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Article: Radiological Characteristics of Low-Grade Lytic Spondylolisthesis: Similarity to Dysplastic Spondylolisthesis.

Cho, Sung Tan / Kim, Jin Hwan

2022 Volume 17, Issue 2, Page(s) 347–354

Abstract: Study design: Retrospective case-control study.: Purpose: This study aimed to analyze the etiology of low-grade lytic spondylolisthesis based on the radiologic features of the vertebra.: Overview of literature: According to the Marchetti- ... ...

Abstract	Study design: Retrospective case-control study. Purpose: This study aimed to analyze the etiology of low-grade lytic spondylolisthesis based on the radiologic features of the vertebra. Overview of literature: According to the Marchetti-Bartolozzi classification scheme, high-grade lytic spondylolisthesis (Meyerding grade 3-5) is classified as dysplastic. However, determination of the etiology for low-grade lytic spondylolisthesis as developmental or traumatic remains controversial. Methods: Patients admitted and treated for one-level (L4/5 or L5/S1) low-grade spondylolisthesis were included in the study. A total of 135 patients were divided into the degenerative or lytic spondylolisthesis groups according to their condition (81 patients [degenerative group] vs. 54 patients [lytic group]). To assess the level of similarity in the radiological findings between low-grade lytic spondylolisthesis and dysplastic spondylolisthesis, the pedicle diameters and vertebral heights of the L4 and L5 vertebrae were measured on computed tomography images. Measurements were then converted to each vertebra's ratio to reduce confounding factors among individuals. Results: The affected vertebra had a smaller sagittal pedicle diameter/transverse pedicle diameter ratio in the low-grade lytic spondylolisthesis group compared to the degenerative group, and the posterior vertebral height/anterior vertebral height ratio of L5 was smaller in the L5/S1 lytic spondylolisthesis group compared to the degenerative spondylolisthesis group. Conclusions: Low-grade lytic spondylolisthesis and dysplastic spondylolisthesis demonstrated similar radiological findings. Hence, surgeons should be attentive to the morphology of the vertebral body and posterior column during preoperative planning for the treatment of low-grade lytic spondylolisthesis.
Language	English
Publishing date	2022-09-23
Publishing country	Korea (South)
Document type	Journal Article
ZDB-ID	2559763-2
ISSN	1976-7846 ; 1976-1902
ISSN (online)	1976-7846
ISSN	1976-1902
DOI	10.31616/asj.2022.0033
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Article ; Online: Connecting the S2 alar-iliac screw head to the satellite rod for surgical correction of degenerative sagittal imbalance.

Cho, Sung Tan / Lee, Dong-Ho / Cho, Jae Hwan / Park, Sehan / Kim, Jin Hwan / Lee, Mi Young / Yoon, So Jeong / Hwang, Chang Ju

European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society

2024

Abstract: Purpose: The S2AI screw technique has several advantages over the conventional iliac screw fixation technique. However, connecting the S2AI screw head to the main rod is difficult due to its medial entry point. We introduce a new technique for ... ...

Abstract	Purpose: The S2AI screw technique has several advantages over the conventional iliac screw fixation technique. However, connecting the S2AI screw head to the main rod is difficult due to its medial entry point. We introduce a new technique for connecting the S2AI screw head to a satellite rod and compare it with the conventional method of connecting the S2AI screw to the main rod. Methods: Seventy-four patients who underwent S2AI fixation for degenerative sagittal imbalance and were followed up for ≥ 2 years were included. All the patients underwent long fusion from T9 or T10 to the pelvis. The S2AI screw head was connected to the satellite rod (SS group) in 43 patients and the main rod (SM group) in 31 patients. In the SS group, the satellite rod was placed medial to the main rod and connected by the S2AI screw and domino connectors. In the SM group, the main rod was connected directly to the S2AI screw head and supported by accessory rods. Radiographic and clinical outcomes were evaluated in both groups. Results: There were no significant differences in postoperative complications, including proximal junctional failure, proximal junctional kyphosis, rod breakage, screw loosening, wound problems, and infection between the two groups. Furthermore, the correction power of sagittal deformity and clinical results in the SS group were comparable to those in the SM group. Conclusion: Connecting the S2AI screw to the satellite rod is a convenient method comparable to the conventional S2AI connection method in terms of radiological and clinical outcomes.
Language	English
Publishing date	2024-01-09
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1115375-1
ISSN	1432-0932 ; 0940-6719
ISSN (online)	1432-0932
ISSN	0940-6719
DOI	10.1007/s00586-023-08106-4
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Article: Current Trends in Artificial Intelligence-Assisted Spine Surgery: A Systematic Review.

