Radiographic findings in the coxofemoral joint of Australian Cattle Dogs / Achados radiográficos em articulação coxofemoral de cães da raça Australian Cattle Dog

Australian Cattle Dogs (ACD) are medium-sized animals widely used in fieldwork for managing cattle and sheep. There needs to be more information about the conditions these dogs can develop despite being well-characterized animals since the beginning of the 20th century. Hip dysplasia (HD) is a developmental abnormality between the femoral head and the acetabular fossa, which can be debilitating. However, the available literature has no studies on the prevalence of this condition in dogs of this breed. This study aimed to evaluate radiographs of ACD qualitatively and quantitatively. For this purpose, 49 dogs considered healthy without clinical signs of HD were radiographically assessed, and the animals were classified as dysplastic (D) and non-dysplastic (ND). A frequency of 46.9% of dysplastic dogs was observed, with males being more affected. The cortical index (CI) and angle of inclination (AI) could not differentiate D from ND animals; only the Norberg angle (NA) was effective in this differentiation. No correlation was observed between AI, CI, and AN.(AU)

Os cães da raça Autralian Cattle Dog (ACD) são animais de porte médio, muito utilizados no trabalho de campo para manejo de gado e ovelha. Apesar de serem animais bem caracterizados desde o início do século XX, há poucas informações sobre afecções que esses cães podem desenvolver. A displasia coxofemoral (DCF) é uma anormalidade do desenvolvimento entre a cabeça do fêmur e a fossa acetabular podendo ser debilitante. Contudo, não há estudos, na literatura disponível, sobre a prevalência desta afecção em cães dessa raça. O objetivo deste trabalho foi avaliar qualitativamente e quantitativamente radiografias de cães da raça ACD. Para tanto, foram avaliados radiograficamente 49 cães considerados hígidos e sem sinais clínicos de DCF. Os animais foram classificados em displásicos (D) e não displásicos (ND). Observou-se a frequência de 46,9% de cães displásicos, sendo os machos mais acometidos. O índice cortical (IC) e o ângulo de inclinação (AI) não foram capazes de diferenciar os animais D dos ND, apenas o ângulo de Norberg (AN) foi eficaz nessa diferenciação. Não houve correlação entre AI, IC e AN.(AU)

Mejoría de la supervivencia a los 10 años con la prótesis de recubrimiento de cadera tipo Durom en pacientes seleccionados. Experiencia de un hospital público universitario / Improvement of survival after 10 years with the Durom-type hip resurfacing prosthesis in selected patients: Experience of a public university hospital

Introducción: Las prótesis de recubrimiento son una alternativa válida para el tratamiento de los trastornos degenerativos de cadera del adulto joven, pero han sido reportados malos resultados y efectos adversos en partes blandas con niveles altos de cromo y cobalto, limitándose sus indicaciones. Nuestro objetivo es analizar resultados clínicos, funcionales y de supervivencia del modelo Durom a los 10 años de su implantación en un hospital público. La hipótesis es que se obtienen mejores resultados y supervivencia en pacientes seleccionados según criterios de la FDA. Material y métodos: Estudio retrospectivo de cohortes con 83 pacientes, 91 caderas en 76 hombres y 7 mujeres operados entre 2005 y 2013 con prótesis tipo Durom. Estudio demográfico, diagnóstico, IMC, radiológico con posición de implantes, estrechamiento del cuello y tipo de unión ósea, niveles de cromo y cobalto en suero, valoración funcional según MPD y HSS, complicaciones y supervivencia a los 10 años de seguimiento. Se selecciona una cohorte de varones activos menores de 65 años y cabezas superiores a 48mm para la misma valoración. Resultados: El tiempo de seguimiento fue de 121 meses, con un rango de 84 a 176 meses. Con una edad media de 52,78 años, con 4 defunciones y pérdida de seguimiento de 3 casos. Se producen 12 complicaciones que precisan reintervención (14,45%) con 2 infecciones crónicas, 4 fracturas del cuello femoral, 4 aflojamientos acetabulares y 2 casos de pseudotumores. La supervivencia global fue del 85,4% (71-91,9), y del 87,85% (85,5-91,1) en ausencia de infección a los 10 años. No hubo relación estadística entre las complicaciones y el estrechamiento de cuello y los ángulos de inclinación de los componentes. En pacientes seleccionados, en 69 hombres y 73 caderas obtenemos una supervivencia global del 91,82% y, excluyendo la infección, del 93,18% a los 10 años.(AU)

