Dual-mobility cups in revision acetabular reconstructions: Short-term outcomes in high-risk patients for instability

ObjectiveThe aim of this study was to evaluate the performance of dual-mobility (DM) cup systems for revision total hip arthroplasty (rTHA) in patients who had high risk for instability.MethodsWe prospectively followed up 34 hips of 30 patients (27 females, 3 males; mean age: 66.1 (range: 33 to 89) years) who underwent rTHA with DM cups for aseptic loosening in 23 hips, infection treatment as second or single stage in nine hips, and instability in two hips. Clinical functions of the patients were evaluated using the Harris Hip Score (HHS), and radiological migration or loosening of the DM cups were recorded. The survival of the components was calculated with the Kaplan-Meier survival analysis and failure was defined as any dislocation of the polyethylene (PE) insert, intraprosthetic dislocation (IPD), aseptic loosening of any component or total hip system revision due to any reason.ResultsThe mean duration of follow-up was 3.52 (range: 2.05 to 6.26) years. There was one dislocation of PE insert (2.9%), which was treated with closed reduction. There were two (5.8%) re-revisions for cemented DM cup due to migration. There was one PE insert and head change due to subacute infection. The mean HHS increased from 42.8 ± 6.7 (range: 34 to 60) points preoperatively to 87.3 ± 5.8 (range: 75 to 98) points postoperatively. The cumulative survival rate of the DM cup system was 91.2% (95% CI: 81.6–100%) with any revision, 94.1% (95% CI: 86.2–100%) with aseptic loosening and %97.1 (%95 CI: 91.4–100%) with dislocation as the end point at 3.5 years.ConclusionDual-mobility cups may provide good stability and represent a good option for revision acetabular reconstruction in patients who have high risk for instability.Level of evidenceLevel IV, therapeutic study.     

The hip in arthrogryposis

Journal of Children's Orthopaedics - Hip dislocation is seen in approximately 30 % of children with amyoplasia and approximately 50 % of these will be bilateral. Closed...     

袢钢板弹性悬吊治疗下尺桡关节脱位的临床疗效

目的探讨袢钢板弹性悬吊下尺桡关节(DRUJ)治疗DRUJ脱位的临床疗效。方法选取于2016年1月至2020年6月于郑州大学第一附属医院收治的确诊为DRUJ脱位的患者15例,随访时间6~18个月,对比其术前术后腕关节评分Gartland-Werley腕关节评分、术后患侧及健侧腕关节功能、术后并发症。术后两侧关节功能比较采用配对t检验。结果随访期间所选患者无切口感染、脱位复发等并发症发生。术后复查X线片示关节脱位得到有效复位且合并患侧尺桡骨远端骨折者骨折均已良好愈合,末次随访时根据Gartland-Werley评分标准评价腕关节功能:优10分,良4分,可1分。术后腕关节主动活动度健侧与患侧比较差异无统计学意义[屈伸活动度为,(109.33±15.91)°比(106.40±16.20)°,t=1.596,P>0.05;尺桡偏活动度为,(61.33±6.67)°比(59.87±7.69)°,t=1.703,P>0.05;旋前旋后活动度为,(111.67±11.44)°比(109.13±13.64)°,t=1.557,P>0.05]。结论带袢钢板弹性悬吊治疗DRUJ脱位患者术后腕关节功能恢复良好,随访疗效满意。     

Surgical interventions for anterior shoulder instability in rugby players: A systematic review

AIM: To systematically evaluate the evidence-based literature on surgical treatment interventions for elite rugby players with anterior shoulder instability.METHODS: We conducted a systematic review according to the PRISMA guidelines. A literature search was performed in PubMed, EMBASE and Google Scholar using the following search terms: “rugby” and “shoulder” in combination with “instability” or “dislocation”. All articles published from inception of the included data sources to January 1^st 2014 that evaluated surgical treatment of elite rugby players with anterior shoulder instability were examined.RESULTS: Only five studies were found that met the eligibility criteria. A total of 379 shoulders in 376 elite rugby union and league players were included. All the studies were retrospective cohort or case series studies. The mean Coleman Methodological Score for the 5 studies was 47.4 (poor). Owing to heterogeneity amongst the studies, quantitative synthesis was not possible, however a detailed qualitative synthesis is reported. The overall recurrence rate of instability after surgery was 8.7%, and the mean return to competitive play, where reported, was 13 mo.CONCLUSION: Arthroscopic stabilization has been performed successfully in acute anterior instability and there is a preference for open Latarjet-type procedures when instability is associated with osseous defects.     

