SURGICAL TREATMENT OF ACROMIOCLAVICULAR DISLOCATION: HOOK PLATE VERSUS SUTURE BUTTON.

Objectives: We aimed to compare the functional and radiographical outcomes of reconstruction of acute unstable acromioclavicular joint (ACJ) dislocation using Hook Plate (HP) versus Suture Endobutton (SE) fixation techniques. Methods: Forty-six consecutive patients with grade III to V ACJ dislocation according to Rockwood classification who underwent either HP or SE fixation in the period between January 2017 and June 2020 were evaluated. The treatment modalities were divided into either HP or SE fixation. The radiological assessment included standard anterior-posterior (AP) views to evaluate coracoclavicular (CC) distances for vertical reduction. Results: CC distances were grouped as preoperative (CC1), early postoperative (CC2), and late postoperative (CC3). The distance variance between CC2 and CC3 was referred as ΔCC (CC3 - CC2). A statistically significant difference was found in ΔCC between the two groups (p=0.008). ΔCC was significantly higher in the SE group compared to the HP group (p<0.05). The Constant and UCLA Scores of patients in the SE group were found to be significantly higher than in the HP group patients. Conclusion: Clinical outcomes were more satisfactory in patients with acute unstable ACJ dislocation who underwent SE compared to HP procedures, at the end of the first year. Evidence Level IV; Case Series.

Objetivo: Nosso objetivo foi comparar os resultados funcionais e radiográficos da reconstrução da luxação instável aguda da articulação acromioclavicular (ACJ) utilizando técnicas de fixação com placa com gancho (HP) versus botão de sutura (SE). Métodos: 46 pacientes com luxação da ACJ de grau III a V, de acordo com a classificação de Rockwood, que foram submetidos à fixação com HP ou SE no período de janeiro de 2017 a junho de 2020, foram avaliados. As modalidades de tratamento foram divididas em fixação HP ou SE. Na avaliação radiológica, foi utilizada a incidência antero-posterior (AP) para avaliação da redução vertical, por meio da medida da distância córaco-clavicular (CC). Resultados: As distâncias CC foram agrupadas em pré-operatória (CC1), pós-operatória imediata (CC2) e pós-operatória tardia (CC3). A variação da distância entre (CC2) e (CC3) foi denominada ΔCC. Uma diferença estatisticamente significativa foi encontrada na ΔCC entre os dois grupos (p=0,008). O ΔCC foi significativamente maior no grupo SE em comparação com o grupo HP (p <0.05). As pontuações de Constant e UCLA dos pacientes do grupo SE foram significativamente mais elevadas do que as dos pacientes do grupo HP. Conclusão: Os resultados clínicos foram mais satisfatórios com a técnica SE em comparação com a HP ao final do primeiro ano. Nível de Evidência IV; Série de casos.

Surgical treatment of acromioclavicular dislocation: hook plate versus suture button / Tratamento cirúrgico da luxação acromioclavicular: laca de gancho versus botão de sutura

ABSTRACT Objectives: We aimed to compare the functional and radiographical outcomes of reconstruction of acute unstable acromioclavicular joint (ACJ) dislocation using Hook Plate (HP) versus Suture Endobutton (SE) fixation techniques. Methods: Forty-six consecutive patients with grade III to V ACJ dislocation according to Rockwood classification who underwent either HP or SE fixation in the period between January 2017 and June 2020 were evaluated. The treatment modalities were divided into either HP or SE fixation. The radiological assessment included standard anterior-posterior (AP) views to evaluate coracoclavicular (CC) distances for vertical reduction. Results: CC distances were grouped as preoperative (CC1), early postoperative (CC2), and late postoperative (CC3). The distance variance between CC2 and CC3 was referred as ΔCC (CC3 - CC2). A statistically significant difference was found in ΔCC between the two groups (p=0.008). ΔCC was significantly higher in the SE group compared to the HP group (p<0.05). The Constant and UCLA Scores of patients in the SE group were found to be significantly higher than in the HP group patients. Conclusion: Clinical outcomes were more satisfactory in patients with acute unstable ACJ dislocation who underwent SE compared to HP procedures, at the end of the first year. Evidence Level IV; Case Series.

