Jaeyoung Kim, Max Sadlowski, David Vier, Veerabhadra Reddy, Christian Royer, James Brodsky, Jacob Zide
{"title":"Incidence and Factors Associated With Nonunion following Naviculocuneiform Joint Arthrodesis.","authors":"Jaeyoung Kim, Max Sadlowski, David Vier, Veerabhadra Reddy, Christian Royer, James Brodsky, Jacob Zide","doi":"10.1177/10711007251316556","DOIUrl":"https://doi.org/10.1177/10711007251316556","url":null,"abstract":"<p><strong>Background: </strong>Nonunion following naviculocuneiform (NC) joint arthrodesis is a well-recognized complication. Most studies reporting nonunion rates involve a limited number of cases or focus on a single disease entity. Moreover, there is variation between studies with regard to the number of articular facets included in the arthrodesis as well as the fixation construct used, with no clear evidence indicating how these factors influence union. This study, using the largest cohort to date, aims to investigate the nonunion rate following NC joint arthrodesis and to identify demographic and surgical factors associated with nonunion.</p><p><strong>Methods: </strong>One hundred ten feet in 100 patients who underwent NC joint arthrodesis between 2016 and 2023 at a single institution were retrospectively identified. The indications for surgery included osteoarthritis (n = 89), deformity (n = 10, flatfoot or cavus), and rheumatoid arthritis (n = 11). Charcot arthropathy was excluded. Nonunions were defined by radiographic review and were further categorized as symptomatic or asymptomatic. Demographic and surgical factors, including isolated medial NC facet vs multiple NC facet arthrodesis, fixation construct, concurrent arthrodesis of other joints, and type of bone graft used, were included in the regression analysis to determine their association with nonunion.</p><p><strong>Results: </strong>The overall nonunion rate was 27.3% (30/110 cases), with 15.5% (17 cases) presenting as symptomatic nonunions. There were no significant differences in the nonunion rates among different indications for NC arthrodesis (<i>P</i> = .9404). A statistically significant difference in nonunion rates was observed between patients undergoing isolated medial facet arthrodesis (38.2%) and those undergoing multiple facet arthrodesis (16.4%, <i>P</i> = .0102). After performing multivariate analysis adjusted for potential confounders, age (OR 1.08, 95% CI: 1.0-1.16, <i>P</i> = .0456), diabetes (OR 12.70, 95% CI: 1.24-130.3, <i>P</i> = .0324), and isolated medial NC facet arthrodesis (OR 17.48, 95% CI: 3.23-94.54, <i>P</i> = .0009) were significantly associated with nonunion. No significant association with nonunion was identified based on the type of bone graft, fixation construct, or whether concurrent arthrodesis of adjacent foot joints was performed.</p><p><strong>Conclusion: </strong>This study demonstrates a significant rate of nonunion following NC joint arthrodesis, exceeding that previously reported. We found that the rate of nonunion significantly increased in arthrodeses involving only the medial NC facet as compared to those including multiple NC facets.</p>","PeriodicalId":94011,"journal":{"name":"Foot & ankle international","volume":" ","pages":"10711007251316556"},"PeriodicalIF":0.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143392780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimal Target Angle in Oblique Diaphyseal Osteotomy of the Fifth Metatarsal for Symptomatic Bunionette: A Retrospective Analysis.","authors":"Yasunari Ikuta, Tomoyuki Nakasa, Shingo Kawabata, Saori Ishibashi, Satoru Sakurai, Dan Moriwaki, Nobuo Adachi","doi":"10.1177/10711007251315112","DOIUrl":"https://doi.org/10.1177/10711007251315112","url":null,"abstract":"<p><strong>Background: </strong>The effects of the osteotomy angle during oblique diaphyseal osteotomy of the fifth metatarsal on the clinical outcomes remain unclear. This study aimed to clarify the clinical and radiographic outcomes of this procedure, with a focus on the intraoperative osteotomy angle.