Safety and Performance of MICRORAPTOR™ Suture Anchors in Shoulder and Hip

Repair failure at 12 months was determined by physician diagnosis of recurrent shoulder dislocation, subluxation, and patient symptoms (e.g., pain). In the event of suspected repair failure, MRI or CT scan must confirm the root cause (i.e., intraarticular labrum failure or fixation repair failure) and assess glenoid bone loss. The repair failure rate was defined as the number of participants with confirmed repair failure divided by the total number of participants in the study device group at the 12-month follow-up.

Pain was assessed using a Visual Analogue Scale (VAS) where participants indicated their pain level by marking a point that represented their perceived pain intensity. Scores ranged from 0 to 100, with 0 representing no pain and 100 representing the worst imaginable pain (i.e., a worse outcome). A decrease in VAS Pain score indicated a reduction in pain (i.e., a better outcome) and an increase indicated worsening in pain (i.e., a worse outcome). The mean change in pain score was recorded on the VAS from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

Repair failure at 24 months was collected only for participants that received the MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor. Repair failure was determined by physician diagnosis of recurrent shoulder dislocation, subluxation, and patient symptoms (e.g., pain). In the event of suspected repair failure, MRI or CT scan must confirm the root cause (i.e., intraarticular labrum failure or fixation repair failure) and assess glenoid bone loss. The repair failure rate was defined as the number of participants with confirmed repair failure divided by the total number of participants in the study device group at the 24-month follow-up.

Hip Magnetic Resonance Imagining (MRI) was performed on participants that received the MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor to determine anchor absorption/replacement by bone at baseline, 6 months, and 24 months based on acetabular labral condition classification. The number of participants acetabular labral condition was classified as one of the following:

• Normal Intact Labrum
• Labral Tear / Degeneration

Hip Magnetic Resonance Imagining (MRI) was performed on participants that received the MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor to determine anchor absorption/replacement by bone at baseline, 6 months, and 24 months based on joint effusion classification. The number of participants joint effusion was classified as one of the following:

• None
• Mild
• Moderate
• Severe

Hip Magnetic Resonance Imagining (MRI) was performed on participants that received the MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor to determine anchor absorption/replacement by bone at baseline, 6 months, and 24 months based on the presence of bone marrow edema. The number of participants with bone marrow edema were categorized as 'Absent' or 'Present'.

The Rowe shoulder score for shoulder instability evaluated using a 3-item instrument completed by the investigator or qualified, delegated study staff. Its questions addressed the categories of shoulder stability (0 to 50 points), motion (0 to 20 points), and function (0 to 30 points). Scores ranged from 0 to 100 with a score of 90-100 points indicating an excellent evaluation, 75-89 points indicating a good evaluation, 51-74 points indicating a fair evaluation, and =< 50 points indicating a poor evaluation.

An increase in Rowe score indicated reduced shoulder instability (i.e., a better outcome) and a decrease indicated worsening instability (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

Western Ontario Shoulder Instability Index (WOSI) was a participant completed instrument. Its categories included "physical symptoms", "sports, recreation, work", "pain", "lifestyle", and "emotion", with questions within each category scored from 0 to 100 using a visual analog scale. Scores were combined to produce an overall score that ranged from 0 to 2100 with a score of 0 indicating better shoulder function and 2100 indicating worse shoulder function.

A decrease in WOSI score indicated improving shoulder function (i.e., a better outcome) and an increase indicated worsening shoulder function (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

Constant-Murley Shoulder (CMS) scale assesses four aspects related to shoulder pathology: pain, activities of daily living (ADL), range of motion (ROM), and strength. The total score ranged from 0 to 100, with a higher score indicating better shoulder function.

An increase in CMS score indicated improving shoulder function (i.e., a better outcome) and a decrease indicated worsening function (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

The Hip Outcome Score Activities of Daily Living (HOS-ADL) subscale consisted of 17 items that addressed specific activities related to hip function. Scores ranged from 0 to 100 with 0 representing the least function and 100 representing the most function.

An increase in HOS-ADL score indicated improved hip function (i.e., a better outcome) and a decrease indicated worsening function (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

Modified Harris Hip Score (mHHS) is a joint specific score covering domains of pain, function, functional activities, absence of deformity, and hip range of motion. Scores ranged from 0 to 100, with 0 representing worse disability and 100 representing less disability.

An increase in mHHS indicated improved hip joint function (i.e., a better outcome) and a decrease indicated worsening function (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.