To explorethe effect of different rehabilitation approaches on rehabilitation training after knee dislocation surgery.

A retrospectively study was carried out on the patients with knee dislocation combined with ligament injury in No.908 Hospital of Chinese PLA from October 2015 to September 2018.Inclusion criteria: knee dislocation (self-reduction included), Schenck classification of KD-Ⅰ, KD-Ⅲ, unilateral injury, treated by arthroscopy. According to the inclusion and exclusion criteria, a total of 67 subjects were included in the study and were divided into two groups (39 in the remote guidance group and 28 in the institutional rehabilitation group) according to the way of rehabilitation exercise after surgery. The Lysholm score, the International Knee Committee (IKDC) knee evaluation score, range of motion (ROM) of knee joints and the direct cost of rehabilitation training were compared between the two groups one year after operation, and compared by t-test. Incision infection, acute compartment syndrome, surgery-related vascular nerve injury and other complications were recorded.

The Lysholm score(t=-1.722), IKDC score(t=-1.184) and ROM(t=-1.695) of knee joints of the two groups at one year after operation were roughly equivalent (P>0.05), but the direct cost (t=-73.509) of rehabilitation training in the remote guidance group was significantly lower than that in the institutional rehabilitation group (P<0.05). Two patients (5.12%) in the remote guidance group and one patient (3.57%) in the institutional rehabilitation group had redness and swelling of the surgical incision, all of them were cured after the application of antibiotics and wound dressing change, and no infection of knee joint was found during the follow-up period. None of the patients had acute compartment syndrome or surgery-related vascular nerve injury.

Rehabilitation training guided by remote video after knee dislocation combined with ligament injury can achieve consistent knee function recovery compared with training in rehabilitation institutions, but the cost is significantly reduced.