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2.
Artigo em Inglês | MEDLINE | ID: mdl-39197079

RESUMO

PURPOSE: The illicit injection of xylazine has recently been designated as an emerging public health threat. The use of this drug is associated with devastating soft-tissue necrosis that may lead to limb amputation. This study aimed to (1) report cases of soft-tissue injury from xylazine and (2) describe a staging and management algorithm for wounds related to xylazine use. METHODS: A retrospective review was conducted to identify patients treated for xylazine-related soft-tissue necrosis at a trauma center. Clinical cases, treatment strategy, and available outcomes were presented. In addition, a comprehensive literature search was conducted using the keywords "xylazine" and "soft tissue." RESULTS: The management of seven patients with xylazine-related upper extremity soft-tissue necrosis was included, in addition to summarizing findings of five studies reporting on 13 additional cases. These cases were managed with local wound care (2 patients), soft-tissue reconstruction (4 patient), osseous reconstruction (1 patient), and limb amputation (10 patients). DISCUSSION: Acute treatment of xylazine-related soft-tissue necrosis is ideal to minimize morbidity and prevent limb loss. Management strategies of these wounds should be based on the depth of tissue involvement. Superficial ulceration involving the skin and subcutaneous tissue (Stage 1) should be managed with local wound care. Deeper ulceration involving tendons and/or muscle (Stage 2) requires surgical débridement and soft-tissue reconstruction. Deeper ulceration involving bone (Stage 3) requires osseous débridement and reconstruction. Finally, when all tissues in the extremity are involved (Stage 4), amputation is often necessary.

3.
Artigo em Inglês | MEDLINE | ID: mdl-39136941

RESUMO

BACKGROUND: Electric scooters (e-scooters) have become a widely adopted form of transportation. Information regarding the timing, conditions, and context associated with increased frequency of e-scooter-related injuries could inform policy that may potentially reduce associated injuries and healthcare costs. However, this information is lacking, as most research to date has focused on the injury patterns sustained while using e-scooters rather than context. We sought to evaluate these factors in an urban setting and describe how these are evolving over time, as such information may help guide future safety initiatives. QUESTIONS/PURPOSES: (1) How has the epidemiology of e-scooter-related injuries in Denver, CO, USA, changed over time? (2) What are the associated hospital charges to treat patients with these injuries? (3) What circumstances are associated with an increased frequency of e-scooter-related injuries and higher accompanying hospital charges? METHODS: A retrospective study at a Level 1 trauma center in Denver, CO, USA, examined trends in e-scooter-related injuries from January 1, 2020, to November 1, 2023. Patients were identified by the key terms "e-scooter crash" or "scooter" within their emergency department/urgent care visit notes. Patient demographic and injury characteristics and hospital data (admission and hospital charges) were analyzed. Patients who sustained injuries from devices other than stand-up e-scooters or who did not have complete records available for analysis were excluded. The epidemiologic data on e-scooter-related injuries were quantified for each year within the study period, and descriptive analyses were performed to assess patient and injury characteristics, including age, gender, and fracture characteristics. Hospital charges were calculated using the mean annual sum of hospital charges associated with the treatment for e-scooter-related injuries. Circumstances influencing the frequency of injury and magnitude of hospital charges were assessed based on the timing of presentation to the emergency department or urgent care. We recognize that charge may have little or no direct relationship to true cost, but we believe that within one hospital system it represents a reasonable metric for comparative resource utilization. Injury frequency by time of the day and day of the week were compared using chi-square goodness-of-fit analyses. The value of hospital charges associated with e-scooter-related injuries was compared between patients presenting with alcohol intoxication and those who were not intoxicated. RESULTS: In all, 2424 patients were identified as having e-scooter-related injuries (58% [1405] men, 42% [1019] women, median (IQR) age 30 years [25 to 37 years]). The number of annual e-scooter-related injuries during the years 2020 to 2023 were 273 in 2020, 736 in 2021, 758 in 2022, and 657 in 2023 (only 10 months). From 2020 to 2023, the mean annual sum of hospital charges for treatment of e-scooter-related injuries was USD 10.4 million; USD 6.4 million in 2020, USD 11.5 million in 2021, USD 11.9 million in 2022, and USD 10.9 million in 2023 (only 10 months). Hospital charges associated with orthopaedic e-scooter-related injuries amounted to a mean annual sum of USD 3.6 million over the 4-year study period; USD 1.5 million in 2020, USD 3.9 million in 2021, USD 4.5 million in 2022, and USD 4.1 million in 2023 (only 10 months). Forty-five percent (1098) of all e-scooter-related injuries occurred between 7 PM and 3 AM, and 44% (1064) of them occurred over the weekend. The treatment of e-scooter-related injuries incurred higher hospital charges if injuries occurred during night hours (median [IQR] USD 10,459 [4779 to 16,423]) compared with early morning (USD 4973 [1178 to 11,671]) or daytime hours (USD 4871 [1059 to 11,673]; p < 0.001), or while patients were intoxicated (USD 13,404 [10,346 to 22,525]) compared with those who were not intoxicated (USD 6132 [2612 to 13,620]; p < 0.001). CONCLUSION: E-scooter-related injuries are increasing in frequency and occur most commonly during nighttime and weekend hours. Total hospital charges to treat these injuries are also increasing annually, with the highest charges observed during evening hours and in patients presenting with alcohol intoxication. These results may help inform e-scooter awareness initiatives and policy reform to place restrictions on e-scooter use during periods of highest injury frequency and healthcare charges. Further research related to the efficacy of implementing e-scooter restrictions is needed. Future observational studies evaluating time of injury compared with presentation for treatment could help to provide a more precise understanding of the epidemiology of these injuries. LEVEL OF EVIDENCE: Level IV, prognostic study.

