy ◽  
Peak Stress ◽  
Tibial Osteotomy ◽  
Wedge High Tibial Osteotomy ◽  
Locking Screw ◽  
Tomofix Plate ◽  
Hinge Fracture ◽  
Computational Comparison ◽  
Plate Breakage ◽  
Mechanical Studies

Abstract Background Lateral hinge fracture (LHF) is associated with nonunion and plate breakage in high tibial osteotomy (HTO). Mechanical studies investigating fixation strategies for LHFs to restore stability and avoid plate breakage are absent. This study used computer simulation to compare mechanical stabilities in HTO for different LHFs fixed with medial and bilateral locking plates. Methods A finite element knee model was created with HTO and three types of LHF, namely T1, T2, and T3 fractures, based on the Takeuchi classification. Either medial plating or bilateral plating was used to fix the HTO with LHFs. Furthermore, the significance of the locking screw at the combi hole (D-hole) of the medial TomoFix plate was evaluated. Results The osteotomy gap shortening distance increased from 0.53 to 0.76, 0.79, and 0.72 mm after T1, T2, and T3 LHFs, respectively, with medial plating only. Bilateral plating could efficiently restore stability and maintain the osteotomy gap. Furthermore, using the D-hole screw reduced the peak stress on the medial plate by 28.7% (from 495 to 353 MPa), 26.6% (from 470 to 345 MPa), and 32.6% (from 454 to 306 MPa) in T1, T2, and T3 LHFs, respectively. Conclusion Bilateral plating is a recommended strategy to restore HTO stability in LHFs. Furthermore, using a D-hole locking screw is strongly recommended to reduce the stress on the medial plate for lowering plate breakage risk.

Biomechanical Characterization of Failure the 316L Stainless Steel for Femoral Compression Plates

2017 ◽  
Vol 34 ◽  
pp. 68-74 ◽  
Author(s):  
Abdelyamine Boukhobza ◽  
Mourad Brioua ◽  
Smail Benaicha ◽  
Kamel Fedaoui
Keyword(s):  
Stainless Steel ◽  
316L Stainless Steel ◽  
Static Load ◽  
Healing Time ◽  
Metallographic Examination ◽  
Broken Bones ◽  
Compression Plate ◽  
New Surgery ◽  
Plate Breakage

The aim of this paper is to examine a premature breakage of two compression plates for fixing broken bones with different patients for the period of their recovery. Each compression plate's breakage can induce grave consequences such as a new surgery, unexpected undesired complications and a prolonged healing time. The investigation of the compression plate breakage causes required an examination of the chemical composition and steel hardness, metallographic examination as well as that of the compression plate breakage surface by means of macroscopic and microscopic observations using microscope. On the origin of the results it can be established that the breakage was caused by high static load.

Feline pantarsal arthrodesis using pre-contoured dorsal plates applied according to the principles of percutaneous plate arthrodesis

2013 ◽  
Vol 26 (05) ◽  
pp. 399-407 ◽  
Author(s):  
D. Sajik ◽  
M. Farrell ◽  
N. Fitzpatrick
Keyword(s):  
Wound Dehiscence ◽  
Normal Activity ◽  
Radiographic Evaluation ◽  
Dorsal Plate ◽  
Inclusion Criteria ◽  
Medium Term ◽  
Short Term ◽  
Plate Breakage

SummaryObjective: To describe the surgical technique for pantarsal arthrodesis (PTA) in cats according to the principles of percutaneous plate arthrodesis with application of a pre-contoured dorsal plate, without external coaptation and to report the long-term clinical outcome.Materials and methods: Retrospective review was performed of all cats treated by percutaneous plate application using a new pre-contoured dorsal plate for PTA between 2008 and 2011. Inclusion criteria were clinical and radiographic records plus clinical follow-up to at least six weeks. Data recorded included signalment, indication for surgery, postoperative care, and complications encountered. Radiographs were assessed for arthrodesis progression and complications. Outcome was assessed using an owner questionnaire.Results: Eleven cats were treated for tarsal injuries and met the inclusion criteria. Mean age was 86 ± 45 months, weight 4.50 ± 0.92 kg. The only major short-term complication encountered was wound dehiscence requiring sedation and re-suturing. In the medium-term (23.3 months ± 11.6 months) eight out of nine cats returned to normal activity and one cat showed intermittent lameness. Long-term (34.3 months ±17.5 months) radiographic evaluation was performed in seven out of nine cats; six manifested complete arthrodesis and one sustained plate breakage. Based on owner questionnaire, all nine cats returned to normal activity in the long-term, even the case with plate breakage.Conclusion: Based on our results, PTA using a custom pre-contoured dorsal plate is a suitable salvage surgery for treatment of severe tarsal injuries in cats.