RESUMO Objetivo: Nosso objetivo foi comparar os resultados funcionais e radiográficos da reconstrução da luxação instável aguda da articulação acromioclavicular (ACJ) utilizando técnicas de fixação com placa com gancho (HP) versus botão de sutura (SE). Métodos: 46 pacientes com luxação da ACJ de grau III a V, de acordo com a classificação de Rockwood, que foram submetidos à fixação com HP ou SE no período de janeiro de 2017 a junho de 2020, foram avaliados. As modalidades de tratamento foram divididas em fixação HP ou SE. Na avaliação radiológica, foi utilizada a incidência antero-posterior (AP) para avaliação da redução vertical, por meio da medida da distância córaco-clavicular (CC). Resultados: As distâncias CC foram agrupadas em pré-operatória (CC1), pós-operatória imediata (CC2) e pós-operatória tardia (CC3). A variação da distância entre (CC2) e (CC3) foi denominada ΔCC. Uma diferença estatisticamente significativa foi encontrada na ΔCC entre os dois grupos (p=0,008). O ΔCC foi significativamente maior no grupo SE em comparação com o grupo HP (p <0.05). As pontuações de Constant e UCLA dos pacientes do grupo SE foram significativamente mais elevadas do que as dos pacientes do grupo HP. Conclusão: Os resultados clínicos foram mais satisfatórios com a técnica SE em comparação com a HP ao final do primeiro ano. Nível de Evidência IV; Série de casos.

Prevalence of chondromalacia patella according to patella type and patellofemoral geometry: a retrospective study

Abstract BACKGROUND: The relationships between the morphometric structure of the patellofemoral joint, patella type and chondromalacia patella are still a matter of debate. OBJECTIVE: To identify the prevalence of chondromalacia patella by determining the patella type and making patellofemoral morphometric measurements. DESIGN AND SETTING: Retrospective cohort study in an orthopedics and traumatology clinic in Turkey, conducted between June 2017 and November 2019. METHODS: This study involved 562 knees of 522 patients with anterior knee pain (246 males and 316 females; mean age 46.59 years). The patients were grouped according to presence of chondromalacia patella (group I) or absence of chondromalacia patella (group II). The patella type, lateral trochlear inclination, medial trochlear inclination, trochlear angle, sulcus angle, patellar tilt and Insall-Salvati index were assessed. Group comparisons were made using chi-square tests or Student t tests. The r value was used to determine the magnitude of relationships between pairs of variables. RESULTS: Among the 562 knees evaluated, 265 (50.71%) presented type I patella, 195 (36.7%) type II, 100 (12.3%) type III and 2 (0.3%) type IV. Group I consisted of 448 knees and group II consisted of 114 knees. Significant differences were found between the groups in terms of age, gender, patella type and lateral inclination angles (P < 0.05). CONCLUSION: Detecting the patella type and making lateral inclination measurements in patients with anterior knee pain are of great importance for diagnosing suspected chondromalacia patella, particularly in the early degenerative period.

Lumbopelvic Fixation with Bridged Distal Iliac Screws for Vertically Unstable Sacral Fractures.

Purpose: The purpose of this study is to evaluate preliminary outcomes of vertically unstable sacral fractures treated by lumbopelvic fixation (LPF) augmented transiliac bridged screws. Methods: From April 2017 to December 2019, fifteen consecutive patients with vertically unstable sacral fractures who had undergone LPF augmented transiliac bridged screws were enrolled. The radiological assessment included standard lumbopelvic x-rays and pelvic computed tomography (CT) to evaluate the lumbosacral angle (LSA), sacral kyphosis angle (SKA), lumbar lordosis angles (LLA) and Matta's reduction criterias (MRC). Clinical and neurologic impairment outcomes were evaluated by the Majeed grading scale (MGS) and Gibbons criterias, respectively. Results: All patients were followed for an average of 18 months (range, 14-25). All sacral fractures eventually healed and implant failure did not occur in any patient, though there were two patients with a loss of reduction (< 5 mm) during the follow-up period. According to the MRC, the results were excellent on 14 sides, good on five sides, and fair on one side. The MGS mean score was 82 points (range, 49-98 points); the results were excellent in nine cases, good in four cases, and fair in two cases. There was no statistically significant difference in SKA and LLA in preoperative and postoperative final controls. The preoperative and postoperative LSA were 72 ± 13.9 and 44.1 ± 11.3, respectively, and a statistically significant improvement was observed (p = 0.01). Conclusion: In vertically unstable sacrum fractures, we believe that LPF augmented with transiliac bridging technique may expedite the reduction of vertical sacrum fracture and offers a reinforced fixation choice.

