scholarly journals Hallux Rigidus: Prevalence and Risk Factors

2021 ◽  
Author(s):  
Yoshiyuki Senga ◽  
Akinobu Nishimura ◽  
Naoya Ito ◽  
Yukie Kitaura ◽  
Akihiro Sudo
Keyword(s):  
Risk Factors ◽  
Multivariate Analysis ◽  
Univariate Analysis ◽  
Metatarsophalangeal Joint ◽  
The Elderly ◽  
Hallux Rigidus ◽  
Degenerative Arthritis ◽  
First Metatarsophalangeal Joint ◽  
Independent Risk Factors ◽  
Overall Ratio

Abstract Background: Hallux rigidus (HR) is a common degenerative arthritis of the first metatarsophalangeal joint. However, the epidemiology and risk factors of this pathology have yet to be clarified.Methods: This cohort study estimated the prevalence of and clarified risk factors for radiographic HR in individuals over 50 years old.Results: The prevalence of HR was 26.7% (161/604). Rates of grade 0, 1, 2, and 3 HR according to the Hattrup and Johnson classification were 73.3% (443/604), 16.4% (99/604), 8.0% (48/604), and 2.3% (14/604), respectively. Overall ratio of symptomatic HR was 8.1%. Univariate analysis revealed knee osteoarthritis (KOA), gout attack (GA), and hallux valgus (HV) as significantly associated with HR. The same factors were confirmed as independent risk factors for HR in multivariate analysis. All parameters were significantly associated with HR. Odds ratios of KOA, HV, and GA for HR were 1.73, 3.98, and 3.86, respectively. The presence or absence of KOA was significantly associated with severity of HR.Conclusion: Our study revealed the prevalence of HR in the elderly (≥50 years) was 26.7%, and KOA, HV, and GA were independent risk factors for HR. KOA was associated with severity of HR.

scholarly journals Prevalence of and risk factors for hallux rigidus: a cross-sectional study in Japan

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Yoshiyuki Senga ◽  
Akinobu Nishimura ◽  
Naoya Ito ◽  
Yukie Kitaura ◽  
Akihiro Sudo
Keyword(s):  
Risk Factors ◽  
Univariate Analysis ◽  
Metatarsophalangeal Joint ◽  
The Elderly ◽  
Cross Sectional Study ◽  
Hallux Rigidus ◽  
Trend Test ◽  
Cross Sectional ◽  
First Metatarsophalangeal Joint ◽  
Independent Risk Factors

Abstract Background Hallux rigidus (HR) is a common osteoarthritis of the first metatarsophalangeal joint. However, the epidemiology and risk factors of this pathology have yet to be clarified. Methods We have been conducting cohort studies among individuals over 50 years old every 2 years since 1997. This study analyzed data from the 7th to 10th checkups in 2009, 2011, 2013, and 2015. We investigated the prevalence of HR and its risk factors in a total of 604 individuals (mean age, 67.1 ± 6.4 years; 208 men, 396 women). Radiographic HR was defined as Hattrup and Johnson classification grade 1 or higher. Knee osteoarthritis (KOA) was scored according to the Kellgren-Lawrence grading system. Radiographic KOA was defined as grade 2 or higher. Cases with a hallux valgus (HV) angle of 20° or higher were defined as showing HV. Statistical analyses were performed using the Kruskal-Wallis test, Fisher’s exact test, logistic regression modeling, and the Cochran-Armitage trend test. All p-values presented are two-sided and values of p < .05 were considered statistically significant. Results The prevalence of HR was 26.7% (161/604). Rates of grade 0, 1, 2, and 3 HR according to the Hattrup and Johnson classification were 73.3% (443/604), 16.4% (99/604), 8.0% (48/604), and 2.3% (14/604), respectively. Overall ratio of symptomatic HR was 8.1%. Univariate analysis revealed KOA, gout attack (GA), and HV as significantly associated with HR. The same factors were confirmed as independent risk factors for HR in multivariate analysis. All parameters were significantly associated with HR. Odds ratios of KOA, HV, and GA for HR were 1.73, 3.98, and 3.86, respectively. The presence or absence of KOA was significantly associated with severity of HR. Conclusions This study revealed that the prevalence of HR in the elderly (≥50 years) was 26.7%. KOA, HV, and GA were independent risk factors for HR. KOA was associated with severity of HR.

