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Propensity Score-Matched Comparison of Ultrasound-Guided Versus Open Carpal Tunnel Release: Three-Month Outcomes From the MISSION Registry 超声引导与开放腕管松解术的倾向评分匹配比较:来自MISSION注册中心的三个月结果
Q3 Medicine Pub Date : 2026-01-21 DOI: 10.1016/j.jhsg.2025.100931
Victor M. Marwin MD, MBA , Christopher J. Lincoski MD , Johnny T. Nelson MD , James F. Watt DO , Amy T. Moeller MD , Paul E. Perry MD , Nicholas A. Bontempo MD , Steven R. Niedermeier MD , Larry E. Miller PhD, PStat , Kyle J. Moyles MD, MBA

Purpose

The purpose of the study was to compare the safety and effectiveness of ultrasound-guided carpal tunnel release (UGCTR) and open carpal tunnel release (OCTR) in real-world clinical settings.

Methods

Patients with carpal tunnel syndrome were prospectively enrolled in the multicenter MISSION registry and treated with unilateral UGCTR or OCTR by experienced surgeons. Outcomes included the Boston Carpal Tunnel Questionnaire Symptom Severity and Boston Carpal Tunnel Questionnaire Functional Status Scale, pain (0–10 scale), opioid use, health-related quality of life (EuroQoL 5-Dimension 5-Level), satisfaction (overall and wound), and adverse events through 3 months. Baseline group characteristics were balanced using propensity score matching.

Results

A total of 178 patients per group were analyzed. The predominant anesthesia methods differed between groups (84.8% wide awake local anesthesia no tourniquet with UGCTR; 68.5% monitored anesthesia with OCTR). Ultrasound-guided carpal tunnel release was associated with shorter incisions (5.2 vs 16.5 mm) and less sutured wound closure (14.6% vs 100%), but longer procedure times (15 vs 6 minutes). At 3 months, UGCTR showed minor statistical advantages in Boston Carpal Tunnel Questionnaire Symptom Severity (group difference: −0.14 points), Boston Carpal Tunnel Questionnaire Functional Status Scale (group difference: −0.16 points), and pain severity (group difference: −0.6 points), with no statistical differences in EuroQoL 5-Dimension 5-Level (group difference: 0.03 points) or overall satisfaction (group difference: 4.9%). Opioid use was less common (10.2% vs 49.1%), wound satisfaction was higher (94.2% vs 84.0%), and wound symptoms were less severe after UGCTR (60.7% vs 22.8% with no sensitivity or pain). Nonserious adverse event rates were comparable (1.1% vs 0.0%).

Conclusions

Ultrasound-guided CTR and OCTR provided safe and effective symptom relief in routine clinical practice. Ultrasound-guided CTR was associated with less anesthesia, shorter incisions, reduced opioid use, and fewer wound symptoms, whereas procedure time was shorter with OCTR. Technique selection should be guided by shared decision making, considering patient expectations and surgeon’s judgment.

Type of study/level of evidence

Therapeutic II.
目的比较超声引导下腕管松解术(UGCTR)和开放式腕管松解术(OCTR)在临床应用中的安全性和有效性。方法将腕管综合征患者纳入多中心MISSION注册中心,由经验丰富的外科医生进行单侧UGCTR或OCTR治疗。结果包括波士顿腕管问卷症状严重程度和波士顿腕管问卷功能状态量表、疼痛(0-10分)、阿片类药物使用、健康相关生活质量(EuroQoL 5维5级)、满意度(整体和伤口)和3个月的不良事件。使用倾向评分匹配平衡基线组特征。结果每组共分析178例患者。两组间主要麻醉方式不同(UGCTR全醒局麻不带止血带84.8%,OCTR监护麻醉68.5%)。超声引导下的腕管释放术切口较短(5.2 vs 16.5 mm),缝合伤口愈合较少(14.6% vs 100%),但手术时间较长(15 vs 6分钟)。在3个月时,UGCTR在波士顿腕管问卷症状严重程度(组差:−0.14分)、波士顿腕管问卷功能状态量表(组差:−0.16分)和疼痛严重程度(组差:−0.6分)方面有轻微的统计学优势,而在EuroQoL 5-Dimension 5-Level(组差:0.03分)或总体满意度(组差:4.9%)方面无统计学差异。阿片类药物使用较少(10.2% vs 49.1%),伤口满意度较高(94.2% vs 84.0%), UGCTR后伤口症状较轻(60.7% vs 22.8%,无敏感或疼痛)。非严重不良事件发生率相当(1.1% vs 0.0%)。结论超声引导下CTR和OCTR在临床常规治疗中均能安全有效地缓解症状。超声引导CTR与较少的麻醉、更短的切口、减少阿片类药物的使用和更少的伤口症状相关,而OCTR的手术时间更短。技术选择应在共同决策的指导下,考虑患者的期望和外科医生的判断。研究类型/证据水平:治疗性II。
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引用次数: 0
Antidepressant Use and Risk of Reoperation After Distal Radius Open Reduction and Internal Fixation: A Propensity Score-Matched Cohort Study 抗抑郁药的使用和桡骨远端切开复位内固定后再手术的风险:一项倾向评分匹配的队列研究
Q3 Medicine Pub Date : 2026-01-21 DOI: 10.1016/j.jhsg.2025.100930
Firdavs Kurbanov BS , Christopher Dussik MD , Amy Phan MD , Zion Rouege BS , Danielle Wilbur MD , Constantinos Ketonis MD, PhD

Purpose

Antidepressant use is common and has been linked to impaired bone remodeling, but its effect on fracture healing after fixation remains unclear. The purpose of this study was to examine whether selective serotonin reuptake inhibitors (SSRIs) and, separately, agents that modulate serotonergic signaling but are not SSRIs (non-SSRI serotonergic antidepressants) were associated with unplanned return to the operating room (RTOR) after open reduction and internal fixation (ORIF) of distal radius fractures.

Methods

We performed a retrospective, propensity score-matched cohort study using TriNetX, a global federated research network that aggregates deidentified electronic health record data from large health care organizations. Adults who underwent surgery within 14 days of distal radius fracture diagnosis were included and the ORIF date served as the index. Two mutually exclusive exposure comparisons were analyzed: SSRI users versus nonusers and non-SSRI serotonergic users (serotonin-norepinephrine reuptake inhibitors), tricyclic antidepressants, serotonergic monoamine oxidase inhibitors, vortioxetine, or vilazodone versus nonusers, defined by ≥2 prescriptions in the 180 days preindex. Cohorts were balanced using 1:1 greedy nearest-neighbor propensity-score matching (caliper 0.10). The primary outcome was unplanned RTOR 30–365 days postindex, defined as nonunion repair or repeat fixation. We estimated absolute risk differences, risk ratios (RRs), and Cox hazard ratios (HRs) with 95% confidence intervals (CIs).

