3cd785fd6df10ce62b3762d177e65795 253379.pdf bd7b1a7ab238095301314f4ed6a061a602210220 253379.pdf 7957511b4629b002afd4cb07fcf61448ce0c2db1dda0d99626b6d0a475b9ea52 253379.pdf Title: Internal Fixation of Osteochondritis Dissecans of the Knee Leads to Good Long-Term Outcomes and High Degree of Healing without Differences between Fixation Devices Subject: The aim of the present study is to describe results at long-term follow-up of internal fixation of unstable Osteochondritis Dissecans (OCD) achieved with three different fixation devices in skeletally mature knees. A retrospective cohort study was performed at 5 to 19 years follow-up. Patient-reported questionnaires were collected at the final follow-up. Postoperative X-rays and MRIs were evaluated for healing of the lesion and articular degeneration. An arthroscopic second look was performed in 74.3% of the cases. Failures were reported as reintervention to address the osteochondral lesion or poor functional outcomes at the last follow-up. A total of 39 subjects with a median follow-up of 10.7 years were included. Herbert screws were used in 51.2% of the cases, bioabsorbable nails in 25.7% of the cases and cannulated screws in 23.1% of the cases. No differences were observed in terms of the clinical score (International Knee Documentation Committee (IKDC) p = 0.211; Lysholm p = 0.197), radiographic union (p = 0.102) or radiographic degeneration (p = 0.238) between the three different fixation devices. Arthroscopic second look found complete stability of the lesions in all 29 cases evaluated. The mean postoperative Lysholm score was 83 (range = 33–100) and IKDC score was 79 (range = 39–100). Radiographic union was seen in 74% of the cases. Lack of radiographic union was correlated with worst functional scores. A failure rate of 20.5% was found: four reinterventions were performed, and four patients had poor scores at last follow up. This study shows that internal fixation of condylar OCD in skeletally mature patients provides good long-term clinical results and a high degree of healing regardless of the dimensions of the lesion and type of fixation. Keywords: osteochondritis dissecans; OCD; internal fixation; skeletally mature knee Author: Simone Perelli, Agustín Rubén Molina Romoli, Matías Costa-Paz, Juan Ignacio Erquicia, Pablo Eduardo Gelber and Juan Carlos Monllau Creator: LaTeX with hyperref package Producer: pdfTeX-1.40.18 CreationDate: Sun Nov 10 08:47:18 2019 CET ModDate: Sun Nov 10 08:47:18 2019 CET Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 12 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 1747465 bytes Optimized: no PDF version: 1.5 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- GXIMVP+URWPalladioL-Ital Type 1 Custom yes yes no 61 0 FOQSFU+URWPalladioL-Bold Type 1 Custom yes yes no 62 0 LZDGTK+Rpxb Type 1 Builtin yes yes no 63 0 YSPQJI+VnURWPalladioL-Bold Type 1 Custom yes yes no 64 0 TNTEEC+URWPalladioL-Roma Type 1 Custom yes yes no 65 0 RVDESI+VnURWPalladioL Type 1 Custom 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