Post-traumatic Osteoarthritis
Conditions
Brief summary
With IRB approval and informed consent, patients (n=10) (18-50 years old) with post-traumatic knee OA and requiring a tibial plateau and meniscus arthroplasty plus a femoral condyle arthroplasty will be enrolled in the study. Primary criteria for inclusion will be Grade IV changes in the articular cartilage of the femoral condyle and tibial plateau and meniscal pathology in the medial or lateral femorotibial joint as determined by physical examination, diagnostic imaging and knee arthroscopy by the PI. Exclusion criteria include Grade III or IV changes in any other compartment of the knee, acute injury to any other part of the affected lower extremity, or inability to comply with the protocol. After enrollment, patients will undergo standardized knee radiography, and complete assessments (described below). Size-matched (standard clinical methodology) proximal tibia with meniscus and distal femur allografts from the same donor will be obtained from a tissue bank (Musculoskeletal Transplant Foundation, Edison, NJ) who has licensed the MOPS technology. The medial or lateral femoral condyle will be replaced using our novel instrumentation and technique described above. Tibial plateau-meniscus grafts will be trimmed and used to replace the entire medial or lateral tibial condyle while sparing the attachments of ACL, PCL and respective collateral ligament. The tibial plateau graft will be fixated using commercial available implants used for bone fixation. In the event that the meniscus has been detached from the tibial plateau during graft harvest, the periphery of the meniscus will be sutured to the capsule following standard meniscus transplant procedure. Patients will undergo controlled post-operative rehabilitation according to standard protocols for osteochondral with concurrent meniscus allografts. Range of motion, VAS pain score, SF-12, Tegner score, International Knee Documentation Committee (IKDC) subjective and objective scores, PROMIS Bank v1.2 - Physical Function-Mobility, PROMIS v1.1 - Global Health, PROMIS Bank v1.1- Pain Interference, PROMIS Bank v1.2 - Physical Function and Marx score as well as complete radiographs of the affected knee will be obtained prior to surgery and at 6 weeks, 3 months, 6 months, and 12 months after surgery to evaluate healing, function and evidence for arthrosis.
Interventions
None listed
Sponsors
James Stannard
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
No
Inclusion criteria
1. Patient requiring repair via tibial plateau and meniscus arthroplasty plus a femoral condyle arthroplasty 2. The subject is able and willing to consent to participate in the study
Exclusion criteria
1. Acute injury to any other part of the affected lower extremity 2. The subject is unwilling, or unable to consent due to psychiatric condition or legal incompetence 3. BMI \> 40 4. Age \> 50 at the time of enrollment 5. The subject is either pregnant, or a prisoner 6. Currently involved in a workers' compensation case at the time of enrollment
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Visual Analogue Scale Pain Score | 12 months | patient reported Visual Analogue Scale Pain Score, 0 no pain, 10 maximum pain |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Tegner Activity Level Scale | 12 months | Patient reported outcome scale related to work and sporting activities, The Tegner activity scale is a one-item score that graded activity based on work and sports activities on a scale of 0 to 10. Zero represents disability because of knee problems and 10 represents national or international level soccer. |
| International Knee Documentation Committee (IKDC) Total Score | 12 months | Knee specific patient reported outcome, ranges from 0 to 100. This final number is interpreted as a measure of function with higher scores representing higher levels of function. |
| PROMIS - Physical Function and Mobility | 12 months | A survey related to physical function and mobility, T-score metric in which 50 is the mean of a relevant reference population and 10 is the standard deviation (SD) of that population. On the T-score metric: A score of 40 is one SD lower than the mean of the reference population. A score of 60 is one SD higher than the mean of the reference population. A higher score is better for this outcome measure as it indicates more function/mobility compared to the mean of the reference population. |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Post-traumatic Knee OA post-traumatic knee OA and requiring a tibial plateau and meniscus arthroplasty plus a femoral condyle arthroplasty | 10 |
| Total | 10 |
Withdrawals & dropouts
| Period | Reason | FG000 |
|---|---|---|
| Overall Study | Lost to Follow-up | 1 |
Baseline characteristics
| Characteristic | Post-traumatic Knee OA | — |
|---|---|---|
| Age, Categorical <=18 years | 0 Participants | — |
| Age, Categorical >=65 years | 0 Participants | — |
| Age, Categorical Between 18 and 65 years | 10 Participants | — |
| Age, Continuous | 41.4 years | — |
| Race and Ethnicity Not Collected | — | — Participants |
| Region of Enrollment United States | 10 participants | — |
| Sex: Female, Male Female | 2 Participants | — |
| Sex: Female, Male Male | 8 Participants | — |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | 0 / 10 |
| other Total, other adverse events | 4 / 10 |
| serious Total, serious adverse events | 2 / 10 |
Outcome results
Primary
Visual Analogue Scale Pain Score
patient reported Visual Analogue Scale Pain Score, 0 no pain, 10 maximum pain
Time frame: 12 months
Population: 7 patients completed the study without needing revision/TKA surgery or being lost to follow-up
| Arm | Measure | Value (MEAN) |
|---|---|---|
| Post-traumatic Knee OA | Visual Analogue Scale Pain Score | 2.3 units on a scale |
Secondary
International Knee Documentation Committee (IKDC) Total Score
Knee specific patient reported outcome, ranges from 0 to 100. This final number is interpreted as a measure of function with higher scores representing higher levels of function.
Time frame: 12 months
| Arm | Measure | Value (MEAN) |
|---|---|---|
| Post-traumatic Knee OA | International Knee Documentation Committee (IKDC) Total Score | 50.6 units on a scale |
Secondary
PROMIS - Physical Function and Mobility
A survey related to physical function and mobility, T-score metric in which 50 is the mean of a relevant reference population and 10 is the standard deviation (SD) of that population. On the T-score metric: A score of 40 is one SD lower than the mean of the reference population. A score of 60 is one SD higher than the mean of the reference population. A higher score is better for this outcome measure as it indicates more function/mobility compared to the mean of the reference population.
Time frame: 12 months
| Arm | Measure | Group | Value (MEAN) |
|---|---|---|---|
| Post-traumatic Knee OA | PROMIS - Physical Function and Mobility | Physical Function | 41.2 units on a scale |
| Post-traumatic Knee OA | PROMIS - Physical Function and Mobility | Mobility | 43.1 units on a scale |
Secondary
Tegner Activity Level Scale
Patient reported outcome scale related to work and sporting activities, The Tegner activity scale is a one-item score that graded activity based on work and sports activities on a scale of 0 to 10. Zero represents disability because of knee problems and 10 represents national or international level soccer.
Time frame: 12 months
| Arm | Measure | Value (MEAN) |
|---|---|---|
| Post-traumatic Knee OA | Tegner Activity Level Scale | 3.3 units on a scale |