Results

After matching, 2,657 SSRI users and 2,197 non-SSRI serotonergic users were compared with equal numbers of nonusers. Unplanned RTOR occurred in 47 (1.8%) SSRI users versus 20 (0.8%) nonusers (ARD 1.0%, RR 2.35, HR 2.25; 95% CI 1.33–3.79). Non-SSRI serotonergic users had 52 events (2.4%) versus 14 (0.6%) in nonusers (ARD 1.7%, RR 3.71, HR 3.62; 95% CI 2.01–6.54). Findings were consistent across absolute risk comparisons and time-to-event analyses.

Conclusions

Preoperative antidepressant exposure to SSRIs or non-SSRI serotonergic agents was associated with a small but clinically relevant increase in unplanned reoperation after distal radius ORIF.

Type of study/level of evidence

Prognostic III.
目的抗抑郁药的使用是常见的,并且与骨重塑受损有关,但其对骨折固定后愈合的影响尚不清楚。本研究的目的是研究选择性5 -羟色胺再摄取抑制剂(SSRIs)和单独调节5 -羟色胺能信号但不是SSRIs(非ssri 5 -羟色胺能抗抑郁药)的药物是否与桡骨远端骨折切开复位内固定(ORIF)后意外返回手术室(RTOR)有关。方法我们使用TriNetX进行了一项回顾性、倾向评分匹配的队列研究,TriNetX是一个全球联合研究网络,汇集了来自大型医疗机构的未识别电子健康记录数据。在桡骨远端骨折诊断后14天内接受手术的成人纳入研究,ORIF日期作为指标。分析了两种相互排斥的暴露比较:SSRI使用者与非SSRI使用者和非SSRI 5 -羟色胺能使用者(5 -羟色胺-去甲肾上腺素再摄取抑制剂)、三环抗抑郁药、5 -羟色胺能单胺氧化酶抑制剂、沃替西汀或维拉唑酮与非使用者,在指数前180天内定义为≥2个处方。使用1:1贪婪最近邻倾向评分匹配(caliper 0.10)来平衡队列。主要终点为指数后30-365天的计划外RTOR,定义为骨不连修复或重复固定。我们以95%置信区间(ci)估计绝对风险差异、风险比(rr)和Cox风险比(hr)。结果匹配后,2,657名SSRI使用者和2,197名非SSRI血清素能使用者与同等数量的非使用者进行了比较。非计划RTOR发生在47例(1.8%)SSRI使用者和20例(0.8%)非SSRI使用者(风险比1.0%,相对危险度2.35,相对危险度2.25;95% CI 1.33-3.79)。非ssri血清素能服用者发生52起事件(2.4%),非服用者发生14起事件(0.6%)(ARD为1.7%,RR 3.71, HR 3.62; 95% CI 2.01-6.54)。绝对风险比较和事件时间分析的结果是一致的。结论术前抗抑郁暴露于ssri类或非ssri类血清素能药物与桡骨远端ORIF术后非计划再手术的小幅增加相关,但与临床相关。研究类型/证据水平预后
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引用次数: 0
Treatment of Dupuytren Contracture Recurrence After Surgery With Collagenase Clostridium Histolyticum: A Retrospective Multicenter Series 胶原酶溶组织梭菌治疗双子宫挛缩术后复发:一项回顾性多中心研究
Q3 Medicine Pub Date : 2026-01-20 DOI: 10.1016/j.jhsg.2025.100919
Clayton A. Peimer MD , Marie A. Badalamente PhD , Philip Blazar MD , Keith A. Denkler MD , William Dzwierzynski MD , Mark Elzik MD , F. Thomas D. Kaplan MD , Jason A. Nydick DO , Gary M. Pess MD , James Verheyden MD , Mark A. Vitale MD , Jeffrey Andrews MS , Qinfang Xiang PhD , David Hurley MD , Lawrence C. Hurst MD

Purpose

Dupuytren contracture (DC) is a fibroproliferative disorder characterized by collagen deposition in the palmar fascia. Treatment options include collagenase clostridium histolyticum (CCH) injection and surgery; however, DC frequently recurs after primary therapy. We hypothesized that CCH treatment could be effective and well tolerated for the treatment of contracture recurrence for patients unwilling to undergo reoperation or at high risk for complications.

Methods

This Phase 4, multicenter, noninterventional, retrospective study analyzed medical records from 10 clinical centers in the US. Patients were treated with CCH for DC recurrence ≥6 months after previously successful surgical correction performed between January 1, 2010, and August 15, 2020. Primary end points were the measured joint contracture change from baseline, at first and last clinical evaluation within 12 months of CCH treatment of metacarpophalangeal (MP) and proximal interphalangeal (PIP) joint contractures. Secondary end points were “clinical success” (percentage of joints with reduction in contracture to 0° to 5°) and adverse events.

Results

Of 113 patients screened, 101 were analyzed (mean age, 64.1 years; 75% men). Median time to DC recurrence was 36.0 months. A total of 144 treated joints were analyzed (MP, n = 64; PIP, n = 75; unspecified, n = 5). Overall mean (SD) baseline contracture was 52° (21°) (MP, 43° [19°]; PIP, 61° [20°]). Mean (SD) improvement of contracture from baseline at last evaluation was 38° (21°) for all joints (MP, 36° [17°]; PIP, 41° [24°]), with 58% of joints having clinical success (MP, 75%; PIP, 43%). All skin tears (20 events in 19% of patients) resolved spontaneously, with 50% resolving in ≤21 days; there was one flexor profundus rupture that did not require secondary reconstruction.

Conclusions

This retrospective analysis indicates that CCH treatment is an effective and well tolerated nonsurgical option for recurrent postsurgical contracture, with results comparable to patients without prior surgery.

