Hallux Valgus: A modified Kramer osteotomy

ObjectiveThe purpose of this study is to evaluate the outcomes for surgical treatment of Hallux Valgus deformity with the use of modified Kramer osteotomy.MethodsFrom January 2003 to January 2005, 101 (23 bilaterally) modified Kramer osteotomies were performed in 78 patients evaluated clinically (74 of 78) with a phone interview and radiographic assessment with a mean follow up of 23.3 ± 6.9 months.ResultsThe average grade of satisfaction score was 7.9 ± 2.0 (0–10). 82.4% of patients would come back to be operated by the same surgery if necessary, 6.7% needed special shoes, 21.6% needed insoles, 87.8% practiced sports activity. The postoperative radiographic assessments in metatarsophalangeal, intermetatarsal, distal metatarsal articular angle and sesamoid reduction showed a significant change (p < 0.001), compared with the preoperative values. Complications: 1.2% vein thrombosis, 1.2% deep infection, 6.7% recurrences and 17.8% hipercorrected distal metatarsal articular angle.ConclusionThe modified Kramer osteotomy enables a good correction in mild and moderate HV deformity with low rate of complications.     

Intrasubject Radiographic Progression of Hallux Valgus Deformity in Patients With and Without Metatarsus Adductus: Bilateral Asymmetric Hallux Valgus Deformity

This study was to analyze intrasubject radiographic progression of the hallux valgus deformity by comparing the mildly and severely affected sides in patients with bilateral asymmetric hallux valgus in the whole group as well as the metatarsus adductus and the nonmetatarsus adductus subgroups. A total of 186 patients with bilateral asymmetrical hallux valgus deformity with a difference of 5° or greater in the hallux valgus angle were included, and 11 radiographic measurements were analyzed. The radiographic differences between the mildly and severely affected sides were compared. Correlation between the changes in the hallux valgus angle and those in other measurements was analyzed, and multiple regression analyses were performed. The anteroposterior talo-second metatarsal angle showed no significant difference between the mildly and severely affected sides. Changes in the intermetatarsal angle and sesamoid rotation angle were significantly associated with the progression of hallux valgus angle in the whole group as well as the nonmetatarsus adductus subgroup. Change in the intermetatarsal angle (p = .006) was the significant factor associated with the progression of hallux valgus angle in the metatarsus adductus subgroup. The anteroposterior talo-second metatarsal angle might be useful in evaluating the overall foot shape in the hallux valgus deformity. Progression of the hallux valgus deformity might be pathophysiologically different between those with and without metatarsus adductus.     

Factors Associated With Early Loss of Hallux Valgus Correction

Recurrence is common after hallux valgus corrective surgery. Although many investigators have studied the risk factors associated with a suboptimal hallux position at the end of long-term follow-up, few have evaluated the factors associated with actual early loss of correction. We conducted a retrospective cohort study to identify the predictors of lateral deviation of the hallux during the postoperative period. We evaluated the demographic data, preoperative severity of the hallux valgus, other angular measurements characterizing underlying deformities, amount of hallux valgus correction, and postoperative alignment of the corrected hallux valgus for associations with recurrence. After adjusting for the covariates, the only factor associated with recurrence was the postoperative tibial sesamoid position. The recurrence rate was ~50% and ~60% when the postoperative tibial sesamoid position was >4 and >5 on the 7-point scale, respectively.     

Radiographic Measurements of Patients With Juvenile Hallux Valgus Compared With Age-Matched Controls: A Cohort Investigation

The purpose of this study was to investigate radiographic measurements in a cohort of patients with juvenile hallux valgus (with a hallux valgus angle > 15 degrees ) using standardized weightbearing x-rays compared with an age-matched control group. First metatarsal protrusion distance, metatarsus primus adductus angle, metatarsus adductus, first metatarsal cuneiform angle, calcaneal inclination angle, and talocalcaneal angles were assessed with discriminant functional analysis. A total of 37 sets of data were analyzed from patients with a mean age of 13.45 +/- 1.75 years. The study identified 2 significant components of juvenile hallux valgus: a positive first metatarsal protrusion distance (P <.001) and metatarsal primus adductus angle (P = .002). Discriminant functional analysis was then used to determine the best predictors of juvenile hallux valgus. This analysis allowed only 1 variable, metatarsal protrusion distance, as a predictor of whether juvenile hallux valgus was present (P < .001), with 94.3% accuracy. This study showed that a positive metatarsal protrusion distance is a significant component of juvenile hallux valgus.     