</p><p><strong>Methods: </strong>This retrospective study included 30 female patients who underwent oblique diaphyseal osteotomy of the fifth metatarsal with single-screw fixation for symptomatic bunionette (36 feet, mean age, 68.3 years; mean follow-up, 22.5 months). The angles between the osteotomy line and the fifth metatarsal and screw insertion axes were measured as the osteotomy and screw insertion angles, respectively. Receiver operating characteristic curve analysis was performed to determine the cutoff value for the osteotomy angle. The metatarsophalangeal angle (MTPA) and intermetatarsal angle (IMA) between the fourth and fifth metatarsals were measured on dorsoplantar images. The Japanese Society for Surgery of the Foot (JSSF) scale was scored at the preoperative and final follow-up visits.</p><p><strong>Results: </strong>Screw backout was identified in 14 feet (38.9 %). The osteotomy and screw insertion angles were 35.9 and 62.2 degrees in the screw backout group and 24.6 and 71.2 degrees in the control group, respectively (<i>P</i> < .05). The osteotomy angle >31.1 degrees was a cutoff value of postoperative screw backout (sensitivity, 0.79; specificity, 0.96; area under the curve, 0.92). The mean MTPA and IMA were 21.0 and 12.3 degrees preoperatively and 9.3 and 8.2 degrees at the final follow-up, respectively. The mean JSSF scale score improved significantly from 59.9 to 95.3.</p><p><strong>Conclusion: </strong>The osteotomy angle was greater and the screw was inserted more shallowly against the osteotomy line in the screw backout group compared with the control group. The optimal target angle of the osteotomy line to the fifth metatarsal axis should be <30 degrees intraoperatively for single-screw fixation.</p>","PeriodicalId":94011,"journal":{"name":"Foot & ankle international","volume":" ","pages":"10711007251315112"},"PeriodicalIF":0.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143392782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luca Tanel, Alexis Nogier, Floris Van Rooij, Chinyelum Agu, Mo Saffarini, Matthieu Lalevee, Philippe Beaudet
{"title":"Does Decompressive Chevron Osteotomy Decrease Subchondral Bone Density of the First Metatarsophalangeal Joint in Hallux Rigidus?","authors":"Luca Tanel, Alexis Nogier, Floris Van Rooij, Chinyelum Agu, Mo Saffarini, Matthieu Lalevee, Philippe Beaudet","doi":"10.1177/10711007241300161","DOIUrl":"10.1177/10711007241300161","url":null,"abstract":"<p><strong>Background: </strong>To investigate the impact of decompressive chevron osteotomy on subchondral bone density at the first metatarsophalangeal (MTP) joint.</p><p><strong>Methods: </strong>Sixteen feet (12 patients) with hallux rigidus underwent decompressive chevron osteotomy. Standing cone beam 3D computed tomography (3DCT) were assessed preoperatively and at 4-month follow-up, and clinical data were collected. Radiologic measurements, including bone density using Hounsfield units (HU), were conducted. Statistical analyses were performed to evaluate changes and correlations.</p><p><strong>Results: </strong>Postoperative bone density significantly decreased in proximal (Pre, 650.9 ± 149.1; Post, 312.4 ± 115.9; <i>P</i> < .001) and distal (Pre, 910.4 ± 143.3; Post, 639.0 ± 167.1; <i>P</i> < .001) components of the first MTP joint and the first tarsometatarsal (TMT) (Pre, 762.9 ± 166.6; Post, 611.5 ± 165.9; <i>P</i> < .001) joint. No significant difference was measured at the tibiotalar joint (Pre, 497.5 ± 143.6; Post, 534.3 ± 130.7; <i>P</i> = .065). Length of the first metatarsal (Pre, 60.4 ± 3.4; Post, 54.3 ± 3.0; <i>P</i> < .001) and metatarsal protrusion index (MPI) (Pre, -0.9 ± 3.0; Post, -9.0 ± 3.6; <i>P</i> < .001) significantly decreased postoperatively. Clinical assessments showed significant improvements in pain on the visual analog scale (-5.3 ± 1.9).</p><p><strong>Conclusion: </strong>Decompressive chevron osteotomy leads to a significant decrease in subchondral bone density of the first MTP joint. A decrease in bone density occurs also in the first TMT joint.</p><p><strong>Level of evidence: </strong>Level IV, radiographic study.