Purpose: This study evaluated the efficacy of a 3-dimensional printed dynamic external fixator for treating proximal interphalangeal (PIP) fracture-dislocations. The null hypothesis was that there would be no difference in maintaining PIP joint reduction between a 3-dimensional printed dynamic external fixator (3DPDEF) and the pins and rubbers traction system (PRTS).
Methods: Ten cadaveric fingers underwent an oblique osteotomy at the base of the middle phalanx, recreating an unstable dorsal PIP fracture-dislocation. The percentages of compromised articular surface and middle phalanx dorsal displacement were measured. Both fixators were randomly placed on each digit and underwent 1,400 flexion-extension cycles. Efficacy, determined by joint reduction and maintenance of dorsal translation correction, was assessed using fluoroscopy before and after the cycles.
Results: The mean compromised articular surface was 50.8%. After osteotomy, PIP joint subluxation occurred at 37.8° flexion. Dorsal translation after osteotomies was 2.8 mm. After applying the 3DPDEF and the PRTS, it was 0 mm and 0.1 mm, respectively. During the cycles, all the joints remained stable and reduced. Dorsal displacement after cycles was -0.1 mm for the 3DPDEF and 0 mm for the PRTS. The mean translation difference between both fixators was 0.1 and 0 mm before and after the cycles. The translation differences before and after the cycles were 0.1 mm for both dynamic fixators.
Conclusions: The 3DPDEF is a suitable option for PIP fracture-dislocations, providing stability comparable to that of the PRTS while offering benefits, such as easy placement, controlled distraction, and clear visualization of the articular surface.
Clinical Relevance: This external fixator, characterized by its efficacy, low cost, and simplicity of application, broadens the options available to address PIP fracture-dislocations.
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http://dx.doi.org/10.1016/j.jhsa.2024.09.019 | DOI Listing |
BMC Vet Res
December 2024
University of Minnesota Veterinary Medical Center, Saint Paul, MN, USA.
Background: While limited information is available, it is possible that high or low sub-bandage pressures cause injury with external coaptation. Fiberglass casting tape is a common splinting material that is custom made for the first bandage and reused in subsequent bandage changes. The aim of this preliminary study was to determine sub-bandage pressure changes in canine hindlimbs between initial splint placement and replacement of the bandage by a different person.
View Article and Find Full Text PDFOrthop Traumatol Surg Res
December 2024
Service de chirurgie orthopédique, Hôpital Nord, Pôle Locomoteur, Assistance Publique-Hôpitaux de Marseille, Institut du Mouvement et de l'Appareil Locomoteur, Marseille, France.
Introduction: Septic nonunion is one of the most feared complications in traumatology. Two-stage management using the induced membrane technique is a validated treatment option, but to date there is no consensus on the ideal type of osteosynthesis for the second stage of surgery. The aim of this study was to compare the results of two-stage treatment of tibial septic nonunion, depending on the type of osteosynthesis used.
View Article and Find Full Text PDFJ Orthop Surg Res
December 2024
Department of Orthopedic Surgery, Ministry of the National Guard - Health Affairs, Riyadh, Saudi Arabia.
Background: An open fracture of the tibia is one of the most common and dangerous type of open fractures. In the management of these injuries, the primary focus is on reducing the infection rate, as this is crucial for achieving the best clinical outcomes. This study aims to explore how provisional external fixation duration influences the rates of infection and union in open tibial shaft fractures.
View Article and Find Full Text PDFJ Long Term Eff Med Implants
December 2024
Department of Orthopaedic Surgery, University Hospital of Ioannina, Ioannina, Greece.
Conservative treatment of clavicle fractures has the disadvantage of substantial pain and discomfort, whereas internal fixation of these fractures has a high rate of non-union. External fixation is an alternative method permitting early mobilization without disrupting the surrounding soft tissue envelope. These are extremely beneficial in young, athletic and highly functional patients as well as in patients with comminuted fractures.
View Article and Find Full Text PDFBMC Musculoskelet Disord
December 2024
Department of Orthopedics Surgery, Shandong Provincial Hospital affiliated to Shandong First Medical University, 324 Jing Wu Road, Jinan, 250021, China.
Background: The present study aimed to compare the functional outcomes of hinged external fixators and non-external fixation in open elbow arthrolysis (OEA) for post-traumatic elbow stiffness (PTES) and to evaluate their applicability and limitations in patients with posttraumatic elbow stiffness.
Methods: The clinical data of patients with PTES treated with OEA at our hospital between March 2015 and June 2022 were retrospectively analyzed. The assessed variables were the operation time, intraoperative blood loss volume, duration of hospitalization, and treatment costs.
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