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Retrograde Drilling With Tibial Autograft in Osteochondral Lesions of the Talar Dome.

ABSTRACT: Osteochondral lesions that compromise the ankle are rare, with an incidence between 0.02% and 1.5% according to different series. This location is the third in frequency, after knee and elbow. The location of the osteochondral lesion allows one to infer the producing mechanism. Lateral defects are produced by inversion and dorsiflexion of the ankle (usually anterior, affecting 3 and 6 talar zones), whereas medial defects are produced by plantar flexion, inversion, and internal rotation (most commonly posterior, affecting 4 and 7 talar zones). The injury causes pain associated with weight load, impaired function, limited range of motion, stiffness, blockage, and edema. Early diagnosis of an osteochondral lesion is particularly important because the lack of diagnosis can lead to the evolution of a small and stable lesion in a larger lesion or an unstable fragment, which can result in chronic pain, instability of the joint, and premature osteoarthritis. Multiple therapeutic strategies have been described, including conservative and surgical treatment. The purpose of this Technical Note is to describe arthroscopic-assisted retrograde drilling with tibial autograft procedure for osteochondral lesions of the talar dome.

SUBMITTER: Jimeno Torres E

PROVIDER: S-EPMC7451435 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:BackgroundRetrograde drilling (RD) is generally used for treating osteochondral lesion of the talus (OLT) with a stable osteochondral fragment and nearly normal articular cartilage surface. Previous studies that included participants of various ages have reported good clinical results. This study aimed to clarify the clinical outcomes of RD for OLT in juvenile patients whose bone-forming ability and physical activity might affect the healing process.MethodsThis retrospective study included 8 juvenile patients who underwent RD for OLT (5 boys and 3 girls, mean age 14.9 years, mean follow-up 2 years, 7 medial and 1 central lesion). American Orthopaedic Foot & Ankle Society (AOFAS) ankle-hindfoot score and ankle activity score were evaluated, and arthroscopic findings were graded according to the International Cartilage Research Society (ICRS) classification system. The condition of the underlying bone was assessed on preoperative computed tomographic images. The stability, incorporation, and subsidence of the osteochondral fragment, articular surface congruity, and the area of the bone marrow lesion (BML) were evaluated using magnetic resonance imaging (MRI).ResultsAOFAS ankle-hindfoot score and ankle activity score significantly improved postoperatively. Arthroscopically, the lesions were classified as ICRS grade 0 or 1. Bone sclerosis or multiple small cysts of the underlying bone were observed in all patients. MRI demonstrated no signs of osteochondral fragment instability or subsidence, good or fair fragment incorporation, good articular surface congruity, or slight irregularity. The postoperative BML was reduced; however, these BMLs were still detectable at 1 year after surgery.ConclusionOur data suggested that RD is an option for treating juvenile patients with OLT refractory to nonoperative treatment at short-term follow-up. Although bone sclerosis or multiple small cysts were identified in the underlying bone preoperatively and the BML under the osteochondral fragment remained postoperatively, clinical status such as pain and physical activity level were improved by RD.Level of evidenceLevel IV, retrospective case series.

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Retrograde Drilling With Tibial Autograft in Osteochondral Lesions of the Talar Dome.

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