Clinical Trial

Minimal Invasive Scoliosis or Open Surgery

Study acronym: MISCOS
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Summary
Surgical treatment for idiopathic scoliosis usually involves open surgery from the back (posterior approach). This method corrects the curve and stabilizes the spine using screws and rods, followed by a fusion of the treated segments. The goal is to achieve the best possible alignment of the spine. This type of surgery can be demanding for the body and often requires a longer hospital stay because of tissue damage and pain after the procedure. Traditionally, patients stayed in the hospital for up to a week or more. In recent years, recovery programs such as ERAS (Enhanced Recovery After Surgery) have been introduced. These programs include better pain control, faster mobilization, and improved preparation before surgery. Thanks to these improvements, many patients can now go home one to two days after surgery instead of several days. There has also been a development of minimally invasive surgery (MIS) techniques in spine surgery. These techniques aim to reduce tissue damage and blood loss compared to traditional open surgery. Smaller incisions can lead to less scarring, less pain, and potentially faster recovery. Because scoliosis surgery is complex, it is important to study whether MIS offers the same safety and benefits as traditional surgery. Minimally invasive surgery makes correct screw placement in the curved spine more challenging, as the usual anatomical landmarks are not fully exposed. To ensure accuracy, MIS often uses advanced technologies such as intraoperative 3D imaging or robotic-assisted surgery (RAS). The purpose of this project is to evaluate whether MIS is as safe and effective as traditional open surgery. The study will compare both methods regarding the need for additional surgery, complications, infections, pain, and bone fusion after surgery. It will also examine hospital stay, degree of curve correction, accuracy of screw placement, changes in nerve function during surgery, blood loss, operation time, and patient-reported outcomes. Most existing studies on MIS in scoliosis are based on older or small patient series, and randomized controlled trials are lacking. This research will provide scientific evidence to guide future treatment choices. The aim is to determine whether MIS can deliver the same correction and safety as open surgery while reducing pain, blood loss, and recovery time. If proven effective, these techniques could improve recovery and quality of life for many scoliosis patients.
Trial Details
NCT Number NCT07203586
Lead Sponsor Uppsala University
Collaborators: University of Oslo, Karolinska University Hopsital, University Hospital, Umeå, Örebro University, Sweden, Skane University Hospital, Sahlgrenska University Hospital, Uppsala University Hospital, Linkoeping University
Conditions Idiopathic Adolescent Scoliosis, Idiopathic Juvenile Scoliosis
Enrollment 180 participants
Start Date 2025-10-15
Primary Completion 2028-12-31 (estimated)
Study Completion 2030-12-31 (estimated)
Updated on ClinicalTrials.gov 2025-10-02