Nounion

INTRODUCTION: Fracture nonunion remains a devastating complication and may occur for several reasons, though the microbial contribution remains poorly estimated. Next-generation sequencing (NGS) techniques, including 16S rRNA gene profiling, are capable of rapid bacterial detection within clinical specimens. Nonunion cases may harbor microbes that escape detection by conventional culture methods that contribute to persistence. Our aim was to investigate the application of NGS pathogen detection to nonunion diagnosis...

Objective: To compare the effectiveness of flexible fixation and rigid fixation in the treatment of ankle pronation-external rotation fractures with distal tibiofibular syndesmosis. Methods: A retrospective analysis was made on the clinical data of 50 patients with ankle pronation-external rotation fractures and distal tibiofibular syndesmosis treated between January 2013 and December 2015. Suture-button fixation was used in 23 patients (flexible fixation group) and cortical screw fixation in 27 patients (rigid fixation group)...

Objective: To make a systematic assessment of the complications of open reduction and internal fixation versus external fixation for unstable distal radius fractures. Method: A computer-based online search of PubMed, ScienceDirect, EMBASE, BIOSIS, Springer and Cochrane Library were performed.The randomized and controlled trials of open reduction and internal fixation versus external fixation for unstable distal radius fractures were collected.The included trials were screened out strictly based on the criterion of inclusion and exclusion...

BACKGROUND: According to the future demographic trends the incidence of proximal humeral fractures and subsequent posttraumatic malunions and nonunions of the proximal humerus are expected to substantially increase. OBJECTIVES: This article reviews the indications, techniques and outcomes of corrective osteotomy for the treatment of posttraumatic nounions and malunions of the proximal humerus. METHODS: A selective literature search was performed and personal surgical experiences are reported...

Symptomatic nonunion of the lateral epicondyle of the elbow is a rare injury. We present the case of a 36-year-old woman who complained of elbow pain and instability several months after a conservatively treated lateral epicondyle fracture that evolved into nonunion. In order to reestablish elbow stability, the patient underwent removal of the nonunited epicondylar fragment and ligament repair, with excellent clinical outcome.

OBJECTIVE: To retrospectively analyze the surgical effect of anterior approach bone graft and internal fixation methods for treating old thoracolumbar fracture without neurological symptom, so as to provide references for surgical treatment of such kind of fracture. METHODS: From April 2004 to April 2009, 22 cases of old thoracolumbar fractures were treated, including 15 males and 7 females with an average age of 38 years ranging from 21 to 56 years. The time from injured to operation was from 4 months to 2 years (average 8 months)...

OBJECTIVE: To evaluate the result of treating nonunion of lower segment of humerus with combination of rib flaps of cross chest and double plates. METHODS: From February 2000 to May 2006, 21 cases of nounion of lower segment of humerus were treated. There were 13 males and 8 females with an average age of 36.5 years (range, 17-56 years). According to AO classification, there were 5 cases of type A1.3, 7 cases of type B1.3, 6 cases of type B2.3, 2 cases of type B3...

OBJECTIVE: To explore the clinical effects of delayed open reduction and locking compressing plate (LCP) plus bone-grafting in medullary cavity for the distal comminuted fractures of tibia. METHODS: Twenty-nine patients with the distal comminuted fractures of tibia were treated between March 2006 and September 2008, including 19 males and 10 females, ranging in age from 27 to 58 years with an average of 42.5 years. From wounded to hospital, the time was from 2 to 4 hours...

SUBJECT: This study evaluates the results of external and internal fixation techniques for arthrodesis of the ankle. METHODS: Perioperative and subjective, clinical, and radiological long-term results (average follow-up: 9 years) in 55 patients following arthrodesis of the ankle due to posttraumatic arthritis were compared in two groups with different fixation techniques--compression arthrodesis with external fixator (AO) or internal screw fixation. RESULTS: Patients with external fixation revealed a significantly higher deep infection rate, which was treated conservatively, while the rates of nounion, revision surgery due to infection, and total revision surgery did not show any difference in the two groups...

Significant progress has been made in the understanding of carpal kinematics and posttraumatic disorders of the wrist. The importance of stabilization of the scaphoid is well known. More and more ligament injuries of the proximal carpal row have been diagnosed in cases of severe arthrotic changes. Long-standing scaphoid nounion or scapholunate ligament injuries can lead to progressive carpal collapse due to a break of the continuity of the proximal carpal row. SLAC-wrist (scapholunate advanced collapse) and SNAC-wrist (scaphoid nonunion advanced collapse) after missed fusion of scaphoid fractures should be differentiated...

After surgery or traumatic injury, bone defects may heal slowly or they may completely fail to heal. In most cases, these delayed unions and nounions results from lack of proper immobilization. Motion at the site of an injury interferes with proper organization of the hematoma or causes the fragments to separate or become displaced.