Prevalence of chondromalacia patella according to patella type and patellofemoral geometry: a retrospective study.

BACKGROUND: The relationships between the morphometric structure of the patellofemoral joint, patella type and chondromalacia patella are still a matter of debate. OBJECTIVE: To identify the prevalence of chondromalacia patella by determining the patella type and making patellofemoral morphometric measurements. DESIGN AND SETTING: Retrospective cohort study in an orthopedics and traumatology clinic in Turkey, conducted between June 2017 and November 2019. METHODS: This study involved 562 knees of 522 patients with anterior knee pain (246 males and 316 females; mean age 46.59 years). The patients were grouped according to presence of chondromalacia patella (group I) or absence of chondromalacia patella (group II). The patella type, lateral trochlear inclination, medial trochlear inclination, trochlear angle, sulcus angle, patellar tilt and Insall-Salvati index were assessed. Group comparisons were made using chi-square tests or Student t tests. The r value was used to determine the magnitude of relationships between pairs of variables. RESULTS: Among the 562 knees evaluated, 265 (50.71%) presented type I patella, 195 (36.7%) type II, 100 (12.3%) type III and 2 (0.3%) type IV. Group I consisted of 448 knees and group II consisted of 114 knees. Significant differences were found between the groups in terms of age, gender, patella type and lateral inclination angles (P < 0.05). CONCLUSION: Detecting the patella type and making lateral inclination measurements in patients with anterior knee pain are of great importance for diagnosing suspected chondromalacia patella, particularly in the early degenerative period.

Surgical treatment of scapula body fractures extending glenoid fossa: Surgical technique and early results.

BACKGROUND: The aim of this study was to describe the surgical technique and evaluate functional outcomes following open reduction and internal fixation in patients with scapular fractures. METHODS: In this study, ten patients with scapular fractures with Ideberg type four and five, who had undergone operatively with the Judet approach in three different orthopedic centers between March 2014 and October 2018, were evaluated retrospectively. By the end of at least a 2-year follow-up period, postoperative Disabilities of the Arm, Shoulder and Hand (DASH), Constant questionnaires were evaluated by all participating patients. RESULTS: Three of these patients had fractures on the left; seven patients had fractures on the right side, and the average patient age was 35.1±9.75. Mean Constant and DASH scores were 87.9±13.68 and 5.57±5.21, respectively. In two patients, about 2 cm adjacent to the suprascapular notch, perioperative suprascapular nerve injury was stated and sutured using the epineural technique. By the end of the 2-year follow-up of these two patients, infraspinatus muscle atrophy had occurred. However, external rotation muscle strength was 4/5 in both patients. CONCLUSION: This study suggests that scapula fractures extending glenoid articular surface can be safely fixed through the Judet approach and had satisfactory results. In addition, two patients with traumatic suprascapular nerve injury were encountered during the surgery and repaired which may be hard to diagnose with modified or minimal incisional approaches.

The effect of sagittal orientation of the acromion relative to the scapular spine on the location of rotator cuff tears.

OBJECTIVE: The aim of this study was to investigate the effect of the angle between the scapular spine and acromion in the sagittal plane on the location of chronic rotator cuff tears (RCTs). METHODS: The magnetic resonance images of patients who had undergone an arthroscopic shoulder surgery were evaluated. The patients were divided into two groups: patients who had undergone RCT repair and those who had experienced different shoulder surgery as a control group. The RCT group (study group) was then subgrouped in terms of the location of the tear as posterior-superior RCT type 3, 4, 5 or combination (group A) and anterior-superior RCT type 1,2,3 or combination using the Patte sagittal classification (group B). A novel angle, scapular spine-acromion angle (SSAA), was described in the sagittal plane and compared between the groups and subgroups. RESULTS: A total of 96 patients underwent an arthroscopic RCT repair with a mean age of 59.5 years (range, 36-65 years), and the control group was composed of 40 patients with a mean age of 52.5 (range, 41-63 years). Comparison the group B (mean value: 73.41°±5.98°, median: 73,8°, range: 60.6°-89.7°) has significantly higher degrees of SSAA than group A (mean value: 63.92°±6.82°, median: 64,8°, range: 52.3°-77.9°) (P < 0.001). CONCLUSION: This study demonstrated a higher incidence of posterior- superior RCTs in patients with lower SSAA and anterior-superior RCTs in patients with higher SSAA in the sagittal plane compared to the control group. So sagittal acromial orientation might influence the RCT location. LEVEL OF EVIDENCE: Level III, Diagnostic Study.