scholarly journals The Prevalence of Hallux Rigidus and its Risk Factors

2019 ◽  
Vol 4 (4) ◽  
pp. 2473011419S0037
Author(s):  
Yoshiyuki Senga ◽  
Akinobu Nishimura ◽  
Akihiro Sudo
Keyword(s):  
Risk Factors ◽  
Univariate Analysis ◽  
Population Sample ◽  
Proximal Phalanx ◽  
The Elderly ◽  
Hallux Rigidus ◽  
Categorical Variables ◽  
First Metatarsophalangeal Joint ◽  
P Values ◽  
Independent Risk Factors

Category: Midfoot/Forefoot Introduction/Purpose: Hallux rigidus (HR) is known as osteoarthritis of the first metatarsophalangeal joint (MPJ). The radiographical findings of HR are characterized by joint space narrowing, osteophytic lipping of the metatarsal head and proximal phalanx and sesamoid hypertrophy. HR is not so rare in daily medical practice, but its prevalence and risk factors are not completely understood. The purpose of this cross-sectional study, using a population-sample from Japan, is to investigate the prevalence of HR and its risk factors among Japanese community dwellers. Methods: In this study, we analyzed the cohort studies in 2009, 2011, 2013 and 2015 covering the elderly (=50 years). We excluded the participants with hallux valgus (HV) because it is difficult to distinguish HR from HV completely. Knee osteoarthritis (KOA) was scored according to the Kellgren-Lawrence grading system and was defined as grade=2. HR was scored according to the Hattrup and Johnson classification and was defined as grade=1. Continuous and categorical variables were compared using the t-test and chi-square test, respectively. The logistic regression model was used to examine the relationship between predictor variables and HR. The Cochran-Armitage trend test was used to examine the relationships between the presence or absence of HR and the severity of KOA in a linear trend. All p values presented are two-sided and p values < 0.05 were considered statistically significant. Results: A total of 416 (171 men, 245 women) participants fulfilled this study criterion. The prevalence of HR was 17.8%. The rate of grade0, grade1, grade2, and grade3 of HR were 82.2%, 10.1%, 6.7%, and 0.96%, respectively. Univariate analysis revealed age (=65), KOA, and Gout Attack (GA) were significantly associated with HR (Table 1). In addition, they were confirmed as independent risk factors of HR in the multivariate analysis. All parameters were significantly associated with HR. The odds ratio of age, KOA, and GA were 2.46, 1.83, and 4.87, respectively (p <0.05). KOA severity is significantly associated with the presence or absence of HR (p <0.05). Conclusion: While previous reports have demonstrated a higher prevalence of HR (27.2-44.4%), HV was not excluded in that study. To achieve the accurate evaluation, we examined the epidemiology and prevalence of HR among participants without HV. HR prevalence in the elderly (=50 years) was 17.8%. Although multifactorial risk factors have been proposed in the literature, our study revealed that age (=65), KOA, and GA were the independent risk factors for HR. KOA severity was associated with the presence or absence of HR.

scholarly journals Risk Factors for Severe 30-d Complications After Minimally Invasive Radical Cystectomy With Ileal Conduit

2020 ◽  
Author(s):  
Ming Xiao ◽  
Zhaohui Zhong ◽  
Jiannan Ren ◽  
Wei Xiong
Keyword(s):  
Risk Factors ◽  
Multivariate Analysis ◽  
Blood Loss ◽  
Minimally Invasive ◽  
Radical Cystectomy ◽  
Ileal Conduit ◽  
Univariate Analysis ◽  
Comprehensive Complication Index ◽  
Estimated Blood Loss ◽  
Independent Risk Factors