4.
Artigo em Inglês | MEDLINE | ID: mdl-38916579

RESUMO

Recurrent instability following thumb ulnar collateral ligament repair or reconstruction may result in pain and poor function. The use of certain suture anchors during the index procedure may predispose patients to the development of osteolysis and subsequent fixation failure. In this article, we describe an effective surgical technique for revision reconstruction of ulnar collateral ligament injuries using autograft and suture suspensionplasty. This technique restores joint stability and allows functional recovery with minimal postoperative complications.

5.
J Am Acad Orthop Surg ; 32(15): 669-680, 2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-38709855

RESUMO

Elbow stability arises from a combination of bony congruity, static ligamentous and capsular restraints, and dynamic muscular activation. Elbow trauma can disrupt these static and dynamic stabilizers leading to predictable patterns of instability; these patterns are dependent on the mechanism of injury and a progressive failure of anatomic structures. An algorithmic approach to the diagnosis and treatment of complex elbow fracture-dislocation injuries can improve the diagnostic assessment and reconstruction of the bony and ligamentous restraints to restore a stable and functional elbow. Achieving optimal outcomes requires a comprehensive understanding of pertinent local and regional anatomy, the altered mechanics associated with elbow injury, versatility in surgical approaches and fixation methods, and a strategic rehabilitation plan.


Assuntos
Algoritmos , Lesões no Cotovelo , Articulação do Cotovelo , Humanos , Articulação do Cotovelo/cirurgia , Articulação do Cotovelo/diagnóstico por imagem , Fratura-Luxação/cirurgia , Fratura-Luxação/diagnóstico por imagem , Instabilidade Articular/cirurgia , Instabilidade Articular/etiologia , Luxações Articulares/cirurgia , Luxações Articulares/diagnóstico por imagem , Fraturas Ósseas/cirurgia , Fraturas Ósseas/diagnóstico por imagem , Fixação Interna de Fraturas/métodos , Fraturas do Cotovelo
6.
Eur J Orthop Surg Traumatol ; 34(4): 1971-1977, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38488935