Type of study/level of evidence

Therapeutic III.
目的贲门挛缩(DC)是一种以掌筋膜胶原沉积为特征的纤维增生性疾病。治疗方案包括胶原酶溶组织梭菌(CCH)注射和手术;然而,DC经常在初次治疗后复发。我们假设,对于不愿再手术或有并发症高风险的患者,CCH治疗可能是有效且耐受性良好的。方法:本4期、多中心、非介入、回顾性研究分析了美国10个临床中心的病历。在2010年1月1日至2020年8月15日期间,既往成功手术矫正后DC复发≥6个月的患者接受CCH治疗。主要终点是在CCH治疗掌指关节(MP)和近端指间关节(PIP)挛缩的12个月内,从基线开始测量的关节挛缩变化,首次和最后一次临床评估。次要终点是“临床成功率”(关节挛缩减少到0°至5°的百分比)和不良事件。结果在筛选的113例患者中,分析了101例(平均年龄64.1岁,75%为男性)。到DC复发的中位时间为36.0个月。共分析了144个处理过的关节(MP, n = 64; PIP, n = 75;未指定,n = 5)。总体平均(SD)基线挛缩为52°(21°)(MP, 43°[19°];PIP, 61°[20°])。所有关节在最后一次评估时挛缩较基线改善的平均(SD)为38°(21°)(MP, 36°[17°];PIP, 41°[24°]),58%的关节获得临床成功(MP, 75%; PIP, 43%)。所有皮肤撕裂(19%患者中20例)自发消退,50%在≤21天内消退;有一个深屈肌破裂,不需要二次重建。结论:本回顾性分析表明,CCH治疗是一种有效且耐受性良好的非手术治疗复发性术后挛缩的选择,其结果与未手术的患者相当。研究类型/证据水平:治疗性
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引用次数: 0
Associations Between Area Deprivation Index and the Time to Presentation of Scaphoid Fractures 面积剥夺指数与舟状骨骨折出现时间的关系
Q3 Medicine Pub Date : 2026-01-19 DOI: 10.1016/j.jhsg.2025.100932
Aidan M. Lynch BS, MS , Muhammad H. Hamdan BS , Jordan Bauer MD , Rohan V. Rajan BS , Rajendra Singh BS , Joel V. Ferreira MD , Anthony Parrino MD , Craig M. Rodner MD

Purpose

Scaphoid fractures are the most common carpal fractures and are prone to nonunion because of their retrograde blood supply. Delayed diagnosis or treatment increases the risk of nonunion and progression to scaphoid nonunion advanced collapse. Social determinants of health, measured by the area deprivation index (ADI), may contribute to such delays. This study examines the association between ADI, time to presentation, and the presence of nonunion at initial evaluation.

Methods

A retrospective chart review identified 168 patients with suspected scaphoid fractures between January 1, 2018 and June 30, 2025. State-level ADI scores were grouped into the following terciles: least-deprived (LDT), intermediately deprived (IDT), and most deprived (MDT). Patients presenting more than 5 years after injury or without confirmed fractures were excluded, leaving a total of 107 patients. Independent t tests compared the mean time from injury to presentation across ADI terciles, χ2 tests compared the nonunion rates at presentation, and binomial regression assessed whether ADI predicted scaphoid nonunion.

Results

The mean time from injury to presentation increased with deprivation: LDT = 16.9 ± 23.5 days, IDT = 55.1 ± 97.9 days, and MDT = 173.5 ± 364.5 days. Both MDT and IDT patients presented significantly later than LDT patients (P = .0146 and P = .0315, respectively) and had a higher prevalence of nonunion at presentation (P = .025). The ADI independently predicted scaphoid nonunion, with each unit increase in state ADI associated with 23.8% higher odds of nonunion (P = .029).

Conclusions

Patients from socioeconomically deprived communities experienced significantly longer delays in presentation for scaphoid fractures and a higher incidence of nonunion, which may increase the risk of long-term complications such as scaphoid nonunion advanced collapse wrist arthritis. These findings highlight the importance of addressing neighborhood-level disparities to increase access to treatment in time-sensitive injuries such as scaphoid fractures.

