No Differences in Clinical Outcomes Between Hip Arthroscopy With Versus Without Capsular Closure in Patients With Cam- or Mixed-Type Femoroacetabular Impingement: A Randomized Controlled Trial.

PURPOSE: To compare 2-year clinical outcomes of primary hip arthroscopy with versus without capsular closure after interportal capsulotomy in patients with cam- or mixed-type femoroacetabular impingement (FAI). METHODS: Patients with cam- or mixed-type FAI undergoing primary hip arthroscopy with interportal capsulotomy were prospectively enrolled in this randomized controlled trial (RCT) and allocated into either capsular closure or no capsular closure groups. Patients were blinded to group allocation. Clinical outcomes were assessed preoperatively and at 2-year follow-up using the 12-item International Hip Outcome Tool (iHOT-12), modified Harris Hip Score (mHHS), and 6 subsections of the Copenhagen Hip and Groin Outcome Score (HAGOS). Complications and reoperations were noted. RESULTS: Eighty-four patients (100 hips) were enrolled, 49 hips in the capsular closure group and 51 in the no capsular closure group, with no significant differences in age (28.5 ± 7.5 vs 30.4 ± 8.4, P = .261), body mass index (23.5 ± 3.0 vs 23.4 ± 1.9, P = .665), and sex distribution (female: 10.2% vs 13.7%, P = .760). Four patients were lost to follow-up (2.0% vs 5.9%, P = .618) and 6 had reoperations (6.1% vs 5.9%, P = 1.000), which left 45 hips per group for clinical assessment. There were no significant differences between groups in the net change of iHOT-12 (28.3 ± 19.6 vs 32.5 ± 22.7, P = .388), mHHS (7.6 ± 13.1 vs 7.5 ± 10.2, P = .954), and subsections of HAGOS (P > .05). Complication rates were also similar between groups (P > .05). CONCLUSIONS: The present RCT compared primary hip arthroscopy with versus without capsular closure after interportal capsulotomy in a male-dominated, non-dysplastic, non-arthritic cohort with cam- or mixed-type FAI and found no significant differences in patient-reported clinical outcomes, complication rates, or reoperation rates. LEVEL OF EVIDENCE: Level I, randomized controlled trial.

Satisfactory mid-term clinical outcomes of endoscopic tenotomy for iliopsoas tendinopathy following total hip arthroplasty.

PURPOSE: To report 5-year outcomes of endoscopic iliopsoas tenotomy in patients with iliopsoas tendinopathy following total hip arthroplasty (THA) and determine whether clinical scores are associated with cup position. METHODS: Patients who underwent endoscopic iliopsoas tenotomy for iliopsoas tendinopathy following THA (2014-2017) were contacted. Indications for endoscopic iliopsoas tenotomy after THA were groin pain during active hip flexion, exclusion of other causes of groin pain, and no pain relief after 6 months of conservative treatment. Pretenotomy cup inclination and anteversion were measured on radiographs; axial and sagittal cup overhang were measured on computed tomography (CT) scans. Oxford hip score (OHS), modified Harris hip score (mHHS), and groin pain were assessed. RESULTS: The initial cohort comprised 16 men (17 hips) and 31 women (32 hips), aged 60.7 ± 10.6 years. Cup inclination and anteversion were, respectively, 46.2 ± 6.2° and 14.6 ± 8.4°, while axial and sagittal cup overhang were, respectively, 4.4 ± 4.0 mm and 6.9 ± 4.5 mm. At ≥5 years follow-up, four hips underwent cup and stem revision, two underwent isolated cup revision and one underwent secondary iliopsoas tenotomy. OHS improved by 23 ± 10 and mHHS improved by 31 ± 16. Posttenotomy groin pain was slight in 20.0%, mild in 17.5% and moderate in 12.5%. Regression analyses revealed that net change in mHHS decreased with sagittal cup overhang (ß = -3.1; 95% confidence interval [CI] = -4.6 to -1.7; p < 0.001), but that there were no associations between cup position and net change in OHS. CONCLUSIONS: Endoscopic iliopsoas tenotomy provides good mid-term clinical outcomes in patients with iliopsoas tendinopathy following THA. Furthermore, improvements in mHHS were found to decrease with increasing sagittal cup overhang, in cases for which adequate preoperative imaging was available. LEVEL OF EVIDENCE: Level IV.