Thoracoscopic Vertebral Body Tethering for Adolescent Idiopathic Scoliosis: A Minimum of 2 Years' Results of 21 Patients.

BACKGROUND: Anterior vertebral body tethering (VBT) is a growth modulating and fusionless treatment option that is considered as a new promising method for the management of adolescent idiopathic scoliosis (AIS). This prospective cohort study aimed to present the minimum 2-year results of anterior VBT applied to 21 skeletally immature patients with AIS. METHODS: Twenty-one skeletally immature patients with a diagnosis of AIS were included. A decision to proceed with surgery was established after the detection of curve progression despite the brace (>40 degrees) with a minimum curve flexibility of 30%. RESULTS: Patients had an average age of 11.1 and an average follow-up period of 27.4 months. All patients underwent thoracoscopic placement of thoracic screws, from the convex side of curves. An average of 7.1 levels of tethering was undertaken. Average preoperative major thoracic curve magnitudes improved from 48.2 to 16 degrees on the first erect postoperative x-ray, and to 10 degrees at the last follow-up (P<0.001). Immediate postoperatively, 1 case with chylothorax was detected and treated conservatively, and another case with tether breakage was detected at the third postoperative year and replaced thoracoscopically. No other major complication was acquired. CONCLUSIONS: Anterior VBT as a growth modulating treatment option by allowing the correction of the scoliotic deformity and preserving coronal balance was detected to be a safe and effective option for the surgical treatment of AIS in skeletally immature patients, if applied under strict inclusion criteria. VBT by allowing preservation of spinal segmental motion is yielding promising radiographic results without causing any major complications. LEVEL OF EVIDENCE: Level IV.

Can subcoracoid cyst formation be a sign of anterosuperior rotator cuff tears and biceps pulley lesions? A prospective radiologic and arthroscopic correlation study.

BACKGROUND: The aim of this study was to investigate the pathologies associated with subcoracoid cysts (ScCs) in patients with rotator cuff (RC) tears and the postoperative appearance of ScCs after arthroscopic repair. METHODS: A total of 114 patients who underwent arthroscopic RC repair were prospectively evaluated. The inclusion criteria were as follows: patients with or without ScCs, patients with Patte class 1 or 2 tears, and patients who were 40-65 years of age. Forty-four patients with ScCs (group 1) were evaluated during the 12-month study period. Fifty-two patients who had no ScCs (group 2) were evaluated as a control group. Preoperative and postoperative cyst volumes were measured on magnetic resonance imaging (MRI), and arthroscopic findings were noted. RESULTS: Thirty-one patients (70%) in group 1 had a subscapularis tear vs. 10 patients (19%) in group 2 (P < .001). Biceps lesions were encountered in 32 patients (72%) in group 1, whereas 12 patients (23%) had a biceps lesion in group 2 (P < .001). Cyst volume was significantly higher in the following situations: (1) patients who had a subscapularis tear compared with patients without a subscapularis tear, (2) patients who had biceps pulley lesions compared with patients without pulley lesions, and (3) patients who had both pathologies (P = .047, P = .01, and P = .002, respectively). Cyst volumes significantly decreased following RC repair in group 1 (P < .001). CONCLUSION: Among patients with small- to medium-sized, full-thickness supraspinatus tears, the prevalence of biceps pulley lesions and/or subscapularis tears is higher in patients with ScCs.

Precontoured buttress plate vs reconstruction plate for acetabulum posterior wall fractures: A biomechanical study.