Type of study/level of evidence

Prevalence IIIb.
目的:圆锥状骨折是最常见的腕骨骨折,由于其血液供应逆行,容易发生骨不愈合。延迟诊断或治疗会增加骨不连和进展为舟状骨不连晚期塌陷的风险。以地区剥夺指数(ADI)衡量的健康的社会决定因素可能造成这种延误。本研究探讨了初次评估时ADI、出现时间和骨不连之间的关系。方法回顾性分析2018年1月1日至2025年6月30日期间168例疑似舟状骨骨折患者。州一级的ADI得分分为以下三个等级:最不贫困(LDT)、中等贫困(IDT)和最贫困(MDT)。排除伤后5年以上或未确诊骨折的患者,共107例。独立t检验比较了从损伤到出现舟状骨不连的平均时间,χ2检验比较了出现舟状骨不连时的不连率,二项回归评估了ADI是否预测舟状骨不连。结果从损伤到出现的平均时间随剥夺时间的增加而增加:LDT = 16.9±23.5 d, IDT = 55.1±97.9 d, MDT = 173.5±364.5 d。MDT和IDT患者出现时间均明显晚于LDT患者(P = 0.0146和P = 0.0315),且出现骨不连的发生率较高(P = 0.025)。ADI独立预测舟状骨不愈合,ADI状态每增加一个单位,骨不愈合的几率增加23.8% (P = 0.029)。结论来自社会经济贫困社区的患者出现舟状骨骨折的时间明显较长,骨不连的发生率较高,这可能增加长期并发症的风险,如舟状骨不连晚期塌陷腕关节炎。这些发现强调了解决社区水平差异的重要性,以增加对舟状骨骨折等时间敏感损伤的治疗机会。研究类型/证据水平
{"title":"Associations Between Area Deprivation Index and the Time to Presentation of Scaphoid Fractures","authors":"Aidan M. Lynch BS, MS ,&nbsp;Muhammad H. Hamdan BS ,&nbsp;Jordan Bauer MD ,&nbsp;Rohan V. Rajan BS ,&nbsp;Rajendra Singh BS ,&nbsp;Joel V. Ferreira MD ,&nbsp;Anthony Parrino MD ,&nbsp;Craig M. Rodner MD","doi":"10.1016/j.jhsg.2025.100932","DOIUrl":"10.1016/j.jhsg.2025.100932","url":null,"abstract":"<div><h3>Purpose</h3><div>Scaphoid fractures are the most common carpal fractures and are prone to nonunion because of their retrograde blood supply. Delayed diagnosis or treatment increases the risk of nonunion and progression to scaphoid nonunion advanced collapse. Social determinants of health, measured by the area deprivation index (ADI), may contribute to such delays. This study examines the association between ADI, time to presentation, and the presence of nonunion at initial evaluation.</div></div><div><h3>Methods</h3><div>A retrospective chart review identified 168 patients with suspected scaphoid fractures between January 1, 2018 and June 30, 2025. State-level ADI scores were grouped into the following terciles: least-deprived (LDT), intermediately deprived (IDT), and most deprived (MDT). Patients presenting more than 5 years after injury or without confirmed fractures were excluded, leaving a total of 107 patients. Independent <em>t</em> tests compared the mean time from injury to presentation across ADI terciles, χ<sup>2</sup> tests compared the nonunion rates at presentation, and binomial regression assessed whether ADI predicted scaphoid nonunion.</div></div><div><h3>Results</h3><div>The mean time from injury to presentation increased with deprivation: LDT = 16.9 ± 23.5 days, IDT = 55.1 ± 97.9 days, and MDT = 173.5 ± 364.5 days. Both MDT and IDT patients presented significantly later than LDT patients (<em>P</em> = .0146 and <em>P</em> = .0315, respectively) and had a higher prevalence of nonunion at presentation (<em>P</em> = .025). The ADI independently predicted scaphoid nonunion, with each unit increase in state ADI associated with 23.8% higher odds of nonunion (<em>P</em> = .029).</div></div><div><h3>Conclusions</h3><div>Patients from socioeconomically deprived communities experienced significantly longer delays in presentation for scaphoid fractures and a higher incidence of nonunion, which may increase the risk of long-term complications such as scaphoid nonunion advanced collapse wrist arthritis. These findings highlight the importance of addressing neighborhood-level disparities to increase access to treatment in time-sensitive injuries such as scaphoid fractures.</div></div><div><h3>Type of study/level of evidence</h3><div>Prevalence IIIb.</div></div>","PeriodicalId":36920,"journal":{"name":"Journal of Hand Surgery Global Online","volume":"8 2","pages":"Article 100932"},"PeriodicalIF":0.0,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023296","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}
引用次数: 0
Quantification of Articular Surface Involvement During Intramedullary Fixation of the Phalanges 指骨髓内固定过程中关节面受累的定量分析
Q3 Medicine Pub Date : 2026-01-16 DOI: 10.1016/j.jhsg.2025.100928
Julie Mekhail MS, Rhiana Rivas BS, Carolyn A. Ardizzone MD, Jordan P. Pearce MD, Nikalus G. Skipp BS, Deana M. Mercer MD

Purpose

Phalangeal fractures of the hand are the second most common upper-extremity fracture in the United States. Numerous studies have reported on the biomechanical efficacy of intramedullary (IM) hand nail fixation of the phalanges and increased utilization of IM hand nails. During IM fixation, the nail often penetrates the articular cartilage during insertion. This study seeks to quantify the percentage of cartilage involvement created by anterograde and retrograde intramedullary fixation of proximal and middle phalangeal fractures with 3.0 mm and 3.5 mm IM threaded hand nails.

Methods

Thirty-two frozen fingers were studied from eight cadaveric hands. Four different techniques for nail placement were used: (1) retrograde across an unflexed distal interphalangeal joint, (2) retrograde across a flexed distal interphalangeal joint into the middle phalanx, (3) retrograde through a flexed proximal interphalangeal joint into the proximal phalanx, and 4) antegrade through the metacarpal phalangeal joint into the proximal phalanx. Clinical photographs and fluoroscopy images were taken for each specimen, and the articular cartilage damage was quantified using Image J software.

Results

The average articular involvement using intramedullary hand nails for phalangeal fixation was less than 10% of the articular surface regardless of nail placement technique and nail size (mean range 3.56% to 9.73%). The damaged area was always greater with the 3.5 mm than the 3.0 mm nails.

Conclusions

Our results are consistent with the literature. Our study is unique in that we compare the different methods of hand nail insertion and the different diameter hand nails and evaluate the degree of articular surface involvement in an approach that has not been tested on cadaveric models. Phalanx fracture fixation with intramedullary hand nails may be beneficial, as it has acceptable joint cartilage damage based on our study data.

