2025 ISAKOS Biennial Congress ePoster
Subtalar Arthroscopic Surgery Utilizing 1.9-mm Diameter Needle Arthroscopy for Osteochondral Lesions of the Subtalar Joint Without any Invasive Distraction: A Report of Three Cases
Yoshiharu Shimozono, MD, PhD, Kyoto City, Kyoto JAPAN
Daisuke Mori, MD, Kyoto JAPAN
Masahiko Kobayashi, MD, PhD, Kyoto JAPAN
Fumiharu Yamashita, MD, PhD, Kyoto, Kyoto JAPAN
Kyoto Shimogamo Hospital, Kyoto, Kyoto, JAPAN
FDA Status Cleared
Summary
Subtalar arthroscopic surgery using 1.9-mm diameter needle arthroscopy is a safe and effective surgical treatment for subtalar OCLs without any invasive distraction and disruption to the surrounding tissues.
ePosters will be available shortly before Congress
Abstract
Introduction
Subtalar arthroscopy is used for the treatment of subtalar osteochondral lesion (OCL). However, an invasive bone distraction technique is typically necessary to visualize joints and treat lesions. In this report, we present three cases of arthroscopic bone marrow stimulation with platelet-rich plasma (PRP) without invasive distraction using 1.9-mm diameter needle arthroscopy for subtalar joint OCLs.
Methods
Three patients who underwent arthroscopic bone marrow stimulation for subtalar joint OCL were included. The mean age was 27 years (29-37), and the mean follow-up time was 22.0 months (15-27). The OCLs were located in the posterior facet of the calcaneus in all patients. A 1.9-mm diameter arthroscopic system was utilized through the anterolateral portal. Bone marrow stimulation was performed through the middle portal. All patients received PRP injections after surgery. The JSSF Scale and VAS scores were evaluated.
Results
None of the patients required any invasive distraction technique to enter the subtalar joint and visualize the lesions. Manual distraction alone was sufficient for all patients. The mean JSSF score improved significantly from 70.3 (65-74) to 96.7 (90-100). The mean VAS score was 5.7 (4-7) preoperatively and 0.3 (0-1) at the final follow-up. All patients were able to return to sports activities. No complications were observed.
Conclusions
Subtalar arthroscopic surgery using 1.9-mm diameter needle arthroscopy is a safe and effective surgical treatment for subtalar OCLs without any invasive distraction and disruption to the surrounding tissues.