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1.
J Shoulder Elbow Surg ; 33(3): e126-e152, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38103720

RESUMO

BACKGROUND: Rotator cuff disorders include a broad spectrum of pathological conditions including partial-thickness and full-thickness tears. Studies have shown partial-thickness rotator cuff tear (PTRCT) prevalence to be twice that of full-thickness tears. In the working population, PTRCTs are one of the most common causes of shoulder pain and often result in occupational disability due to pain, stiffness, and loss of shoulder function. Treatment of PTRCTs remains controversial. The purpose of this study was to consolidate the existing high-quality evidence on best management approaches in treating PTRCTs using both nonoperative and operative approaches. METHODS: A scoping review with best evidence synthesis was performed as per the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews. MEDLINE (OVID), EMBASE (OVID), Cochrane Library (Wiley), SCOPUS, Web of Science Core Collection, CINAHL Plus with Full Text (EBSCOhost), PubMed Central, and Science Direct were searched from 2000 to March 3, 2023. Level 1 studies, and systematic reviews and meta-analyses that included level 1 and 2 studies, were included. RESULTS: The search yielded 8276 articles. A total of 3930 articles were screened after removing 4346 duplicates. Application of inclusion criteria resulted in 662 articles that were selected for full-text review. Twenty-eight level 1 studies, 1 systematic review, 4 meta-analyses, and 1 network meta-analyses were included in the best evidence synthesis. Nonoperative strategies included injections (ie, platelet-rich plasma, corticosteroid, prolotherapy, sodium hyaluronate, anesthetic, and atelocollagen), exercise therapy, and physical agents. Operative interventions consisted of débridement, shaving of the tendon and footprint, transtendon repair, and traditional suture anchor repair techniques with and without tear completion. Both nonoperative and operative strategies demonstrated effectiveness at managing pain and functional outcome for PTRCTs. The evidence supports the effectiveness of surgical intervention in treating PTRCTs regardless of arthroscopic technique. CONCLUSION: The results of this scoping review do not support superiority of operative over nonoperative management and suggest that both strategies can be effective at managing pain and functional outcome for PTRCTs. Surgery, however, is the most invasive and costly approach, with the highest risk of complications such as infection. Other variables such as patient expectation, treating practitioner bias, or preference may change which modalities are offered and in what sequence.


Assuntos
Lesões do Manguito Rotador , Humanos , Lesões do Manguito Rotador/cirurgia , Lesões do Manguito Rotador/terapia , Artroscopia/métodos
2.
J Bone Joint Surg Am ; 103(19): 1763-1771, 2021 10 06.
Artigo em Inglês | MEDLINE | ID: mdl-34166263

RESUMO

BACKGROUND: Improvements in surgical fixation to repair distal biceps tendon ruptures have not fully translated to earlier postoperative mobilization; it is unknown whether earlier mobilization affords earlier functional return to work. This parallel-arm randomized controlled trial compared the impact of early mobilization versus 6 weeks of postoperative immobilization following distal biceps tendon repair. METHODS: One hundred and one male participants with a distal biceps tendon rupture that was amenable to a primary repair with use of a cortical button were randomized to early mobilization (self-weaning from sling and performance of active range of motion as tolerated during first 6 weeks) (n = 49) or 6 weeks of immobilization (splinting for 6 weeks with no active range of motion) (n = 52). Follow-up assessments were performed by a blinded assessor at 2 and 6 weeks and at 3, 6, and 12 months. At 12 months, distal biceps tendon integrity was verified with ultrasound. The primary outcome was return to work. Secondary outcomes were pain, range of motion, strength, shortened Disabilities of the Arm, Shoulder and Hand questionnaire (QuickDASH) score, and tendon integrity. Intention-to-treat analysis was performed. A linear mixed model for repeated measures was used to compare pain, range of motion, strength, and QuickDASH between the groups over time; return to work was assessed with use of independent t tests. RESULTS: The groups were similar preoperatively (p ≥ 0.16). The average age (and standard deviation) was 44.7 ± 8.6 years. Eighty-three participants (82%) were followed to 12 months. There were no differences between the groups in terms of return to work (p ≥ 0.83). Participants in the early mobilization group had significantly more passive forearm supination (p = 0.04), with passive forearm pronation (p = 0.06) and active extension and supination (p = 0.09) trending toward significantly greater range of motion in the early mobilization group relative to the immobilization group. Participants in the early mobilization group had significantly better QuickDASH scores over time than those in the immobilization group (p = 0.02). There were no differences between the groups in terms of pain (p ≥ 0.45), active range of motion (p ≥ 0.09), or strength (p ≥ 0.70). Two participants (2.0%, 1 in each group) had full-thickness tears on ultrasound at 12 months (p = 0.61). Compliance was not significantly different between the groups (p = 0.16). CONCLUSIONS: Early motion after distal biceps tendon repair with cortical button fixation is well tolerated and does not appear to be associated with adverse outcomes. No clinically important group differences were seen. LEVEL OF EVIDENCE: Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.


