Introducere: Deşi leziunile la nivelul umărului sunt frecvente, cele ale claviculei mediane sunt prea puţin explorate. O clasificare aplicată este mai puţin utilizată ca management standard. Metode: O analiză retrospectivă a leziunilor claviculare medii (MCI) pe parcursul unui stagiu de tratament de 5 ani într-un Centru de Traumatologie de nivel 1. Am analizat, printre altele, leziunile concomitente, strategiile de terapie şi clasificarea conform standardelor AO. Rezultate: 19 (2,5%) din 759 de leziuni claviculare au fost mediale (11 fracturi de tip A, 6 B şi 2 C), dintre care 27,8% au fost deplasate şi drept urmare tratate chirurgical. Osteosinteza cu placă fixă a fost utilizată în fracturi instabile şi reconstrucţia ligamentelor în articulaţia sternoclaviculară (SCJ) în cazul întreruperii acestora. 84,2% dintre pacienţi au prezentat leziuni concomitente relevante. Numeroase fracturi de mediane au fost codificate greşit ca fracturi mediale, ceea ce a limitat populaţia de studiu Concluzii: MCI a rezultat din mecanisme de vătămare cu impact puternic, adesea cu dislocare semnificativă şi leziuni concomitente. În ceea ce priveşte complexitatea leziunilor mediale, tratamentul ar trebui efectuat în spitale specializate. Fracturile instabile şi leziunile ligamentelor SCJ trebuie luate în considerare pentru tratamentul chirurgical. Fracturile mediane ar trebui să se

IntroductionAlthough shoulder girdle injuries are frequent, those of the medial part are widely unexplored. Our aim is to improve the knowledge of this rare injury and its management in Germany by big data analysis.MethodsThe data are based on ICD-10 codes of all German hospitals as provided by the German Federal Statistical Office. Based on the ICD-10 codes S42.01 (medial clavicle fracture, MCF) and S43.2 (sternoclavicular joint dislocation, SCJD), anonymized patient data from 2012 to 2014 were evaluated retrospectively for epidemiologic issues. We analyzed especially the concomitant injuries and therapy strategies.ResultsA total of 114,003 cases with a clavicle involving shoulder girdle injury were identified with 12.5% of medial clavicle injuries (MCI). These were accompanied by concomitant injuries, most of which were thoracic and craniocerebral injuries as well as injuries at the shoulder/upper arm. A significant difference between MCF and SCJD concerning concomitant injuries only appears for head injuries (p = 0.003). If MCI is the main diagnosis, soft tissue injuries typically occur as secondary diagnoses. The MCI are significantly more often associated with concomitant injuries (p < 0.001) for almost each anatomic region compared with lateral clavicle injuries (LCI). The main differences were found for thoracic and upper extremity injuries. Different treatment strategies were used, most frequently plate osteosynthesis in more than 50% of MCF cases. Surgery on SCJD was performed with K-wires, tension flange or absorbable materials, fewer by plate osteosynthesis.ConclusionsWe proved that MCI are rare injuries, which might be why they are treated by inhomogeneous treatment strategies. No standard procedure has yet been established. MCI can occur in cases of severely injured patients, often associated with severe thoracic or other concomitant injuries. Therefore, MCI appear to be more complex than LCI. Further studies are required regarding the development of standard treatment strategy and representative clinical studies.

Purpose Although shoulder-girdle injuries occur frequently, injuries of the medial part remain widely unexplored. This study overviews these rare injuries with a focus on incidence, age, and sex distribution in Germany. Methods The data are based on diagnoses according to ICD-10 in all German hospitals provided by the German Federal Statistical Office. ICD-10 codes S42.01 (medial clavicle fracture, MCF) and S43.2 (sternoclavicular joint dislocation, SCJD) were evaluated in detail between 2012 and 2014. Results We identified 14,264 cases with medial clavicle injuries (MCIs). MCFs occurred more often (11.6% of all claviclerelated shoulder-girdle injuries vs. 0.6% for SCJD). Mean ages of MCI were significantly different between males (43.7 years) and females (57.1 years) (p < 0.01). Age demonstrated a bimodal distribution with peaks at 20 and 50 years, which were predominantly associated with males. Females showed more injuries at age beyond 70 years. This applies to both SCJD and MCF. The incidence rate of these shoulder-girdle injuries was 47.0 per 100,000 person-years, for MCIs overall 5.9 (4.1 for men, 1.8 for women). This indicates disparity with a significant predominance of male patients over females as for all shoulder-girdle injuries (p < 0.01). Among children (< 16 years old), the incidence rate showed no significant difference in gender ratio. Conclusion MCIs appear more frequently than estimated so far and are distinguished from other clavicle fractures in that they occur more at higher age and peaking around 50 years. Further work on possible prevention strategies should focus on the most frequently affected groups of men around 20 and 50 years old.

RezumatDate generale: Ligamentul costoclavicular (CLL) asigură cea mai strânsă stabilitate în cadrul articulaţiei sternoclaviculare (SCJ) urmată de mult citatele ligamentele sternoclaviculare (SCL). Distrugerea lor poate provoca instabilitate severă a SCJ. Opţiunile diferite de tratament, cum ar fi utilizarea plăcilor, a firelor sau a tendoanelor autologe, sunt asociate, în principal, cu rezultate funcţionale limitate. Ar putea o stabilizare a CCL asociată cu o fixare anatomică a SCL să asigure o reconstrucţie suficientă a SCJ? Metode: Un bărbat în vârstă de 58 de ani a prezentat o instabilitate anterioară severă şi dureroasă a SCJ după o cădere pe umăr cu 8 săptămâni în urmă. SCJ a fost reconstruit printr-o procedură deschisă, stabilizând CCL folosind 2 coarde strânse şi o sutură anatomică a SCL. Controlul a fost efectuat la 78 de săptămâni după operaţie. Rezultate: Reducerea SCJ a avut succes. Investigaţiile radiologice au demonstrat poziţia anatomică a SCJ. Durerea a scăzut în cursul primelor 6 săptămâni. Pacientul a prezentat o evoluţie fără complicaţii şi s-a întors la lucru în calitate de fermier la 6 luni după procedură. Concluzii: Stabilizarea inovatoare a CCL cu coarde strânse asociată suturii SCL poate permite reconstrucţia anatomică a SCJ, ţinând cont de rezultatele cosmetice şi funcţionale.

The feasibility of RV unloading by a selective decrease in RV afterload was proved in principle. By alternation of the pump speed, gradual reloading in sense of a myocardial training may be achieved. The results will be validated by future animal trials where the relationship between the level of support and pulmonary vascular pressure can be investigated in vivo. Further device design concerning foldable impeller leaflets will be carried out. At a final stage, the crimped version is supposed to reach a size below 1 cm to facilitate minimally invasive insertion.

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During our observation period, fewer infections were noted with merbromin treatment. A multicenter setting in a larger cohort should be performed to confirm these findings, although a (double-) blinded setting might be difficult to achieve.

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