</p>","PeriodicalId":94011,"journal":{"name":"Foot & ankle international","volume":" ","pages":"227-235"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparative Retrospective Study of PLLA and PLLA/HA Pins for Osteochondral Fragment Fixation in Osteochondral Lesion of the Talus.","authors":"Dan Moriwaki, Tomoyuki Nakasa, Yasunari Ikuta, Shingo Kawabata, Saori Ishibashi, Satoru Sakurai, Nobuo Adachi","doi":"10.1177/10711007241303757","DOIUrl":"10.1177/10711007241303757","url":null,"abstract":"<p><strong>Background: </strong>Postoperative osteolysis may be observed around poly-l-lactic acid (PLLA) pins in osteochondral fragments fixation for an osteochondral lesion of the talus (OLT). Hydroxyapatite (HA) improves biocompatibility, osteoconductivity, and mechanical strength when added to PLLA. This study aimed to compare the characteristics of osteolysis and clinical outcomes of fixation for OLT with PLLA pins vs PLLA/HA pins.</p><p><strong>Methods: </strong>Thirty-one ankles undergoing fixation with bioabsorbable pins for OLT were included. Fourteen ankles were fixed with PLLA/HA pins and 17 ankles with PLLA pins. Magnetic resonance imaging (MRI) was taken pre- and postoperatively at 1 year. Osteolysis around pins, bone marrow edema (BME) in the talus, and pin insertion angle on MRI, the American Orthopaedic Foot & Ankle Society (AOFAS) score, and the visual analog scale (VAS) pain score were compared between the 2 groups pre- and postoperatively at 1 year. AOFAS score at the final follow-up was also compared between the 2 groups.</p><p><strong>Results: </strong>The osteolysis area was significantly smaller in the PLLA/HA group in both coronal and sagittal planes on MRIs obtained 1 year postoperatively. There were no significant differences in osteolysis frequency, BME area, AOFAS score, and VAS pain score. Lower pin insertion angles measured on either sagittal or coronal planes were generally associated with greater amounts of osteolysis.</p><p><strong>Conclusion: </strong>We did not find superiority using PLLA/HA pins compared with PLLA pins to fixate talar osteochondral fragments. However, PLLA/HA pin use was associated with less osteolysis around pins compared with PLLA pins.</p>","PeriodicalId":94011,"journal":{"name":"Foot & ankle international","volume":" ","pages":"175-181"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142866465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Minimum 24-Month Outcomes of Minimally Invasive Paratenon Protection Repair vs Open Giftbox Repair of Ruptured Achilles Tendon.","authors":"Xujie Yan, Jixian Yue, Xinqi Zeng, Tonglong Xu, Yuxuan Zhang, Wencheng Wang, Gang Zhao, Jingyi Mi, Yongjun Rui, Shen Liu, Jian Tian","doi":"10.1177/10711007241308913","DOIUrl":"10.1177/10711007241308913","url":null,"abstract":"<p><strong>Background: </strong>The paratenon has been shown to promote Achilles tendon healing, but the evidence supporting the role of paratenon protection technique in Achilles tendon repair is sparse. We retrospectively assessed the results of a paratenon-sparing repair technique vs an open giftbox repair of Achilles tendon ruptures.</p><p><strong>Methods: </strong>Patients with Achilles tendon rupture who underwent surgical treatment at our hospital between January 2015 and August 2021 were retrospectively reviewed. Among them, 61 patients underwent surgical repair using the minimally invasive paratenon protection technique (MI group) and 67 patients using the open repair giftbox technique (OR group). The postoperative rehabilitation protocol was identical in both groups. The operation time, complication rate, length and cross-sectional area (CSA) of Achilles tendon, shear wave elastography (SWE), CSA of the calf triceps muscle, isokinetic strength, Achilles tendon Total Rupture Score (ATRS), and the Victorian Institute of Sports Assessment-Achilles (VISA-A) score were compared between the 2 groups.</p><p><strong>Results: </strong>The average follow-up time was 40.0 ± 10.2 months. The operation time and complication rate in the MI group were significantly lower than in the OR group (<i>P</i> < .001, <i>P</i> = .031). The ATRS score (<i>P</i> = .015), VISA-A score (<i>P</i> = .002), isokinetic strength (60 degrees/second: <i>P</i> = .006; 180 degrees/second: <i>P</i> = .036), SWE values (<i>P</i> = .007), and CSA of Achilles tendon (<i>P</i> = .043) in the MI group were significantly higher than the OR group. SWE values were significantly positively correlated with the ATRS score (<i>r</i> = 0.294, <i>P</i> < .001) and the VISA-A score (<i>r</i> = 0.304, <i>P</i> < .001). And a significant negative correlation was found between Achilles tendon extension length and peak torque (60 degrees/second: <i>r</i> = -0.309, <i>P</i> < .001; 180 degrees/second: <i>r</i> = -0.218, <i>P</i> = .013).