***TASK***
the task is to simplify the input abstract of a biomedical literature

***INPUT***
the input is the abstract of a biomedical literature

***OUTPUT***
the output is the simplified abstract for the input abstract of a biomedical literature

***DOCUMENTATION***

***EXAMPLES***

Input: Five small trials comparing dynamic compression plates with locked intramedullary nailing were included in this review. These involved a total of 260 participants undergoing surgery for either acute fractures or after early failure of conservative treatment. All five trials had methodological flaws, such as the lack of assessor blinding, that could have influenced their findings. There was no significant difference in fracture union between plating and nailing (five trials, RR 1.05; 95% CI 0.97 to 1.13). There was a statistically significant increase in shoulder impingement following nailing when compared with plating (five trials, RR 0.12; 95% CI 0.04 to 0.38). Intramedullary nails were removed significantly more frequently than plates (three trials, RR 0.17; 95% CI 0.04 to 0.76). There was no statistically significant difference between plating and nailing in operating time, blood loss during surgery, iatrogenic radial nerve injury, return to pre-injury occupation by six months or American Shoulder and Elbow Surgeons (ASES) scores. Two further small trials are awaiting classification. The available evidence shows that intramedullary nailing is associated with an increased risk of shoulder impingement, with a related increase in restriction of shoulder movement and need for removal of metalwork. There was insufficient evidence to determine if there were any other important differences, including in functional outcome, between dynamic compression plating and locked intramedullary nailing for humeral shaft fractures.
Output:

Five poor quality trials were included in this review. These involved a total of 260 participants who were randomly assigned to having their humerus fractures fixed with either a plate or a nail. Both nailing and plating had similar fracture union rates. Compared with plating, nailing was associated with an increased risk of shoulder impingement involving shoulder pain and restrictions in shoulder range of movement. Usually because of impingement, nails had to be removed more frequently than plates. The limited available evidence did not show important differences between the two surgical methods in the other outcomes reported by one or more trials. These outcomes included nerve injury, infection, healing time, operating time, blood loss and return to pre-injury occupation.