Introduction: Hip resurfacing arthroplastys are a valid alternative for the treatment of degenerative hip disorders in young adults. Poor results and adverse soft tissue effects have been reported with high levels of chromium and cobalt, limiting its indications. Objective is to analyze clinical and functional survival results of the Durom system 10 years after its implementation in a public hospital. The hypothesis is that better results and survival are obtained in patients selected according to FDA criteria. Material and methods: Retrospective cohort study of 83 patients, 91 hips in 76 men and 7 women operated between 2005 and 2013 with Durom-type prostheses. Demographic study, diagnosis, BMI, radiological study, serum chromium cobalt levels, functional assessment according to MPD and HSS, complications and survival at 10 years of follow-up. A cohort of active men under 65 years of age and heads over 48mm is selected. Results: Follow-up time of 121 months with a range from 84 to 176 months. With a mean age of 52.78 years, with 4 deaths and loss of follow-up of 3 cases. There are 12 complications that require reoperation (14.45%) with 2 chronic infections, 4 femoral neck fractures, 4 acetabular loosening and 2 cases of pseudotumors. With an overall survival of 85.4% (71-91.9) and 87.85% (85.5-91.1) in the absence of infection. No statistical relationship between complications and neck narrowing and the angles of inclination of the components. In selected patients, 69 men and 73 hips, we obtained an overall survival of 91.82% and excluding infection of 93.18% at 10 years. Conclusions: The indication of the Durom system in the treatment of degenerative processes in selected active young patients presents better results and survival at 10 years, although somewhat lower than other highly indicated veneering models.(AU)

Improvement of survival after 10 years with the Durom-type hip resurfacing prosthesis in selected patients: Experience of a public university hospital / Mejoría de la supervivencia a los 10 años con la prótesis de recubrimiento de cadera tipo Durom en pacientes seleccionados. Experiencia de un hospital público universitario

Introduction: Hip resurfacing arthroplastys are a valid alternative for the treatment of degenerative hip disorders in young adults. Poor results and adverse soft tissue effects have been reported with high levels of chromium and cobalt, limiting its indications. Objective is to analyze clinical and functional survival results of the Durom system 10 years after its implementation in a public hospital. The hypothesis is that better results and survival are obtained in patients selected according to FDA criteria. Material and methods: Retrospective cohort study of 83 patients, 91 hips in 76 men and 7 women operated between 2005 and 2013 with Durom-type prostheses. Demographic study, diagnosis, BMI, radiological study, serum chromium cobalt levels, functional assessment according to MPD and HSS, complications and survival at 10 years of follow-up. A cohort of active men under 65 years of age and heads over 48mm is selected. Results: Follow-up time of 121 months with a range from 84 to 176 months. With a mean age of 52.78 years, with 4 deaths and loss of follow-up of 3 cases. There are 12 complications that require reoperation (14.45%) with 2 chronic infections, 4 femoral neck fractures, 4 acetabular loosening and 2 cases of pseudotumors. With an overall survival of 85.4% (71-91.9) and 87.85% (85.5-91.1) in the absence of infection. No statistical relationship between complications and neck narrowing and the angles of inclination of the components. In selected patients, 69 men and 73 hips, we obtained an overall survival of 91.82% and excluding infection of 93.18% at 10 years. Conclusions: The indication of the Durom system in the treatment of degenerative processes in selected active young patients presents better results and survival at 10 years, although somewhat lower than other highly indicated veneering models.(AU)

