Primary Versus Secondary Osteochondral Autograft Transplantation for the Treatment of Large Osteochondral Lesions of the Talus

Park, Kwang Hwan; Hwang, Yeokgu; Han, Seung Hwan; Park, Yoo Jung; Shim, Dong Woo; Choi, Woo Jin; Lee, Jin Woo

doi:10.1177/0363546518758014

Cited by 33 publications

(26 citation statements)

References 45 publications

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“…Studies have shown that both mosaicplasty 108 and OATS could fulfill such criteria. 39 Park et al 117 examined whether there is a difference using the OATS as a primary or secondary repair method and could not find any significant difference after a mean follow-up time of 6 years.…”

Section: Osteo(chondral) Transplantationmentioning

confidence: 99%

Osteochondral Lesions of the Talus: A Review on Talus Osteochondral Injuries, Including Osteochondritis Dissecans

Bruns¹,

Habermann

Werner

2021

CARTILAGE

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This is a review on talus osteochondritis dissecans and talus osteochondral lesions. A majority of the osteochondral lesions are associated with trauma while the cause of pure osteochondritis dissecans is still much discussed with a possible cause being repetitive microtraumas associated with vascular disturbances causing subchondral bone necrosis and disability. Symptomatic nondisplaced osteochondral lesions can often be treated conservatively in children and adolescents while such treatment is less successful in adults. Surgical treatment is indicated when there is an unstable cartilage fragment. There are a large number of different operative technique options with no number one technique to be recommended. Most techniques have been presented in level II to IV studies with a low number of patients with short follow ups and few randomized comparisons exist. The actual situation in treating osteochondral lesions in the ankle is presented and discussed.

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Section: Osteo(chondral) Transplantationmentioning

confidence: 99%

Osteochondral Lesions of the Talus: A Review on Talus Osteochondral Injuries, Including Osteochondritis Dissecans

Bruns¹,

Habermann

Werner

2021

CARTILAGE

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“…Image enhancement is the most basic technique in image processing technology [4]. Its main purpose is to enhance the useful information in the image, improve the visual effect of the image, according to the characteristics of the original image, purposefully enhance the overall or partial information of the image, and improve the original contrast and sharpness of the image, or the selective enhancement of some interesting details in the image while suppressing the uninteresting part of the image [5]. Meng and Qiao [6] presented a review of different techniques for medical image enhancement to improve the visual appearance of an image and highlighted various image enhancement methods for the medical professional.…”

Section: Introductionmentioning

confidence: 99%

Design of Medical Image Detail Enhancement Algorithm for Ankle Joint Talar Osteochondral Injury

Yun-dong

2021

Journal of Healthcare Engineering

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Medical imaging modalities, such as magnetic resonance imaging (MRI) and computerized tomography (CT), have allowed medical researchers and clinicians to examine the structural and functional features of the human body, thereby assisting the clinical diagnosis. However, due to the highly controlled imaging environment, the imaging process often creates noise, which seriously affects the analysis of the medical images. In this study, a medical imaging enhancement algorithm is presented for ankle joint talar osteochondral injury. The gradient operator is used to transform the image into the gradient domain, and fuzzy entropy is employed to replace the gradient to determine the diffusion coefficient of the gradient field. The differential operator is used to discretize the image, and a partial differential enhancement model is constructed to achieve image detail enhancement. Three objective evaluation indexes, namely, signal-to-noise ratio (SNR), information entropy (IE), and edge protection index (EPI), were employed to evaluate the image enhancement capability of the proposed algorithm. Experimental results show that the algorithm can better suppress noise while enhancing image details. Compared with the original image, the histogram of the transformed image is more uniform and flat and the gray level is clearer.

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“…For example, patients who received AOT as a second operative treatment had worse outcomes, which may be related to injury to the subchondral bone. 10 In contrast, Park et al 18 presented that patients with large OLT treated with secondary AOT after failed marrow stimulation were found to be comparable with those who were treated with primary AOT. According to the results from our study, both clinical and functional outcomes were improved in patients who received HA injections after failed bone marrow stimulation compared with a pretreatment baseline, and without complications or adverse events.…”

Section: Discussionmentioning

confidence: 96%

Intra-articular Injections of Hyaluronic Acid on Osteochondral Lesions of the Talus After Failed Arthroscopic Bone Marrow Stimulation

et al. 2020

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Background: The purpose of the study was to compare clinical and functional outcomes before and after hyaluronic acid (HA) injections in patients with osteochondral lesions of the talus who experienced a failure of their primary treatment with arthroscopic microfracture surgery. Methods: A total of 40 patients were included in the final study. These patients had received microfracture surgery but continued to experience postoperative pain over an average of 13.0 months (range, 0-81 months) and were available for investigation with a mean follow-up for 29.1 months (SD 14.7; range 2.6-79.6 months). All patients received intra-articular injections of HA once per week for 3 weeks. We assessed clinical and functional outcomes before and after injection using the American Orthopaedic Foot & Ankle Society (AOFAS) score, Foot and Ankle Outcome Score (FAOS), Short Form Health Survey (SF-36), the visual analog scale (VAS) for pain, and the Alexander subjective scale. Results: The AOFAS score significantly increased from 50.7 ± 13.8 to 79.9 ± 13.8 and the FAOS scores for symptom, pain, daily living, and sports were significantly higher postinjection compared to preinjection (all P < .001). Similarly, the mean VAS for pain was significantly decreased after 6 weeks following injection and continued to decrease over the follow-up period; the mean VAS was significantly lower postinjection compared to preinjection at 12 months ( P < .001). Conclusion: Intra-articular HA injections on average significantly improved clinical and functional scores after failed primary operative treatment. HA injections may provide an alternative to secondary operative treatment and provide better clinical outcomes than other conservative treatments. Level of Evidence: Level II, prospective observational cohort study.

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Primary Versus Secondary Osteochondral Autograft Transplantation for the Treatment of Large Osteochondral Lesions of the Talus

Cited by 33 publications

References 45 publications

Osteochondral Lesions of the Talus: A Review on Talus Osteochondral Injuries, Including Osteochondritis Dissecans

Osteochondral Lesions of the Talus: A Review on Talus Osteochondral Injuries, Including Osteochondritis Dissecans

Design of Medical Image Detail Enhancement Algorithm for Ankle Joint Talar Osteochondral Injury

Intra-articular Injections of Hyaluronic Acid on Osteochondral Lesions of the Talus After Failed Arthroscopic Bone Marrow Stimulation

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