Assuntos
Traumatismos do Braço/reabilitação , Deambulação Precoce , Retorno ao Trabalho , Traumatismos dos Tendões/reabilitação , Adulto , Traumatismos do Braço/diagnóstico por imagem , Traumatismos do Braço/cirurgia , Deambulação Precoce/efeitos adversos , Humanos , Masculino , Pessoa de Meia-Idade , Músculo Esquelético/diagnóstico por imagem , Músculo Esquelético/lesões , Músculo Esquelético/cirurgia , Procedimentos Ortopédicos/instrumentação , Procedimentos Ortopédicos/métodos , Amplitude de Movimento Articular , Recuperação de Função Fisiológica , Ruptura/cirurgia , Traumatismos dos Tendões/diagnóstico por imagem , Traumatismos dos Tendões/cirurgia , Resultado do Tratamento
3.
J Orthop Sports Phys Ther ; 51(7): 331-344, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33998264

RESUMO

OBJECTIVE: To assess the effect of early active shoulder movement after rotator cuff repair, compared to delayed active shoulder movement, on clinical outcomes, rotator cuff integrity, and return to work. STUDY DESIGN: Intervention systematic review. LITERATURE SEARCH: We searched 14 databases in November 2017 and updated the search in December 2018 and February 2020. STUDY SELECTION CRITERIA: We included comparative studies that assessed the effect of early active shoulder movement versus delayed active shoulder movement following rotator cuff repair. DATA SYNTHESIS: Means and SDs were used to calculate weighted mean differences and 95% confidence intervals for outcomes of interest. The sensitivity analysis included only randomized controlled trials and was performed when heterogeneity among studies was statistically significant. RESULTS: Eight studies with a total of 756 participants (early active shoulder movement, n = 379; delayed active shoulder movement, n = 377) were included. There was high-certainty evidence favoring early active movement for forward flexion (6 weeks), abduction (6 weeks), and external rotation (6 weeks and 3 and 6 months) postsurgery. There was moderate-certainty evidence of worse Western Ontario Rotator Cuff Index score (6 weeks) for the early active movement group, and no difference in rotator cuff integrity between the early and delayed active movement groups. There were no group differences for all other outcomes. CONCLUSION: Patients who commenced active shoulder movement early after rotator cuff repair had greater shoulder range of motion and worse shoulder-specific quality of life after surgery than patients who delayed active shoulder movement. However, the group differences did not appear to be clinically important, and rotator cuff integrity was similar. J Orthop Sports Phys Ther 2021;51(7):331-344. Epub 15 May 2021. doi:10.2519/jospt.2021.9634.