Introducción: Las prótesis de recubrimiento son una alternativa válida para el tratamiento de los trastornos degenerativos de cadera del adulto joven, pero han sido reportados malos resultados y efectos adversos en partes blandas con niveles altos de cromo y cobalto, limitándose sus indicaciones. Nuestro objetivo es analizar resultados clínicos, funcionales y de supervivencia del modelo Durom a los 10 años de su implantación en un hospital público. La hipótesis es que se obtienen mejores resultados y supervivencia en pacientes seleccionados según criterios de la FDA. Material y métodos: Estudio retrospectivo de cohortes con 83 pacientes, 91 caderas en 76 hombres y 7 mujeres operados entre 2005 y 2013 con prótesis tipo Durom. Estudio demográfico, diagnóstico, IMC, radiológico con posición de implantes, estrechamiento del cuello y tipo de unión ósea, niveles de cromo y cobalto en suero, valoración funcional según MPD y HSS, complicaciones y supervivencia a los 10 años de seguimiento. Se selecciona una cohorte de varones activos menores de 65 años y cabezas superiores a 48mm para la misma valoración. Resultados: El tiempo de seguimiento fue de 121 meses, con un rango de 84 a 176 meses. Con una edad media de 52,78 años, con 4 defunciones y pérdida de seguimiento de 3 casos. Se producen 12 complicaciones que precisan reintervención (14,45%) con 2 infecciones crónicas, 4 fracturas del cuello femoral, 4 aflojamientos acetabulares y 2 casos de pseudotumores. La supervivencia global fue del 85,4% (71-91,9), y del 87,85% (85,5-91,1) en ausencia de infección a los 10 años. No hubo relación estadística entre las complicaciones y el estrechamiento de cuello y los ángulos de inclinación de los componentes. En pacientes seleccionados, en 69 hombres y 73 caderas obtenemos una supervivencia global del 91,82% y, excluyendo la infección, del 93,18% a los 10 años.(AU)

Female Athlete Hip Injuries: A Narrative Review.

OBJECTIVE: In this narrative review, we highlight sex-specific anatomic and biomechanical features of the hip region in female athletes, as well as the potential impact of these characteristics on observed disparities in both intra-articular and extra-articular injury patterns between female and male athletes. It is our goal to broaden the scope of knowledge related to hip pathology in active female athletes among sports medicine providers with the hope of better optimizing sport participation and performance in female athletes. DATA SOURCES: A literature review was conducted using PubMed database and Google Scholar search engine. Search terms included sport, female, athlete, sex differences, injury, hip, and all diagnoses discussed in this review. Cross-reference of these articles identified additional resources. MAIN RESULTS: Sex-specific differences in both static design and dynamic function contribute to disparities in hip injury patterns between female and male athletes. Intra-articular injuries, including labral and ligamentum teres pathology, as well as extra-articular injuries, including iliopsoas tendon dysfunction, gluteal and proximal hamstring tendinopathy, ischiofemoral impingement, bone stress injuries, and certain nerve entrapment syndromes, seem to affect female athletes more commonly than male counterparts. CONCLUSIONS: Given unique anatomic and functional considerations, the growing population of female athletes worldwide warrants specialized care and consideration. Potential predisposition to specific hip injuries should be taken into consideration during diagnostic evaluation of hip pain in the female athlete.

The Application of Arthroscopic Techniques in the Diagnosis and Treatment of Hip-Related Conditions in China.

The hip joint is the largest weight-bearing joint in the body and is surrounded by dense capsules and thick muscles. Hip arthroscopic techniques are suitable for the treatment of hip-related conditions. These minimally invasive techniques have rapidly developed in China since 2007. Moreover, they have been used in the treatment of gluteal muscle contracture, snapping hip syndrome, femoral acetabular impingement, acetabular labral injury, hip labral calcification, synovial chondroma, osteoid osteoma, synovitis, osteonecrosis of the femoral head, and developmental dysplasia of the hip. This technique has showed its advantage in the total debridement of lesions, precision treatment, and less trauma. However, we lack understanding of the overall development of arthroscopic techniques in China. This review illustrates the recent development of hip arthroscopic techniques in China and related research progress.

Hockey: a pain in the butt! Isolated superior gluteal artery rupture following blunt pelvic trauma - an unusual case.

Superior gluteal artery rupture is a rare complication of trauma but a significant one with potential for substantial morbidity and mortality. This case demonstrates the importance of early diagnosis and treatment of this injury pattern. Endovascular embolisation has become the most effective treatment for pelvic haemorrhage. Acknowledgement of this rare injury as a differential diagnosis is vital to facilitate rapid diagnosis and appropriate treatment.

Hip Flexor Injuries in the Athlete.

Athletic injuries to the hip flexors and iliopsoas have been described in populations across all levels of competitive sports. Overall estimates of hip flexor pathology have ranged from 5% to 28% of injuries among high-risk sport specific groups. Although most of these injuries are successfully treated with conservative management, and high rates of return to play are observed, significant rehabilitation time can be involved. As the understanding of hip pathology with imaging modalities such as MRI has advanced, greater importance has been placed on accurately diagnosing hip flexor injuries and initiating rehabilitation protocols early to minimize time loss from sport.