Abstract Background: To investigate the risk factors for severe complications within 30 days in patients receiving minimally invasive radical cystectomy with ileal conduit(MIRCIC).Methods: 270 consecutive patients who underwent MIRCIC between January 1, 2013 and August 1, 2020 were included. All complications were graded according to the Clavien-Dindo classification(CDC). The comprehensive complication index(CCI) for all complications in each patient was calculated. CDC ≥ Ⅲ or CCI > 33.7 were considered to be severe complications. Univariate and multivariate analysis were conducted by SPSS26.Results: A total of 691 complications were collected from 236 patients and the corresponding overall complications rate was 87.41% (236/270). Patients with CDC ≥ Ⅲ accounted for 23.70% and the incidence of CCI > 33.7 was 22.96%. For the highest CDC grade ≥ Ⅲ, in univariate analysis, the following seven variants were enrolled in a multivariate analysis: BMI (P=0.010), baseline albumin(P=0.065), pT (P=0.082), pN (P=0.026), pTNM (P=0.016), intraoperative blood transfusion (P=0.031), estimated blood loss (P=0.001). In multivariate analysis, BMI ≥ 30kg/m2 (P=0.012) and estimated blood loss ≥ 400ml (P=0.005) were the independent risk factors of CDC ≥ Ⅲ. Hydronephrosis (P=0.050), BMI (P=0.006), pT (P=0.004), pN (P=0.019), pTNM (P=0.000), operative time (P=0.030), estimated blood loss (P=0.001) were the relevant factors in CCI > 33.7. However, BMI ≥ 30kg/m2 (P=0.004) and estimated blood loss (P=0.002) were the independent risk factors of CCI > 33.7.Conclusion: BMI ≥ 30kg/m2 and estimated blood loss ≥ 400ml were found to be independent predictors of 30-d severe complications (CDC ≥ Ⅲ or CCI > 33.7) in patients who underwent MIRCIC.

scholarly journals Risk factors for baclofen pump infection in children: a multivariate analysis

2016 ◽  
Vol 17 (6) ◽  
pp. 756-762 ◽  
Author(s):  
Heather S. Spader ◽  
Robert J. Bollo ◽  
Christian A. Bowers ◽  
Jay Riva-Cambrin
Keyword(s):  
Risk Factors ◽  
Multivariate Analysis ◽  
Potential Risk ◽  
Univariate Analysis ◽  
Wound Dehiscence ◽  
Young Age ◽  
Csf Leak ◽  
Pump Placement ◽  
Potential Risk Factors ◽  
Independent Risk Factors

OBJECTIVE Intrathecal baclofen infusion systems to manage severe spasticity and dystonia are associated with higher infection rates in children than in adults. Factors unique to this population, such as poor nutrition and physical limitations for pump placement, have been hypothesized as the reasons for this disparity. The authors assessed potential risk factors for infection in a multivariate analysis. METHODS Patients who underwent implantation of a programmable pump and intrathecal catheter for baclofen infusion at a single center between January 1, 2000, and March 1, 2012, were identified in this retrospective cohort study. The primary end point was infection. Potential risk factors investigated included preoperative (i.e., demographics, body mass index [BMI], gastrostomy tube, tracheostomy, previous spinal fusion), intraoperative (i.e., surgeon, antibiotics, pump size, catheter location), and postoperative (i.e., wound dehiscence, CSF leak, and number of revisions) factors. Univariate analysis was performed, and a multivariate logistic regression model was created to identify independent risk factors for infection. RESULTS A total of 254 patients were evaluated. The overall infection rate was 9.8%. Univariate analysis identified young age, shorter height, lower weight, dehiscence, CSF leak, and number of revisions within 6 months of pump placement as significantly associated with infection. Multivariate analysis identified young age, dehiscence, and number of revisions as independent risk factors for infection. CONCLUSIONS Young age, wound dehiscence, and number of revisions were independent risk factors for infection in this pediatric cohort. A low BMI and the presence of either a gastrostomy or tracheostomy were not associated with infection and may not be contraindications for this procedure.

scholarly journals Risk factors for hydrocephalus following fourth ventricle tumor surgery: A retrospective analysis of 121 patients

PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0241853
Author(s):  
Tengyun Chen ◽  
Yanming Ren ◽  
Chenghong Wang ◽  
Bowen Huang ◽  
Zhigang Lan ◽  
...  
Keyword(s):  
Risk Factors ◽  
Multivariate Analysis ◽  
Retrospective Analysis ◽  
Fourth Ventricle ◽  
Univariate Analysis ◽  
Tumor Resection ◽  
Tumor Location ◽  
Subtotal Resection ◽  
Independent Risk Factors ◽  
Postoperative Hydrocephalus

