Table 4. Comparison of LEFS score between the pre- and post-operative PT and the post-operative PT only.

Variables	Pre-and post-op PT	Post-op PT only
	Mean ± SD	Mean ± SD
Pre-op	18.9 ± 10.1	15.6 ± 9.1
3 weeks post-op	28.6 ± 11.4	30.2 ± 12.8
6 weeks post-op	55.9 ± 15.9	58.0 ± 13.5

LEFS: Lower extremity functional scale; SD: standard deviation; PT: physical therapy