Hip Injuries in the Adolescent Athlete.

This article provides concise and up-to-date information on the most common hip pathologies that affect adolescent athletes. We cover the evaluation and treatment of avulsion injuries, stress fractures, slipped capital femoral epiphysis (SCFE), femoroacetabular impingement, developmental dysplasia of the hip, Legg-Calve-Perthes disease, and coxa saltans focusing on minimizing advanced imaging and using conservative therapy when applicable. Although this is not an all-encompassing list of disorders, it is key to understand these hip pathologies because these injuries occur commonly and can also have detrimental complications if not diagnosed and addressed early, especially SCFE and femoral neck stress fractures.

Hip Pain in Adults: Evaluation and Differential Diagnosis.

Adults commonly present to their family physicians with hip pain, and diagnosing the cause is important for prescribing effective therapy. Hip pain is usually located anteriorly, laterally, or posteriorly. Anterior hip pain includes referred pain from intra-abdominal or intrapelvic causes; extra-articular etiologies, such as hip flexor injuries; and intra-articular etiologies. Intra-articular pain is often caused by a labral tear or femoroacetabular impingement in younger adults or osteoarthritis in older adults. Lateral hip pain is most commonly caused by greater trochanteric pain syndrome, which includes gluteus medius tendinopathy or tear, bursitis, and iliotibial band friction. Posterior hip pain includes referred pain such as lumbar spinal pathology, deep gluteal syndrome with sciatic nerve entrapment, ischiofemoral impingement, and hamstring tendinopathy. In addition to the history and physical examination, radiography, ultrasonography, or magnetic resonance imaging may be needed for a definitive diagnosis. Radiography of the hip and pelvis should be the initial imaging test. Ultrasound-guided anesthetic injections can aid in the diagnosis of an intra-articular cause of pain. Because femoroacetabular impingement, labral tears, and gluteus medius tendon tears typically have good surgical outcomes, advanced imaging and/or early referral may improve patient outcomes.

Development of a Predictive Algorithm for Symptomatic Hip Abductor Tears in Patients Undergoing Primary Hip Arthroscopy.

BACKGROUND: Patients presenting with lateral hip pain may pose a difficult diagnostic challenge, as pain can be due to various causes. PURPOSE/HYPOTHESIS: The purpose was to identify risk factors and predictors for symptomatic hip abductor tears in a cohort of patients undergoing primary hip arthroscopy for femoroacetabular impingement syndrome. We hypothesized that body mass index (BMI), female sex, age, and presence of chondral damage would be significant predictors of hip abductor pathologies. STUDY DESIGN: Cohort study (diagnosis); Level of evidence, 3. METHODS: Data were prospectively collected and retrospectively reviewed. Patients were included if they underwent primary hip arthroscopy between March 2009 and December 2019. Patients with Tönnis grade >1, previous hip conditions, incomplete radiographic data, or open procedures were excluded. All demographic variables, intraoperative measurements, and radiographic measurements were assessed using a bivariate analysis. A stepwise logistic regression was used to determine predictive variables. RESULTS: In total, 255 hips with a hip abductor tear that underwent hip arthroscopy and 2106 hips without a tear that underwent hip arthroscopy were included. The stepwise logistic regression successfully created a predictive model using age, sex, BMI, lateral joint space, and alpha angle as variables. The efficiency of the predictive model was 90.7%, with an area under the curve of 0.894. The odds of having a hip abductor tear were 7.41 times higher in females (odds ratio [OR], 7.41; 95% CI, 4.61-11.9). Each additional year of age was associated with a 13.7% (OR, 1.137; 95% CI, 1.12-1.16) increase in the odds of having a tear. Similarly, with each 1-unit increase in BMI, the odds of having a tear increased by 3.4% (OR, 1.034; 95% CI, 1.01-1.06). CONCLUSION: This study successfully created a predictive model that identified female sex (OR, 7.41), increasing age (OR, 1.137 for each year), and increased BMI (OR, 1.034 for each unit of BMI) as significant independent predictors of the presence of hip abductor tears in patients undergoing hip arthroscopy for femoroacetabular impingement syndrome. This model can be used in support of physical examination and imaging suggestive of hip abductor pathology to preoperatively identify the probability of a symptomatic hip abductor tear in these patients.