Liawrungrueang, Wongthawat / Cho, Sung Tan / Sarasombath, Peem / Kim, Inhee / Kim, Jin Hwan

Asian spine journal

2023 Volume 18, Issue 1, Page(s) 146–157

Abstract: This systematic review summarizes existing evidence and outlines the benefits of artificial intelligence-assisted spine surgery. The popularity of artificial intelligence has grown significantly, demonstrating its benefits in computer-assisted surgery ... ...

Abstract	This systematic review summarizes existing evidence and outlines the benefits of artificial intelligence-assisted spine surgery. The popularity of artificial intelligence has grown significantly, demonstrating its benefits in computer-assisted surgery and advancements in spinal treatment. This study adhered to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses), a set of reporting guidelines specifically designed for systematic reviews and meta-analyses. The search strategy used Medical Subject Headings (MeSH) terms, including "MeSH (Artificial intelligence)," "Spine" AND "Spinal" filters, in the last 10 years, and English- from January 1, 2013, to October 31, 2023. In total, 442 articles fulfilled the first screening criteria. A detailed analysis of those articles identified 220 that matched the criteria, of which 11 were considered appropriate for this analysis after applying the complete inclusion and exclusion criteria. In total, 11 studies met the eligibility criteria. Analysis of these studies revealed the types of artificial intelligence-assisted spine surgery. No evidence suggests the superiority of assisted spine surgery with or without artificial intelligence in terms of outcomes. In terms of feasibility, accuracy, safety, and facilitating lower patient radiation exposure compared with standard fluoroscopic guidance, artificial intelligence-assisted spine surgery produced satisfactory and superior outcomes. The incorporation of artificial intelligence with augmented and virtual reality appears promising, with the potential to enhance surgeon proficiency and overall surgical safety.
Language	English
Publishing date	2023-12-22
Publishing country	Korea (South)
Document type	Journal Article
ZDB-ID	2559763-2
ISSN	1976-7846 ; 1976-1902
ISSN (online)	1976-7846
ISSN	1976-1902
DOI	10.31616/asj.2023.0410
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Article: Forearm bone mineral density as a predictor of reduction loss in distal radius fractures treated with cast immobilization.

Cho, Sung Tan / Kim, Jin Hwan / Lee, Sung San / Lee, Yong Jae / Lee, Hyun Il

Frontiers in surgery

2022 Volume 9, Page(s) 1043002

Abstract: Objective: Many potential predictors have been identified and proposed for predicting late reduction loss in distal radius fractures. However, no report exists on whether the bone mineral density (BMD) of the forearm correlates with the loss of ... ...

Abstract	Objective: Many potential predictors have been identified and proposed for predicting late reduction loss in distal radius fractures. However, no report exists on whether the bone mineral density (BMD) of the forearm correlates with the loss of reduction in distal radius fractures. This study aimed to investigate whether forearm BMD can be used as a predictor of reduction loss in distal radius fractures treated with cast immobilization. Methods: Ninety patients with distal radius fractures were divided into two groups according to the maintenance or loss of reduction evaluated from radiographs taken at least 6 weeks after their injury. Lumbar and forearm BMD (total and metaphysis) T-scores were measured and compared between the maintenance of reduction (MOR) group and the loss of reduction (LOR) group. Additionally, serologic markers (C-terminal telopeptide, osteocalcin, vitamin D) and radiologic risk factors (intra-articular fracture, ulnar fracture, dorsal comminuted fracture, volar hook) were evaluated and a logistic multiple regression analysis was performed to know the main risk factors of reduction loss. Results: Reduction loss was observed in 38 patients (42.2%). The total and metaphyseal BMD of the forearm was less in the LOR group than in the MOR group. However, the difference was not statistically significant [-2.9 vs. -2.5 for total ( Conclusions: Forearm BMD was not a valuable prognostic factor for reduction loss in distal radius fractures. Initial dorsal comminution and ulnar variance rather than forearm BMD should be considered preferentially when predicting which patients are at high risk of reduction loss in distal radius fractures.
Language	English
Publishing date	2022-11-28
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2773823-1
ISSN	2296-875X
ISSN	2296-875X
DOI	10.3389/fsurg.2022.1043002
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Article ; Online: Prediction of Progressive Collapse in Osteoporotic Vertebral Fractures Using Conventional Statistics and Machine Learning.

