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. Author manuscript; available in PMC: 2021 Aug 12.
Published in final edited form as: Am J Sports Med. 2020 Aug;48(10):2418–2428. doi: 10.1177/0363546520935867

Table 2.

Descriptive Summaries of Baseline Characteristics and 6-year Outcomes

Variable Summary Variable Summary
Age 23 (17,35) AC Pathology (Medial)
Sex Normal/Grade 1 2485 (75.9%)
Female 1433 (43.7%) Grade 2 466 (14.2%)
Male 1843 (56.3%) Grades 3/4 325 (9.9%)
BMI 24.9 (22.3,28) AC Pathology (Lateral)
<NA> 48 (1.5%) Normal/Grade 1 2558 (78.1%)
Baseline MARX 12 (8,16) Grade 2 502 (15.3%)
<NA> 31 (0.9%) Grades 3/4 216 (6.6%)
Smoking status AC Pathology (Patellofemoral)
Never 2601 (79.4%) Normal/Grade 1 2556 (78.0%)
Quit 334 (10.2%) Grade 2 417 (12.7%)
Current 302 (9.2%) Grades 3/4 303 (9.2%)
NA 39 (1.2%) AC Pathology (highest grade in any compartment)
Reconstruction type Normal/Grade 1 1833 (56.0%)
Primary 3059 (93.4%) Grade 2 830 (25.3%)
Revision 217 (6.6%) Grade 3 479 (14.6%)
Graft type Grade 4 134 (4.1%)
Autograft BTB 1408 (43.0%) Other concurrent ligament reconstruction
Autograft HS 1106 (33.8%) No 3178 (97.0%)
Allograft 762 (23.3%) Yes 98 (3.0%)
Medial Meniscus Treatment Previous Meniscal surgery (ipsilateral knee)
Normal 2014 (61.5%) No 2980 (91.0%)
No tx for tear 146 (4.5%) Yes 296 (9.0%)
Repair 472 (14.4%) Previous ACL reconstruction surgery (on contralateral knee)
Excision 599 (18.3%) No 2979 (90.9%)
Other 45 (1.4%) Yes 297 (9.1%)
Lateral Meniscus Treatment Number of patients incurring at least 1 subsequent surgery on the ipsilateral knee
Normal 1746 (53.3%) No 2387 (79.6%)
No tx. for tear 328 (10%) Yes 612 (20.4%)
Repair 223 (6.8%) Number of patients incurring at least 1 meniscal-related subsequent surgery on the ipsilateral knee
Excision 951 (29%) No 2728 (91.0%)
Other 28 (0.9%) Yes 271 (9.0%)
Meniscus Treatment (most severe) Number of patients incurring at least 1 articular cartilage-related subsequent surgery on the ipsilateral knee
Normal 1090 (33.3%) No 2855 (95.2%)
No tx. for tear 289 (8.8%) Yes 144 (4.8%)
Repair 472 (14.4%) Number of patients incurring at least 1 arthrofibrosis-related subsequent surgery on the ipsilateral knee
Excision 1369 (41.8%) No 2764 (92.2%)
Other 56 (1.7%) Yes 235 (7.8%)
Number of patients incurring at least 1 subsequent surgery due to loss of motion on the ipsilateral knee
No 2915 (97.2%)
Yes 84 (2.8%)

Key: AC=articular cartilage; BMI=body mass index; BTB=bone-patellar tendon-bone; HS=hamstring; tx=treatment.