BACKGROUND: The purpose of open reduction and internal fixation of acetabulum posterior wall fractures is to restore anatomical structure and stability of the hip joint, in order to start weight bearing as soon as possible and prevent hip arthrosis; restoration of the anatomy should preserve function of the joint as well. Although "special shaped precontoured plates" have been developed in recent years for surgical treatment of this region, studies comparing the traditional plates with the newly designed precontoured plates are lacking. AIM: To evaluate the biomechanical properties of precontoured anatomic buttress and conventional curved reconstruction plates (CCRPs) for posterior wall acetabulum fracture treatment. METHODS: Twelve pelvis models were created for testing plate treatment of fracture in the posterior wall of the acetabulum. These 12 pelvis models were used to create 24 hemipelvis models (experimental) by cutting from the sagittal plane and passing over the center of gravity, after which the posterior wall acetabular fractures (of similar type and size) were created. In these experimental models, the right acetabulum was fixed with a 5-hole CCRP, while the left was fixed with a precontoured anatomic buttress plate (PABP). Samples were placed through the test device and were subjected to static load testing, with a constant testing velocity of 2 mm/min until the load reached 2.3 kN or the acetabular fixation failed. Dynamic tests were also performed with sinusoidal wave load, with a maximal load of 2.3 kN and a load ratio of 0.1. RESULTS: The average stiffness values were 460.83 ± 95.47 N/mm for the PABP and 291.99 ± 118.58 N/mm for the 5-hole CCRP. The precontoured anatomic acetabulum buttress plates had significantly higher rigidity than the CCRPs (P = 0.022). There was a statistically significant difference between the unloaded and 2.3 kN-loaded values of AL (posterosuperior fracture line vertical to the ground surface) and CL (posteroinferior fracture line vertical to the ground surface) parameters for both the PABPs and the 5-hole CCRPs (P = 0.036 and P = 0.045, respectively). According to the static tests, the amount of total displacement was significantly less in the PABPs than in the CCRPs. Comparative analysis of the displacement in the BL (posterior wall fracture line horizontal to the ground) parameter yielded no statistically significant differences between the PABP and the 5-hole CCRPs (P = 0.261). CONCLUSION: PABP provides more stable fixation in acetabulum posterior wall fractures than 5-hole CCRP, allowing for proximal or distal fracture line screw application without reshaping.

Increasing the deltoid muscle volume positively affects functional outcomes after arthroscopic rotator cuff repair.

PURPOSE: The aim of this study was to determine the effect of changes in deltoid muscle volume (DMV) on the clinical outcomes of patients who underwent arthroscopic repair due to chronic rotator cuff rupture. METHODS: A total of 54 patients (35 females, 19 males) between 40 and 70 years of age who underwent single-row arthroscopic repair due to chronic rotator cuff tears were compared via preoperative (preop) and postoperative (postop) (6-12 months) magnetic resonance imaging (MRI) to determine the total DMV (tDMV). A clinical evaluation was performed with American Shoulder and Elbow Surgeons (ASES) and Constant scores in both the preop and postop groups. tDMV values were also measured in a randomly selected control group (50 patients). A standardized rehabilitation program was recommended for all patients. RESULTS: Positive correlations were found between the change in tDMV (ΔtDMV) and ASES and Constant scores (p < 0.03 and p < 0.032, respectively). The preop tDMV value was significantly lower in the patient group than in the control group (p < 0.02). Significantly lower ΔtDMV and body mass index (BMI)-adjusted tDMV values [Δ(tDMV/BMI)] were observed in patients who had rerupture at the postop MRI. CONCLUSIONS: According to the present study, changes in DMV impact clinical outcomes after rotator cuff repair. Rehabilitation of the DMV or increasing the preop DMV values positively affects postop clinical outcomes. In addition, if the DMV is below the cutoff value during the preop period, there is insufficient improvement in clinical scores. The clinical relevance of this study is the finding that in patients with a chronic rotator cuff tear and a hypotrophic deltoid muscle, increasing the preop DMV could help achieve better functional outcomes. LEVEL OF EVIDENCE: Prognostic, Level 3, case-control study.

The protective effect of Montelukast against skeletal muscle ischemia reperfusion injury: An experimental rat model.