Background and aim Most patients who present with a fourth ventricle tumor have concurrent hydrocephalus, and some demonstrate persistent hydrocephalus after tumor resection. There is still no consensus on the management of hydrocephalus in patients with fourth ventricle tumor after surgery. The purpose of this study was to identify the factors that predispose to postoperative hydrocephalus and the need for a postoperative cerebrospinal fluid (CSF) diversion procedure. Materials and methods We performed a retrospective analysis of patients who underwent surgery of the fourth ventricle tumor between January 2013 and December 2018 at the Department of Neurosurgery in West China Hospital of Sichuan University. The characteristics of patients and the tumor location, tumor size, tumor histology, and preventive external ventricular drainage (EVD) that were potentially correlated with CSF circulation were evaluated in univariate and multivariate analysis. Results A total of 121 patients were enrolled in our study; 16 (12.9%) patients underwent postoperative CSF drainage. Univariate analysis revealed that superior extension (p = 0.004), preoperative hydrocephalus (p<0.001), and subtotal resection (p<0.001) were significantly associated with postoperative hydrocephalus. Multivariate analysis revealed that superior extension (p = 0.013; OR = 44.761; 95% CI 2.235–896.310) and subtotal resection (p = 0.005; OR = 0.087; 95% CI 0.016–0.473) were independent risk factors for postoperative hydrocephalus after resection of fourth ventricle tumor. Conclusion Superior tumor extension (into the aqueduct) and failed total resection of tumor were identified as independent risk factors for postoperative hydrocephalus in patients with fourth ventricle tumor.

Identifying patients with CKD risk at the time of nephrectomy: When to initiate nephrology consult

2021 ◽  
pp. 239936932110319
Author(s):  
Yihe Yang ◽  
Zachary Kozel ◽  
Purva Sharma ◽  
Oksana Yaskiv ◽  
Jose Torres ◽  
...  
Keyword(s):  
Risk Factors ◽  
Multivariate Analysis ◽  
Radical Nephrectomy ◽  
Mixed Model ◽  
Linear Mixed Model ◽  
Interstitial Fibrosis ◽  
Kidney Neoplasm ◽  
Tubular Atrophy ◽  
Independent Risk Factors

Introduction: The prevalence of chronic kidney disease (CKD) is high among kidney neoplasm patients because of the overlapping risk factors. Our purpose is to identify kidney cancer survivors with higher CKD risk. Methods: We studied a retrospective cohort of 361 kidney tumor patients with partial or radical nephrectomy. Linear mixed model was performed. Results: Of patients with follow-up >3 months, 84% were identified retrospectively to fulfill criteria for CKD diagnosis, although CKD was documented in only 15%. Urinalysis was performed in 205 (57%) patients at the time of nephrectomy. Multivariate analysis showed interstitial fibrosis and tubular atrophy (IFTA) >25% ( p = 0.005), severe arteriolar sclerosis ( p = 0.013), female gender ( p = 0.024), older age ( p = 0.012), BMI ⩾ 25 kg/m2 ( p < 0.001), documented CKD ( p < 0.001), baseline eGFR ⩽ 60 ml/min/1.73 m2 ( p < 0.001), and radical nephrectomy ( p < 0.001) were independent risk factors of lower eGFR at baseline and during follow-up. Average eGFR decreased within 3 months post nephrectomy. However, patients with different risk levels showed different eGFR time trend pattern at longer follow-ups. Multivariate analysis of time × risk factor interaction showed BMI, radical nephrectomy and baseline eGFR had time-dependent impact. BMI ⩾ 25 kg/m2 and radical nephrectomy were associated with steeper eGFR decrease slope. In baseline eGFR > 90 ml/min/1.73 m2 group, eGFR rebounded to pre-nephrectomy levels during extended follow-up. In partial nephrectomy patients with baseline eGFR ⩾ 90 ml/min/1.73 m2 ( n = 61), proteinuria ( p < 0.001) and BMI ( p < 0.001) were independent risk factors of decreased eGFR during follow up. Conclusions: As have been suggested by others and confirmed by our study, proteinuria and CKD are greatly under-recognized. Although self-evident as a minimum workup for nephrectomy patients to include SCr, eGFR, urinalysis, and proteinuria, the need for uniform applications of this practice should be reinforced. Non-neoplastic histology evaluation is valuable and should include an estimate of global sclerosis% (GS) and IFTA%. Patients with any proteinuria and/or eGFR ⩽ 60 at the time of nephrectomy or in follow-up with urologists, and/or >25% GS or IFTA, should be referred for early nephrology consultation.

scholarly journals Risk factors for cholesterol polyp formation in the gallbladder are closely related to lipid metabolism