Total hip arthroplasty in the public health system of são paulo: comparing types of fixation / Artroplastia total de quadril no sistema público de são paulo: comparando os tipos de fixação

ABSTRACT Brazil lacks registries on the prevalence of primary total hip arthroplasty (THA) fixation methods. Objective: (i) to describe the demographic profile of patients who underwent THA in the public health system of the municipality of São Paulo during the last 12 years and (ii) to compare fixation methods regarding costs, hospital stay length, and death rates. Methods: This is an ecological study conducted with data available on TabNet, a platform belonging to DATASUS. Public data (from the government health system) on THA procedures performed in São Paulo from 2008 to 2019 were extracted. Gender, age, city region, THA fixation method, number of surgeries, costs, hospital stay length, and death rates were analyzed. Results: We analyzed 7,673 THA, of which 6220 (81%) were performed via cementless/hybrid fixation and 1453 (19%), via the cemented technique. Cementless/hybrid fixation had a higher cost (US$ 495.27) than the cemented one (p < 0.001). Nevertheless, hospital stay length was 0.87 days longer for cemented fixation than the cementless/hybrid one. We found no significant difference in death rates between THA fixation methods. Conclusion: THA cementless/hybrid fixation is prevalent in the municipality of São Paulo, which had higher total costs and shorter hospitalizations than cemented fixation. We found no difference between THA fixation methods and death rates. Level of Evidence IV, Case Series.

RESUMO No Brasil, não há registros da prevalência do tipo de fixação da artroplastia total de quadril (ATQ). Objetivo: (i) Descrever perfil demográfico de pacientes submetidos à ATQ no Sistema Único de Saúde de São Paulo durante os últimos doze anos; e (ii) comparar as técnicas de fixação de ATQ quanto aos custos, tempo de internação (TI) e taxa de óbito. Métodos: Estudo ecológico, com dados disponíveis na TabNet do DATASUS. Dados públicos de procedimentos de ATQ eletivos realizados em São Paulo de 2008 a 2019 foram extraídos. Foram analisados: sexo, idade, região municipal, método de fixação em ATQ, número de cirurgias, custo, tempo de internação e óbitos. Resultados: Foram analisadas 7.673 ATQs, sendo 6.220 (81%) não-cimentada/híbridas e 1.453 (19%) cimentadas. A fixação não-cimentada/híbrida teve custo maior em US$ 495,27 do que a cimentada (p < 0,001). Entretanto, TI foi 0,87 dia mais longo na fixação cimentada. Não houve diferença significativa nas taxas de óbito entre os métodos de fixação. Conclusão: A fixação não-cimentada/híbrida na ATQ é prevalente em São Paulo, e apresentou maior custo total, porém menor tempo de internação do que a fixação cimentada. Não houve diferença entre o método de fixação em ATQ e a taxa de óbito. Nível de Evidência IV, Série de Casos.

Post-Treatment Classification for Acetabular Chondral Lesions in Hip Arthroscopy / Classificação pós-tratamento para lesões condrais acetabulares na artroscopia de quadril

Abstract Objective To describe a postarthroscopic treatment classification system for acetabular chondral damage in the hip and to report the intraobserver and interobserver reliability of such classification. Methods This is a retrospective review of ninety-nine digital video recordings made during arthroscopic surgery. Patients who underwent arthroscopic treatment for femoroacetabular impingement and evaluated at the hip arthroscopy outpatient clinic between March 2015 and March 2016 were included in the study. Patients with a history of previous hip surgery, radiologic evidence of advanced osteoarthritis (Tönnis grade > 2), who underwent labral resection, or whose digital recordings were incomplete or of insufficient quality for adequate review were excluded. Two orthopedic surgeons, who did not participate in the surgery, independently reviewed the video recordings and classified the remaining acetabular cartilage using the post-treatment classification system. Intraobserver and interobserver analysis was then conducted using intraclass correlation coefficient (ICC). Results Excellent intraobserver reliability (ICC = 0.790; p < 0.001) and interobserver reliability (ICC = 0.882; p < 0.001) were observed. Both ICC values were statistically significant. Conclusion The posttreatment classification of the remaining acetabular cartilage has excellent intra and interobserver reliability.

Resumo Objetivo Descrever um sistema de classificação de tratamento pós-artroscópico para as lesões condrais acetabulares no quadril e relatar as confiabilidades intra e interobservador deste sistema. Métodos Esta é uma revisão retrospectiva de 99 gravações de vídeo digital realizadas durante artroscopia. Os pacientes submetidos a tratamento artroscópico para impacto femoroacetabular e avaliados no ambulatório de quadril entre março de 2015 e março de 2016 foram incluídos no estudo. Os pacientes com histórico de cirurgia anterior do quadril, evidência radiológica de osteoartrose avançada (Tönnis > 2), pacientes submetidos à ressecção labral ou cujas gravações digitais estavam incompletas ou de qualidade insuficiente para avaliação adequada foram excluídos. Dois ortopedistas, que não participaram da cirurgia, revisaram de forma independente as gravações de vídeo e classificaram a cartilagem acetabular remanescente usando o sistema de classificação pós-tratamento. A análise intra e interobservador foi então realizada utilizando o coeficiente de correlação intraclasse (CCI). Resultados Excelente confiabilidade intraobservador (CCI = 0,790; p < 0,001) e confiabilidade interobservador (CCI = 0,882; p < 0,001). Ambos os valores de CCI foram estatisticamente significativos. Conclusão a classificação pós-tratamento da cartilagem acetabular remanescente possui excelente confiabilidade intra e interobservador.