Traumatic medial clavicle fracture induced by chin bar of a full-face helmet following a downhill mountainbike accident

2020 ◽  
Vol 34 (01) ◽  
pp. 48-50
Author(s):  
Thilo Schmitt ◽  
Florian Pfalzer ◽  
Jochen Huth ◽  
Frieder Mauch
Keyword(s):  
Surgical Intervention ◽  
Clavicle Fracture ◽  
Mountain Biking ◽  
X Rays ◽  
Protection Device ◽  
Mountain Bike ◽  
Combined Use ◽  
Full Face ◽  
Medial Clavicle ◽  
Positive Results

AbstractDownhill mountain biking is a rapidly growing sport. In our case we want to present an isolated medial clavicular fracture following a mountain bike accident with a critical review on the used protection device. A 35 year old healthy patient presented to our hospital after bike accident during downhill mountain biking in Austria with pain over his right medial clavicle. The imaging showed a multifragmentary medial clavicle fracture with an intact SC-joint. Surgical intervention was recommended. Postoperative x-rays showed an anatomic reposition and correct plate positioning. The implant was removed after 18 months without any complications. A full-face helmet with a chin bar is used to achieve better protection of the maxilla, mandible and the teeth. In a hyperflexion situation of the cervical spine, a direct contact of the chin bar with the sternum, sc-joint and the medial clavicle can occur. This impact sets the mentioned structures on a high risk of dislocation and fracture as seen in our case. This risk can be significantly reduced by the combined use of a full face helmet and a neck brace. If the injury is properly identified, positive results can be achieved by surgery.

scholarly journals The National Interscholastic Cycling Association (NICA) Mountain Biking Injury Surveillance System (ISS): Analysis of 66,588 Student Athlete-Years of Injury Data

2021 ◽  
Vol 18 (11) ◽  
pp. 5856
Author(s):  
Meredith Ehn ◽  
Masaru Teramoto ◽  
Daniel M. Cushman ◽  
Kristen Saad ◽  
Stuart Willick
Keyword(s):  
Surveillance System ◽  
Student Athletes ◽  
The United States ◽  
Injury Surveillance ◽  
Mountain Biking ◽  
Student Athlete ◽  
Mountain Bike ◽  
Injury Surveillance System ◽  
Injury Characteristics ◽  
Mountain Bike Racing

Interscholastic youth cross-country mountain bike racing in the United States has grown significantly over the past decade, yet little is known about the risk profile in this age group. Aiming to protect participants, we implemented a prospective, longitudinal injury surveillance system for the purpose of better understanding youth mountain biking injuries and implementing safety measures. Data were collected during competition years 2018–2020, totaling 66,588 student athlete-years. Designated reporters from each team received weekly emails with exposure and incident report forms. Variables analyzed included demographic, rider-related, trail-related, and other data. Injury characteristics during the COVID-19 pandemic in 2020 were compared to the years 2018 and 2019. More student athletes participated in the 2020 season (25,261) than in prior seasons (18,575 in 2018 and 22,752 in 2019). During competition year 2020, overall injury proportion was lower (1.7% versus 3.0% in 2018 and 2.7% in 2019). Variables associated with injury, body part injured, type of injury, time-loss, and disposition following injury were similar between all years. Despite the pandemic and resultant changes to competition, student athletes continued to ride their bikes and become injured, but the proportion of injuries differed. This report details injury characteristics in youth mountain bike racing, including a comparison of before and during the pandemic.

scholarly journals Results of minimal invasive coracoclavicular fixation by double button lift-up system in Neer type II distal clavicle fractures

2017 ◽  
Vol 25 (1) ◽  
pp. 230949901668472 ◽  
Author(s):  
Süleyman Semih Dedeoğlu ◽  
Yunus İmren ◽  
Haluk Çabuk ◽  
Murat Çakar ◽  
Samet Murat Arslan ◽  
...  
Keyword(s):  
Functional Outcomes ◽  
Clavicle Fracture ◽  
Rehabilitation Program ◽  
Minimal Invasive ◽  
X Rays ◽  
Distal Clavicle ◽  
Distal Clavicle Fracture ◽  
Shoulder Scores ◽  
Coracoclavicular Fixation

Aim: We aimed to evaluate clinical and functional outcomes of indirect fracture reduction performed by coracoclavicular fixation with minimal invasive double button lift-up system in Neer type IIa unstable fractures of distal clavicle. Material and methods: 22 patients with Neer type 2 distal clavicle fracture were enrolled in that prospective study. All patients underwent indirect reduction and osteosynthesis performed by coracoclavicular fixation with minimal invasive double button lift-up system. Postoperative follow-up was carried out clinically and radiologically with plain X-rays and utilization of Constant and American Shoulder and Elbow Surgeons Standardized Shoulder Assessment (ASES) shoulder scores. Mean follow-up time was 15 months. A standard sling was applied for 2 weeks, postoperatively. Rehabilitation program was started on postoperative day 1. Results: Mean age was 39 (range: 21–60), 18 of the patients were male. Right dominant extremity was affected in 14 patients. Mean duration of the surgical intervention was 40 min (range: 30–55 min). Mean union time was found to be 14 weeks (range: 7–21 weeks). Mean postoperative ASES and Constant scores were 79.9 (66.9–88.3) and 82.2 (71–100), respectively. The duration of return to normal daily activities were found to be 4.5 months. Any loss of reduction, AC joint arthrosis, and clavicular shortening were not detected in X-rays. Conclusion: This study has demonstrated that indirect osteosynthesis performed by coracoclavicular fixation with double button lift-up system in the treatment of unstable Neer type IIa fractures of the distal clavicle had successful clinical, radiological, and functional outcomes.

