The Satelliteā¢ Retrospective Analysis is an international, retrospective, multi-center, non-interventional post-marketing study designed to document and analyze existing data with the device in a "real-world" setting. The purpose of this study is to evaluate number of adverse device effects (ADEs), serious adverse device effects (SADEs) and serious adverse event (SAEs) and early clinical effectiveness for the Satelliteā¢ Nucleus Replacement in a standard clinical practice. Data collection will include information on health related quality of life (QoL), physical functioning and adverse event after nucleus replacement surgery. Radiographic measures will also be assessed to evaluate changes in disc height at the operated level and changes in segmental range of motion. All patients who were implanted with a Satelliteā¢ Nucleus Replacement Prosthesis in the participating sites are eligible for participation in the Satellite ā¢ Retrospective Analysis.
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Health-related Quality of Life Using the Visual Analogue Scale for Back Pain
Timeframe: Up to 12 months follow up visit
Health-related Quality of Life Using the Visual Analogue Scale for Leg Pain
Timeframe: Up to 12 months follow up visit
Physical Functioning Using the Oswestry Disability Index (ODI)
Timeframe: Up to 12 months follow up visit
Safety by Evaluating the Number of Serious Adverse Device Effects (SADEs), Adverse Device Effects (ADEs) and Serious Adverse Events (SAEs)
Timeframe: Patients were followed up according to the local practice, up to 1 year