External Fixation in Orthopedics

Abstract

Background: The purpose of this study is to evaluate a new method for treating obsolete acetabular dislocation with limb discrepancy by external xation assisted pre-reduction. Methods: Thirteen patients admitted from January 2010 to February 2018 with a mean duration from injury to surgery of 5.0±2.1 months and an average preoperative leg-length discrepancy of 7.7±2.3 cm were enrolled in this study. The dislocation and associated acetabular fracture type, clinical outcomes and residual limb equality were evaluated. Results: All patients were posterior dislocations and nine presented with acetabular fractures and were followed-up at least 12 months. The average traction duration of external xators was 28.8±8.0 days and all patients received second-stage open reduction and internal xation. Six patients showed residual limb discrepancy within 2 cm. Patients showed signi cant improvement in hip function and pain relief. Complications including avascular femoral head necrosis and osteoarthritis occurred in 3 patients. Conclusion: Effective correction of limb discrepancy and improved function showed in patients with obsolete acetabular dislocations and limb equality using traction by external xation combined with second-stage open reduction. The long-term outcomes need continued follow-up.

Single-Stage Reconstruction with Innate Chimeric-Free Fibula Flap in Limb-Preserving Excision of Upper Limb Sarcomas

“…Numerous reconstructive options for extremity bone defects following WLE exist in the form of non-vascularized cancellous or cortical autografts, allografts, bone transport procedures, and custom mega-prosthetic replacements. 11 12 13 14 15 16 The fibula is a long and straight tubular bone that has reliable vascularity relatively constant anatomy, and its shape allows intramedullary reaming into long bones, 17 18 19 with minimal donor site morbidity. A vascularized-free fibular flap can successfully reconstruct long postexcisional bony defects.…”

Kinematic adjustability of unilateral external fixators for fracture reduction and alignment of axial dynamization

“…It is worth to note that the alignment of axial dynamization shares the same kinematic constraints on external fixators as the alignment of bone lengthening (Gugenheim, 2004;Saldanha et al, 2004). The constraint equations and the criteria established for the alignment of axial dynamization apply to external fixator for the alignment of bone lengthening.…”

Elementos De Osteosintesis De Uso Habitual en Fracturas Del Esqueleto Apendicular: Evaluacion Radiologica

“…Las complicaciones de todos estos sistemas incluyen infección del trayecto de la púa, aflojamiento de éste, secuestros en anillo y rotación de los fragmentos (4,(6)(7)(8) .…”