RESUMO

PURPOSE: To compare dermal regenerative template (DRT), with and without split-thickness skin-grafting (STSG), and urinary bladder matrix (UBM) for coverage of lower extremity wounds. METHODS: A retrospective review of 56 lower extremity wounds treated with either DRT and STSG (DRT-S) (n = 18), DRT only (n = 17), or UBM only (n = 21). Patient characteristics, comorbidities, American Society of Anesthesiology (ASA) classification, injury characteristics, wound characteristics, use of negative pressure wound therapy, surgical details, postoperative care, and failure of primary wound coverage procedure were documented. RESULTS: The DRT group, compared to the DRT-S group, was older [median difference (MD) 17.4 years, 95% confidence interval (CI) 9.1-25.7; p = 0.0008], more diabetic (proportional difference (PD) 54.2%, CI 21.2-76.1%; p = 0.002), had smaller wounds (MD - 91.0 cm2, CI - 125.0 to - 38.0; p = 0.0008), more infected wounds (PD 49.0%, CI 16.1-71.7%; p = 0.009), a shorter length of stay after coverage (MD - 5.0 days, CI - 29.0 to - 1.0; p = 0.005), and no difference in primary wound coverage failure (41.2% vs. 55.6%; p = 0.50). The UBM group, compared to the DRT group, was younger (MD - 6.8 years; CI - 13.5 to - 0.1; p = 0.04), had fewer patients with an ASA > 2 (PD - 35.0%, CI - 55.2% to - 7.0%; p = 0.02), diabetes (PD - 49.2%, CI - 72.4% to - 17.6%; p = 0.003), and had no difference in primary wound coverage failure (36.4% vs. 41.2%; p = 1.0). Failure of primary wound coverage was found to only be associated with larger wound surface areas (MD 22.0 cm2, CI 4.0-90.0; p = 0.01). CONCLUSIONS: DRT and UBM coverage had similar rates of primary wound coverage failure for lower extremity wounds. LEVEL OF EVIDENCE: Diagnostic, Level III.


Assuntos
Transplante de Pele , Cicatrização , Humanos , Estudos Retrospectivos , Masculino , Transplante de Pele/métodos , Feminino , Pessoa de Meia-Idade , Adulto , Cicatrização/fisiologia , Idoso , Tratamento de Ferimentos com Pressão Negativa/métodos , Bexiga Urinária/cirurgia , Bexiga Urinária/lesões , Traumatismos da Perna/cirurgia , Extremidade Inferior/lesões , Adulto Jovem
7.
J Bone Joint Surg Am ; 106(7): 600-607, 2024 Apr 03.
Artigo em Inglês | MEDLINE | ID: mdl-38147503

RESUMO

BACKGROUND: Changes in intra-articular pressure have not been previously described in relation to the management of radial head fractures. We hypothesized that pressure within the radiocapitellar and ulnotrochlear joints would increase with progressive radial head resection, mimicking a displaced radial head fracture, in a cadaveric model. METHODS: Ten cadaveric specimens were tested. Intra-articular pressure sensors were used to measure pressure within the radiocapitellar and ulnotrochlear joints with the forearm in full supination. The elbow was loaded to 100 N in extension, 45° of flexion, and 90° of flexion under the following conditions: (1) intact radial head, (2) 20% radial head resection, (3) 40% radial head resection, and (4) 100% radial head resection. RESULTS: The distribution of pressure between the radiocapitellar and ulnotrochlear joints did not change with sequential, partial resection of the radial head (radiocapitellar joint, between 48.92% and 53.79%; ulnotrochlear joint, between 46.21% and 51.08%). After 20% resection, radiocapitellar peak contact pressure (PCP) increased by 22% (from 1,410 to 1,721.5 kPa) and ulnotrochlear PCP increased by 36% (from 1,319 to 1,797.5 kPa). After 40% resection, radiocapitellar PCP increased by 123% (from 1,410 to 3,145 kPa; p = 0.0003) and ulnotrochlear PCP increased by 105% (from 1,319 to 2,702 kPa; p = 0.007). Ulnotrochlear PCP increased by a total of 159% after complete radial head resection (from 1,319 to 3,415.5 kPa; p = 0.003). CONCLUSIONS: Pressures in the radiocapitellar and ulnotrochlear joints were equally distributed with an intact radial head and after partial resection. Radiocapitellar and ulnotrochlear pressures increased with increasing radial head resection, significantly exceeding 100% of normal after radial head resection of 40% of the anterolateral diameter. LEVEL OF EVIDENCE: Prognostic Level III . See Instructions for Authors for a complete description of levels of evidence.


