Distal Tibiofibular Malreduction in Ankle Fractures Received Fibula Plate and Syndesmotic Screw Fixation.

BACKGROUND: The aim of the study was to examine the effect of the position of the plate and syndesmotic screw on postoperative tibiofibular joint malreductions in cases where the syndesmotic screw is inserted through the hole of the anatomically locked lateral distal fibula plate. METHODS: Thirty patients (13 female and 17 male patients) with postoperative computed tomographic scans were examined retrospectively. Patient information (eg, tibiofibular congruence measured from postoperative computed tomographic scans, the anterior and posterior tibiofibular distance at axial sections, the presence and orientation of fibular rotation, the presence of tibiofibular intraarticular piece, the angle between the syndesmotic screw and incisural line, the placement of the plate, and the localization of the screw on the fibula in axial images) was recorded. RESULTS: Those with fibular internal rotation had a lower syndesmotic screw-incisural line angle (SIA) (P = .001).There was a very strong negative significant correlation between the tibiofibular angle and SIA (rho, -0.780; P = .001). The median tibiofibular angle was found to be higher in cases with the fibula plate placed anteriorly (P = .009).The median SIA was found to be lower in cases with the fibula plate placed anteriorly (P = .004).The rate of placement of syndesmotic screw in the anterior third of the fibula was found to be high in cases with the fibula plate placed anteriorly (P = .049). CONCLUSIONS: In ankle fractures treated with insertion of a syndesmotic screw through the plate, the orientation of the syndesmotic screw in the axial plane and the position of the plate may be associated with the incidence of postoperative syndesmosis malreduction.

Comparison of Supination-Adduction Type 2 and Supination-External Rotation Type 4 in Bimalleolar Ankle Fractures: Does Partial Pylon Variant of Supination-Adduction Type Fracture Affect Functional Outcomes?

BACKGROUND: Supination-adduction (SAD) type injuries are pylon variant injuries and lie between partial intra-articular pylon fractures and rotational ankle fractures. We aimed to evaluate functional outcomes of SAD type 2 bimalleolar fractures in comparison to supination-external rotation (SER) type 4 fractures. METHODS: We retrospectively reviewed data of 42 cases with SER type 4 and 20 cases with SAD type 2 injuries. Patients with a history of rheumatic disease, open fractures, pathologic fractures, nonbimalleolar fractures, neuropathic disease, and talus osteochondral lesion, and those operated on after greater than 72 hours because of skin lesion or managed with a two-stage surgical protocol after external fixation, were not included in the study. We compared these two groups in terms of the mean age, follow-up time, visual analog scale pain and American Orthopedic Foot and Ankle Society scores, Kellgren-Lawrence arthrosis classification, union time, and complications. RESULTS: The groups did not differ in terms of mean age (P = .115) and sex (P = .573). There was no significant difference in terms of union time between the groups (P = .686). American Orthopedic Foot and Ankle Society score was significantly higher in the SER group (91.2 ± 9.9) than in the SAD group (86.1 ± 13.2; P = .034). Visual analog scale pain scores were similar in the SAD (0.3 ± 0.92) and the SER (0.26 ± 0.7) groups (P = .897). CONCLUSIONS: Supination-adduction bimalleolar fractures may have worse functional outcomes in the intermediate term than do SER bimalleolar fractures, implying pylon variant fractures as a mechanism of injury. Supination-adduction bimalleolar fractures might be associated with a high rate of intra-articular cartilage impaction, resulting in varus deformity after surgery.

Effect of psoas and gluteus medius muscles attenuation on hip fracture type.

INTRODUCTION: Sarcopenia is defined as a progressive loss of muscle mass and function with increased age. The measurement of muscle mass and attenuation on the axial computed tomography (CT) scan has been reported to be a good indicator for sarcopenia in previous literature. This study aimed to compare muscle mass between the intertrochanteric fracture and femoral neck fracture groups by accurately measuring muscle mass around the hip joint using a CT scan. METHODS: The cases were matched according to age and gender on a 1-to-1 basis. As a result, a total of 400 patients, 200 patients in each group with the same age and gender characteristics, were included in the study. At the disc of L4-L5 level, the cross-sectional area (CSA) of the psoas muscle was evaluated, and at the disc of L5-S1 level, the CSA of the psoas, iliacus and gluteus medius muscles were evaluated. In addition, attenuation was evaluated using the average Hounsfield Unit (HU) for the specific area. RESULTS: The mean age of 400 patients (262 females, 138 male) included in the study was 78.49 ± 7.67 years. It was observed that the mean HU values of the patients in the femoral neck fracture group were significantly higher than the intertrochanteric fracture group (p < 0.001, p = 0.008; respectively). At the same time, the mean HU values of the gluteus medius muscle were higher in the femoral neck fracture group (p < 0.001), but in contrast with the psoas muscle, the CSA values of gluteus medius muscle were significantly higher in the intertrochanteric fracture group (p = 0.017). CONCLUSIONS: Fatty degeneration of the psoas muscle among the muscles around the hip may affect the type of hip fracture. Elderly patients with strong psoas muscles may experience femoral neck fracture due to contraction and torsion during falling.