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Zhihao Yu ◽  
Changlin Yang ◽  
Xuesong Bai ◽  
Guibin Yao ◽  
Xia Qian ◽  
...  
Keyword(s):  
Risk Factors ◽  
Low Density Lipoprotein ◽  
Univariate Analysis ◽  
Density Lipoprotein ◽  
High Volume ◽  
Population Characteristics ◽  
Polyp Formation ◽  
Logistic Analysis ◽  
Cholesterol Polyp ◽  
Independent Risk Factors

Abstract Background The purpose of this study was to assess the risk factors for cholesterol polyp formation in the gallbladder. Methods This was a multicenter retrospective study based on pathology. From January 2016 to December 2019, patients who underwent cholecystectomy and non-polyp participants confirmed by continuous ultrasound follow-ups were reviewed. Patients in the cholesterol polyp group were recruited from three high-volume centers with a diagnosis of pathologically confirmed cholesterol polyps larger than 10 mm. Population characteristics and medical data were collected within 24 h of admission before surgery. The non-polyp group included participants from the hospital physical examination center database. They had at least two ultrasound examinations with an interval longer than 180 days. Data from the final follow-up of the non-polyp group were analyzed. The risk factors for cholesterol polyp formation were analyzed by comparing the two groups. Results A total of 4714 participants were recruited, including 376 cholesterol polyp patients and 4338 non-polyp participants. In univariate analysis, clinical risk factors for cholesterol polyps were age, male sex, higher body mass index (BMI), higher low-density lipoprotein (LDL), lower high-density lipoprotein (HDL), and higher aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels. In multivariate logistic analysis, independent risk factors were age > 50 years (odds ratio [OR] = 3.02, 95% confidence interval [CI] 2.33–3.91, P < 0.001], LDL > 2.89 mmol/L (OR = 1.38, 95% CI 1.08–1.78, P = 0.011), lower HDL (OR = 1.78 95% CI 1.32–2.44, P < 0.001), AST > 40 IU/L (OR = 3.55, 95% CI 2.07–6.07, P < 0.001), and BMI > 25 kg/m 2 (OR = 1.32, 95% CI 1.01–1.72, P = 0.037). Conclusions Age, LDL, HDL, AST, and BMI are strong risk factors for cholesterol polyp formation. Older overweight patients with polyps, accompanied by abnormal lipid levels, are at high risk for cholesterol polyps.

scholarly journals Risk Factors for Non-union in First MTPJ Arthrodesis

2018 ◽  
Vol 3 (3) ◽  
pp. 2473011418S0035 ◽  
Author(s):  
Andrew Molloy ◽  
Clifford Butcher ◽  
Lyndon Mason
Keyword(s):  
Risk Factors ◽  
Relative Risk ◽  
Hallux Valgus ◽  
Locking Plate ◽  
Univariate Analysis ◽  
Dorsal Plate ◽  
First Metatarsophalangeal Joint ◽  
Non Union ◽  
Severe Hallux Valgus

Category: Midfoot/Forefoot Introduction/Purpose: Hallux rigidus occurs in up to 1 in 40 adults with 1st MTPJ arthrodesis being the gold standard operation for advanced disease. Our aim was to retrospectively identify risk factors for delayed / non-union of first metatarsophalangeal joint arthrodesis using a dorsal plate with cross screw. Methods: Case note and radiograph analysis was performed for operations between April 2014 and April 2016 with at least 6 months post-operative follow up. Union was defined as bridging bone across the fusion site on AP and lateral radiographic views with no movement or pain at the MTPJ on examination. All patients operations were performed or directly supervised by one of three fellowship trained consultant foot surgeons. Surgery was performed through a dorsal approach using a dorsal locking plate with compression screw. Blinded preoperative AP radiographs were analysed for the presence of a severe hallux valgus angle equal to or above 40 degrees. Intra-observer reliability was acceptable (95% CI: 1.6-2.3 degrees). Smoking and co-morbidities underwent univariate analysis for significance. Following initial result results, surgery in patients with arthritic hallux valgus were fixed using a separate plantar to dorsal / medial to lateral lag screw and dorsal locking plate Results: 71 patients with a mean age of 61 years (range, 29 to 81) comprised the initial patient group. Mean follow up time was 13 months for both union and nonunion groups (range 6 to 30 months). 7 patients were identified as delayed or nonunion (9.9%). All had hallux valgus angles of >25%. Age, diabetes, COPD and rheumatoid arthritis did not show significant associations with non-union. All smokers progressed to union (n = 17). Moderate to severe hallux valgus (relative risk: 1.29, p < 0.005) and under correction of >25 valgus at the MTPJ (relative risk: 14.44, p < 0.001) were significantly associated with non/delayed union. In the second group, 18 patients of similar demographics, there were no failure of reductions and 100% union rate Conclusion: Preoperative moderate to severe hallux valgus and under-correction of deformity are the most significant risk factors for non-union. The construct used for fixation needs to be chosen on the basis of the deforming forces. If so, excellent union rates can be achieved

scholarly journals Stroke prediction in patients presenting with isolated dizziness in the emergency department