Assuntos
Terapia por Exercício/métodos , Lesões do Manguito Rotador/reabilitação , Lesões do Manguito Rotador/cirurgia , Humanos , Qualidade de Vida , Amplitude de Movimento Articular , Inquéritos e Questionários
4.
Qual Manag Health Care ; 28(4): 209-221, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31567844

RESUMO

BACKGROUND AND OBJECTIVES: Currently, management of patients presenting with chronic rotator cuff tears in Alberta is in need of quality improvements. This article explores the potential impact of a proposed care pathway whereby all patients presenting with chronic rotator cuff tears in Alberta would adopt an early, conservative management plan as the first stage of care; ultrasound investigation would be the preferred tool for diagnosing a rotator cuff tear; and only patients are referred for surgery once conservative measures have been exhausted. METHODS: We evaluate evidence in support of surgery and conservative management, compare care in the current state with the proposed care pathway, and identify potential solutions in moving toward optimal care. RESULTS: A literature search resulted in an absence of indications for either surgical or conservative management. Conservative management has the potential to reduce utilization of public health care resources and may be preferable to surgery. The proposed care pathway has the potential to avoid nearly Can $87 000 in public health care costs in the current system for every 100 patients treated successfully with conservative management. CONCLUSION: The proposed care pathway is a low-cost, first-stage treatment that is cost-effective and has the potential to reduce unnecessary, costly surgical procedures.


Assuntos
Protocolos Clínicos/normas , Melhoria de Qualidade/organização & administração , Lesões do Manguito Rotador/economia , Lesões do Manguito Rotador/terapia , Canadá , Doença Crônica , Terapias Complementares/organização & administração , Tratamento Conservador/economia , Tratamento Conservador/métodos , Análise Custo-Benefício , Recursos em Saúde/economia , Recursos em Saúde/estatística & dados numéricos , Serviços de Saúde/economia , Serviços de Saúde/estatística & dados numéricos , Humanos , Procedimentos Ortopédicos/economia , Procedimentos Ortopédicos/normas , Equipe de Assistência ao Paciente/organização & administração , Atenção Primária à Saúde/organização & administração , Melhoria de Qualidade/economia , Melhoria de Qualidade/normas , Lesões do Manguito Rotador/cirurgia
5.
Arthroscopy ; 35(3): 749-760.e2, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30827428

RESUMO

PURPOSE: To compare the effect of early mobilization (EM) with standard rehabilitation (SR) over the initial 24 months following arthroscopic rotator cuff (RC) repair. METHODS: A total of 206 patients with full-thickness RC tears undergoing arthroscopic repair were randomized following preoperative assessment of shoulder range of motion (ROM), pain, strength, and health-related quality of life (HRQOL) to either EM (n = 103; self-weaned from sling and performed pain-free active ROM during the first 6 weeks) or SR (n = 103; wore a sling for 6 weeks with no active ROM). Shoulder ROM, pain, and HRQOL were reassessed at 6 weeks and 3, 6, 12, and 24 months postoperatively by a blinded assessor. At 6, 12, and 24 months, strength was reassessed. At 12 months, ultrasound verified RC integrity. Independent t tests assessed 6-week group differences and 2-way repeated measures analysis of variance assessed changes over time between groups. RESULTS: The groups were similar preoperatively (P > .12). The mean age of participants was 55.9 (minimum, 26; maximum, 79) years, and 131 (64%) were men. A total of 171 (83%) patients were followed to 24 months. At 6 weeks postoperatively, EM participants had significantly better forward flexion and abduction (P < .03) than the SR participants; no other group differences were noted. Over 24 months, there were no group differences in ROM after 6 weeks (P > .08), and pain (P > .06), strength (P = .35), or HRQOL (P > .20) at any time. Fifty-two (25%) subjects (30% EM; 33% SR) had a full-thickness tear present at 12-month postoperative ultrasound testing (P > .8). CONCLUSIONS: EM did not show significant clinical benefits, but there was no compromise of postoperative ROM, pain, strength, or HRQOL. Repair integrity was similar at 12 months postoperatively between groups. Consideration should be given to allow pain-free active ROM within the first 6 weeks following arthroscopic RC repair. LEVEL OF EVIDENCE: Level I, high-quality randomized controlled trial.