Type of study/level of evidence

Bench research/laboratory study V.
目的手部指骨骨折是美国第二大最常见的上肢骨折。许多研究报道了髓内(IM)手钉固定指骨的生物力学效果和IM手钉的使用增加。在内固定过程中,钉常穿透关节软骨。本研究旨在量化用3.0 mm和3.5 mm IM螺纹手钉顺行和逆行髓内固定近端和中端指骨骨折所造成的软骨受累百分比。方法对8只尸体的32个冰冻手指进行研究。采用了四种不同的钉入技术:(1)逆行穿过不屈曲的远端指间关节,(2)逆行穿过屈曲的远端指间关节进入中指骨,(3)逆行通过屈曲的近端指间关节进入近端指骨,以及4)顺行通过掌指骨关节进入近端指骨。每个标本拍摄临床照片和透视图像,使用Image J软件对关节软骨损伤进行量化。结果采用髓内钉固定指骨,不论钉位方式和钉位大小,平均受累关节面小于关节面10%(平均范围3.56% ~ 9.73%)。3.5 mm钉的损伤面积大于3.0 mm钉。结论sour结果与文献一致。我们的研究是独一无二的,因为我们比较了不同的手指甲插入方法和不同直径的手指甲,并评估了关节面受损伤的程度,这种方法尚未在尸体模型上测试过。髓内手钉固定指骨骨折可能是有益的,因为根据我们的研究数据,它具有可接受的关节软骨损伤。研究类型/证据水平工作台研究/实验室研究
{"title":"Quantification of Articular Surface Involvement During Intramedullary Fixation of the Phalanges","authors":"Julie Mekhail MS,&nbsp;Rhiana Rivas BS,&nbsp;Carolyn A. Ardizzone MD,&nbsp;Jordan P. Pearce MD,&nbsp;Nikalus G. Skipp BS,&nbsp;Deana M. Mercer MD","doi":"10.1016/j.jhsg.2025.100928","DOIUrl":"10.1016/j.jhsg.2025.100928","url":null,"abstract":"<div><h3>Purpose</h3><div>Phalangeal fractures of the hand are the second most common upper-extremity fracture in the United States. Numerous studies have reported on the biomechanical efficacy of intramedullary (IM) hand nail fixation of the phalanges and increased utilization of IM hand nails. During IM fixation, the nail often penetrates the articular cartilage during insertion. This study seeks to quantify the percentage of cartilage involvement created by anterograde and retrograde intramedullary fixation of proximal and middle phalangeal fractures with 3.0 mm and 3.5 mm IM threaded hand nails.</div></div><div><h3>Methods</h3><div>Thirty-two frozen fingers were studied from eight cadaveric hands. Four different techniques for nail placement were used: (1) retrograde across an unflexed distal interphalangeal joint, (2) retrograde across a flexed distal interphalangeal joint into the middle phalanx, (3) retrograde through a flexed proximal interphalangeal joint into the proximal phalanx, and 4) antegrade through the metacarpal phalangeal joint into the proximal phalanx. Clinical photographs and fluoroscopy images were taken for each specimen, and the articular cartilage damage was quantified using Image J software.</div></div><div><h3>Results</h3><div>The average articular involvement using intramedullary hand nails for phalangeal fixation was less than 10% of the articular surface regardless of nail placement technique and nail size (mean range 3.56% to 9.73%). The damaged area was always greater with the 3.5 mm than the 3.0 mm nails.</div></div><div><h3>Conclusions</h3><div>Our results are consistent with the literature. Our study is unique in that we compare the different methods of hand nail insertion and the different diameter hand nails and evaluate the degree of articular surface involvement in an approach that has not been tested on cadaveric models. Phalanx fracture fixation with intramedullary hand nails may be beneficial, as it has acceptable joint cartilage damage based on our study data.</div></div><div><h3>Type of study/level of evidence</h3><div>Bench research/laboratory study V.</div></div>","PeriodicalId":36920,"journal":{"name":"Journal of Hand Surgery Global Online","volume":"8 2","pages":"Article 100928"},"PeriodicalIF":0.0,"publicationDate":"2026-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977646","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}
引用次数: 0
Achilles Allograft in the Upper Extremity: A Systematic Review 上肢跟腱同种异体移植:系统回顾
Q3 Medicine Pub Date : 2026-01-16 DOI: 10.1016/j.jhsg.2025.100929
Mahmoud Mahmoud MBBS , Sanjum Singh MD , Yagiz Ozdag MD , Ryan Kempski BA , Louis C. Grandizio DO

Purpose

Achillies tendon allografts (ATAs) are used in a variety of upper-extremity reconstructive procedures. The purpose of this study was to systematically review the existing literature on the complications, reoperation rates and outcomes associated with the use of ATAs in upper-extremity reconstructions.

Methods

Following Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines, a systematic review was conducted of studies published between January 1990 and August 2024. Eligible studies included adult patients who underwent shoulder, elbow and wrist tendon reconstruction using ATAs to provide insight into the overall performance of ATA reconstruction in the upper extremity. Studies which did not report complications and/or functional outcomes were excluded. Retrospective, prospective, and randomized controlled trials were included, whereas cadaveric, biomechanical, and nonhuman studies were excluded.

Results

A total of 23 studies comprising 408 cases met inclusion criteria. The most common indications for ATA use were distal biceps reconstruction (26%), irreparable rotator cuff tears (24%) and failed distal ulna resection (20%). The overall complication rate was 19%, with graft-related failure (43%) and infection (20%) as the most frequent complications. Reoperation was required in 10% of cases; predominantly because of graft failure (42%) and deep infection (29%). Despite these complications, patient-reported outcomes were favorable, with a mean postoperative-visual analog scale score of two and a Mayo Elbow Performance Score of 88, indicating substantial pain relief and functional improvement.

Conclusions

ATAs in upper-extremity reconstructive procedures appear to result in low levels of postoperative pain and improvements in function. However, overall complication and reoperations rates following ATA use were 19% and 10%, respectively.

Clinical relevance

ATA is advantageous in the sense that it can be used for a variety of shoulder, elbow, and wrist procedures; however, surgeons need to carefully weigh the benefits of decreased donor-site morbidity against the relatively high rates of complications.
目的跟腱异体移植(ATAs)用于各种上肢重建手术。本研究的目的是系统地回顾与ATAs在上肢重建中使用相关的并发症、再手术率和结果的现有文献。方法按照系统评价和荟萃分析指南的首选报告项目,对1990年1月至2024年8月间发表的研究进行系统评价。符合条件的研究包括使用ATA进行肩、肘和腕肌腱重建的成年患者,以深入了解上肢ATA重建的整体性能。未报告并发症和/或功能结局的研究被排除。包括回顾性、前瞻性和随机对照试验,而排除尸体、生物力学和非人类研究。结果23项研究408例符合纳入标准。ATA最常见的适应症是肱二头肌远端重建(26%)、不可修复的肩袖撕裂(24%)和尺骨远端切除失败(20%)。总并发症发生率为19%,其中移植物相关衰竭(43%)和感染(20%)是最常见的并发症。10%的病例需要再手术;主要原因是移植物失败(42%)和深度感染(29%)。尽管有这些并发症,但患者报告的结果是有利的,术后视觉模拟评分平均为2分,梅奥肘部表现评分为88分,表明疼痛明显缓解和功能改善。结论在上肢再造术中应用asa可减轻术后疼痛,改善肢体功能。然而,ATA使用后的并发症和再手术率分别为19%和10%。临床相关性:ata的优势在于它可以用于各种肩部、肘部和腕部手术;然而,外科医生需要仔细权衡降低供体部位发病率的好处和相对较高的并发症发生率。
{"title":"Achilles Allograft in the Upper Extremity: A Systematic Review","authors":"Mahmoud Mahmoud MBBS ,&nbsp;Sanjum Singh MD ,&nbsp;Yagiz Ozdag MD ,&nbsp;Ryan Kempski BA ,&nbsp;Louis C. Grandizio DO","doi":"10.1016/j.jhsg.2025.100929","DOIUrl":"10.1016/j.jhsg.2025.100929","url":null,"abstract":"<div><h3>Purpose</h3><div>Achillies tendon allografts (ATAs) are used in a variety of upper-extremity reconstructive procedures. The purpose of this study was to systematically review the existing literature on the complications, reoperation rates and outcomes associated with the use of ATAs in upper-extremity reconstructions.</div></div><div><h3>Methods</h3><div>Following Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines, a systematic review was conducted of studies published between January 1990 and August 2024. Eligible studies included adult patients who underwent shoulder, elbow and wrist tendon reconstruction using ATAs to provide insight into the overall performance of ATA reconstruction in the upper extremity. Studies which did not report complications and/or functional outcomes were excluded. Retrospective, prospective, and randomized controlled trials were included, whereas cadaveric, biomechanical, and nonhuman studies were excluded.</div></div><div><h3>Results</h3><div>A total of 23 studies comprising 408 cases met inclusion criteria. The most common indications for ATA use were distal biceps reconstruction (26%), irreparable rotator cuff tears (24%) and failed distal ulna resection (20%). The overall complication rate was 19%, with graft-related failure (43%) and infection (20%) as the most frequent complications. Reoperation was required in 10% of cases; predominantly because of graft failure (42%) and deep infection (29%). Despite these complications, patient-reported outcomes were favorable, with a mean postoperative-visual analog scale score of two and a Mayo Elbow Performance Score of 88, indicating substantial pain relief and functional improvement.</div></div><div><h3>Conclusions</h3><div>ATAs in upper-extremity reconstructive procedures appear to result in low levels of postoperative pain and improvements in function. However, overall complication and reoperations rates following ATA use were 19% and 10%, respectively.</div></div><div><h3>Clinical relevance</h3><div>ATA is advantageous in the sense that it can be used for a variety of shoulder, elbow, and wrist procedures; however, surgeons need to carefully weigh the benefits of decreased donor-site morbidity against the relatively high rates of complications.</div></div>","PeriodicalId":36920,"journal":{"name":"Journal of Hand Surgery Global Online","volume":"8 2","pages":"Article 100929"},"PeriodicalIF":0.0,"publicationDate":"2026-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977653","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}
引用次数: 0
The Dorsal Scapholunate Ligament Complex: Anatomical Description and Correlation with Lunate Morphology 舟月骨背韧带复合体:解剖描述及其与月骨形态的相关性
Q3 Medicine Pub Date : 2026-01-13 DOI: 10.1016/j.jhsg.2025.100921
Sandro Castro Adeodato MD, MSc , Nathalia Sundin Palmeira de Oliveira MD, PhD , André Luiz de Campos Pessoa MD, PhD , Moyses Messias Souza de Sant’Anna MSc, PhD , Bernardo Couto Neto MSc, PhD , Liszt Palmeira de Oliveira MSc, PhD