Cho, Sung Tan / Shin, Dong-Eun / Kim, Jin-Woo / Yoon, Siyeoung / Ii Lee, Hyun / Lee, Soonchul

Spine

2023 Volume 48, Issue 21, Page(s) 1535–1543

Abstract: Study design: Retrospective cohort study.: Objective: The objective of this study was to determine prognostic factors for the progression of osteoporotic vertebral fracture (OVF) following conservative treatment.: Summary of background data: Few ... ...

Abstract	Study design: Retrospective cohort study. Objective: The objective of this study was to determine prognostic factors for the progression of osteoporotic vertebral fracture (OVF) following conservative treatment. Summary of background data: Few studies have evaluated factors associated with progressive collapse (PC) of OVFs. Furthermore, machine learning has not been applied in this context. Materials and methods: The study involved the PC and non-PC groups based on a compression rate of 15%. Clinical data, fracture site, OVF shape, Cobb angle, and anterior wedge angle of the fractured vertebra were evaluated. The presence of intravertebral cleft and the type of bone marrow signal change were analyzed using magnetic resonance imaging. Multivariate logistic regression analysis was performed to identify prognostic factors. In machine learning methods, decision tree and random forest models were used. Results: There were no significant differences in clinical data between the groups. The proportion of fracture shape ( P <0.001) and bone marrow signal change ( P =0.01) were significantly different between the groups. Moderate wedge shape was frequently observed in the non-PC group (31.7%), whereas the normative shape was most common in the PC group (54.7%). The Cobb angle and anterior wedge angle at diagnosis of OVFs were higher in the non-PC group (13.2±10.9, P =0.001; 14.3±6.6, P <0.001) than in the PC group (10.3±11.8, 10.4±5.5). The bone marrow signal change at the superior aspect of the vertebra was more frequently found in the PC group (42.5%) than in the non-PC group (34.9%). Machine learning revealed that vertebral shape at initial diagnosis was a main predictor of progressive vertebral collapse. Conclusion: The initial shape of the vertebra and bone edema pattern on magnetic resonance imaging appear to be useful prognostic factors for progressive collapse in osteoporotic vertebral fractures.
MeSH term(s)	Humans ; Spinal Fractures/diagnosis ; Retrospective Studies ; Spine/diagnostic imaging ; Osteoporotic Fractures/diagnostic imaging ; Osteoporotic Fractures/therapy ; Magnetic Resonance Imaging/methods ; Fractures, Compression/diagnostic imaging
Language	English
Publishing date	2023-05-22
Publishing country	United States
Document type	Journal Article
ZDB-ID	752024-4
ISSN	1528-1159 ; 0362-2436
ISSN (online)	1528-1159
ISSN	0362-2436
DOI	10.1097/BRS.0000000000004598
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Article: Vertebral Body Sliding Osteotomy as a Surgical Strategy for the Treatment of Cervical Myelopathy: Complications and Pitfalls.

Lee, Dong-Ho / Cho, Sung Tan / Park, Sehan / Hwang, Chang Ju / Cho, Jae Hwan / Kim, Jin Hwan

Neurospine

2023 Volume 20, Issue 2, Page(s) 669–677

Abstract: Objective: This retrospective cohort study has been aimed at evaluating the incidence of complications after vertebral body sliding osteotomy (VBSO) and analyzing some cases. Furthermore, the complications of VBSO were compared with those of anterior ... ...

