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Full-Text Articles in Medicine and Health Sciences
Biomechanical Investigation Of A Novel Ratcheting Arthrodesis Nail, Jeremy Mccormick, Xinning Li, Douglas Weiss, Kristen Billiar, John Wixted
Biomechanical Investigation Of A Novel Ratcheting Arthrodesis Nail, Jeremy Mccormick, Xinning Li, Douglas Weiss, Kristen Billiar, John Wixted
Kristen L. Billiar
BACKGROUND: Knee or tibiotalocalcaneal arthrodesis is a salvage procedure, often with unacceptable rates of nonunion. Basic science of fracture healing suggests that compression across a fusion site may decrease nonunion. A novel ratcheting arthrodesis nail designed to improve dynamic compression is mechanically tested in comparison to existing nails. METHODS: A novel ratcheting nail was designed and mechanically tested in comparison to a solid nail and a threaded nail using sawbones models (Pacific Research Laboratories, Inc.). Intramedullary nails (IM) were implanted with a load cell (Futek LTH 500) between fusion surfaces. Constructs were then placed into a servo-hydraulic test frame (Model …
Use Of Circular External Fixation For Combined Subtalar Joint Fusion And Ankle Distraction., Thomas Zgonis, John Stapleton, Thomas S Roukis
Use Of Circular External Fixation For Combined Subtalar Joint Fusion And Ankle Distraction., Thomas Zgonis, John Stapleton, Thomas S Roukis
John J Stapleton DPM, FACFAS
The authors discuss a novel technique not previously published that incorporates a subtalar joint arthrodesis with an ankle joint arthrodiastasis as an alternative to a tibiotalocalcaneal arthrodesis. Young and active patients who experience refractory pain and stiffness to the rearfoot and ankle secondary to combined severe subtalar and ankle arthrosis are suitable candidates for this surgical procedure. This new approach is based on sound principles in the treatment of severe arthrosis affecting the ankle and subtalar joint. The authors are currently prospectively reviewing their surgical experience with this procedure and believe that it provides an alternative option for the patient, …
Internal And External Fixation Approaches To The Surgical Management Of Calcaneal Fractures., John Stapleton, Gennady Kolodenker, Thomas Zgonis
Internal And External Fixation Approaches To The Surgical Management Of Calcaneal Fractures., John Stapleton, Gennady Kolodenker, Thomas Zgonis
John J Stapleton DPM, FACFAS
Calcaneal fractures are one of the most difficult fractures to surgically manage and often require a steep learning curve to achieve consistent results. They usually occur in young individuals with labor intensive occupations and are associated with major complications. Conservative treatment of intraarticular calcaneal fractures with displacement often results in significant deformity, bone loss, and posttraumatic arthrosis. Optimally, an open approach is required in most cases to achieve anatomic reduction and successful long-term outcomes.
Diabetic Lisfranc Fracture-Dislocations And Charcot Neuroarthropathy., Bradley A Levitt, John Stapleton, Thomas Zgonis
Diabetic Lisfranc Fracture-Dislocations And Charcot Neuroarthropathy., Bradley A Levitt, John Stapleton, Thomas Zgonis
John J Stapleton DPM, FACFAS
The goal with Lisfranc fracture-dislocations is to regain joint congruity and reestablish midfoot stability to avoid debilitating posttraumatic arthrosis and chronic pain in the sensate patient. In the diabetic population, dense peripheral neuropathy and/or vascular disease are equally important and may alter the surgical approach to traumatic tarsometatarsal injuries. The initial diagnosis in the diabetic population may be delayed due to subtle radiographic findings and/or patient unawareness of trauma in the insensate foot. Failure to initiate treatment in the early stages of acute diabetic neuropathic Lisfranc injuries can predispose the patient to midfoot instability, potential ulceration, infection, and Charcot neuroarthropathy.
Combined Lateral Column Arthrodesis, Medial Plantar Arteryflap, And Circular External Fixation For Charcot Midfoot Collapse With Chronic Plantar Ulceration., Thomas Zgonis, Thomas S Roukis, John Stapleton, Douglas T Cromack
Combined Lateral Column Arthrodesis, Medial Plantar Arteryflap, And Circular External Fixation For Charcot Midfoot Collapse With Chronic Plantar Ulceration., Thomas Zgonis, Thomas S Roukis, John Stapleton, Douglas T Cromack
John J Stapleton DPM, FACFAS
No abstract provided.
Concomitant Osteomyelitis And Avascular Necrosis Of The Talus Treated With Talectomy And Tibiocalcaneal Arthrodesis, John Stapleton, Thomas Zgonis
Concomitant Osteomyelitis And Avascular Necrosis Of The Talus Treated With Talectomy And Tibiocalcaneal Arthrodesis, John Stapleton, Thomas Zgonis
John J Stapleton DPM, FACFAS
The goal with Lisfranc fracture-dislocations is to regain joint congruity and reestablish midfoot stability to avoid debilitating posttraumatic arthrosis and chronic pain in the sensate patient. In the diabetic population, dense peripheral neuropathy and/or vascular disease are equally important and may alter the surgical approach to traumatic tarsometatarsal injuries. The initial diagnosis in the diabetic population may be delayed due to subtle radiographic findings and/or patient unawareness of trauma in the insensate foot. Failure to initiate treatment in the early stages of acute diabetic neuropathic Lisfranc injuries can predispose the patient to midfoot instability, potential ulceration, infection, and Charcot neuroarthropathy.