BACKGROUND: Montelukast is a selective leukotriene D-4 receptor antagonist, which specifically and reversibly inhibits cysteinyl leukotriene-1 receptor. The aim of this study was to investigate the protective effect of Montelukast on skeletal muscle reperfusion injury created as acute ischemia-reperfusion (IR) injury in Wistar-albino rats. METHODS: The study comprised 16 male Wistar-albino rats. The rats were randomly separated into two groups as control (IR) and treatment (IR+Montelukast). Ischemia was obtained using a femoral artery clamp. After reperfusion following a 2-hour ischemia, muscle samples were taken for biochemical and histopathological analyses. RESULTS: Malondialdehyde levels were determined to be at statistically higher levels in the control compared with that in the Montelukast group (p=0.002, p<0.01). The superoxide dismutase levels were determined to be at statistically higher level in the Montelukast group compared with that in the control group (p=0.001, p<0.01). In the histopathological examination of the ischemic muscles, edema, polymorinfiltration and erythrocyte extravasation levels were found to be statistically significant higher in the control group than in the Montelukast group. Edema, polymorphonuclear infiltration, and erythrocyte extravasation levels were observed to be significantly reduced in the treatment group compared with that in the control. CONCLUSION: In this model of skeletal muscle acute IR injury, the protective effect of Montelukast against skeletal muscle reperfusion injury was emphasized. We concluded that Montelukast could accelerate functional recovery in the extremity by limiting the local and systemic complications caused by reperfusion in cases such as extremity trauma with vascular injuries and extremity surgery with prolonged tourniquet application. However, further experimental and clinical studies are required to confirm this effect.

A new index for the assessment of distal radius fractures involving the ulnar styloid.

OBJECTIVE: The aim of this retrospective study was to evaluate the relation between a new index we created for the assessment of distal radius fractures involving the ulnar styloid, and the clinical outcome. METHODS: We devised a radiographic separation index (RSI), to evaluate the displacement of the ulnar styloid. We used this index in 44 patients (28 men and 16 women; mean age: 43.2 years; range: 24-64 years) with distal radius fractures involving the the ulnar styloid. In all cases, the distal radius fracture was fixed using a volar locking plate. The styloid fracture was treated conservatively. The relation between the RSI value and clinical results was then investigated. RESULTS: In the 44 patients there were clinically 38 excellent, 4 good, and 2 moderate results. RSI ratios ranged from 2% to 11%. The patients with an excellent result had an RSI ratio of less than 5%. We found a significant correlation between the RSI ratio values and the clinical outcomes. CONCLUSION: Our results suggested that the RSI can be used as a predictor of the clinical outcome in patients with distal radius fractures involving the ulnar styloid.

[Open reduction and K-wire fixation of mallet finger injuries: mid-term results]. / Cekiç parmakta açik redüksiyon ve K-teli ile internal tespit: Orta dönem takip sonuçlari.

OBJECTIVES: We evaluated mid-term results of surgical treatment of mallet finger injuries in patients in whom close reduction was not successful. METHODS: The study involved 34 patients (26 males, 8 females; mean age 27 years; range 21 to 37 years) with mallet finger deformity due to avulsion fracture of the proximal dorsal lip of the distal phalanx. According to the Doyle classification, all injuries were type IVb. Following unsuccessful attempts of closed reduction, the patients were treated with open reduction and K-wire fixation. Cast immobilization of the distal interphalangeal joint was employed for four weeks and rehabilitation was started after removing the K-wires in the sixth week. Radiographic and clinical assessments were made according to the Doyle and Crawford criteria, respectively, after a mean follow-up period of 18 months (range 11 to 34 months). RESULTS: Radiographic union was achieved in all the patients and an anatomic reduction was obtained in 31 patients (91.2%). According to the Crawford criteria, the results were excellent in 27 patients (79.4%), good in four patients (11.8%), and moderate in three patients (8.8%). Patients with a good result had a mean extension loss of 5 degrees , and those with a moderate result had a mean flexion loss of 10 degrees . The remaining patients had full range of motion of the distal interphalangeal joint. None of the patients developed joint subluxation, narrowing of the joint space, or degenerative changes. CONCLUSION: An anatomical reduction is essential in mallet finger deformities. Open reduction and internal K-wire fixation can be preferred due to its low complication rate and ease of application in patients whose mallet deformity cannot be treated by closed reduction.