Clinical Outcomes and Return-to-Sport Rates following Fragment Fixation Using Hydroxyapatite/Poly-L-Lactate Acid Threaded Pins for Knee Osteochondritis Dissecans: A Case Series
Taichi Shimizu,
Yoichi Murata,
Hirotaka Nakashima,
Haruki Nishimura,
Hitoshi Suzuki,
Makoto Kawasaki,
Manabu Tsukamoto,
Akinori Sakai,
Soshi Uchida
Affiliations
Taichi Shimizu
Department of Orthopaedic Surgery, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi, Kitakyushu 807-0804, Fukuoka, Japan
Yoichi Murata
Department of Orthopaedic Surgery, Wakamatsu Hospital for University of Occupational and Environmental Health, 1-17-1 Hamamachi, Wakamatsu, Kitakyushu 807-0024, Fukuoka, Japan
Hirotaka Nakashima
Department of Orthopaedic Surgery, Wakamatsu Hospital for University of Occupational and Environmental Health, 1-17-1 Hamamachi, Wakamatsu, Kitakyushu 807-0024, Fukuoka, Japan
Haruki Nishimura
Department of Orthopaedic Surgery, Wakamatsu Hospital for University of Occupational and Environmental Health, 1-17-1 Hamamachi, Wakamatsu, Kitakyushu 807-0024, Fukuoka, Japan
Hitoshi Suzuki
Department of Orthopaedic Surgery, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi, Kitakyushu 807-0804, Fukuoka, Japan
Makoto Kawasaki
Department of Orthopaedic Surgery, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi, Kitakyushu 807-0804, Fukuoka, Japan
Manabu Tsukamoto
Department of Orthopaedic Surgery, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi, Kitakyushu 807-0804, Fukuoka, Japan
Akinori Sakai
Department of Orthopaedic Surgery, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi, Kitakyushu 807-0804, Fukuoka, Japan
Soshi Uchida
Department of Orthopaedic Surgery, Wakamatsu Hospital for University of Occupational and Environmental Health, 1-17-1 Hamamachi, Wakamatsu, Kitakyushu 807-0024, Fukuoka, Japan
Osteochondritis dissecans (OCD) of the knee is an uncommon injury in young active patients. There is currently a lack of knowledge regarding clinical outcomes and return-to-sport rates after fragment fixation surgery using hydroxy appetite poly-L-lactic acid (HA/PLLA) threaded pins for knee OCD among athletes. Our purpose was to investigate the clinical outcomes and return-to-sport rates following osteochondral fragment fixation using HA/PLLA pins for the treatment of knee OCD lesions among athletes. A total of 45 patients were retrospectively reviewed. In total, 31 patients were excluded, and 14 patients were included. Pre- and postoperative patient-reported outcome scores (PROSs), including the International Knee Documentation Committee (IKDC) score and Knee Injury and Osteoarthritis Outcome Scale (KOOS), were compared. In addition, patients were categorized into four groups according to postoperative sports status: higher, same, lower than preinjury, or unable to return to sports. The mean age was 14.4 years (SD 1.67). All patients were male. All PROSs significantly improved at 6, 12, and 24 months postsurgery compared to presurgery. 50% of the patients returned to sports at the same or higher level after surgery. Fragment fixation using HA/PLLA pins leads to favorable clinical outcome scores and high return-to-sport rates in the treatment of athletes with knee OCD.
