The Fitbone™ intramedullary limb-lengthening system was developed in partnership with Prof. Rainer Baumgart, a world-famous specialist for intramedullary lengthening with more than 2000 Fitbone™ limb lengthening's.
Since its launch in 1997, this innovative treatment concept has grown into a global success story. The Fitbone TAA intramedullary lengthening system is intended for limb lengthening of the femur and tibia. With the combination of preoperative planning, specialist Fitbone™ instrumentation and the Fitbone™ lengthening nail, it is possible to make axial and torsional corrections as part of limb lengthening.
The Fitbone intramedullary limb-lengthening system has been incorporated into the OrthoNext™ digital platform. The OrthoNext software features the reverse planning method module that simulates the target position, osteotomy level and blocking screw placement — enabling a more accurate preoperative assessment, optimized inventory sent to the OR and, above all, optimized limb correction.
Benefits to Surgeon
Instruments designed not only for lengthening but for optimal limb alignment
Protection of soft-tissues with minimally-invasive instrumentation
Safe alignment assessment and blocking screw placement with dummy (trial) nail
Reliable power direct to the nail
High distraction force independent of nail size
No soft-tissue limitations
Power transferred to the nail with small portable Control Set
No magnets within the control set
Bone is reamed to exactly fit the implant (step reamer)
No over-reaming necessary, therefore it is a bone-conserving procedure
Manufacturer information is available on the product labels and relevant IFUs.
Fitbone TAA is an intramedullary lengthening system for limb lengthening of the femur and tibia.
Fitbone TAA intramedullary lengthening system is indicated for adult and pediatric (greater than 12 through 21 years of age) patients.
Patients with any open wounds or areas with poor soft tissue coverage near the operative site
Patients with an anatomic deformity that prevents the device from fitting
Patients with poor bone quality that would prevent adequate fixation of the device
Patients with compromised capacity for healing
Patients with metal allergies and sensitivities
Patients in which the implant would cross open epiphyseal growth plates
Blood supply limitations, peripheral vascular disease or evidence of inadequate vascularity
Insufficient intramedullary space that would lead to cortical weakening or vascular damage during an implantation
Patients with a body weight of over 100 kg for TAA11/13
Patients with a body weight of over 50 kg for for TAA09
Differences in leg length of less than 20 mm
No free access for proximal insertion of the intramedullary lengthening nail (e.g., coxa valga)
No reliable exclusion of bone infection
Expected non-compliance, mentally ill patient or patient with clouded consciousness
In addition to the general risks involved in surgical intervention, the following side effects that might occur despite correctly performed treatment need to be mentioned:
Slight tingling sensation up to strong pain in the affected limb, especially during and after distraction
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