Purpose

This anatomical study aimed to describe, quantify, and topographically correlate the insertions of the dorsal scapholunate complex (DSLC) components, specifically the dorsal scapholunate interosseous ligament (dSLIL), dorsal radiocarpal (DRC), dorsal intercarpal (DIC), and dorsal capsuloligamentous scapholunate septum (DCSS), with each other and in relation to lunate morphology (types I and II).

Methods

Twenty-seven cadaveric wrists (23 formalin fixed and 4 fresh frozen) were systematically dissected. Measurements of width and thickness for dSLIL, DRC, DIC, and DCSS insertions were performed using a 0.05-mm precision caliper. Lunate morphology was classified (Viegas type I or II). Statistical analysis included descriptive statistics, independent samples t tests or Mann-Whitney U tests for intergroup comparisons, and paired-sample tests for dSLIL insertion site differences.

Results

DRC width at the lunate insertion was significantly greater in type II lunates compared to type I (P < .001, Cohen’s d = –1.647). No other DSLC component measurements differed significantly between lunate types. The dSLIL showed no notably difference in dimensions between its scaphoid and lunate insertions. Topographically, the scaphoid apex was identified as a consistent insertion site for dSLIL and DIC, with the DCSS located anterior and slightly ulnar to it.

Conclusions

This study provides a detailed morphological characterization of the DSLC components and their topographical relationships. Key findings include a more robust DRC at the lunate insertion in type II lunates and consistent insertion patterns of dSLIL and DIC at the scaphoid apex.