Abstract	Objective: This retrospective cohort study has been aimed at evaluating the incidence of complications after vertebral body sliding osteotomy (VBSO) and analyzing some cases. Furthermore, the complications of VBSO were compared with those of anterior cervical corpectomy and fusion (ACCF). Methods: This study included 154 patients who underwent VBSO (n = 109) or ACCF (n = 45) for cervical myelopathy and were followed up for > 2 years. Surgical complications, clinical and radiological outcomes were analyzed. Results: The most common surgical complications after VBSO were dysphagia (n = 8, 7.3%) and significant subsidence (n = 6, 5.5%). There were 5 cases of C5 palsy (4.6%), followed by dysphonia (n = 4, 3.7%), implant failure (n = 3, 2.8%), pseudoarthrosis (n = 3, 2.8%), dural tears (n = 2, 1.8%), and reoperation (n = 2, 1.8%). C5 palsy and dysphagia did not require additional treatment and spontaneously resolved. The rates of reoperation (VBSO, 1.8%; ACCF, 11.1%; p = 0.02) and subsidence (VBSO, 5.5%; ACCF, 40%; p < 0.01) were significantly lower in VBSO than in ACCF. VBSO restored more C2-7 lordosis (VBSO, 13.9° ± 7.5°; ACCF, 10.1° ± 8.0°; p = 0.02) and segmental lordosis (VBSO, 15.7° ± 7.1°; ACCF, 6.6° ± 10.2°; p < 0.01) than ACCF. The clinical outcomes did not significantly differ between both groups. Conclusion: VBSO has advantages over ACCF in terms of low rate of surgical complications related to reoperation and significant subsidence. However, dural tears may still occur despite the lessened need for ossified posterior longitudinal ligament lesion manipulation in VBSO; hence, caution is warranted.
Language	English
Publishing date	2023-06-30
Publishing country	Korea (South)
Document type	Journal Article
ZDB-ID	3031654-6
ISSN	2586-6591 ; 2586-6583
ISSN (online)	2586-6591
ISSN	2586-6583
DOI	10.14245/ns.2346320.160
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Article ; Online: Surgical complications and incomplete canal widening of the vertebral body sliding osteotomy to treat cervical myelopathy.

Lee, Dong-Ho / Cho, Sung Tan / Park, Sehan / Hwang, Chang Ju / Cho, Jae Hwan / Kim, Jin Hwan

Journal of neurosurgery. Spine

2023 Volume 39, Issue 4, Page(s) 520–526

Abstract: Objective: Vertebral body sliding osteotomy (VBSO) is a surgical technique that anteriorly translates the vertebral body with compressive lesions and achieves cord decompression through canal widening. However, data on the surgical complications of VBSO ...

Abstract	Objective: Vertebral body sliding osteotomy (VBSO) is a surgical technique that anteriorly translates the vertebral body with compressive lesions and achieves cord decompression through canal widening. However, data on the surgical complications of VBSO are lacking. Furthermore, it has not been known whether VBSO could be a viable alternative in the treatment of cervical myelopathy even when the preoperative canal-occupying ratio (COR) is large, which seems to frequently result in incomplete canal widening. This study aimed to describe the incidence of VBSO-associated surgical complications and to evaluate the incidence and risk factors of incomplete canal widening. Methods: A total of 109 patients who underwent VBSO to treat cervical myelopathy were retrospectively reviewed. Neck pain visual analog scale, Neck Disability Index, Japanese Orthopaedic Association (JOA) scores, and surgical complications were evaluated. For radiological evaluation, C2-7 lordosis, C2-7 sagittal vertical axis, and COR were measured. Patients with a preoperative COR < 50% (n = 60) and those with a COR ≥ 50% (n = 49) were compared and logistic regression analysis was performed to identify factors associated with incomplete canal widening. Results: The most frequent complication in the patients was mild dysphagia (7.3%). Dural tears were observed during posterior longitudinal ligament resection (n = 1) and foraminotomy (n = 1). Two patients underwent reoperation due to radiculopathy from adjacent-segment disease. Incomplete canal widening occurred in 49 patients. According to logistic regression analysis, high preoperative COR was the only factor associated with incomplete canal widening. The amount of canal widening and JOA recovery rate in the COR ≥ 50% group were significantly higher than in the COR < 50% group. Conclusions: Mild dysphagia was the most common complication following VBSO. Although VBSO aims to decrease the complication rate of corpectomy, it was not free of dural tears. Special care would be required during the posterior longitudinal ligament resection. Incomplete canal widening occurred in 45.0% of patients, and high preoperative COR was the only risk factor for incomplete canal widening. However, high preoperative COR would not be a contraindication for VBSO, given that favorable clinical outcomes were presented in the COR ≥ 50% group.
Language	English
Publishing date	2023-06-23
Publishing country	United States
Document type	Journal Article
ZDB-ID	2158643-3
ISSN	1547-5646 ; 1547-5654
ISSN (online)	1547-5646
ISSN	1547-5654
DOI	10.3171/2023.5.SPINE23287
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Article ; Online: Vertebral Body Sliding Osteotomy as a Surgical Strategy for the Treatment of Cervical Myelopathy: Outcomes at Minimum Five years Follow-up.

Lee, Dong-Ho / Park, Sehan / Lee, Choon Sung / Hwang, Chang Ju / Cho, Jae Hwan / Cho, Sung Tan

Spine

2023 Volume 48, Issue 9, Page(s) 600–609

Abstract: Study design: A retrospective cohort study.: Objective: To evaluate the outcomes of vertebral body sliding osteotomy (VBSO) with a minimum follow-up of five years and compare the results with those of anterior cervical discectomy and fusion (ACDF) ... ...