The combined use of He back-scattering and He-induced X-rays in the study of anodically grown oxide films on GaAs

1973 ◽  
Vol 19 (1) ◽  
pp. 81-89 ◽  
Author(s):  
L.C. Feldman ◽  
J.M. Poate ◽  
F. Ermanis ◽  
B. Schwartz
Keyword(s):  
Oxide Films ◽  
X Rays ◽  
Combined Use ◽  
Back Scattering

scholarly journals  Early surgical intervention is indicated for recurrent spontaneous pneumothorax in children and adolescents

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Cody Tragesser ◽  
Brian W. Gray, MD ◽  
Matthew P. Landman, MD, MPH
Keyword(s):  
Recurrence Rate ◽  
Chest Tube ◽  
Spontaneous Pneumothorax ◽  
Surgical Intervention ◽  
Univariate Analysis ◽  
X Rays ◽  
Radiographic Findings ◽  
Radiographic Measurements ◽  
Ipsilateral Recurrence ◽  
History Of

Background: Primary spontaneous pneumothorax (PSP) occurs most often in adolescent patients. There is consensus that surgical intervention plays an important role in preventing recurrence, however, the optimum timing of surgery is debated. We hypothesize that clinical and radiographic factors are associated with eventual need for surgery.  Experimental Design: We searched the medical record for PSP patients between ages 9 and 21 treated from 1/1/08 to 12/31/17 and collected data on chest tube management, radiographic measurements, operative management, and recurrence. We performed univariate analysis on relationships between admission events and eventual surgery or other management strategies.  Results: We identified 68 PSP admissions from 31 patients. Considering only first-time admissions, there was no association between eventual surgery and clinical factors and radiographic findings.  The single factor associated with eventual surgery was history of pneumothorax in any lung (p=0.015). For patients with prior pneumothorax who underwent surgery, operation the day after admission would have reduced hospital stay by an average of 1.5 days (min=0, max=9) and an average of 2.2 days (min=0, max=10) if performed on the day of admission, with a mean 1.85 fewer chest x-rays (min=0, max=7). Considering only first admissions, ipsilateral recurrence rate was 16.7% after surgery, 46.7% after chest tube alone, and 100% after observation alone.  Conclusion: This analysis suggests that though eventual surgery is difficult to predict, ipsilateral recurrence rate is reduced following surgery. Furthermore, earlier operation in recurrent patients could reduce resource utilization. Thus, expedited surgical treatment may merit consideration in patients with a history of pneumothorax. 

scholarly journals Single-center Experience in the Treatment of Extremely Medial Clavicle Fractures with Vertical Fixation of Double-plate

2019 ◽  
Author(s):  
He Liu ◽  
Ziyan Zhang ◽  
Baoming Yuan ◽  
Guangkai Ren ◽  
Junlong Yu ◽  
...  
Keyword(s):  
Fracture Healing ◽  
Plate Fixation ◽  
Clavicle Fracture ◽  
Shoulder Function ◽  
Single Center Experience ◽  
Clavicle Fractures ◽  
Postoperative Fracture ◽  
Medial Clavicle ◽  
First Time ◽  
Contralateral Shoulder

Abstract Background: Patients suffering from medial clavicle fractures combined with displacement need surgical intervention. This research reports the effect of double-plate fixation as an innovative procedure in the treatment of extremely medial clavicle fractures.Methods: Nine patients complaint of extremely medial clavicle fracture were enrolled in this research from Mar 2017 to March 2018. Patients were treated with an open reduction and internal fixation using the double-plate technique. Postoperative X-ray was taken regularly to observe the fracture healing at each visit, and the related complications were also recorded. The rating score systems of Constant Murley score of treated shoulder and contralateral shoulder, Rowe score as well as American Shoulder and Elbow Surgeons (ASES) were questionnaire to evaluate postoperative shoulder joint function.Results: All patients achieved postoperative fracture healing with no complications. Only one patient complained of slight restriction, two patients complained of pain during overhead work, and another patient occurred plate breakage. Meanwhile, the Constant Murley scores of treated and contralateral shoulder were 94.1 and 98.5 points, respectively, indicating the similar shoulder function. Furthermore, the Rowe and ASES scores of the involved shoulder were 96.7 and 96.3 points at average, respectively.Conclusions: It is the first time to introduce the surgical technique of vertical double-plate fixation for stable fixation of extremely medial clavicle fractures, which could provide the surgeons an alternative method for this type of fracture.