Assuntos
Articulação do Cotovelo , Fraturas da Cabeça e do Colo do Rádio , Fraturas do Rádio , Humanos , Fenômenos Biomecânicos , Cadáver , Rádio (Anatomia)/cirurgia , Antebraço , Fraturas do Rádio/cirurgia , Articulação do Cotovelo/cirurgia
8.
Hand Clin ; 40(1): 63-77, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-37979991

RESUMO

Distal radius fractures are common injuries. Satisfactory outcomes are typically achieved with appropriate nonoperative or operative treatment. A proportion of these injuries develop symptomatic malunions, which may be treated surgically with distal radius corrective osteotomy. A thorough understanding of the anatomy, biomechanics, radiographic parameters, and indications is needed to provide appropriate treatment. Factors, including surgical approach, osteotomy type, use of bone graft, fixation construct, management of associated tendon and/or nerve conditions, soft tissue contracture releases, and need for ulnar-sided procedures, should be considered. A comprehensive evaluation is necessary to guide understanding for when salvage procedures may be preferred.


Assuntos
Fraturas Mal-Unidas , Fraturas do Rádio , Humanos , Rádio (Anatomia) , Fraturas do Rádio/cirurgia , Fraturas Mal-Unidas/cirurgia , Ulna , Articulação do Punho , Resultado do Tratamento , Amplitude de Movimento Articular , Estudos Retrospectivos
12.
Artigo em Inglês | MEDLINE | ID: mdl-37639003

RESUMO

Postoperative care is essential to upper extremity replantation success and includes careful and frequent monitoring of the replanted part. During this period, pharmacologic agents such as antithrombotic and anticoagulants may prevent complications such as arterial thrombosis and venous congestion. Dressings and therapy can also impact short- and long-term outcomes following replantation. This article reviews the literature to provide guidance for postoperative protocols following upper extremity replantation.

13.
Artigo em Inglês | MEDLINE | ID: mdl-37581643

RESUMO

PURPOSE: Contraindications to replantation include severe medical or psychiatric comorbidities. Recently, authors have suggested that due to the improving therapeutic options for patients with psychiatric decompensation, this should no longer be listed as a contraindication to replantation. Despite this, authors continue to list severe psychiatric comorbidities as a contraindication to replantation. This case series and review of the literature discusses this complex topic and provides recommendations regarding the management of patients following upper extremity self-inflicted amputations. METHODS: The authors present two cases of self-inflicted upper extremity amputations. The cases depict the acute management and the outcomes of these patients. The authors also reviewed the literature to present the available literature on this topic. RESULTS: The first case is a 64-year-old male who deliberately amputated his left hand with a table saw while suffering postictal psychosis. He underwent replantation. The patient was co-managed by the surgical and psychiatric team postoperatively. The patient expressed gratitude for his replantation after being treated for his psychoneurological condition. The second case is that of a 25-year-old male who deliberately amputated his left forearm using a Samurai sword. The patient's limb was successfully replanted. In the post-anesthesia care unit, the patient experienced extreme agitation, and during this event, he reinjured the left forearm. He was again taken urgently to the operating room to revise the replantation. Once psychiatrically stabilized, the patient was thankful for the care he received. CONCLUSION: The management of upper extremity self-inflicted amputations is controversial and difficult to establish as this presentation is rare. We present two cases which illustrate some of the nuances in the care of these patients. Our review suggests that psychiatric diagnosis be viewed as a comorbidity and not a contraindication to replantation. Thus, an informed consent discussion should be performed with the patients and, as needed, a member of the psychiatric team in order to decide whether to replant or not.

14.
J Hand Surg Am ; 48(10): 993-1002, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37589622

RESUMO

PURPOSE: Clinicians assessing patients with deliberate self-inflicted amputations face a problem of whether or not to replant. The objective of this study was to summarize the literature on this topic and provide recommendations regarding the acute management of patients following self-inflicted amputations in the upper extremity. METHODS: Two reviewers searched four databases using the keywords "Upper extremity," "Amputation," and "Self-Inflicted." The reviewers systematically screened and collected data on publications reporting cases of self-inflicted upper-extremity amputations. The findings then were summarized in a narrative fashion. RESULTS: Twenty-four studies were included. Twenty-nine cases of self-inflicted upper-extremity amputations were reported. There were 25 unilateral and four bilateral extremity amputations. Amputations were most commonly at the hand/wrist (18 patients) and forearm level (6 patients). The amputations were most commonly performed with a saw (9 patients) or a knife (8 patients). Reasons for amputation included psychosis (10 cases), suicide attempt (7 cases), depression (5 cases), and body integrity identity disorder (four cases). Fifteen replantations were performed; all were successful. Reasons for not pursuing replantation were related to injury factors (ie, multilevel injury, prolonged ischemia, damaged part) rather than patient-level factors. Two patients with replantable extremities declined replantation, both of whom had body integrity identity disorder. Of the patients who underwent replantation, none expressed regret. CONCLUSIONS: The literature shows that patients experiencing psychosis or depression committed self-harm during an acute psychiatric decompensation, and once medically and psychiatrically stabilized, expressed satisfaction with their replanted limb. Surgeons should not consider psychiatric decompensation a contraindication to replantation and should be aware of patients with body integrity identity disorder who consciously may elect to undergo revision amputation. When presented with patients experiencing psychiatric decompensation who refuse replantation/are not competent, surgeons should seek emergency assistance from the psychiatry team to determine the best management of a self-inflicted amputation. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapy/Prevention/Etiology/Harm V.