Determining Reliability of Arthroscopic Classifications for Hip Labral Tears.

OBJECTIVE: Evaluate interobserver and intraobserver reliability of hip arthroscopic classifications for labral tears. DESIGN: Retrospective diagnostic study of nonconsecutive patients. SETTING: Institutional study. PATIENTS: From a database of 278 hip arthroscopy videos for treatment of femoroacetabular impingement, 70 videos were chosen by simple random sampling. Exclusion criteria included presence of radiological arthrosis (Tonnis > 2), previous hip surgery, inadequate lesion palpation, poor image quality, and refusal to participate in the study. The final sample included 60 videos. INTERVENTIONS: Four hip surgeons evaluated the videos twice at 1-month intervals and classified the lesions according to Lage, Seldes, and Beck classifications for hip labral tears. MAIN OUTCOME MEASURES: Interobserver and intraobserver reliability with the percent of agreement and weighted Cohen kappa values. RESULTS: Patients had a mean age of 33 years (SD, 7; range, 18-47 years), and 32 (53%) were men. Femoroacetabular impingement types included combined (CAM and pincer) in 31 (52%), CAM in 27 (45%), and pincer in 2 (3%). For interobserver reliability, the average weighted kappa values were 0.68, 0.65, and 0.78 for the Lage, Seldes, and Beck classifications, respectively. For intraobserver reliability, the mean weighted kappa values were 0.87, 0.64, and 0.93 for the Lage, Seldes, and Beck classifications, respectively. CONCLUSIONS: Beck classification had the highest average values for interobserver and intraobserver agreements. Lage, Seldes, and Beck scores for acetabular labrum tears showed substantial interobserver agreement. In the intraobserver evaluation, the Seldes system presented substantial agreement, whereas Lage and Beck classifications were considered excellent agreement.

Hip and Knee Injuries.

Hip and knee injuries are a common presenting concern for patients to a primary care office. This pathology represents a large differential and it can often be a diagnostic challenge for providers to determine the etiology of a patient's symptoms. This article discusses several of the most common causes for hip and knee pain while providing an evidence based review of physical examination maneuvers, imaging studies and treatment modalities to assist a primary care provider when encountering active patients with underlying hip or knee pain.

Preseason Hip/Groin Strength and HAGOS Scores Are Associated With Subsequent Injury in Professional Male Soccer Players.

DESIGN: Prospective cohort. OBJECTIVE: To explore the association between preseason assessments of (1) isometric hip adductor and abductor strength using a novel field test and (2) the Copenhagen Hip and Groin Outcome Score (HAGOS) and subsequent hip/groin injury in male professional soccer players. METHODS: In total, 204 male elite soccer players from 10 professional A-League and English Football League Championship clubs underwent assessments of hip adductor and abductor strength and completed the HAGOS in the 2017-2018 preseason. All subsequent hip/groin injuries were reported by team medical staff. Data reduction was conducted using principal-component analysis. The principal component for the HAGOS and 3 principal components for strength and imbalance measures were entered, with age and prior hip/groin injury, into a multivariable logistic regression model to determine their association with prospectively occurring hip/groin injury. RESULTS: Twenty-four players suffered at least 1 hip/groin injury throughout the 2017-2018 season. The principal component for between-limb abduction imbalance (peak strength in the preferred kicking limb - nonpreferred limb) (odds ratio [OR] = 0.58; 95% confidence interval [CI]: 0.38, 0.90; P = .011), the principal component for peak adduction and abduction strength (OR = 0.71; 95% CI: 0.51, 1.00; P = .045), and the principal component for the HAGOS (OR = 0.77; 95% CI: 0.62, 0.96; P = .022) were independently associated with a reduced risk of future hip/groin injury. Receiver operating characteristic curve analysis of the whole model revealed an area under the curve of 0.76, which indicates a fair combined sensitivity and specificity of the included variables but an inability to correctly identify all subsequently injured players. CONCLUSION: Hip abduction imbalance favoring the preferred kicking limb, higher levels of hip adductor and abductor strength, and superior HAGOS values were associated with a reduced likelihood of future hip/groin injury in male professional soccer players. J Orthop Sports Phys Ther 2020;50(5):234-242. Epub 17 Sep 2019. doi:10.2519/jospt.2020.9022.