Unstable Simple Elbow Dislocation Treated with the Repair of Lateral Collateral Ligament Complex

Background

Unstable simple elbow dislocation (USED) repair is challenged by the maintenance of joint reduction; hence, primary repair or reconstruction of disrupted ligaments is required to maintain the congruency and allow early motion of the elbow. We evaluated the effectiveness and the outcome of lateral collateral ligament (LCL) complex repair with additional medial collateral ligament (MCL) repair in cases of USED.

Methods

We retrospectively reviewed 21 cases of diagnosed USED without fractures around the elbow that were treated with primary ligament repair. In all cases, anatomical repair of LCL complex with or without common extensor origin was performed using suture anchor and the bone tunnel method. Next, the instability and congruency of elbow for a full range of motion were evaluated under the image intensifier. MCL was repaired only if unstable or incongruent elbow was observed. Clinical outcomes were evaluated using the Mayo elbow performance score (MEPS) and radiographic outcomes on last follow-up images.

Results

All cases achieved a stable elbow on radiographic and clinical results. LCL complex repair alone was sufficient to obtain the stable elbow in 17 of 21 cases. Four cases required additional MCL repair after restoration of the LCL complex. The overall mean MEPS was 91 (range, 70 to 100): excellent in 12 cases, good in 7 cases, and fair in 2 cases. All 17 cases with LCL complex repair only and 2 of 4 cases with additional MCL repair had excellent or good results by MEPS.

Conclusions

USED requires surgical treatment to achieve a congruent and stable joint. If the repair of lateral stabilizer such as LCL complex acquires enough joint stability to maintain a full range of motion, it may not be necessary to repair the medial stabilizer in all cases of USED.     

Snake bite induced cellulitis leading to infected open dislocation of the first metacarpophalangeal joint – A rare complication

Non-traumatic open dislocation of the first metacarpophalangeal joint is a rare phenomenon. We present a rare such occurrence secondary to snake bite induced cellulitis. A 22-year-old girl presented with pain and instability of her right thumb two months. She had snake bite two months back following which she developed cellulitis which gradually became infected. She presented with raw area over her dorsal aspect of the thumb with active infection. Radiographs revealed metacarpophalangeal joint dislocation. She underwent debridement, stabilisation and soft tissue coverage. At final follow up, she was pain free and the wound healed completely.     

Beiträge der Österreichischen Fußchirurgie zum Thema Osteotomien an den distalem Metatarsalia 2-5

Metatarsalgia is a common and well-known problem in the orthopedic office. Since 1916 metatarsal osteotomies are described for the treatment of this pathology. Austrian orthopedic surgeons and Foot & Ankle specialists have worked on this topic. A special focus was on the clinical and biomechanical analysis of the Weil osteotomy. Also, the next step of the evolution of the treatment of metatarsalgia, the DMMO (Distal Metaphyseal Metatarsal Osteotomy) was accompanied with clinical studies. Recent literature shows that if the criteria of indications are respected, the DMMO is a reproducible and safe technique. Since this technique has shown a learning curve, thorough training is necessary.     

足拇趾趾间关节脱位闭合复位失败的治疗分析

正患者,男,43岁,因外伤至左足拇趾肿痛2 h于2017年10月30日收入我院。患者于2 h前骑电动车下坡时不慎摔倒,左足趾尖先着地,随即出现左拇趾肿痛、畸形伴活动不能,于我院急诊外科行左足正斜位X线片示左足第1趾间关节半脱位(图1a,1b),随后急诊外科予手法复位失败后收住我科。入院查体:左拇趾明显肿胀,未见皮肤破口,左拇末节稍内旋屈趾畸形,趾间关节明显触痛,第1趾间关节