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COPYRIGHT © BY THE JOURNAL OF BONE AND JOINT SURGERY,INCORPORATED

NWACHUKWU ET AL.

RETURN TO PLAY AND PATIENT SATISFACTION AFTER ACLRECONSTRUCTION.STUDY WITH MINIMUM TWO-YEAR FOLLOW-UP

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Page 1 of 2 Appendix

TABLE E-1 Patient-Reported Outcomes in Overall Cohort Outcome Measure/Follow-up Interval* Mean SD IKDC score

Preop. 50.08 15.57

2 yr 87.40 10.66

MCID 8.9 —

Lysholm score

Preop. 61.11 18.14

2 yr 89.47 10.41

MCID 10.0 —

Tegner score

Preop. 2.62 2.01

2 year 6.52 2.04

Marx score

Preop. 15.82 0.47

2 yr 11.79 4.20

SF-12 PCS score

Preop. 41.41 8.99

2 yr 54.71 4.56

MCID 5.1 —

SF-12 MCS score

Preop. 53.52 8.12

2 yr 55.68 5.66

MCID 4.3 —

*The minimal clinically important difference (MCID) was calculated, using a distribution-based method, as one-half of the SD of the change in outcome score from baseline to the 2-year follow-up. A distribution-based method for calculating the MCID has been well described in the literature^1-5 and is the preferred method in this analysis given the lack of an anchor question for anchor-based MCID calculation.

COPYRIGHT © BY THE JOURNAL OF BONE AND JOINT SURGERY,INCORPORATED

NWACHUKWU ET AL.

RETURN TO PLAY AND PATIENT SATISFACTION AFTER ACLRECONSTRUCTION.STUDY WITH MINIMUM TWO-YEAR FOLLOW-UP

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2

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TABLE E-2 Comparison of Patients Included with Those Excluded from Analysis of Return to Prior Level of Function Mean*

Included

(N = 175) Excluded

(N = 57) P Value Returned to play (%) 89.1 80.4 0.089 Time to return to play (mo) 10.1 10.35 0.829 IKDC score

Preop. 50.05 50.43 0.87

2 yr 88.45 84.09 0.01

Lysholm score

Preop. 60.17 64.38 0.13

2 yr 90.25 87.16 0.09

Tegner score

Preop. 2.70 2.38 0.20

2 yr 6.69 6.00 0.01

Marx score

Preop. 15.86 15.70 0.06

2 year 12.05 10.98 0.10

SF-12 PCS score

Preop. 41.47 41.42 0.97

2 yr 55.03 53.64 0.13

SF-12 MCS score

Preop. 54.01 52.13 0.14

2 yr 55.93 54.84 0.22

*With the exception of the values for “Returned to play,” which are given as percentages.

References

1. Berliner JL, Brodke DJ, Chan V. SooHoo NF, Bozic KJ. John Charnley Award: Preoperative patient-reported outcome measures predict clinically meaningful improvement in function after THA. Clin Orthop Relat Res. 2016 Feb;474(2):321-9.

2. Chesworth BM, Mahomed NN, Bourne RB, Davis AM; OJRR Study Group. Willingness to go through surgery again validated the WOMAC clinically important difference from THR/TKR surgery. J Clin Epidemiol. 2008 Sep;61(9):907-18. Epub 2008 Feb 14.

3. Norman GR, Sloan JA, Wyrwich KW. Interpretation of changes in health-related quality of life: the remarkable universality of half a standard deviation. Med Care. 2003 May;41(5):582-92.

4. Nwachukwu BU, Fields K, Chang B, Nawabi DH, Kelly BT, Ranawat AS. Preoperative outcome scores are predictive of achieving the minimal clinically important difference after arthroscopic treatment of femoroacetabular impingement.

Am J Sports Med. 2016 Oct 20. pii:0363546516669325. [Epub ahead of print]

5. Quintana JM, Escobar A, Bilbao A, Arostegui I, Lafuente I, Vidaurreta I. Responsiveness and clinically important differences for the WOMAC and SF-36 after hip joint replacement. Osteoarthritis Cartilage. 2005 Dec;13(12):1076-83. Epub 2005 Sep 09.