Assuntos
Artroscopia/reabilitação , Deambulação Precoce/métodos , Cuidados Pós-Operatórios/métodos , Restrição Física/métodos , Lesões do Manguito Rotador/cirurgia , Adulto , Idoso , Artroplastia/métodos , Artroscopia/efeitos adversos , Método Duplo-Cego , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Movimento , Dor Pós-Operatória , Complicações Pós-Operatórias/diagnóstico por imagem , Período Pós-Operatório , Qualidade de Vida , Amplitude de Movimento Articular , Manguito Rotador/diagnóstico por imagem , Manguito Rotador/cirurgia , Lesões do Manguito Rotador/reabilitação , Ruptura/diagnóstico por imagem , Ruptura/etiologia , Articulação do Ombro/fisiopatologia , Articulação do Ombro/cirurgia , Resultado do Tratamento , Ultrassonografia
6.
BMC Health Serv Res ; 18(1): 569, 2018 07 20.
Artigo em Inglês | MEDLINE | ID: mdl-30029658

RESUMO

BACKGROUND: Measuring quality in healthcare is vital in evaluating patient outcomes and system performance. The availability of reliable and valid information about the quality of care for patients presenting with rotator cuff disorders (RCD) in Alberta, Canada is scarce. The objective of this study is to measure quality of care for patients with RCD in order to identify areas of improvement. METHODS: This study employs descriptive survey research design. Between March 2015 and November 2016, a convenience sample of patients presenting with chronic, full-thickness rotator cuff tears to two sport medicine centres in Calgary and Edmonton, Alberta completed two questionnaires: the Healthcare Access and Patient Satisfaction Questionnaire (HAPSQ) and the Rotator Cuff Quality-of-Life Index (RC-QOL). Data collected using both questionnaires were used to make judgments about quality of care. Quality of care was evaluated using six dimensions of quality defined by the Alberta Quality Matrix for Health: accessibility, acceptability, efficiency, effectiveness, appropriateness, and safety. Data was also used to compare current patient clinical pathways to ideal clinical pathway algorithms and used to make judgments about the appropriateness and safety of healthcare practices. RESULTS: One hundred seventy-one patients participated in the study. The longest mean waiting times for medical services in Alberta were for magnetic resonance imaging (MRI) received in the public sector (103 days) and consultation by orthopaedic surgeon (172 days). Patient satisfaction with respect to quality of care was lowest for emergency room physician and highest for orthopaedic surgeon visits. Patients were treated by a mean of 2.5 physicians (SD: 0.77, range: 2-7). The total aggregate average cost per patient was $4541.19. The mean RC-QOL score for all patients was 42 (SD: 22). Only 54 patients (64%) requiring surgery were able to consult with a surgeon within benchmark timeframes. A comparison of current to ideal clinical pathway algorithms found that 38 patients (22%) experienced indirect clinical pathways, whereby care was fragmented and patients received care from multiple and often, redundant healthcare professionals. CONCLUSION: There is a discrepancy between current and ideal clinical pathways whereby some patients are experiencing quality of care that is inefficient, disjointed, and less than ideal.


Assuntos
Procedimentos Clínicos , Satisfação do Paciente , Qualidade da Assistência à Saúde , Lesões do Manguito Rotador/terapia , Adulto , Idoso , Alberta , Benchmarking , Feminino , Pesquisas sobre Atenção à Saúde , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados da Assistência ao Paciente , Inquéritos e Questionários , Tempo para o Tratamento/estatística & dados numéricos
7.
BMC Med Res Methodol ; 16: 56, 2016 05 20.
Artigo em Inglês | MEDLINE | ID: mdl-27206853

