Scarf osteotomy for hallux valgus deformity: Radiological outcome,metatarsal length and early complications in 118 feet

BackgroundScarf osteotomy has been widely used to restore axial orientation of the first ray in the treatment of hallux valgus deformity. The aim of the study was to present our radiological outcomes of bunion reconstruction, identify surgical complications in early follow-up, and assess to what extent a shortening of the first metatarsal is present after surgery as a possible cause of postoperative metatarsalgia.MethodsWe enrolled 106 patients (118 feet) and assessed patients’ pre- and postoperative measurements of hallux valgus and intermetatarsal angles on weightbearing X-ray images. Three different methods of measuring metatarsal length were compared and early postoperative complications noted.ResultsHallux valgus angle decreased significantly by an average of 18.7 degrees and the intermetatarsal angle by 7.8 degrees. Using three methods of measuring metatarsal length, all showed significant shortening of the first metatarsal. Mean relative lengthening of the second metatarsal averaged 0.45 mm. The Coughlin method showed the highest interrater reliability (ICC = 0.96).ConclusionsSignificant reduction of the hallux valgus angle and intermetatarsal angle was demonstrated with a low complication rate. There was significant shortening of the first metatarsal. The Coughlin method clearly demonstrated an excellent interrater reliability.Level of evidenceLevel IV.     

Shortening Scarf osteotomy for correction of severe hallux valgus. Does shortening affect the outcome?

BackgroundTranslation and shortening of Scarf osteotomy allows correction of severe hallux valgus deformity. Shortening may result in transfer metatarsalgia.AimTo evaluate outcome of patients undergoing shortening Scarf osteotomy for severe hallux valgus deformities.Materials and MethodsFifteen patients (20 feet, mean age 58 years) underwent shortening Scarf osteotomy for severe hallux valgus deformities. Outcomes were pre and postoperative AOFAS scores, IM and HV angles, patient satisfaction.ResultsMean follow-up was 25 months (range 22–30). The IM angle improved from a median of 18.60 (range 13.4–26.20) preoperatively to 9.70 (range 8.0–13.70) postoperatively (8.9; 95% CI = 7.6–10.3; p < 0.001). The HV angle improved from a mean of 43.2 (range 27.4–68.2) preoperatively to 13.6 (range 3.0–37.4) postoperatively (29.6; 95% CI = 26.1–33.2; p < 0.001).The median AOFAS score improved from 29.2 (range 14–60) preoperatively to 82.2 (range 55–100) postoperatively (53.0; 95% CI = 48.0–58.5; p < 0.001). All patients rated their satisfaction as either satisfied or very satisfied. None had symptoms of transfer metatarsalgia at final follow-up. All osteotomies united.ConclusionsShortening Scarf osteotomy is a viable option for treating severe hallux valgus deformities with no transfer metatarsalgia.     

Hallux varus following scarf osteotomy

Hallux varus is an uncommon condition and majority of the cases are iatrogenic. It can occur as a result of any type of hallux valgus correction surgery and in our cases scarf osteotomy is not an exception. Treatment of this complication can be challenging and it is important to understand the factors that cause this deformity before embarking on surgical correction. Four cases of hallux varus following Scarf osteotomy (1% of our total Scarf osteotomy cases) and discuss the salient features of these patients. The authors ascertained the factors that caused iatrogenic hallux varus and formulated a classification of the nature of the deformity. The management of iatrogenic hallux varus based on our experience and proposed classification system has also been outlined and discussed.     

The influence of concomitant hammertoe correction on postoperative outcomes in patients undergoing hallux valgus correction

BackgroundPatients with hallux valgus often develop secondary hammertoe deformities of the lesser toes. Operative management of bunions with hammertoe can be more extensive; however, it is unclear whether this affects patient-reported outcomes. The aim of this study was to compare postoperative patient-reported outcome measures and radiographic outcomes between patients who underwent isolated bunion correction and patients who underwent simultaneous bunion and hammertoe correction.MethodsPreoperative, postoperative, and change in Patient-Reported Outcomes Measurement Information System (PROMIS) scores were compared between patients who underwent isolated hallux valgus correction and those who underwent concomitant hammertoe correction. Radiographic measures including hallux valgus angle (HVA), intermetatarsal angle (IMA), distal metatarsal-articular angle (DMAA), and Meary’s angle were also compared. Targeted minimum-loss estimation (TMLE) was used for statistical analysis to control for confounders.ResultsA total of 221 feet (134 isolated bunion correction, 87 concomitant hammertoe correction) with a minimum of 12 months follow-up were included in this study. Both cohorts demonstrated significant improvements in the physical function, pain interference, pain intensity, and global physical health PROMIS domains (all p < 0.001). However, patients in the concomitant hammertoe cohort had significantly less improvements in pain interference and pain intensity (p < 0.01, p < 0.05 respectively). The concomitant hammertoe cohort also had significantly higher postoperative pain interference scores than the isolated bunion cohort (p < 0.01). Radiographic outcomes did not differ between the two groups.ConclusionWhile both isolated bunion correction and concomitant hammertoe correction yielded clinically significant improvements in patient reported outcomes and normalized radiographic parameters, patients undergoing simultaneous bunion and hammertoe correction experienced substantially less improvement in postoperative pain-related outcomes than those who underwent isolated bunion correction.     