Assuntos
Amputação Traumática , Humanos , Amputação Traumática/cirurgia , Extremidade Superior , Reimplante , Amputação Cirúrgica , Antebraço
15.
J Bone Joint Surg Am ; 105(20): 1601-1610, 2023 10 18.
Artigo em Inglês | MEDLINE | ID: mdl-37616381

RESUMO

BACKGROUND: The modified Kocher and extensor digitorum communis (EDC)-splitting intervals are commonly utilized to approach the lateral elbow. Iatrogenic injury to the lateral ulnar collateral ligament may result in posterolateral rotatory instability (PLRI). in the present cadaveric study, we (1) evaluated lateral elbow stability following the use of these approaches and (2) assessed the accuracy of static lateral elbow radiographs as a diagnostic tool for PLRI. METHODS: Ten matched-pair cadaveric upper-extremity specimens (n = 20) were randomly assigned to Kocher or EDC-splitting approaches. Specimens underwent evaluation pre-dissection, post-dissection, and following repair of the surgical interval. Clinical evaluation of lateral elbow stability was performed with the lateral pivot-shift maneuver. Radiographic radiocapitellar displacement was evaluated with the fully extended hanging arm test and on lateral elbow 30° flexion radiographs. Paired Wilcoxon signed-rank tests with Bonferroni correction were utilized to compare groups. RESULTS: All Kocher group specimens (10 of 10) developed PLRI on the pivot-shift maneuver following dissection. No EDC-splitting group specimens (0 of 10) developed instability with pivot-shift testing. The fully extended hanging arm test showed no difference in radiocapitellar displacement between groups (p > 0.008). Lateral elbow 30° flexion radiographs in the Kocher group showed an increased radiocapitellar displacement difference (mean, 8.46 mm) following dissection compared with the pre-dissection baseline (p < 0.008). Following repair of the Kocher interval, the radiocapitellar displacement (mean, 6.43 mm) remained greater than pre-dissection (mean, 2.26 mm; p < 0.008). In the EDC-splitting group, no differences were detected in radiocapitellar displacement on lateral elbow radiographs with either the fully extended hanging arm or lateral elbow 30° flexion positions. CONCLUSIONS: The Kocher approach produced PLRI that did not return to baseline conditions following repair of the surgical interval. The EDC-splitting approach did not cause elbow instability clinically or radiographically. The hanging arm test was not reliable for the detection of PLRI. CLINICAL RELEVANCE: The Kocher interval for lateral elbow exposure results in iatrogenic PLRI that is not detectable on the hanging arm test and that does not return to baseline stability following repair of the surgical interval.


Assuntos
Ligamentos Colaterais , Articulação do Cotovelo , Instabilidade Articular , Humanos , Articulação do Cotovelo/diagnóstico por imagem , Articulação do Cotovelo/cirurgia , Instabilidade Articular/diagnóstico por imagem , Instabilidade Articular/etiologia , Instabilidade Articular/cirurgia , Cotovelo , Cadáver , Doença Iatrogênica , Ligamentos Colaterais/lesões
16.
Hand (N Y) ; : 15589447231156210, 2023 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-37161279