RESUMO

BACKGROUND: Patients presenting to the healthcare system with rotator cuff pathology do not always receive high quality care. High quality care occurs when a patient receives care that is accessible, appropriate, acceptable, effective, efficient, and safe. The aim of this study was twofold: 1) to develop a clinical pathway algorithm that sets forth a stepwise process for making decisions about the diagnosis and treatment of rotator cuff pathology presenting to primary, secondary, and tertiary healthcare settings; and 2) to establish clinical practice guidelines for the diagnosis and treatment of rotator cuff pathology to inform decision-making processes within the algorithm. METHODS: A three-step modified Delphi method was used to establish consensus. Fourteen experts representing athletic therapy, physiotherapy, sport medicine, and orthopaedic surgery were invited to participate as the expert panel. In round 1, 123 best practice statements were distributed to the panel. Panel members were asked to mark "agree" or "disagree" beside each statement, and provide comments. The same voting method was again used for round 2. Round 3 consisted of a final face-to-face meeting. RESULTS: In round 1, statements were grouped and reduced to 44 statements that met consensus. In round 2, five statements reached consensus. In round 3, ten statements reached consensus. Consensus was reached for 59 statements representing five domains: screening, diagnosis, physical examination, investigations, and treatment. The final face-to-face meeting was also used to develop clinical pathway algorithms (i.e., clinical care pathways) for three types of rotator cuff pathology: acute, chronic, and acute-on-chronic. CONCLUSION: This consensus guideline will help to standardize care, provide guidance on the diagnosis and treatment of rotator cuff pathology, and assist in clinical decision-making for all healthcare professionals.


Assuntos
Lesões do Manguito Rotador/diagnóstico , Autoavaliação Diagnóstica , Humanos , Manguito Rotador/patologia , Lesões do Manguito Rotador/terapia
8.
Knee Surg Sports Traumatol Arthrosc ; 23(2): 517-22, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23370986

RESUMO

PURPOSE: This prospective study evaluated suprascapular nerve injury risk during arthroscopic superior labral repair in patients of average height or shorter. METHODS: From 2009 to 2011, 12 patients <179 cm tall undergoing arthroscopic superior labral repair were prospectively enrolled. Portal location, tear and anchor characteristics, and surgeon impression of medial glenoid wall perforation were collected. Suprascapular nerve conduction studies were obtained postoperatively. A musculoskeletal radiologist evaluated medial glenoid wall perforation and the distance from the anchor to the suprascapular neurovascular bundle on postoperative magnetic resonance images (MRI). DASH scores were recorded preoperatively and 6 months postoperatively. RESULTS: Medial wall perforation occurred in five (42 %) patients, with 3 patients having a single perforation and two patients having two perforations. Eight of 38 (21 %) anchors drilled into the superior half of the glenoid, and 6 of 20 (30 %) anchors inserted into the postero-superior quadrant of the glenoid, perforated the medial wall. Perforations occurred both through the portal of Wilmington and the antero-superior portal. The distance to the suprascapular neurovascular bundle from the perforating anchors ranged from 0 to 4 mm. Nerve conduction studies revealed subclinical signs of an incomplete nerve injury in one patient. DASH scores improved on average 29.3 points postoperatively (SD = 27.0, p = 0.007). CONCLUSION: Medial wall perforation is common in smaller patients during arthroscopic superior labral repairs; the suprascapular nerve can be injured if perforation occurs. The clinical significance of these findings is unclear. In spite of a high drill-out rate, the nerve is rarely injured; however, an anchor designed for implantation into bone that is instead lodged in the soft tissues has the potential to harm these tissues and surrounding structures. LEVEL OF EVIDENCE: Prospective cohort study, treatment study, Level III.


Assuntos
Artroscopia/efeitos adversos , Fibrocartilagem/lesões , Traumatismos dos Nervos Periféricos/etiologia , Escápula/inervação , Articulação do Ombro/cirurgia , Adulto , Feminino , Fibrocartilagem/cirurgia , Humanos , Masculino , Estudos Prospectivos , Fatores de Risco , Lesões do Ombro , Adulto Jovem
9.
J Shoulder Elbow Surg ; 22(5): 636-41, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23523074