</p><p><strong>Conclusion: </strong>Compared with the open repair giftbox technique, the minimally invasive paratenon protection technique was associated with likely marginally clinically significant improved clinical outcome scores, greater isokinetic strength, and better mechanical properties of the Achilles tendon.</p>","PeriodicalId":94011,"journal":{"name":"Foot & ankle international","volume":" ","pages":"200-209"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143018879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Enrique Fernández-Rojas, Víctor Araya-Bonilla, Emilio Barra-Dinamarca, Juan Pastor-Villablanca, Ahmed Mortada-Mahmoud, Cristóbal Alvarado-Livacic, Jesús Vilá-Rico
{"title":"New Classification System for Proximal Fifth Metatarsal Fractures: Intraobserver and Interobserver Reliability Assessment.","authors":"Enrique Fernández-Rojas, Víctor Araya-Bonilla, Emilio Barra-Dinamarca, Juan Pastor-Villablanca, Ahmed Mortada-Mahmoud, Cristóbal Alvarado-Livacic, Jesús Vilá-Rico","doi":"10.1177/10711007241303756","DOIUrl":"10.1177/10711007241303756","url":null,"abstract":"<p><strong>Background: </strong>The most commonly used classification for proximal fifth metatarsal fractures has not shown good reproducibility. The aim of this study was to evaluate the intraobserver and interobserver agreement of a new classification system for such fractures.</p><p><strong>Methods: </strong>The study involved the development of a novel classification system that categorized these fractures into 2 main types and 2 subtypes. This cross-sectional study included a total of 52 cases that were retrospectively collected to assess the reliability of this system. These cases were then evaluated by 3 independent foot and ankle surgeons who classified the fractures based on the newly established classification system. After 10 months, the same evaluators classified the fractures again. The level of agreement among the evaluators, both internally and externally, was assessed using the kappa coefficient, following the criteria established by Landis and Koch. This framework categorizes agreement levels as slight (0.00-0.20), fair (0.21-0.40), moderate (0.41-0.60), substantial (0.61-0.80), or almost perfect (0.81-1.00).</p><p><strong>Results: </strong>Fifty-two fractures were detected, and 312 evaluations were carried out. The interobserver agreement was substantial when assessing the 2 main types, with a κ value of 0.73, and remained substantial even when considering the subtypes, with a κ value of 0.67. Similarly, the intraobserver agreement demonstrated substantial outcomes when evaluating the 2 main types, with a κ value 0.79. It maintained its significance when including the subtypes, with a κ value 0.77.</p><p><strong>Conclusion: </strong>Lawrence and Botte's classification identifies 3 primary zones and exhibits moderate interobserver agreement. In contrast, the newly proposed system focuses on only 2 main zones and shows better interobserver agreement. The present study introduces a more precise and reproducible framework that reveals consistency among various observers, including the same observer. This framework may be beneficial for biomedical research as it enhances the ability to compare results across different studies.</p>","PeriodicalId":94011,"journal":{"name":"Foot & ankle international","volume":" ","pages":"246-254"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142916712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Single-Incision Peroneal Tendon Repair With Concomitant Modified Dwyer Calcaneal Osteotomy: Report of 15 Cases With Plate Fixation.","authors":"Amol Saxena, Maggie Fournier","doi":"10.1177/10711007241303749","DOIUrl":"10.1177/10711007241303749","url":null,"abstract":"<p><strong>Background: </strong>Addressing hindfoot varus via calcaneal osteotomy with simultaneous peroneal tendon repair from a single incision has not been thoroughly assessed. Some concerns with one incision are wound complications, nerve damage, and symptomatic hardware.