RESUMO

BACKGROUND: Small proximal pole scaphoid nonunions present a clinical challenge influenced by fragment size, vascular compromise, deforming forces exerted through the scapholunate interosseous ligament (SLIL), and potential articular fragmentation. Osteochondral autograft options for proximal pole reconstruction include the medial femoral trochlea, costochondral rib, or proximal hamate. This study reports the clinical outcomes of patients treated with proximal hamate osteochondral autograft reconstruction. METHODS: A retrospective review identified patients treated with this surgery from 2 institutions with a minimum 6-month follow-up. Clinical outcomes included the Visual Analog Dcale pain score, 12-item Short-Form survey, abbreviated Disabilities of the Arm, Shoulder, and Hand (QuickDASH) score, wrist and forearm range of motion (ROM), radiographic assessment, and complications. We reviewed and compared these outcomes with those of the current published literature. RESULTS: Four patients (mean age: 24 years, 75% men) with a 12.8-month average follow-up (range: 6-20 months) were included. Radiographic union was identified in all cases by 12 weeks (range, 10-12). The average wrist ROM was 67.5% flexion/extension and 100% pronation/supination compared with the contralateral side at the final follow-up. The mean QuickDASH score was 17.6 (SD, 13). No complications were identified. CONCLUSIONS: Proximal pole scaphoid nonunion reconstruction using autologous proximal hamate osteochondral graft demonstrated encouraging clinical and radiographic outcomes. Proximal hamate harvest involves minimal donor site morbidity without a distant operative site, uses an osteochondral graft with similar morphology to the proximal scaphoid, requires no microsurgical technique, and permits reconstruction of the SLIL using the volar capitohamate ligament.

17.
Hand (N Y) ; : 15589447231160208, 2023 Apr 13.
Artigo em Inglês | MEDLINE | ID: mdl-37056194

RESUMO

BACKGROUND: The use of a self-adherent, elastic bandage is a practical way to dress finger injuries. Multiple reports describe iatrogenic injuries from elastic bandages, ranging from skin necrosis to finger gangrene, necessitating amputations. This study investigated whether elastic bandages can compromise digital perfusion by occluding arterial blood flow in healthy volunteers and evaluated the utility of pulse oximetry as a monitoring tool for digital perfusion. A technique for safe bandage application is proposed. METHODS: A commercially available elastic bandage was wrapped around the index finger of 20 healthy volunteers at varying degrees of stretch. Digital perfusion measurements were carried out using photoelectric pulse transduction, laser Doppler flowmetry, and pulse oximetry. Intracompartmental pressure measurements were recorded using a separate in vitro experimental model. RESULTS: Elastic bandages applied at maximum stretch did not change digital brachial index or pulse oximetry values, suggesting arterial blood flow was preserved distal to the bandage. Intracompartmental pressure measurements at maximum stretch remained below the systolic digital pressure. In contrast, superficial dermal perfusion fell to 32% of normal as measured by laser Doppler flow, at 100% bandage stretch. CONCLUSION: This study suggests a risk for iatrogenic injury when using elastic bandages for finger dressings. While arterial inflow was never compromised, pressures were high enough to occlude superficial venous outflow, which may begin at 20% bandage stretch. Pulse oximetry failed to detect changes distal to applied dressings, and we do not recommend it to detect digital vascular compromise in this setting.

18.
Eur J Orthop Surg Traumatol ; 33(7): 2995-2999, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36934360

RESUMO

PURPOSE: Carpal tunnel (CT) syndrome continues to be a commonly treated hand pathology. We aimed to evaluate several CT injection techniques for (1) spatial accuracy within the CT and (2) risk of median nerve (MN) injury. Our purpose was to evaluate for any significant differences in accuracy of needle placement within the carpal tunnel and final distance between the needle tip and the MN with each technique. METHODS: Fifteen fresh frozen cadaveric arms were used for this study. Six different injection techniques for CT injection were performed on each specimen, including palmaris longus, ulnar to flexor carpi radialis, trans-flexor carpi radialis, volar radial, volar ulnar, and direct through the palm techniques. After needle placement, a standard open CT release was performed to assess for accuracy of placement within the CT and measure needle position in relation to the MN and other anatomic structures. RESULTS: Accurate intra-CT needle placement was seen in 91% of injections. While there was no significant difference between injection techniques for distance to nearest tendon (p = 0.1531), the trans-flexor carpi radialis (tFCR), volar radial (VR), and volar ulnar (VU) techniques consistently provided the greatest intra-CT distance from needle tip to median nerve (p = 0.0019). The least incidence of intraneural needle placement was found with the tFCR and VR approaches. CONCLUSION: All six injection techniques reliably enter the CT space. The lowest risk to the MN was found with tFCR and VR techniques, and we recommend these techniques for safe and effective needle placement to avoid iatrogenic intraneural injection. LEVEL OF EVIDENCE: Level V: Cadaveric Study.