Part II: Comparison of Crossfit-Related Injury Presenting to Sports Medicine Clinic by Sex and Age.

OBJECTIVE: To examine CrossFit-related injuries based on sex and age. DESIGN: Retrospective case series. SETTING: A tertiary-level pediatric sports medicine clinic. PARTICIPANTS: CrossFit athletes. MAIN OUTCOME MEASURES: CrossFit-related injuries by sex (males vs females) and age groups (≤19 years vs >19 years) using a χ analysis with P = 0.05, odds ratio (OR), and 95% confidence interval (95% CI). RESULTS: Among injured CrossFit athletes, female athletes sustained lower extremity injuries more frequently than male athletes (P = 0.011; OR, 2.65; 95% CI, 1.25-5.65). In observed CrossFit injuries, shoulder injuries were more frequently observed in male athletes compared with female athletes (P = 0.049; OR, 2.79; 95% CI, 0.98-7.95). Additionally, a greater proportion of CrossFit athletes aged 19 years and younger suffered trunk/spine injuries than those older than 19 years (P = 0.027; OR, 2.61; 95% CI, 1.10-6.21) in injured CrossFit athletes. CONCLUSIONS: The current results indicated sex- and age-specific susceptibility to CrossFit-related injuries based on body parts and diagnoses. The presented information may be useful to develop a safer exercise program, especially for pediatric and adolescent CrossFit participants.

Performance and Return to Sport After Hip Arthroscopy in the National Basketball Association.

PURPOSE: To determine: (1) return to sport (RTS) rate in National Basketball Association (NBA) players following hip arthroscopy, (2) postoperative career length and games per season, (3) pre- and postoperative performance, and (4) postoperative performance compared with control players. METHODS: NBA athletes who underwent hip arthroscopy and matched controls were identified. RTS was defined as playing in at least 1 game after surgery. Player efficiency ratings were used for performance evaluation. Continuous variables of each group were compared using a 2-tailed paired samples Student t test for normally distributed data. χ2 was used to analyze categorical data. RTS was used as the primary outcome with statistical significance defined by a P value < .05. A Bonferroni correction was used to control for the remaining multiple comparisons with statistical significance defined by a P value ≤.008. RESULTS: Twenty-three players (24 hips) were analyzed (mean age 27.5 ± 3.1 years; mean experience in the NBA 5.8 ± 2.8 years at time of surgery). Small forwards (n = 8, 33.3%) represented the largest proportion of players that underwent hip arthroscopy. Twenty players (21 surgeries, 87.5%) were able to RTS in NBA at an average of 5.7 ± 2.6 months. The overall 1-year NBA career survival rate of players undergoing hip arthroscopy was 79.2%. Players in the control group (5.2 ± 3.5 years) had a similar career length as (P = .068) players who underwent surgery (4.4 ± 3.0 years). There was no significant (P = .045) decrease in games per season following surgery. There was no significant difference in performance postoperatively compared with preoperatively (P = .017) and compared with matched controls following surgery (P = .570). CONCLUSIONS: The RTS rate for NBA athletes after hip arthroscopy is high. There was no decrease in games played, career lengths, or performance following hip arthroscopy in NBA players versus preoperatively and matched controls. LEVEL OF EVIDENCE: Level III case-control study.

Return to Play in Amateur Soccer Players Undergoing Hip Arthroscopy: Short- to Mid-Term Follow-Up.

