Fixation Strength of Anteriorly Inserted Headless Screws for Talar Neck Fractures

Capelle, Jonathan H.; Couch, Cory G.; Wells, Kevin; Morris, Randal P.; Buford, William L.; Merriman, David J.; Panchbhavi, Vinod K.

doi:10.1177/1071100713479586

Cited by 19 publications

(5 citation statements)

References 8 publications

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“…Capelle et al (9) reported that with anteroposterior headless variable-pitch screw fixation, the failure yield force was 359 N, similar to that observed in the present study.…”

Section: Discussionsupporting

confidence: 92%

“…With the introduction of newer implants, such as headless variable-pitch screws and locking plates, questions have arisen regarding the quality of these implants and their inherent advantages and disadvantages (9). Fractures of the talar neck are difficult to treat, because the anatomy of the talus is complex, which limits surgical access and applicable techniques.…”

Section: Discussionmentioning

confidence: 99%

“…Biomechanical testing has shown that headless variable-pitch screws improve fixation of the talar head compared with conventional screws (9). Locking plate fixation provides suboptimal stability.…”

mentioning

confidence: 99%

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Mechanical Comparison of Headless Screw Fixation and Locking Plate Fixation for Talar Neck Fractures

Karakaşlı

Hapa

Erduran

et al. 2015

The Journal of Foot and Ankle Surgery

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“…Capelle et al (9) reported that with anteroposterior headless variable-pitch screw fixation, the failure yield force was 359 N, similar to that observed in the present study.…”

Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Mechanical Comparison of Headless Screw Fixation and Locking Plate Fixation for Talar Neck Fractures

Karakaşlı

Hapa

Erduran

et al. 2015

The Journal of Foot and Ankle Surgery

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“…The FEA results of the intact ankle model and talar neck fracture model fixed by dual CS were predicted to validate the finite element model and in good consistency with previous literature. [ 25 ]…”

Section: Methodsmentioning

confidence: 99%

Comparison of different internal fixation implants in the treatment of talar neck fractures: A finite element analysis

Fu,

Cao,

et al. 2023

Jt Dis Relat Surg

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Objectives This study aimed to analyze the biomechanics of cannulated screws (CS) with or without a lateral locking plate (LLP) in talar neck fractures through a finite element analysis. Patients and methods The computed tomography image of the talus from a healthy volunteer (adult male) was used to reconstruct a three-dimensional talar model. The method for fixing talar neck fractures with CS and an LLP was planned using computer-aided design software. Afterward, the three-dimensional models of comminuted talar neck fractures were used to simulate fixation with anteroposterior parallel dual CS, single CS+LLP, and dual CS+LLP. Finally, finite element analysis was carried out to compare the outcomes of dual CS+LLP to those of single CS+LLP and to those of using dual CS alone. The displacement and von Mises stress values of the three groups with different internal fixation were analyzed. Results For a simple talar neck fracture, the lowest amount of displacement was obtained with CS+LLP (0.407 mm), while dual CS (0.459 mm) showed the highest amount of total displacement; the lowest amount of peak stresses was obtained with CS+LLP (5.38 MPa), while dual CS (8.749 MPa) showed the highest amount of total peak stresses. For a comminuted talar neck fracture, the lowest amount of displacement was obtained with CS+LLP (0.398 mm), while dual CS (0.408 mm) showed the highest amount of total displacement; the lowest amount of peak stresses was obtained with CS+LLP (129.9 MPa), while dual CS (205.9 MPa) showed the highest amount of peak stresses. Conclusion Compared to the other two groups, the dual CS+LLP group had better biomechanics properties in the displacement and stress peak of the talus and implant. Thus, the use of dual CS+LLP fixation is recommended for the surgical treatment of comminuted talar neck fractures.

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“…In terms of surgical treatment for talar neck fractures, a screw is generally inserted from the anterior part of the talus [ 5 , 6 ]; insertion from the posterior section of the talus has biomechanical and anatomical advantages over anterior insertion in that it provides greater fixation and avoids chondral injury to the talonavicular joint [ 7 , 8 ]. However, there have been reported risks to this approach, such as injury to the sural nerve and flexor hallucis longus (FHL), owing to a narrower safety zone for screw insertion [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Fragility fracture of talar neck in an osteoporotic patient treated by posterior-to-anterior screw fixation under hindfoot endoscopy: a case report

Morio

Morimoto

Tachibana

et al. 2023

Journal of Surgical Case Reports

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Fragility fractures of the talar neck are extremely rare. Here, we describe a case of fragility fracture of the talar neck associated with osteoporosis in a 76-year-old female, who was treated by posterior-to-anterior screw fixation under hindfoot endoscopy. A 76-year-old female cleaner with a history of osteoporosis complained of pain in her right ankle when going downstairs. Radiological findings revealed a fragility fracture of the talar neck associated with osteoporosis. Because the patient was elderly and it was difficult to treat using a prolonged non-weight-bearing cast, we performed a posterior-to-anterior parallel dual screw fixation under hindfoot endoscopy for this case. As a result, the patient was able to return to work 8 weeks after surgery without pain, dysfunction or complication. Osteosynthesis with posterior-to-anterior screw fixation under hindfoot endoscopy successfully treated a rare case of fragility fracture of the talar neck in a 76-year-old female cleaner.

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Fixation Strength of Anteriorly Inserted Headless Screws for Talar Neck Fractures

Cited by 19 publications

References 8 publications

Mechanical Comparison of Headless Screw Fixation and Locking Plate Fixation for Talar Neck Fractures

Mechanical Comparison of Headless Screw Fixation and Locking Plate Fixation for Talar Neck Fractures

Comparison of different internal fixation implants in the treatment of talar neck fractures: A finite element analysis

Fragility fracture of talar neck in an osteoporotic patient treated by posterior-to-anterior screw fixation under hindfoot endoscopy: a case report

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