Abstract	Study design: A retrospective cohort study. Objective: To evaluate the outcomes of vertebral body sliding osteotomy (VBSO) with a minimum follow-up of five years and compare the results with those of anterior cervical discectomy and fusion (ACDF) and anterior cervical corpectomy and fusion (ACCF). Summary of background data: VBSO reportedly results in fewer complications, better lordosis restoration, and faster bone union than corpectomy. Although previous studies demonstrate the outcomes of VBSO with follow-up of two years or longer, results in longer term surveillance remain unknown. Methods: This study included 128 patients who underwent VBSO (n=38), ACDF (n=62), or ACCF (n=28) as a treatment for cervical myelopathy and was followed up for five years or more. Fusion, subsidence, C0-2 lordosis, C2-7 lordosis, segmental lordosis, C2-7 sagittal vertical axis, surgical complications, and neck pain visual analog scale, Neck Disability Index, and Japanese Orthopedic Association (JOA) scores were assessed. Comparisons between continuous variables in each group were made using independent sample t tests. For nominal variables, the Fisher exact test or the χ 2 test was used. Paired t test was used to analyze the changes in postoperative values compared with preoperative values. Results: The reoperation rate (0.0%) after VBSO was significantly lower than that after ACCF (14.3%; P =0.028). VBSO had a higher fusion rate at six-month and one-year follow-up, but the fusion rate at five years (97.4%) was not significantly different from that of ACDF (85.5%; P =0.054) and ACCF (85.7%; P =0.077). Segmental lordosis at the five-year follow-up was significantly higher in the VBSO group (16.1°) than in the ACDF (11.9°; P =0.002) and ACCF (6.5°; P <0.001) groups. C2-7 lordosis at five-year follow-up was significantly higher in the VBSO group than in the ACCF group ( P =0.017). Neck pain visual analog scale, Neck Disability Index, and JOA scores and the JOA recovery rate did not show significant intergroup differences during the five-year study period. Conclusions: VBSO showed promising long-term results in terms of low revision rate, fast solid union, and effective segmental lordosis restoration when compared with other anterior reconstruction techniques.
MeSH term(s)	Humans ; Follow-Up Studies ; Lordosis/surgery ; Lordosis/complications ; Retrospective Studies ; Neck Pain/surgery ; Vertebral Body/surgery ; Spondylosis/surgery ; Spinal Cord Diseases/surgery ; Diskectomy/adverse effects ; Osteotomy/adverse effects ; Cervical Vertebrae/diagnostic imaging ; Cervical Vertebrae/surgery ; Spinal Fusion/methods ; Treatment Outcome
Language	English
Publishing date	2023-02-27
Publishing country	United States
Document type	Journal Article
ZDB-ID	752024-4
ISSN	1528-1159 ; 0362-2436
ISSN (online)	1528-1159
ISSN	0362-2436
DOI	10.1097/BRS.0000000000004613
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Article ; Online: Does Posterior Cord Compression From the Ligamentum Flavum Influence Clinical Outcomes After Anterior Cervical Discectomy and Fusion?

Lee, Dong-Ho / Hwang, Chang Ju / Cho, Jae Hwan / Cho, Sung Tan / Nam, Hyun Wook / Park, Sehan

Spine

2023 Volume 48, Issue 21, Page(s) 1526–1534

Abstract: Study design: Retrospective cohort study.: Objective: To clarify whether outcomes of anterior cervical discectomy and fusion (ACDF) differ according to the presence of posterior cord compression from the ligamentum flavum (CCLF).: Summary of ... ...