PURPOSE: To describe patient-reported outcomes (PROs) and return to play at any level in amateur soccer players undergoing hip arthroscopy for femoroacetabular impingement syndrome at short- to mid-term follow-up. METHODS: Data were prospectively collected and retrospectively reviewed for patients who underwent hip arthroscopy between March 2009 and June 2014. Patients who participated in amateur soccer within 1 year prior to surgery and intended to return to their sport after hip arthroscopy for femoroacetabular impingement syndrome were considered for inclusion in our study. Patients were excluded if they had a preoperative Tönnis osteoarthritis grade of 2 or greater, previous ipsilateral hip conditions or hip surgical procedures, or Workers' Compensation status. The patients from the initial group who had preoperative and minimum 2-year postoperative measures for the modified Harris Hip Score, Non-Arthritic Hip Score, Hip Outcome Score-Sports Specific Subscale, and visual analog scale for pain were included in our final group. In addition to PROs, data regarding the patients' return to soccer, surgical complications, and secondary surgical procedures were collected. RESULTS: A total of 41 patients were eligible for inclusion in our study, of whom 34 (82.9%) had a mean follow-up period of 47.4 months. Five patients were not eligible because they did not intend to return to soccer. There were 15 male hips (44.1%) and 19 female hips (55.9%). The mean age at surgery was 20.8 ± 7.4 years. All PROs and the visual analog scale score improved significantly from preoperatively to latest follow-up. Of the 34 patients, 27 (79.4%) returned to soccer. Of the patients who returned to soccer, 19 (70.4%) were competing at the same level or a higher level compared with their highest level within 1 year of surgery. Regardless of competitive level, 21 patients (77.8%) reported that their athletic ability was the same as or higher than it was within 1 year of surgery. CONCLUSIONS: Hip arthroscopy was associated with significant improvements in PROs for amateur soccer players. There was a high level of return to soccer and a high proportion of patients whose competitive level was similar or improved. As such, hip arthroscopy is a good option for soccer players, in the absence of underlying osteoarthritis, presenting with hip pathology. LEVEL OF EVIDENCE: Level IV, case series.

Total hip arthroplasty after hip joint gunshot injury.

BACKGROUND: Gunshot injury of the hip joint was reported to constitute 2-17% of all extremity firearm injuries. However, there are few studies in the literature related to gunshot injuries of the hip joint. The aim of the current study was to present the results of 10 cases treated with arthroplasty following a gunshot injury to the hip joint together with the recommended treatment algorithm. METHODS: Patients with a previous medical history of hip joint region gunshot injury who underwent total hip arthroplasty were retrospectively evaluated. Those with incomplete medical records or who were lost to follow-up were excluded. Patients were classified according to the severity of the previous gunshot injury to the hip joint region. Harris hip score (HHS) and Short Form-12 quality of life score were the main outcome measurements. Postoperative complications encountered during follow-up were recorded. RESULTS: The mean age of the patients at the time of surgery was 29.9 years. The mean preoperative HHS was 25.2 points and it was 65.8 at the final follow-up. Patients with bullet fragments in the hip joint, classified as group 1, had better HHS, whereas those with contaminated hip joint with intestinal flora, classified as group 3, had worst HHS. CONCLUSION: Hip arthroplasty after hip joint gunshot injury is a good treatment choice in young patients to reduce pain and regain functions. However, very high infection rates can be seen in patients with accompanying intestinal injury.

Use of ceramic-on-ceramic bearing in total hip arthroplasty for posttraumatic arthritis of the hip.

PURPOSE: We aimed to evaluate (1) the intraoperative parameters, (2) cup position, (3) complications, (4) long-term results, and (5) the survivorship of cementless total hip arthroplastys (THAs) with use of ceramic bearings in patients with a history of acetabular fracture. METHODS: We compared 57 THAs in patients, who were treated due to previous acetabular fracture (posttraumatic group), with 57 propensity score-matched THAs in patients, who were operated due to femoral head osteonecrosis (osteonecrotic group), at a minimum of 5-year follow-up. RESULTS: The operation time was longer ( p = 0.008), and the volume of transfusion was larger ( p = 0.0.23) in the posttraumatic group. The cup abduction (39.4° ± 6.0° vs. 39.7°±4.8°) and anteversion (24.7° ± 8.0° vs. 26.7°±7.7°) were similar between the two groups. There was one dislocation in the posttraumatic group. There was no ceramic fracture in either group. One posttraumatic patient underwent excision of exuberant heterotrophic ossification at 3 years after the arthroplasty. The mean University of California, Los Angeles activity improved from 3.6 to 4.9 points in the posttraumatic group and 3.5 to 5.2 points in the osteonecrotic group. All acetabular cups and femoral stems had bone-ingrown stability. When reoperation for any reason was used as the end point, the 10-year survival rate was 98.3% (95% CI: 95.0-100) in the posttraumatic group and 100% in the osteonecrotic group. CONCLUSION: In our study, posttraumatic patients had longer operation time and larger volume of transfusion than osteonecrotic patients. However, medium-term results and survivorship were similar with those of osteonecrotic patients.