Abstract:
BACKGROUND::Lesser toe proximal interphalangeal (PIP) joint arthrodesis is one of the most common foot and ankle elective procedures often using K-wires for fixation. K-wire associated complications led to development of intramedullary fixation devices. We hypothesized that X Fuse (Stryker) and Smart Toe (Stryker) would provide stronger and stiffer fixation than K-wire fixation. METHODS::12 cadaveric second toe pairs were used. In one group, K-wires stabilized 6 PIP joints, and 6 contralateral PIP joints were fixed with X Fuse. A second group used K-wires to stabilize 6 PIP joints, and 6 contralateral PIP joints were fixed with Smart Toe. Specimens were loaded cyclically with extension bending using 2-N step increases (10 cycles per step). Load to failure and initial stiffness were assessed. Statistical analysis used paired t tests. RESULTS::K-wire average failure force, 91.0 N (SD 28.3), was significantly greater than X Fuse, 63.3 N (SD 12.9) ( P < .01). K-wire average failure force, 102.3 N (SD 17.7), was also significantly greater than Smart Toe, 53.3 N (SD 18.7) ( P < .01). K-wire initial stiffness 21.3 N/mm (SD 5.7) was greater than Smart Toe 14.4 N/mm (SD 9.3) ( P = .02). K-wire failure resulted from bending of K-wire or breaching cortical bone. X Fuse typically failed by implant pullout. Smart Toe failure resulted from breaching cortical bone. CONCLUSION::K-wires may provide stiffer and stronger constructs in extension bending than the X Fuse or Smart Toe system. This cadaver study assessed stability of the fusion site at time zero after surgery. CLINICAL RELEVANCE::Our findings provide new data supporting biomechanical stability of K-wires for lesser toe PIP arthrodesis, at least in this clinically relevant mode of cyclic loading.
journal_name
Foot Ankle Intjournal_title
Foot & ankle internationalauthors
Rothermel SD,Aydogan U,Roush EP,Lewis GSdoi
10.1177/1071100718805066subject
Has Abstractpub_date
2019-02-01 00:00:00pages
231-236issue
2eissn
1071-1007issn
1944-7876journal_volume
40pub_type
杂志文章abstract:BACKGROUND:Conventional treatment for tibiotalar joint arthritis relies on arthrodesis or prosthetic arthroplasty. Fresh osteochondral allografting is an alternative procedure to replace diseased articular cartilage. METHODS:Eleven patients (average age 43 years; range 18 to 65 years) had fresh osteochondral grafting ...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/107110070502601002
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journal_title:Foot & ankle international
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journal_title:Foot & ankle international
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journal_title:Foot & ankle international
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abstract:BACKGROUND:The importance of isolated gastrocnemius contracture in disorders of the foot and ankle has been established in recent years. The aim of this study was to describe the proximal anatomical approach to the medial and lateral heads of gastrocnemius and to compare the sizes of the medial and lateral heads of the...
journal_title:Foot & ankle international
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abstract:BACKGROUND:Coronal plane deformity is common in patients who undergo total ankle arthroplasty. The correction of this deformity is paramount to the long-term survival of the implant. Coronal plane correction is achieved with soft tissue balancing and, in some part, is maintained through articular geometry constraint. T...
journal_title:Foot & ankle international
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abstract:BACKGROUND:The tendo Achilles (TA) is a tendon very susceptible to injury. Biomechanical methodologies for exploring tendon strain are limited, however, as they are typically performed in vitro or by indirectly measuring the displacement of reference markers. By using panoramic ultrasound, this study reports a novel ap...
journal_title:Foot & ankle international
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journal_title:Foot & ankle international
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abstract:BACKGROUND::The effect of bone mineral density (BMD) on outcomes from total ankle arthroplasty (TAA) has not been studied. BMD can be estimated by measuring Hounsfield units (HU) on standard computed tomography (CT), which is frequently performed prior to TAA. We aimed to identify whether tibial and talar HU measured f...
journal_title:Foot & ankle international
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abstract::Thirteen patients who had undergone unilateral triple or double arthrodesis were studied an average of 5.2 years after surgery. Patients with a neuromuscular disorder; inflammatory arthritis; or any other focus of lower extremity arthritis, deformity, or joint dysfunction were excluded from the study. Clinical and rad...
journal_title:Foot & ankle international
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abstract:BACKGROUND:Chronic exertional compartment syndrome (CECS) occurs bilaterally in approximately 60% of patients. Fasciotomy is the primary corrective treatment. We hypothesized that bilateral fasciotomy can be done during the same operative procedure with early return to sports and low complication rates METHOD:Sixteen ...
journal_title:Foot & ankle international
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journal_title:Foot & ankle international
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journal_title:Foot & ankle international
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journal_title:Foot & ankle international
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