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
June-sung Kim ◽  
Hong Jun Bae ◽  
Muyeol Kim ◽  
Shin Ahn ◽  
Chang Hwan Sohn ◽  
...  
Keyword(s):  
Risk Factors ◽  
Emergency Department ◽  
Multivariate Analysis ◽  
Acute Stroke ◽  
Neurological Deficits ◽  
Cerebrovascular Injury ◽  
Risk Patients ◽  
History Of ◽  
Independent Risk Factors ◽  
Record Review

AbstractDiagnosing stroke in patients experiencing dizziness without neurological deficits is challenging for physicians. The aim of this study was to evaluate the prevalence of acute stroke in patients who presented with isolated dizziness without neurological deficits at the emergency department (ED), and determine the relevant stroke predictors in this population. This was an observational, retrospective record review of consecutive 2215 adult patients presenting with dizziness at the ED between August 2019 and February 2020. Multivariate analysis was performed to identify risk factors for acute stroke. 1239 patients were enrolled and analyzed. Acute stroke was identified in 55 of 1239 patients (4.5%); most cases (96.3%) presented as ischemic stroke with frequent involvement (29.1%) of the cerebellum. In the multivariate analysis, the history of cerebrovascular injury (odds ratio [OR] 3.08 [95% confidence interval {CI} 1.24 to 7.67]) and an age of > 65 years (OR 3.01 [95% CI 1.33 to 6.83]) were the independent risk factors for predicting acute stroke. The combination of these two risks showed a higher specificity (94.26%) than that of each factor alone. High-risk patients, such as those aged over 65 years or with a history of cerebrovascular injury, may require further neuroimaging workup in the ED to rule out stroke.

scholarly journals Risk Factor Analysis for Infection after Medial Open Wedge High Tibial Osteotomy

2021 ◽  
Vol 10 (8) ◽  
pp. 1727
Author(s):  
Ta-Wei Liu ◽  
Chih-Hao Chiu ◽  
Alvin Chao-Yu Chen ◽  
Shih-Sheng Chang ◽  
Yi-Sheng Chan
Keyword(s):  
Diabetes Mellitus ◽  
Risk Factors ◽  
Multivariate Analysis ◽  
High Tibial Osteotomy ◽  
Univariate Analysis ◽  
Arthroscopic Surgery ◽  
Underlying Disease ◽  
Tibial Osteotomy ◽  
Open Wedge ◽  
Wedge High Tibial Osteotomy

Background: Medial open wedge high tibial osteotomy (MOWHTO) is a well-established treatment for osteoarthritis of the medial tibiofemoral compartment. Surgical site infection (SSI) after MOWHTO is a devastating complication that may require further surgery. In this study, we aimed to identify the risk factors for infection after MOWHTO over 1 to 4 years of follow-up. Methods: Fifty-nine patients who underwent MOWHTO combined with knee arthroscopic surgery were included in this prospective study. Artificial bone grafts were used in all cases. Possible risk factors, including sex, age, body mass index (BMI), underlying disease, hospitalization length, correction angle, and surgery time, were recorded. Both univariate and multivariate analysis were used. Results: A total of 59 patients who underwent 61 operations were included. Eleven patients (18.0%) were reported to have SSI. Univariate analysis showed that smoking and diabetes mellitus were positively associated with SSI. Multivariate analysis showed that smoking and age were positively associated with SSI. Three patients (4.9%) were reported to suffer from deep SSI, requiring surgical debridement, all of whom were male smokers. Conclusion: Smoking, diabetes mellitus, and old age were identified to be possible risk factors of SSI after MOWHTO. These findings are common risk factors of SSI after orthopedic surgery according to the literature. Patient selection should be performed cautiously, and postoperative prognosis for MOWHTO should be carefully explained to patients who smoke.

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