Abstract	Study design: Retrospective cohort study. Objective: To clarify whether outcomes of anterior cervical discectomy and fusion (ACDF) differ according to the presence of posterior cord compression from the ligamentum flavum (CCLF). Summary of background data: Although ACDF effectively addresses anterior cord compression from disc material and bone spurs, it cannot address posterior compression. Whether ACDF could result in favorable outcomes when CCLF is present remains unclear. Patients and methods: A total of 195 consecutive patients who underwent ACDF and were followed up for >2 years were included. CCLF was graded based on magnetic resonance imaging findings. Patients with CCLF grade 2 were classified as such, whereas patients with CCLF grades 0 to 1 were classified as the no-CCLF group. Patient characteristics, cervical sagittal parameters, neck pain visual analog scale, arm pain visual analog scale, and Japanese Orthopedic Association (JOA) score were assessed. Categorical variables were analyzed using a χ 2 test, whereas continuous variables were analyzed using the Student t test. Multivariable logistic regression analysis was performed to elucidate factors associated with JOA recovery rates of >50%. Results: One hundred sixty-seven patients (85.6%) were included in the no-CCLF group, whereas the remaining 28 patients (14.4%) were included in the CCLF group. Among patients in the CCLF group, 14 patients (50.0%) achieved clinical improvement. JOA score significantly improved in the no-CCLF group after the operation ( P < 0.001), whereas improvement was not appreciated in the CCLF group ( P = 0.642). JOA scores at 3 months ( P = 0.037) and 2 years ( P = 0.001) postoperatively were significantly higher in the no-CCLF group. Furthermore, the JOA recovery rate at 2 years after surgery was significantly higher in the no-CCLF group ( P = 0.042). Logistic regression demonstrated that CCLF was significantly associated with a JOA recovery rate of >50% at 2 years after surgery (odds ratio: 2.719; 95% CI: 1.12, 6.60). Conclusion: ACDF performed for patients with CCLF grade 2 showed inferior JOA score improvement compared with those with CCLF grade 0 or 1. ACDF cannot remove posterior compressive structures, which limits its utility when ligamentum flavum significantly contributes to cord compression.
Language	English
Publishing date	2023-07-31
Publishing country	United States
Document type	Journal Article
ZDB-ID	752024-4
ISSN	1528-1159 ; 0362-2436
ISSN (online)	1528-1159
ISSN	0362-2436
DOI	10.1097/BRS.0000000000004786
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Article ; Online: Comparison of the outcomes between two different target points after open wedge high tibial osteotomy: The Fujisawa point versus the lateral tibial spine.

Lee, Sung-Sahn / Lee, Hyun Il / Cho, Sung Tan / Cho, Jin-Ho

The Knee

2020 Volume 27, Issue 3, Page(s) 915–922

Abstract: Background: The purpose of this study was to compare the clinical, radiographic and arthroscopic outcomes after open wedge high tibial osteotomy (OWHTO) aiming either at the Fujisawa point (group F) or the lateral tibial spine (LTS, group L).: Methods! ...

Abstract	Background: The purpose of this study was to compare the clinical, radiographic and arthroscopic outcomes after open wedge high tibial osteotomy (OWHTO) aiming either at the Fujisawa point (group F) or the lateral tibial spine (LTS, group L). Methods: Between January 2011 and May 2017, 89 cases underwent implant removal procedures with second-look arthroscopy at 19.8 months after OWHTO with first-look arthroscopy. Among them, 24 and 65 cases were enrolled in groups F and L, respectively. Outcomes included clinical (evaluated using the Western Ontario and McMaster Universities Osteoarthritis index and the International Knee Documentation Committee subjective score), radiographic (observation of the mechanical axis (MA) and tibial slope), and arthroscopic (including chondral lesions of the medial femoral condyle (MFC), trochlea, and patella scored according to the International Cartilage Repair Society grading) measures, investigated at index surgery and implant removal surgery. Outcomes were compared between two groups. Results: Preoperative clinical characteristics and postoperative outcomes were similar between both groups. The mean postoperative MA was significantly lower in group F compared with group L (-3.9° vs. -1.6°, respectively; P < 0.001). Similar MFC cartilage grading changes from index surgery to second look surgery were shown; however, further progression of patellofemoral grading was shown in group F. Conclusions: OWHTO aimed at the LTS has similar clinical outcomes to Fujisawa point. Surgery aimed at the LTS was slightly less corrected. Targeting the LTS could be an option after consideration of joint geometry and patellofemoral joint problems.
MeSH term(s)	Arthroscopy ; Bone Malalignment/surgery ; Cartilage, Articular/pathology ; Case-Control Studies ; Female ; Humans ; Knee Joint/diagnostic imaging ; Male ; Middle Aged ; Osteoarthritis, Knee/surgery ; Osteotomy/methods ; Patient Reported Outcome Measures ; Radiography ; Retrospective Studies ; Second-Look Surgery ; Tibia/surgery
Language	English
Publishing date	2020-02-06
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	1200476-5
ISSN	1873-5800 ; 0968-0160
ISSN (online)	1873-5800
ISSN	0968-0160
DOI	10.1016/j.knee.2020.01.007
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