Hallux Valgus Correction With Rotational Scarf Combined With Adductor Hallucis Tendon Transposition

Hallux valgus affects 23% of people older than 40 years, and there are hundreds of methods dealing with this pathology, which have their advantages and disadvantages. The aim of the present prospective cohort study was to report our experience in treating the patients with hallux valgus and to perform a comparative analysis of the outcomes of the innovative and standard methods of surgical correction. Data on 78 patients (113 feet) with hallux valgus operated on between March 2010 and December 2015 using either an innovative method, which included rotational scarf osteotomy with bone fragment impaction and adductor hallucis tendon reinsertion, or the classical scarf osteotomy were analyzed. X-ray examination was performed preoperatively and 3 and 36 months after the procedure. A comparative analysis of the outcomes between the groups was carried out. No significant difference in mean radiographic data (p > .05) was found between these 2 groups preoperatively and 3 months after surgery. Nevertheless, the mean intermetatarsal angle 36 months after surgery in standard and innovative groups was 9.7 ± 0.7° and 9.0 ± 0.8° (p < .01) and the mean metatarsophalangeal angle 13.6 ± 0.9° and 13.2 ± 1.1° (p?=?.01), respectively. The innovative method of surgical correction of hallux valgus was seen to produce improved radiographic results.     

A Novel Manipulation Technique for Lapidus Fusion in Correction of Hallux Valgus Deformity With Underlying Metatarsus Adductus: A Case Series

Underlying metatarsus adductus (MA) is commonly seen in patients with hallux valgus (HV) deformity, with implications regarding procedure selection and hallux valgus recurrence. Lapidus, or first tarsometatarsal fusion, is commonly performed allowing reduction in intermetatarsal angle (IMA) but this procedure has not been established as an approach to provide partial correction of MA deformity. Retrospective assessment of preoperative and postoperative metatarsus adductus angle (MAA), IMA and hallux abductus angle (HAA) in patients treated with Lapidus fusion for HV. Significance was determined via paired t test with a p value of <.05. All cases involved manual transverse plane manipulation to reduce both IMA and MAA during screw insertion. Intermetatarsal angle and Engel's angle were measured on preoperative AP radiographs to determine the presence of underlying MA in patients undergoing Lapidus fusion for HV. Ten weeks and 1 year postoperative radiographs were measured to determine degree of correction of IMA, HAA, and MAA. Thirty-four patients met inclusion criteria, which is approximately 46% of our sample population. The average preoperative IMA was 19.4? (range 12-32) and the average postoperative IMA was 9.7? (range 6-14). The average preoperative Engel's angle was 27.4? (range 24-34) and the average postoperative Engel's angle was 22.6? (range 15-28) with mean improvement in MA of 6.6?. Of the 34, 27 (79.4%) patients had a normal Engel's angle at 10 weeks postoperatively. All measures of change met level of significance (p < .05). Of the 34 patients, 21 had radiographs taken beyond the 1 year mark (average 53 weeks). These patients were found to have an average Engel's angle of 23.0?, which is not statistically significantly different from their 10 week measurements. Of the 21 patients, 17 (81%) maintained normal Engel's angle past 1 year. Metatarsus adductus varies regarding degree of reducibility and complicates preoperative angular measurement and correction of HV. Based on these findings, we recommend Lapidus fusion using this specified manipulation technique to obtain comprehensive transverse plane correction.     

Percutaneous Osteotomies in Hallux Valgus: A Systematic Review

Percutaneous and minimally invasive surgery is one of the greatest advances in the operating field of orthopedic since the late 1990s. The potential advantages include a shorter operative time, quicker recovery, and reduced hospital stay compared with traditional open surgery. However, scientific validation of the safety and efficacy of hallux valgus (HV) percutaneous surgery remains inconclusive. The objective of the present study was to systematically review the published data and clinical evidence for percutaneous HV surgery, evaluate the scientific method of the reports, and clarify the indications, safety, efficacy, and potential risks of these surgical techniques. Two reviewers independently identified the studies using a PubMed search, with the keywords “hallux valgus,” “osteotomy,” “minimally invasive,” and “percutaneous.” Quality assessment was performed using the Coleman methodology scale, and each study was assigned a level of evidence and grade of recommendation. Eighteen studies were included and reported a total of 1534 procedures for percutaneous HV surgery on 1397 patients. Of the 18 studies, 14 (77.8%) were level IV, 2 (11.1%) were level III, and 2 (11.1%) were level II. Overall, the average angle correction of the HV deformity improved postoperatively. Regarding the complications, although some investigators revealed no major complications, others described deformity recurrence in 7.8%, stiffness of the first metatarsophalangeal joint in 9.8%, malunion in 4% to 8.7%, and infection rates ranging from 1.9% to 14.3%. The main indication for percutaneous HV surgery is the correction of mild deformities. The complication rate was elevated even in experienced surgeons. In conclusion, future research in percutaneous techniques should include adequately sized randomized control trials, standardization of treatment protocols, and the use of validated tools for the measurement of clinical outcomes.     

