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Safety and Effectiveness of a Novel Robotic Total Knee Arthroplasty (TKA) System

A Prospective, Multicenter, Single-arm, Interventional OUS Study to Demonstrate the Safety and Effectiveness of the mBos TKA System - NA

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2025/06/088092
Enrollment
102
Registered
2025-06-02
Start date
Unknown
Completion date
Unknown
Last updated
2025-06-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: M171- Unilateral primary osteoarthritisof knee

Interventions

Intervention1: mBos TKA System: The mB s TKA system is indicated for use in procedures where stereotactic surgery is suitable and where bony patient anatomy can be registered to a CT-based three-dimen

Sponsors

Monogram Orthopaedics Inc.
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1. Subjects who are at least 21 years of age, verified by a government-issued identification card/document. 2. Subjects who are skeletally mature, as evidenced radiographically by closed epiphyses. 3. Subjects identified needing unilateral TKA as the primary surgical management of osteoarthritis, and post-traumatic arthritis, defined radiographically by a Kellgren-Lawrence Grade of 3 or higher. 4. Subjects who are, in the opinion of the Investigators and approved study staff, able to understand and comply with this Investigation and its procedures, including being physically present for the required postoperative follow-up procedures. 5. Female subjects of childbearing potential must test negative for pregnancy at the time of screening. 6.All screened subjects, capable of fathering or bearing children, must agree to use adequate birth control measures (e.g., abstinence, oral contraceptives, intrauterine device, barrier method with spermicide, surgical sterilization) during the study and for 6 months after surgery 7.Menopausal females must have experienced their last period more than 12 months prior to screening to be classified as not of childbearing potential. 8. Subjects who are able to give voluntary, written informed consent to participate in the study and from whom consent has been obtained

Exclusion criteria

Exclusion criteria: Candidates will be excluded if they meet any of the following criteria: 1. Subjects who have undergone previous open knee surgery in the operative knee without the mBos robotic system. 2. Subjects whose anatomy is inappropriate for the available range of primary TKA implant 3. Subjects who have a coronal deformity greater than 15 or a sagittal recurvatum greater than 10 , assessed radiographically sizes. 4. Subjects who need a bilateral TKA, where the second TKA is needed within 120 days from the first TKA 5. . Subjects who have an active systemic infection or an active local infection in or near the operative knee joint or have a previous history of joint infection. 6. Subjects who have a pathological skeletal condition or skeletal immaturity which would significantly compromise the ability of the bone to withstand the stress required for preparation of the bones and proper implantation of the prostheses. 7. Subjects who have known femoral or tibial bone stock of poor quality or inadequate to provide stability for femoral or tibial fixation. 8. Subjects who have any type of metallic implant in the operative leg. 9. Subjects who have a known or suspected sensitivity to the metals or alloys or any other materials in the investigational device or implant components (i.e. cobalt, chromium, titanium, stainless steel, titanium nitride, aluminum, ultra-high molecular weight polyethylene, PVC plastic). 10. Subjects who have a systemic illness or a neuromuscular, neurosensory, or musculoskeletal deficiency that would render the patient unable to perform appropriate postoperative rehabilitation or create an unacceptable risk of prosthesis instability or fixation failure. 11. Subjects who have significant comorbidities or conditions associated with high risk for surgical or anesthetic survival. 12. Subject has any ongoing or history of underlying metabolic, hematologic, renal, hepatic, pulmonary, neurologic, endocrine, cardiac, infectious, or gastrointestinal condition, which in the opinion of the investigator places the subject at unacceptable risk 13. Subjects with uncontrolled diabetes 14. Subjects who have a previous history of knee joint infection. 15. Subjects who are pregnant or intend to become pregnant during the study. 16. Subjects who have previously experienced a stroke. 17. Subjects participating concurrently in another clinical trial or have participated in a clinical trial within the last 90 days (about 3 months), or intend to during the course of the study. 18. Subjects who have a medical or psychiatric condition which, in the opinion of the investigator, poses a risk of the patient being unable to complete the study or presents risks associated with study participation. 19. Subjects who are known to be drug or alcohol abusers or with psychological disorders that could affect follow-up care or treatment outcomes.

Design outcomes

Primary

MeasureTime frame
To demonstrate the safety of the mBos TKA SystemTimepoint: Composite safety endpoint that includes four soft-tissue complications identified in a literature search and reported below: 1) Neural Deficit (0.53%, Park et al.1 ) 2) Vascular Injury (0.17% Butt et al.,2 ) 3) Medial Collateral Ligament Injury (2.2%, Lee et al. 3 ) 4) Extensor Mechanism Disruption (2.5%, Boyd et al.4 ) The percentage of knees experiencing the composite safety event in this clinical trial will be compared to the sum 5.4% reported in literature.

Secondary

MeasureTime frame
To demonstrate the effectiveness of the mBos TKA SystemTimepoint: Postoperative coronal and axial knee implant component and limb Comparison of the 42 days ( 14 days) or at 6 weeks ( 2 weeks) postoperative axial component alignment to the planned alignment. Comparison of the 42 days ( 14 days) or at 6 weeks ( 2 weeks) postoperative coronal limb alignment to the planned limb alignment alignment relative to the planned alignments, respectively, using postoperative long-standing AP X-rays and CT scans at Week 6.

Countries

India

Contacts

Public ContactVinay Onkar

Reliance Life Sciences Pvt. Ltd. (RLS)

Sachin1.Kagane@relbio.com9987885679

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026