Use of T-plates for the stabilisation of supracotyloid ilial fractures in 18 cats and five dogs

2008 ◽  
Vol 21 (01) ◽  
pp. 69-75 ◽  
Author(s):  
E. Viguier ◽  
J.-C. Troger
Keyword(s):  
Retrospective Study ◽  
Clinical Result ◽  
Distal Fragment ◽  
Acetabular Fragment ◽  
Operative Complications ◽  
Good For ◽  
Plate Breakage ◽  
Post Operative Complications

SummaryThe use of the AO (Arbeitgemeinschaft fur Osteosynthe- senfragen) veterinary T-plates (1.5/2 mm and 2.7/3.5 mm) forstabilisation ofsupracotyloid ilial fractures in 18 cats and five dogs was evaluated in a retrospective study. The distal fragment from the coxofemoral joint ranged from 0.5 cm to 1 cm with a mean distance of 0.85 cm. Twenty out of 23 (87%) ilial fractures healed in original alignment. Three out of 23 (13%) animals had two loosened screws of the distal fragment with fracture malunion and minor medial displacement of the acetabular fragment. Screw or plate breakage was not observed and the implants were not removed. The clinical result was ‘excellent’ for 18 animals (78%), ‘good’ for four animals (17%), and ‘poor’ for one animal (5%). The use of T-plates permits good correction ofsupracotyloid fractureswith minimal approach and minimizes post-operative complications.

Arthrodesis of the First Metatarsophalangeal Joint with Vitallium Plate Fixation

1994 ◽  
Vol 15 (1) ◽  
pp. 18-28 ◽  
Author(s):  
Michael J. Coughlin ◽  
Richard V. Abdo
Keyword(s):  
Plate Fixation ◽  
Metatarsophalangeal Joint ◽  
Delayed Union ◽  
First Metatarsophalangeal Joint ◽  
Plate Removal ◽  
Joint Fusion ◽  
Joint Surfaces ◽  
Plate Breakage

Forty-seven patients (58 feet) underwent first metatarsophalangeal joint fusion with a small Vitallium plate (Howmedica, Inc., Rutherford, NJ). Congruous joint surfaces were prepared with either cone-shaped or cup-shaped reamers. At an average follow-up of 19.2 months, 98% (57 feet) were successfully fused. Ninety-three percent (54 feet) noted good or excellent results. Plate removal was necessary in only 7% (4 feet) of cases. Complications included nonunion with plate breakage in 2% (1 foot) and delayed union in 2% (1 foot) of cases. This technique was useful and predictable in achieving successful fusion of the first metatarsophalangeal joint.

scholarly journals Volar Locking Plate Breakage after Nonunion of a Distal Radius Osteotomy

2016 ◽  
Vol 2016 ◽  
pp. 1-5
Author(s):  
Sergi Barrera-Ochoa ◽  
Sergi Rodríguez-Alabau ◽  
Andrea Sallent ◽  
Francisco Soldado ◽  
Xavier Mir
Keyword(s):  
Distal Radius ◽  
Locking Plate ◽  
Demineralized Bone Matrix ◽  
Plate Fixation ◽  
Corrective Osteotomy ◽  
Bone Matrix ◽  
Early Mobilization ◽  
Osteotomy Site ◽  
Volar Locking Plate ◽  
Plate Breakage

We report a 38-year-old male with a nonunion followed by plate breakage after volar plating of a distal radius osteotomy. Volar locking plates have added a new approach to the treatment of distal radius malunions, due to a lower morbidity of the surgical approach and the strength of the final construction, allowing early mobilization and return to function. Conclusion. Plate breakage is an uncommon complication of volar locking plate fixation. To our knowledge, few cases have been described after a distal radius fracture and no case has been described after a distal radius corrective osteotomy. In the present case, plate breakage appears to have occurred as a result of a combination of multiple factors as the large corrective lengthening osteotomy, the use of demineralized bone matrix instead of bone graft, and the inappropriate fixation technique as an unfilled screw on the osteotomy site, rather than the choice of plate.

scholarly journals SURGICAL TREATMENT OF III–IV GRADE SCOLIOSIS WITH PLATE ENDOCORRECTOR

2006 ◽  
pp. 033-038
Author(s):  
Ravil Rafailovich Gatiatulin ◽  
Valentina Spiridonovna Lapinskaya ◽  
Vladimir Nikolayevich Shubkin ◽  
Timofey Viktorovich Frolyakin ◽  
Aleksandr Erikovich Kovalenko ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Three Dimensional ◽  
Deformity Correction ◽  
Third Generation ◽  
The Third ◽  
Scoliotic Deformity ◽  
Long Term Follow Up ◽  
Plate Breakage

Objectives. To analyze the efficacy of surgery using the original plate endocorrectors for III–IV grade idiopathic progressing scoliosis. Materials and methods. Two-plate endocorrector was used in surgical treatment of 380 patients. Out of them 171 patients at the age of 13–15 years had vertebral body apophysis ossification of stage 2–3 according to Risser’s test. Scoliosis was congenital in 12 patients (3.2 %) and idiopathic in 368 patients (96.8 %). The smallest coronal angle of curve according to Cobb was 40°, the largest one – 145°. Surgery of severe IV grade scoliotic deformity (curve angle of 60–90°) was performed in 178 patients. Results. Patients with non-removable instrumentation show the maintenance of post-surgical correction within 75–80% in long-term follow-up period (up to 9 years). Complications related to the plate endocorrector were observed in 9.8 % of cases: aseptic serous reaction induced by instability of the construct elements – in 3.7 %, plate breakage and release of endocorrector locking – in 5.3 %. Conclusion. Plate endocorrector of the third generation provides effective three-dimensional deformity correction for idiopathic III–IV grade scoliosis. The endocorrector does not prevent further spine growth in children after surgery.

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