Hallux Valgus Inheritance: Pedigree Research in 350 Patients With Bunion Deformity

Our objective was to construct 3-generation pedigree charts from 350 patients with hallux valgus. During a 1-year period, all consecutive patients (n = 1174) with a painful bunion deformity evaluated roentgenographically were asked to complete a detailed 3-generation family history questionnaire. We studied 350 probands (22 men, 328 women; male/female ratio, 1:14.9; mean age, 47.8 years). Juvenile hallux valgus was diagnosed in 15 patients. Three or more affected members were observed in pedigrees from 244 probands, 2 affected members in 71, and 1 affected member in 35 (proband) (affected subjects per pedigree ranged from 1 to 16). Ninety percent of probands had at least 1 family member affected. The hallux valgus penetrance according to pedigrees from all probands was 56%. The female sex predominated with regard to the gender of parents with hallux valgus, affected branch of the family, and gender of relatives with bunion deformity. Severity of hallux valgus was not significantly influenced by gender, the affected branch of the family, or gender of the affected relatives. Family history of bunion deformity was present in 90% of probands, with vertical transmission affecting some family members across 3 generations, which is compatible with autosomal dominant inheritance with incomplete penetrance.     

Hallux Pronation in Hallux Valgus: Experimental and Radiographic Study

Toe pronation is a frequent sign in hallux valgus (HV), but it is difficult to assess and quantify. The aim of this study was to evaluate the relation between big toe pronation with both radiological and clinical findings and to determine if toe pronation is an influential factor in severity of HV. Six big toe donor proximal phalanges were used to create a radiographic calibrating system controlling their pronation at 0° to 60°. A linear regression model was used to predict proximal phalanx pronation in radiographs. Big toe pronation in HV was clinically evaluated with a prospective study using 132 patients from our surgical waiting list and a control group of 30 patients without HV. Patients standing barefoot on a rigid platform were used to obtain the nail–floor angle. We obtained the following angles: HV, intermetatarsal, interphalangeal, distal articular set angle, proximal articular set angle, first metatarsal pronation, proximal phalanx pronation, and sesamoid bones displacement. We obtained an equation to predict proximal phalanx pronation according to the proportion of the rotated phalanx (p < .001, r = 0.98), and used an intraclass reliability test to assess the intra-/interobserver reliability (p < .001, intraclass correlation [ICC] = 0.89/p < .001, ICC = 0.82). We found that the relation between HV severity and proximal phalanx pronation, nail–floor angle, and first metatarsal pronation was statistically significant (p < .0001, r = 0.64). Proximal phalanx pronation and nail–floor angle should be considered to classify the severity of HV. Using a mathematical formula, we can predict proximal phalanx pronation on radiographs.Clinical Level of Evidence:     

Complications on Percutaneous Hallux Valgus Surgery: A Systematic Review

Lately there has been a growing interest in the use of percutaneous surgery for the correction of hallux valgus (HV). The purpose of the present study was to systematically review the published data about this topic and establish the efficacy and safety, stressing the complication rates found on this percutaneous technique.A systematic review of the literature available in PubMed was performed. The radiological and clinical outcomes were evaluated as well as complication rates.A total of 16 studies were included and 1157 procedures reported for percutaneous HV on 1246 patients. The mean angle correction of HV deformity improved postoperatively. Reported complications vary among the studies. The highest complication rate was joint stiffness in 18.47% of cases, followed by HV recurrence and shortening of M1, both in 15.2%, material intolerance in 10.1%, osteoarthritic changes in 9.1%, infection in 7.6%, and transfer metatarsalgia in 5.4%.There is a lack of randomized control trials and insufficient comparative case control studies to assess whether one technique is more effective than another or if the percutaneous surgery is recommended rather than open surgery with respect to complications.     

Minimally Invasive Hallux Interphalangeal Joint Arthrodesis for Hallux Varus in Pfeiffer Syndrome: A Case Report

Pfeiffer syndrome is a rare hereditary condition with an autosomal dominant transmission caused by a mutation that affects fibroblast growth factor receptors. It is one of the acrocephalosyndactyly diseases causing cranial malformations owing to early suture fusion. In the foot, it is typically associated with hallux varus, first ray hyperplasia, and partial lesser digit syndactyly. We report a clinical case of a 10-year-old patient with Pfeiffer type I syndrome with bilateral severe hallux varus due to a hypoplastic trapezoidal shaped proximal phalanx, a distal, medial-facing articular surface, and interphalangeal instability. This deformity was addressed by minimally invasive hallux interphalangeal joint arthrodesis with internal and external fixation. We report the results at the 2-year follow-up point.     

Bilateral Hallux Saltans: Report of a Case

A case of bilateral hallux saltans in a 13-year-old girl is reported. The signs and symptoms were a tender nodule behind the medial malleolus and a “trigger toe” as well as pain radiating up the lower leg. Operation revealed thickening of the flexor retinaculum superficially to the flexor hallucis longus tendon which showed compression and proximal thickening. Resection of the retinaculum afforded a satisfactory result.