RESUMO

HYPOTHESIS: Many investigators agree that 2 mm of articular displacement is a reasonable indication for open reduction and internal fixation of Mason type II fractures of the radial head. However, there is no evidence to support that this degree of articular displacement is predictive of poor outcomes in conservatively treated fractures. We hypothesized there would be no difference between conservatively treated radial head fractures with greater 2 mm of displacement and those with less than 2 mm of displacement in terms of patient-reported or clinical outcomes. MATERIALS AND METHODS: We reviewed databases of all radial head fractures in our region. The primary outcomes were the Patient-Rated Elbow Evaluation and Disabilities of the Arm, Shoulder and Hand questionnaires. Secondary outcomes included radiologic radiocapitellar arthritis and range of motion (ROM) at follow-up. Postinjury treatment protocols, as well as patient factors, were examined for their effects on outcome. RESULTS: The results showed no significant difference in any outcome for conservatively treated radial head fractures with 2 mm (P = .8) or even 3 mm (P = .6) of articular displacement over a mean follow-up of 4.4 years. Early ROM and physiotherapy showed no significant differences in any outcome measure. Dominant hand injury showed no significant difference in patient-reported outcomes; however, ROM was significantly decreased on examination. CONCLUSIONS: This retrospective review suggests that fracture displacement of 2 to 3 mm is not necessarily an indication for surgical fixation in isolated fractures of the radial head. In addition, it appears that postinjury ROM/physiotherapy does not play a large role in improving patient outcome.


Assuntos
Lesões no Cotovelo , Fraturas do Rádio/terapia , Adulto , Estudos de Coortes , Avaliação da Deficiência , Articulação do Cotovelo/diagnóstico por imagem , Articulação do Cotovelo/cirurgia , Humanos , Pessoa de Meia-Idade , Modalidades de Fisioterapia , Radiografia , Fraturas do Rádio/diagnóstico por imagem , Fraturas do Rádio/cirurgia , Recuperação de Função Fisiológica , Estudos Retrospectivos , Resultado do Tratamento
10.
Ann Intern Med ; 153(4): 246-55, 2010 Aug 17.
Artigo em Inglês | MEDLINE | ID: mdl-20621893

RESUMO

BACKGROUND: Many approaches exist for managing rotator cuff tears. PURPOSE: To compare the benefits and harms of nonoperative and operative interventions on clinically important outcomes in adults with rotator cuff tears. DATA SOURCES: 12 electronic databases (1990 to September 2009), gray literature, trial registries, and reference lists were searched. STUDY SELECTION: Controlled and uncontrolled studies that assessed nonoperative or operative treatments or postoperative rehabilitation for adults with confirmed rotator cuff tears were included. Operative studies in English-language publications and nonoperative and postoperative rehabilitation studies in English, French, or German were considered. Studies were assessed in duplicate. DATA EXTRACTION: 2 reviewers assessed risk for bias by using the Cochrane Risk of Bias tool and the Newcastle-Ottawa Scale. One reviewer rated the evidence by using a modified GRADE (Grading of Recommendations Assessment, Development, and Evaluation) approach. Data were extracted by one reviewer and verified by another. DATA SYNTHESIS: 137 studies met eligibility criteria. All trials had high risk for bias. Cohort and uncontrolled studies were of moderate quality. Reported functional outcomes did not differ between open versus mini-open repair, mini-open versus arthroscopic repair, arthroscopic repair with versus without acromioplasty, or single-row versus double-row fixation. Earlier return to work was reported for mini-open repair versus open repair and for continuous passive motion with physical therapy versus physical therapy alone. Open repairs showed greater improvement in function than did arthroscopic debridement. Complication rates were low across all interventions. LIMITATIONS: Limited evidence, which was often of low quality, precluded conclusions for most comparisons. Language restrictions may have excluded some relevant studies, and selective outcome reporting may have introduced bias. CONCLUSION: Evidence on the comparative effectiveness and harms of various operative and nonoperative treatments for rotator cuff tears is limited and inconclusive. PRIMARY FUNDING SOURCE: Agency for Healthcare Research and Quality.


Assuntos
Lesões do Manguito Rotador , Anti-Inflamatórios/uso terapêutico , Dexametasona/uso terapêutico , Humanos , Ácido Hialurônico/uso terapêutico , Procedimentos Ortopédicos/métodos , Modalidades de Fisioterapia , Complicações Pós-Operatórias , Amplitude de Movimento Articular , Projetos de Pesquisa/normas , Manguito Rotador/fisiologia , Manguito Rotador/cirurgia , Esteroides/uso terapêutico , Fatores de Tempo , Resultado do Tratamento , Viscossuplementos/uso terapêutico , Ferimentos e Lesões/cirurgia , Ferimentos e Lesões/terapia
11.
Can J Surg ; 52(4): 277-282, 2009 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-19680511

