OrthoPureXT Multiligament PMCF Study

Inclusion Criteria: * Male and female patients aged 18 years old or above. * Adults suffering with multiple knee ligament injuries. * Ability to communicate meaningfully with investigative staff, competence to give written informed consent; and willingness and ability to comply with entire study procedures including rehabilitation protocol. Exclusion Criteria: * Those unable to give consent. * Those considered as conflicting variables by the investigator. This may include, but is not limited to: * Open trauma * Neurovascular emergencies * Compartment syndrome * Life threatening injury * Those considered as physical barriers by the investigator, preventing physical or ethical collection of study data. This may include, but is not limited to: * Associated fractures that require external fixators * Local severe concomitant injuries * Injuries to other parts of the body associated with a high level of daily activity/intervention for the patient * Those considered as a poor candidate for surgery by the investigator. * If female and of child-bearing potential must not have a positive pregnancy test at Visit 1 nor have a stated intention to become pregnant in the next 12 months. * Those patients contraindicated for in the IFU, i.e.: * Showing signs of infection within 24 hours prior to surgery * Patients with known allergy, hypersensitivity, or religious objection to, implanted porcine material * Patients unable or unwilling to follow the post-operative care and rehabilitation programme