Clinical relevance

The observed robustness of the DRC in type II lunates suggests a potential protective effect against dorsal intercalated segment instability collapse. The precise anatomical data regarding DSLC component insertions offer crucial guidance for improving arthroscopic diagnostic accuracy and refining surgical reconstruction techniques for scapholunate instability.
目的:本解剖学研究旨在描述、量化舟月骨背复合体(DSLC)组成部分的插入,特别是舟月骨背骨间韧带(dSLIL)、桡腕背(DRC)、腕背间韧带(DIC)和舟月骨背囊寡聚隔膜(DCSS)彼此之间以及与月骨形态(I型和II型)相关的插入,并在地形上进行关联。方法系统解剖27例尸体手腕(23例福尔马林固定,4例新鲜冷冻)。使用0.05 mm精密卡尺测量dSLIL、DRC、DIC和dcs插入物的宽度和厚度。月骨形态分为Viegas I型和II型。统计分析包括描述性统计、组间比较的独立样本t检验或Mann-Whitney U检验、dSLIL插入位点差异的成对样本检验。结果II型月骨插入处drc宽度明显大于I型月骨插入处(P < 0.001, Cohen’s d = -1.647)。其他DSLC成分测量在月骨类型之间没有显著差异。dSLIL在舟状骨和月状骨插入处的尺寸无显著差异。地形学上,舟状骨尖端被确定为dSLIL和DIC的一致插入点,DCSS位于其前方,略尺侧。结论本研究提供了DSLC组分的详细形态表征及其地形关系。主要发现包括II型月骨的月骨止点处有更强健的DRC,舟状骨尖端处dSLIL和DIC的植入模式一致。观察到的II型月骨DRC的稳健性表明其对背插节段不稳定性塌陷具有潜在的保护作用。关于DSLC假体插入的精确解剖数据为提高关节镜诊断准确性和改进舟月骨不稳定的手术重建技术提供了重要指导。
{"title":"The Dorsal Scapholunate Ligament Complex: Anatomical Description and Correlation with Lunate Morphology","authors":"Sandro Castro Adeodato MD, MSc ,&nbsp;Nathalia Sundin Palmeira de Oliveira MD, PhD ,&nbsp;André Luiz de Campos Pessoa MD, PhD ,&nbsp;Moyses Messias Souza de Sant’Anna MSc, PhD ,&nbsp;Bernardo Couto Neto MSc, PhD ,&nbsp;Liszt Palmeira de Oliveira MSc, PhD","doi":"10.1016/j.jhsg.2025.100921","DOIUrl":"10.1016/j.jhsg.2025.100921","url":null,"abstract":"<div><h3>Purpose</h3><div>This anatomical study aimed to describe, quantify, and topographically correlate the insertions of the dorsal scapholunate complex (DSLC) components, specifically the dorsal scapholunate interosseous ligament (dSLIL), dorsal radiocarpal (DRC), dorsal intercarpal (DIC), and dorsal capsuloligamentous scapholunate septum (DCSS), with each other and in relation to lunate morphology (types I and II).</div></div><div><h3>Methods</h3><div>Twenty-seven cadaveric wrists (23 formalin fixed and 4 fresh frozen) were systematically dissected. Measurements of width and thickness for dSLIL, DRC, DIC, and DCSS insertions were performed using a 0.05-mm precision caliper. Lunate morphology was classified (Viegas type I or II). Statistical analysis included descriptive statistics, independent samples <em>t</em> tests or Mann-Whitney U tests for intergroup comparisons, and paired-sample tests for dSLIL insertion site differences.</div></div><div><h3>Results</h3><div>DRC width at the lunate insertion was significantly greater in type II lunates compared to type I (<em>P</em> &lt; .001, Cohen’s d = –1.647). No other DSLC component measurements differed significantly between lunate types. The dSLIL showed no notably difference in dimensions between its scaphoid and lunate insertions. Topographically, the scaphoid apex was identified as a consistent insertion site for dSLIL and DIC, with the DCSS located anterior and slightly ulnar to it.</div></div><div><h3>Conclusions</h3><div>This study provides a detailed morphological characterization of the DSLC components and their topographical relationships. Key findings include a more robust DRC at the lunate insertion in type II lunates and consistent insertion patterns of dSLIL and DIC at the scaphoid apex.</div></div><div><h3>Clinical relevance</h3><div>The observed robustness of the DRC in type II lunates suggests a potential protective effect against dorsal intercalated segment instability collapse. The precise anatomical data regarding DSLC component insertions offer crucial guidance for improving arthroscopic diagnostic accuracy and refining surgical reconstruction techniques for scapholunate instability.</div></div>","PeriodicalId":36920,"journal":{"name":"Journal of Hand Surgery Global Online","volume":"8 2","pages":"Article 100921"},"PeriodicalIF":0.0,"publicationDate":"2026-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977647","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}
引用次数: 0
Cellular Bone Matrix for the Treatment of Considerable Bone Loss in Two Metacarpal Fractures 细胞骨基质治疗两例掌骨骨折严重骨丢失
Q3 Medicine Pub Date : 2026-01-13 DOI: 10.1016/j.jhsg.2025.100924
Serge Andreou MD, MS, Ameen Suhrawardy MD, Pranav Khambete MD, Andrew Tsai MD
High-energy mechanisms that lead to hand fractures can create substantial bony defects that are not amenable to traditional treatments. Management options include autograft, allograft, and bone graft substitutes such as calcium sulfate/phosphate cements, which provide good results when used appropriately however each strategy has limitations. Cellular bone matrices (CBMs) are newer graft substitutes designed to supply osteogenic cells along with scaffold and inductive factors. We present a case series of metacarpal fractures with considerable ballistic-related defects treated with CBM augmentation. Two male patients (mean age 32 years) sustained second metacarpal fractures from high-caliber ballistic injury and were followed for 19 months. One required later tenolysis and dorsal capsulotomy for stiffness. Both demonstrated full radiographic union and CBM incorporation on computed tomography. This series shows excellent radiographic outcomes using CBM for metacarpal defects. Although further study is needed, to our knowledge, this is the first published evidence supporting CBM as an effective option for these injuries.
导致手部骨折的高能机制可以产生大量的骨缺损,这是传统治疗无法解决的。治疗选择包括自体移植物、同种异体移植物和骨移植物替代品,如硫酸钙/磷酸盐水泥,在适当使用时效果良好,但每种策略都有局限性。细胞骨基质(CBMs)是一种新型的骨移植替代物,用于提供成骨细胞以及支架和诱导因子。我们提出了一个病例系列掌骨骨折相当大的弹道相关的缺陷治疗CBM增强。2例男性患者(平均年龄32岁)因大口径弹道伤导致第二次掌骨骨折,随访19个月。一种需要后期肌腱松解和背部囊切开术治疗僵硬。在计算机断层扫描上,两者均表现出完全的x线片愈合和CBM融合。这个系列显示了使用CBM治疗掌骨缺损的良好影像学结果。虽然还需要进一步的研究,但据我们所知,这是首次发表的证据支持CBM是治疗这些损伤的有效选择。
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引用次数: 0
Outcomes After Proximal Humerus Surgery: Does Regional Anesthesia Usage Matter? 肱骨近端手术后的结果:区域麻醉的使用是否重要?
Q3 Medicine Pub Date : 2026-01-13 DOI: 10.1016/j.jhsg.2025.100920
Bill Young BS, Amy L. Ladd MD

Purpose

Regional anesthesia is commonly used for intraoperative pain control during proximal humerus fracture surgery. We hypothesized that patients undergoing proximal humerus fracture surgery who received regional anesthesia would have increased postoperative emergency department (ED) utilization, increased perioperative opioid prescriptions, and greater incidence of persistent postoperative opioid prescriptions compared with those who received general anesthesia.

Methods

We retrospectively identified patients ≥18 years of age with a closed proximal humerus fracture undergoing either open reduction internal fixation (ORIF) or shoulder arthroplasty within 21 days of the fracture. We used International Classification of Diseases (ICD) 9/10 codes to identify patients using an administrative claims database. We categorized and then propensity-score matched patients based on receipt of regional anesthesia during surgery. Our first outcome was any instance of an ED visit within 7 and 30 days after surgery. Secondary outcomes included perioperative opioid prescriptions and the incidence of persistent opioid prescriptions. Multivariable regression models were used to assess the risk of an ED visit or persistent opioid usage based on the receipt of intraoperative regional anesthesia, adjusting for demographics and comorbidities.

Results

In total, 10,580 (33.3%) ORIF patients and 3,299 (33.6%) shoulder arthroplasty patients received regional anesthesia during surgery. Regional anesthesia was associated with an increased 7-day ED visit incidence compared to no regional anesthesia receipt for ORIF patients (3.3% vs 2.3%) and shoulder arthroplasty patients (2.7% vs 1.9%) (P < .001 for both). In the 30-day postoperative window, regional anesthesia was associated with an increased incidence of an ED visit for ORIF patients (7.1% vs 5.8%) and shoulder arthroplasty patients (6.6% vs 5.2%) (P < .001 for both). Regional anesthesia was also associated with greater perioperative opioid prescriptions across both surgeries (P < .05).