RESUMO

BACKGROUND: Radial head fractures are common injuries, and there is little information on the reliability of classification systems for such injuries. The purpose of our study was to report the interobserver reliability of 2 commonly used classification systems: the Hotchkiss modification of the Mason classification and the AO classification systems. METHODS: We compiled the radiographs from a cohort series of 43 patients with radial head fractures, and 5 observers classified the radiographs according to both classification systems. Additionally, we collapsed the systems, with types II and III combined for the Hotchkiss classification and the final digit dropped for the AO classification. We calculated percent agreement, the kappa statistic and the associated 95% confidence intervals (CIs). RESULTS: The mean percent agreement was 72.3% (95% CI 65.8%-78.9%) for the Hotchkiss classification and 37.7% (95% CI 30.5%-44.9%) for the AO classification. The kappa statistic was 0.585 (0.541-0.661) for the Hotchkiss classification and 0.261 (0.240-0.350) for the AO classification. The mean percent agreement was 89.3% (86.6%-92.0%) for the consolidated Hotchkiss classification and 67.4% (54.6%-80.3%) for the consolidated AO classification. The kappa statistic was 0.760 (0.691-0.805) for the consolidated Hotchkiss classification and 0.455 (0.372-0.521) for the consolidated AO classification. CONCLUSION: The interobserver reliability for the Hotchkiss modification of the Mason classification was moderate, and that for the AO classification was fair according to the criteria of Landis and Koch. Collapsing the Hotchkiss classification improved the reliability to substantial, and collapsing the AO system improved reliability to the lower end of moderate.

13.
Arthroscopy ; 21(7): 820-5, 2005 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-16012495

RESUMO

PURPOSE: The purpose of the study was to better define the tibial insertion of the posterior cruciate ligament (PCL) and to identify landmarks that could be used to aid in placement of independent tibial tunnels for a 2-bundle PCL reconstruction. TYPE OF STUDY: Descriptive anatomic study. METHODS: Ten knees from 8 cadavers were dissected and the PCL was identified. The ligament was peeled away from its insertion and the sides of the insertion site were measured and recorded. The 4 corners of the insertion site were identified and marked. Observations were made of the morphology of the insertion site and the presence of any reproducible anatomic landmarks. A note was made of landmarks that could be easily identified on all of the specimens by direct vision and by palpation with a probe. RESULTS: The ligament consisted of 2 regions, 1 anterolateral, and 1 posteromedial, with a gradual change in the laxity of the ligament as the knee was passed through flexion and extension. The insertion site was situated in a depression between the plateaus of the tibia and extended below the articular surface. The average length +/- standard deviation of the 4 sides was 128 +/- 21.2 mm (medial side), 107 +/- 26.5 mm (superior side), 160 +/- 30.0 mm (lateral side), and 169 +/- 34.5 mm (inferior side). The shape and sides of the insertion site were visually similar among the 10 specimens. The superolateral and superomedial corners were both represented by depressions and a reproducible ridge represented the inferior border. These structures could be visualized as well as palpated on all specimens. CONCLUSIONS: Based on the findings of this study, we describe the anatomic characteristics of the tibial footprint of the PCL. Anatomic reference points that represent the corners of the tibial insertion of the PCL were identified by direct vision or palpation consistently on all specimens included in the study. These reference points could potentially aid in the placement of an anterolateral and posteromedial tibial tunnel for a 2 tibial tunnel PCL reconstruction. CLINICAL RELEVANCE: Reproducible anatomic reference points exist at the tibial insertion of the PCL that can be identified by direct vision and palpation. These reference points may potentially aid in the placement of separate tibial tunnels for a 2-bundle PCL reconstruction.


Assuntos
Ligamento Cruzado Posterior/anatomia & histologia , Tíbia/anatomia & histologia , Cadáver , Fêmur/anatomia & histologia , Lateralidade Funcional , Humanos , Tamanho do Órgão , Procedimentos de Cirurgia Plástica
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