There are disadvantages in Elastic Stable Intramedullary Nailing (ESIN) of forearm shaft fractures, such as soft tissue irritation and the need of implant removal. A new mini-invasive technique of intramedullary nailing with biodegradable material (BESIN) has been developed. The nails are tapped into the medullary cavity and left in place. The aim of this study was to compare BESIN technique with ESIN. This is a prospective, randomized, controlled clinical trial including the patients (aged 5-15 years) who required operative treatment for forearm shaft fractures in two pediatric trauma centers, in Finland. The patients were randomized to be treated by BESIN or ESIN. Thirteen patients were required for each group, according to power analysis but altogether 35 were enrolled for potential drop-outs. Biodegradable polylactide-co-glycolide (PLGA) nails (ActivaNail ®, Bioretec ltd, Finland) were used in 19 and titanium nails (TEN ®, Synthes ltd, USA) in 16 patients. Pain and the range of motion (ROM) of forearm, elbow and wrist were primary outcomes. Radiographs and potential complications were analyzed of all and magnetic resonance imagines (MRI) of a randomly selected subgroup in BESIN group (N=13).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
35
The investigational implant is an ultra-high-strength biodegradable intramedullary (IM) nail of poly(lactide-co-glycolide) (PLGA)/tricalcium-phosphate (β-TCP) which was manufactured by Bioretec Ltd. (Hartmaninkatu 2, Tampere, Finland)
Elastic stable intramedullary nail to stabilize unstable forearm shaft fractures in children
Oulu University Hospital
Oulu, Finland
The range of motion (ROM) of forearm measured by goniometer
The ROMs of forearm
Time frame: 2 years
The range of motion (ROM) of elbow and wrist measured by goniometer
The ROMs of elbow and wrist
Time frame: 2 years
Pain measured with visual analogue scale
general pain or pain at the fracture site in mm +/- SD , scale is from 0-100mm in visual scale where child can point the proper level of pain. 0 equals "no pain", 100 equals "the highest imaginable pain"
Time frame: 2 years
Radiographic bone union
plain radiographs in anterior posterior (AP) and lateral projections
Time frame: 2 years
Radiographic bone deformity
plain radiographs in anterior posterior and lateral projections
Time frame: 2 years
Magnetic resonance imagining, bone healing
MRIs in intervention group
Time frame: 2 years
Implant degeneration in Magnetic resonance imagining
degrading of the implant
Time frame: 2 years
Magnetic resonance imagining, soft tissue reaction
soft tissue reaction
Time frame: 2 years
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