The First Intermetatarsal Angle in Hallux Valgus: An Analysis of Measurement Reliability and the Error Involved

2002 ◽  
Vol 23 (8) ◽  
pp. 717-721 ◽  
Author(s):  
Finbarr Condon ◽  
Michael Kaliszer ◽  
Dyanane Conhyea ◽  
Turlough O' Donnell ◽  
Anthony Shaju ◽  
...  
Keyword(s):  
Confidence Interval ◽  
Hallux Valgus ◽  
Surgical Intervention ◽  
Standard Technique ◽  
X Rays ◽  
Measurement Reliability ◽  
Intermetatarsal Angle ◽  
Margin Of Error ◽  
Improve Reliability

In view of the importance placed on the first intermetatarsal angle in the assessment of surgical intervention in hallux valgus, we assessed the reliability with which one measures this angle. The study involved 10 observers of varying experience measuring the angle using a standard technique on 10 weightbearing AP X-rays of the foot on three separate occasions. The margin of error in measuring the angle was ±3.60° with a 95% confidence interval. Increasing and averaging the number of readings per observer or the readings of a number of observers, reduces the error. Experience doesn't improve reliability. In conclusion, improvement in the reliability of the measurements can be achieved by careful technique, performing the measurements at least twice, and averaging them.

Medial Clavicle Fracture Fixation Including the Sternum

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Matthew J Schultz ◽  
Eric A Barcak
Keyword(s):  
Fracture Fixation ◽  
Clavicle Fracture ◽  
Medial Clavicle

scholarly journals Postsurgical residual lung complications following left upper trisegmentectomy

2019 ◽  
Author(s):  
Yutaro Koike ◽  
Aritoshi Hattori ◽  
Takeshi Matsunaga ◽  
Kazuya Takamochi ◽  
Shiaki Oh ◽  
...  
Keyword(s):  
Surgical Intervention ◽  
Type A ◽  
X Rays ◽  
Limited Information ◽  
Type B ◽  
Type D ◽  
Thoracic Computed Tomography ◽  
Isolated Segment ◽  
Type C ◽  
Lung Torsion

AbstractOBJECTIVESSegmentectomy has become an increasingly popular surgical procedure for small-sized lung lesions. Left upper trisegmentectomy (LUTS) is one of the most common segmentectomies performed because of its relative ease and simplicity; however, limited information is currently available on the specific postoperative complications associated with this procedure.METHODSAmong 2060 surgically resected cases in our institute between 2009 and 2016, 129 (6.2%) underwent LUTS. Postoperative chest X-rays and/or thoracic computed tomography (CT) scans were retrospectively assessed for all cases to assess postsurgical residual lung complications following LUTS. We categorized cases into 4 groups: type A (atelectasis of the lingular segment), type B (lung torsion of the lingular segment), type C (necrosis of the ‘isolated segment’) and type D (haematoma along stapling lines).RESULTSPostsurgical lung complications following LUTS were observed in 17 (13.1%) patients (type A: n = 7, type B: n = 1, type C: n = 4 and type D: n = 5). Three patients (2.3%) required surgical intervention because of type B (n = 1) and type C (n = 2), namely, decreased permeability and remaining ground glass opacities in the residual lung, showing an exacerbated systemic inflammatory response. In contrast, type A and D cases were successfully observed by chest CT without any surgical intervention, and patients recovered within a few months of surgery.CONCLUSIONSWe identified several postoperative residual lung complications following LUTS. Lung torsion or necrosis of the residual segment may require intensive care, including reoperation. Potentially serious complications always need to be ruled out after LUTS when radiological consolidation is detected postoperatively.

scholarly journals Mountain bike tourism economic impacts: A critical analysis of academic and practitioner studies

2020 ◽  
pp. 135481662090195 ◽  
Author(s):  
Richard J Buning ◽  
Matthew Lamont
Keyword(s):  
Critical Analysis ◽  
Economic Impacts ◽  
Financial Assistance ◽  
Future Research ◽  
Mountain Biking ◽  
Recreational Activity ◽  
Mountain Bike ◽  
Tourism Impacts ◽  
Body Of Knowledge ◽  
Variable Measurement

Mountain biking as a sport and recreational activity has grown rapidly over the previous two decades. Consequently, there has been growth recently in efforts aimed at stimulating mountain bike tourism through the development and marketing of mountain bike trails and parks. Various community advocates, academics, and industry practitioners have sought to quantify the economic impacts of mountain bike tourism to garner public and other financial assistance to aid the development of mountain bike tourism. This research critically reviewed 33 academic and practitioner studies reporting on mountain bike tourism economic impacts. Analysis revealed widespread inconsistency in instrumentation and variable measurement contributing to a fragmented body of knowledge pertaining to economic impacts of mountain bike tourism. Recommendations for improved rigor and consistency in future research measuring mountain bike tourism impacts are provided.

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