Conclusions

Further research should explore interventions for proximal humerus fracture surgery patients who receive regional anesthesia to reduce potentially preventable ED visits and opioid-related adverse events.

Type of study/level of evidence

Therapeutic III.
目的在肱骨近端骨折手术中,常用区域麻醉控制术中疼痛。我们假设,与接受全身麻醉的患者相比,接受区域麻醉的肱骨近端骨折手术患者术后急诊科(ED)使用率增加,围手术期阿片类药物处方增加,术后持续阿片类药物处方的发生率更高。方法回顾性研究年龄≥18岁的闭合性肱骨近端骨折患者,在骨折后21天内行切开复位内固定(ORIF)或肩关节置换术。我们使用国际疾病分类(ICD) 9/10代码通过行政索赔数据库识别患者。我们对患者进行分类,然后根据手术期间接受区域麻醉的情况进行倾向评分匹配。我们的第一个结果是术后7天和30天内急诊室就诊的情况。次要结局包括围手术期阿片类药物处方和持续阿片类药物处方的发生率。使用多变量回归模型评估基于术中区域麻醉的急诊科就诊或持续使用阿片类药物的风险,并根据人口统计学和合并症进行调整。结果10580例(33.3%)ORIF患者和3299例(33.6%)肩关节置换术患者在术中接受了区域麻醉。与未接受区域麻醉的ORIF患者(3.3% vs 2.3%)和肩关节置换术患者(2.7% vs 1.9%)相比,区域麻醉与7天ED就诊发生率增加相关(两者的P <; 0.001)。在术后30天内,区域麻醉与ORIF患者(7.1% vs 5.8%)和肩关节置换术患者(6.6% vs 5.2%)急诊科就诊发生率增加相关(两者P <; 0.001)。在两种手术中,区域麻醉也与更多的围手术期阿片类药物处方相关(P < 0.05)。结论对于肱骨近端骨折手术接受区域麻醉的患者,应进一步研究干预措施,以减少可能可预防的急诊科就诊和阿片类药物相关不良事件。研究类型/证据水平:治疗性
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引用次数: 0
Intramedullary Threaded Nail Versus Dorsal Plate and Screw Fixation of Comminuted Metacarpal Shaft Fractures: A Cadaveric Biomechanical Study 髓内螺纹钉与背侧钢板螺钉固定粉碎性掌骨骨干骨折:尸体生物力学研究
Q3 Medicine Pub Date : 2026-01-12 DOI: 10.1016/j.jhsg.2025.100925
Andrew D. Allen MD , Alexander D. Jeffs MD , Yukun Zhang PhD , Stephen M. Himmelberg MD , Zohair S. Zaidi MD , Nathaniel C. Adams BA , Bradley J. Lauck BA , Matthew Fisher PhD , J. Megan M. Patterson MD , Reid W. Draeger MD

Purpose

Indications are expanding for the use of intramedullary threaded nail (IMTN) fixation in metacarpal fractures. We hypothesized that IMTN fixation would have superior bending stiffness compared to dorsal plate and screw fixation and provide sufficient stability to withstand cyclic loading comparable with early range of motion.

Methods

Index, long, ring, and small finger metacarpals were harvested from matched pair cadaveric hands. A midshaft 1.75 mm transverse gap was created to simulate a comminuted fracture. Specimens were randomized into two groups for fixation with either a retrograde IMTN or dorsal plate and screws. Specimens underwent three-point bend testing with an Instron. Each specimen was cyclically loaded at 70 N for 2,000 cycles (composite grasp), followed by 120 N for 2,000 cycles (tip pinch). Specimens were then loaded to failure. Outcomes included cycles to failure, bending stiffness, peak load to failure, and location of failure.

Results

Bending stiffness was significantly greater in the IMTN group compared to the plate group (136.71 ± 24.19 N/mm vs 39.89 ± 14.08 N/mm). Peak load to failure was greater in the plate group, but this difference was not statistically significant (365.33 ± 79.85 N vs 598.11 ± 372.76 N). During the cyclic loading phases, all specimens in the IMTN group completed the 70 N and 120 N loading phases without failure. In the plate group, two of nine specimens progressed to catastrophic failure during the 120 N cyclic loading phase.

Conclusions

In a comminuted metacarpal shaft fracture model, IMTN fixation had significantly greater bending stiffness and more consistent load to failure characteristics compared to dorsal plate and screw fixation.

Clinical relevance

IMTN fixation provided sufficient stability in comminuted metacarpal shaft fractures to withstand cyclic forces consistent with early range of motion, whereas dorsal plate and screw fixation demonstrated more variable results.
目的髓内螺纹钉(IMTN)内固定治疗掌骨骨折的适应症不断扩大。我们假设与背侧钢板和螺钉固定相比,IMTN固定具有更好的弯曲刚度,并提供足够的稳定性来承受与早期活动范围相当的循环载荷。方法取配对双手食指、长指、无名指和小指掌骨。为了模拟粉碎性骨折,在中轴上形成了一个1.75 mm的横向间隙。将标本随机分为两组,用逆行IMTN或背侧钢板和螺钉固定。用Instron进行三点弯曲试验。每个标本在70 N下循环加载2000次(复合夹紧),然后在120 N下循环加载2000次(尖端夹紧)。然后将试件加载至失效。结果包括失效周期、弯曲刚度、失效峰值载荷和失效位置。结果IMTN组的弯曲刚度明显高于钢板组(136.71±24.19 N/mm vs 39.89±14.08 N/mm)。钢板组的峰值负荷更大,但差异无统计学意义(365.33±79.85 N vs 598.11±372.76 N)。在循环加载阶段,IMTN组所有试件均完成了70 N和120 N的加载阶段,均未发生破坏。在板组中,9个试件中有2个在120 N循环加载阶段发展为灾难性破坏。结论在粉碎性掌骨骨折模型中,IMTN固定比背侧钢板和螺钉固定具有更大的弯曲刚度和更一致的载荷-破坏特征。imtn固定在粉碎性掌骨骨干骨折中提供了足够的稳定性,以承受与早期活动范围一致的循环力,而背侧钢板和螺钉固定表现出更多的变化结果。
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引用次数: 0
期刊
Journal of Hand Surgery Global Online
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