</p><p><strong>Methods: </strong>Patients operated on by one surgeon May 2012 to January 2022 were retrospectively reviewed with minimum 2-year follow-up via in-person visit, telephone, and chart review. Patients with peroneal tendon repair in conjunction with a modified Dwyer (with lateral shift) osteotomy fixated with a laterally applied locking plate were included. Those whose osteotomies were fixated with posteriorly applied screws were excluded.</p><p><strong>Results: </strong>Fifteen patients were assessed, 13 males and 2 females, average age 56.9 ± 9.9 years. There were no wound complications or nerve injuries. One patient elected to have plate removal. There was 1 deep vein thrombosis. Return to activity including sports was 5.3 ± 1.3 months. On average, postoperative Roles and Maudsley and AOFAS hindfoot scores improved to \"significant from pre-treatment\" 11 with \"excellent\" results.</p><p><strong>Conclusion: </strong>Peroneal tendon repair can be performed through the same incision as a modified Dwyer calcaneal osteotomy to address hindfoot varus deformity. In this series, there were no wound or nerve issues.</p>","PeriodicalId":94011,"journal":{"name":"Foot & ankle international","volume":" ","pages":"168-174"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142866622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nicolas P Kuttner, Aaron R Owen, Daniel B Ryssman, Harold B Kitaoka, Norman S Turner
{"title":"Association of Complication Rates and Severe Obesity in Patients Undergoing Ankle Arthrodesis.","authors":"Nicolas P Kuttner, Aaron R Owen, Daniel B Ryssman, Harold B Kitaoka, Norman S Turner","doi":"10.1177/10711007241300327","DOIUrl":"10.1177/10711007241300327","url":null,"abstract":"<p><strong>Background: </strong>Tibiotalar arthrodesis (TTA) is a common operation for end-stage ankle arthritis. Elevated body mass index (BMI) is believed to contribute to complications following TTA. Previous studies involved national registries or small, underpowered cohorts. This study aimed to determine the effects of elevated BMI on nonunion and complication rates following TTA with a large cohort from a single academic institution.</p><p><strong>Methods: </strong>A retrospective study identified 514 patients (527 ankles) who underwent primary TTA from 2005-2017. Mean age was 60 years. Patients were stratified by BMI according to the World Health Organization classification. A reference group of 203 patients (208 ankles) included normal weight or mildly overweight patients (BMI 18.5 to <30). Ankle radiographs were evaluated to determine union or nonunion. Other outcomes included revision TTA, reoperations, subsequent adjacent joint arthrodesis, infection, and readmission. Data were analyzed using Pearson χ<sup>2</sup> and odds ratios for categorical variables. Analysis of variance and Kaplan-Meier estimation assessed continuous variables and time-to-event outcomes, respectively. Mean follow-up was 34.3 months.</p><p><strong>Results: </strong>Obesity class III patients had elevated risk of complications compared with normal weight patients including nonunion (odds ratio [OR] 3.96, <i>P</i> = .002), revision (OR 3.69, <i>P</i> = .03), superficial infection (OR 9.36, <i>P</i> = .002), and readmission (OR 10.90, <i>P</i> = .01). Superficial infection rates were elevated in class I (OR 6.36, <i>P</i> = .007) and readmissions in class II (OR 9.98, <i>P</i> = .01). No differences were found in reoperation (<i>P</i> = .448), symptomatic implant removal (<i>P</i> = .805), adjacent joint arthrodesis (<i>P</i> = .353), or deep infection (<i>P</i> = .507) rates.</p><p><strong>Discussion: </strong>In this retrospective review after TTA, increased rates of nonunion, revision, superficial infection, and readmission were found in obesity class III patients, compared with the reference group of normal weight or mildly overweight patients. Superficial infection rates were likewise relatively elevated in class I and readmission rates in class II patients.</p>","PeriodicalId":94011,"journal":{"name":"Foot & ankle international","volume":" ","pages":"210-216"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142752649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}