Scarf osteotomy in the management of symptomatic adolescent hallux valgus

Purpose  

This study was designed to assess the utility of the scarf osteotomy in the management of symptomatic adolescent hallux valgus.     

Clinical and radiological outcomes of concomitant endoscopic gastrocnemius release with scarf osteotomy

Background

Studies showed patients with hallux valgus also have tight gastrocnemius concomitantly. This study aims to investigate (1) prevalence of tight gastrocnemius in symptomatic hallux valgus (2) clinical and radiological outcomes of concomitant endoscopic gastrocnemius release with scarf osteotomy.

Are two incisions necessary for hallux valgus correction?

Background

Soft tissue release for hallux valgus correction is traditionally performed through a dorsal first web space incision. We performed a single surgeon series review of hallux valgus correction with Scarf ± Akin osteotomy and lateral release using a single medial incision.

Scarf截骨治疗躅外翻的短期疗效分析

背景：拇外翻为足踝外科常见病、多发病,目前以各种手术治疗为主,术后效果及复发率有较大差异。目的：探讨Scarf截骨联合其他手术方式治疗中、重度拇外翻的短期疗效。方法：2008年7月至2010年6月,采用Scarf截骨治疗中、重度坶外翻患者33例（41足）,男4例（4足）,女29例（37足）;年龄24-69岁,平均51．7岁。在Scarf截骨的基础上部分患者联合第一跖趾关节骨赘切除、软组织松解及拇趾近节趾骨Akin截骨等手术方式。采用美国足踝外科协会（American Orthopedic FootandAnkle Society,AOFAS）Maryland拇跖趾关节评分系统进行疗效评估。随访时摄足负重位X线片并测量拇外翻角（halluxvalgusangle,HVA）和第一、二跖骨间角（intermetatarsalangle．IMA）。结果：所有患者均获随访,时间12-36个月,平均20．4个月。HVA由术前32．78。矫正至10．18°,IMA由术前11．57。矫正至6．26。。Maryland拇跖趾关节评分：90-100分28足（68．3％）,80-89分11足（26．8％）,70-79分2足（4．9％）,优良率为95．1％（39／41）。结论：Scarf截骨术具有较好的自身稳定性,纠正畸形能力强,愈合快,坚固的内固定可使患者早期下地活动,并发症相对较少,联合其他手术方式是治疗中、重度拇外翻的理想方法。     

Spezifische schwerwiegende Komplikationen nach Scarf Osteotomie

The Scarf osteotomy is a versatile osteotomy with high intrinsic stability. Still the Scarf osteotomy bears a lot of risks while performed. The consequence of it could be a fracture with elevation of the MT I head with a possible malrotation and varisation or valgisation. The mechanism of failure and possible surgical revision techniques will be discussed.     

Chevron osteotomy versus scarf osteotomy for hallux valgus correction: A meta-analysis

BackgroundThis study intended to investigate the optimal surgical strategy in hallux valgus (HV), and to provide a basis for clinical treatment of HV.MethodsStudies related to chevron osteotomy and scarf osteotomy for HV were enrolled from online databases. Hallux valgus angle (HVA) was the main outcome variable. Enrolled studies included posttreatment data for intermetatarsal angle (IMA), American Orthopaedic Foot & Ankle Society (AOFAS) score, and complications. A random-effects model was applied for significant heterogeneity. Otherwise, a fixed-effects model was used. Heterogeneity was assessed with Q test and I² statistics. Publication bias was evaluated with Egger's test. Based on the influence of weighted mean difference values or odds ratios, a sensitivity analysis was performed.ResultsFour studies including 384 subjects were evaluated to determine the optimal surgical strategy for HV. There was no statistically significant difference between chevron and scarf groups for HVA, IMA, AOFAS score, and complication rates. Sensitivity analysis showed good stability. The likelihood of publication bias was small.ConclusionThe effects of chevron osteotomy and scarf osteotomy for HV are comparable. Chevron osteotomy is less technically demanding.