Assuntos
Síndrome do Túnel Carpal , Nervo Mediano , Humanos , Nervo Mediano/diagnóstico por imagem , Nervo Mediano/lesões , Nervo Mediano/patologia , Síndrome do Túnel Carpal/cirurgia , Punho , Antebraço , Cadáver
19.
J Orthop Trauma ; 37(5): e200-e205, 2023 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-36729593

RESUMO

OBJECTIVES: To determine whether the initial radiographic displacement of humeral shaft fractures is associated with failure of nonoperative management. DESIGN: Retrospective cohort study. SETTING: Urban level 1 trauma center. PATIENTS/PARTICIPANTS: 106 patients with humeral shaft fractures (OTA/AO 12) initially managed nonoperatively. INTERVENTION: Functional bracing. MAIN OUTCOME MEASUREMENTS: Failure of nonoperative management, defined as conversion to surgery, malunion, and delayed union/nonunion. RESULTS: Nonoperative management failed in 33 (31%) of 106 included patients with 27 patients (25%) requiring surgery. On multivariate analysis, female sex [odds ratio (OR): 3.50, 95% confidence interval (CI): 1.09 to 11.21], American Society of Anesthesiologist classification >1 (OR: 7.16, CI: 1.95 to 26.29), initial fracture medial/lateral (ML) translation (OR: 1.09, CI: 1.01 to 1.17, per unit change), and initial fracture anterior-posterior (AP) angulation (OR: 1.09, CI: 1.02 to 1.15, per unit change) were independently associated with failure of nonoperative management. Initial fracture displacement values that maximized the sensitivity (SN) and specificity (SP) for failure included an AP angulation >11 degrees (SN 75%, SP 64%) and ML translation >12 mm (SN 55%, SP 75%). The failure rate in patients with none, 1, or both of these fracture parameters was 3.1% (1/32), 35.6% (20/56), and 66.6% (12/18), respectively. CONCLUSIONS: Nearly one-third of patients experienced failure of initial nonoperative management. Failure was found to be associated with greater initial fracture AP angulation and ML translation. Fracture displacement cut-off values were established that may be used by surgeons to counsel patients with these injuries. LEVEL OF EVIDENCE: Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.


Assuntos
Fraturas do Úmero , Feminino , Humanos , Fraturas do Úmero/diagnóstico por imagem , Fraturas do Úmero/terapia , Fraturas do Úmero/complicações , Úmero , Estudos Retrospectivos , Resultado do Tratamento
20.
Hand (N Y) ; 18(1): 126-132, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-33855882

RESUMO

BACKGROUND: The goal in the treatment of stages II and III Kienböck disease is to restore lunate vascularity and halt the progression of avascular necrosis. METHODS: We report the outcomes for patients with stages II and III Kienböck disease treated with fourth extensor compartment artery vascularized bone grafting and temporary radiocarpal spanning internal fixation. Nine patients with a mean age of 28.8 years were included. Mean clinical and radiographic follow-up were 4.9 and 1.9 years, respectively. RESULTS: Six patients had no change in Lichtman stage, 2 patients regressed 1 stage, and 1 patient progressed 1 stage. Mean postoperative quick disabilities of the arm, shoulder, and hand (QuickDASH) was 17.4. Mean postoperative visual analogue pain scale (VAS) was 1.8. Patients under age 25 trended toward improved clinical outcomes compared with patients over age 25. Two patients, aged 33 and 65, underwent proximal row carpectomy at a mean 30.5 months postoperatively. CONCLUSIONS: In conclusion, the use of local vascularized bone graft with temporary internal radiocarpal spanning fixation provides a treatment option with outcomes comparable to existing literature with benefits inherent to internal immobilization.


Assuntos
Osso Semilunar , Osteonecrose , Humanos , Adulto , Seguimentos , Estudos Retrospectivos , Osso Semilunar/cirurgia , Osteonecrose/cirurgia , Extremidade Superior
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