Related Experiment Video
Updated: Jun 1, 2025
Treatment of Osteochondral Defects in the Rabbit's Knee Joint by Implantation of Allogeneic Mesenchymal Stem Cells in Fibrin Clots
Published on: May 21, 2013
Functional Recovery and Clinical Outcome After Internal Fixation Using Osteochondral Autologous Transplantation for
Kenta Amai1, Ryo Kanto1, Shintaro Onishi2
1Department of Orthopaedic Surgery, Hyogo Medical University, Nishinomiya, Hyogo, Japan.
Background:
Functional recovery and return to sports after fixation of osteochondritis dissecans (OCD) lesions of the knee with osteochondral autologous transplantation (OAT) have not been well investigated.
Purpose:
To retrospectively evaluate the functional recovery and clinical outcomes after internal fixation with OAT for knee OCD.
Study Design:
Case series; Level of evidence, 4.
Methods:
A consecutive series of patients who underwent OAT for OCD lesions between 2010 and 2020 were initially enrolled in the study. Patients with adult-onset OCD and those who underwent fragment removal and/or mosaicplasty were excluded. Lysholm score, Tegner activity scale, return-to-sports rate (at the practice/training and preinjury levels), and time to return were evaluated. Clinical factors influencing postoperative functional recovery were analyzed.
Results:
Included were 24 patients (26 knees); there were 23 male and 1 female patients, with a mean age of 14.7 years. The mean follow-up period was 27.6 months. A total of 17 lesions were located in the medial femoral condyle and 9 in the lateral femoral condyle. The mean Tegner score was 7.0 preoperatively and 6.5 postoperatively, with no significant difference. The return-to-sports rate was 96.2% at the practice/training level and 84.6% at the preinjury level, with an average return time of 5.1 months and 9.6 months, respectively. In a subgroup analysis of knees that returned to preinjury level (n = 22) by lesion location, there was a significant difference between knees with lesions in the lateral femoral condyle (12.9 months) versus the medial femoral condyle (8.1 months) (P = .02). The rate of return to preinjury level after primary surgery was significantly higher than after revision surgery after failed drilling (P = .02).
Conclusion:
Return-to-sports rates and clinical outcomes were favorable after fixation with OAT in patients with knee OCD. A shorter time to return to sports was observed in knees with medial lesions compared with lateral lesions. Furthermore, the rate of return to sports at the preinjury level was significantly higher after primary surgery than after revision surgery after drilling.
More Related Videos
07:24Autologous Microfractured and Purified Adipose Tissue for Arthroscopic Management of Osteochondral Lesions of the Talus
Published on: January 23, 2018
08:58Matrix-assisted Autologous Chondrocyte Transplantation for Remodeling and Repair of Chondral Defects in a Rabbit Model
Published on: May 21, 2013
