Table 1.
List of Modeling Variables
| Category | Levels | |
|---|---|---|
|
| ||
| Baseline Outcome Scores | KOOS (5 subscales); | continuous |
| WOMAC (pain, stiffness subscales) | ||
|
| ||
| Patient Demographics | Age (years) | continuous |
| Gender | male, female | |
| BMI | continuous | |
| Smoking status | never, quit, current | |
| Education level (years) | 1 – 16 (continuous) | |
| Baseline activity level (Marx) | continuous | |
| Main sport played last 2 yrs | basketball, football, soccer, other, none | |
|
| ||
| Surgical Variables | Graft type | Autograft (BTB), autograft (soft tissue), allograft (BTB), allograft (soft tissue) |
| Meniscal pathology | ||
| * previous | no, yes | |
| * medial | normal, no tx for tear, repair, excised, other | |
| * lateral | normal, no tx for tear, repair, excised, other | |
| Articular cartilage pathology | ||
| * previous | no, yes | |
| * medial femoral condyle (MFC) | normal/grade 1, grade 2, grade 3, grade 4 | |
| * lateral femoral condyle (LFC) | normal/grade 1, grade 2, grade 3, grade 4 | |
| * medial tibial plateau (MTP) | normal/grade 1, grade 2, grades 3/4 | |
| * lateral tibial plateau (LTP) | normal/grade 1, grade 2, grades 3/4 | |
| * patella | normal/grade 1, grade 2, grades 3/4 | |
| * trochlea | normal/grade 1, grade 2, grades 3/4 | |
|
| ||
| Miscellaneous Variables | Year of surgery (enrollment) | 2002, 2003, 2004, 2005 |
| Subsequent ipsilateral surgery | no, arthroscopic procedure, revision ACL reconstruction, total knee arthroplasty (TKA) | |
| Subsequent contralateral surgery | no, arthroscopic procedure, ACL reconstruction, total knee arthroplasty (TKA) | |