Syndesmosis Injuries in Lateral Malleolar Fractures Accompanied by a Posterior Malleolar Fracture: A Nonfixed Posterior Fracture Fragment May Not Affect Postoperative Tibiofibular Joint Malreduction Rates.

BACKGROUND: The fact that lateral malleolar fracture is accompanied by posterior malleolar fracture may adversely affect syndesmosis malreduction rates. We aimed to compare syndesmosis malreduction rates determined on postoperative radiographs between isolated lateral malleolar fractures and lateral malleolar fractures accompanied by posterior malleolar fractures. METHODS: We retrospectively examined 128 operative patients: 73 with isolated lateral malleolar fractures (group L) and 55 with lateral + posterior malleolar fractures (group LP). In group LP, no patients received posterior fragment fixation. In both groups, indirect syndesmosis fixation was performed with a single screw after open reduction and internal fixation of the lateral malleolus. Patient age, sex, fracture side, fracture type (Lauge-Hansen and Danis-Weber classifications), Kellgren-Lawrence osteoarthritis classification, syndesmotic incongruency on postoperative radiographs, syndesmotic malreduction of postoperative fibula fracture, fracture union time, complication rates, accompanying injuries, and preoperative and postoperative radiographic syndesmotic measurements (tibiofibular overlap, tibiofibular clear space, medial clear space) were recorded, and the groups were compared. RESULTS: Mean ± SD age was 44.32 ± 15.66 years in group L and 48.93 ± 14.03 years in group LP (P = .087). There were no significant differences in preoperative and postoperative tibiofibular distance, tibiofibular overlap, and medial clear space values between groups (P > .05). The prevalence of grade 2 fractures according to the Kellgren-Lawrence classification was significantly higher in group LP (P = .047). Postoperative syndesmosis malreduction was detected in 12 patients in group L and in nine in group LP (P = .991). CONCLUSIONS: In lateral malleolar fractures accompanied by small-fragment posterolateral or avulsion-type posterior malleolar fractures, closed syndesmotic screw fixation does not cause syndesmosis malreduction.

Approach to Displaced Intra-Articular Calcaneus Fractures After Attempted Suicide Among Patients With Psychiatric Disorders: Nonsurgical or Surgical?

Displaced intra-articular calcaneus fracture is one of the injurious events in psychiatric patients after high-jump suicide attempts. These patients are reported to have poorer compliance and worse postoperative outcomes compared to those with no psychiatric condition.  We aimed to compare nonsurgical and surgical treatment with respect to functional and radiological outcomes and complications in this patient. We evaluated medical records of 42 psychiatric patients who had displaced intra-articular calcaneal fractures after high-jump suicide attempt. 20 (54%) of these were treated nonsurgically and further 17 patients (46%) received surgical intervention. We compared to nonsurgical and surgical approaches statistically. The mean follow-up period were 30.4 ± 8.02 months and 31.8 ± 7.5 months in the nonsurgical and surgical groups, respectively. Böhler's angle was significantly higher in the surgical group (30.4 ± 6.4) than that in the nonsurgical group (16.1 ± 3.7) (p = .001). AOFAS scores and supination levels were significantly higher in the surgical group than that in the nonsurgical group (p ≤ .05). During the follow-up period, one patient from the surgical group re-attempted high-jump suicide and died, and another one caused the subtalar joint to re-collapse after full weightbearing on the first postoperative day. Surgical treatment of displaced intra-articular calcaneal fractures following a high-jump suicide attempt in psychiatric patients may not cause increased complication rates. However, behavioral manifestations of the psychiatric disorder might be associated with several complications. Should any surgical intervention be decided, minimal invasive approach would be the appropriate choice.

Retrospective analysis of 35 pediatric femoral neck fractures.

OBJECTIVE: Pediatric proximal femur fracture is extremely rare trauma comparing to other fractures. The proximal femur fracture is 1% of all pediatric fractures. The aim of current study is to compare the incidence of early complications and outcomes of pediatric proximal femur fractures regarding fracture types retrospectively. DESIGN: Our study includes 35 cases which are criticized by Delbet classification system, modalities of treatment, duration of waiting for surgery, duration of follow-up and also complications. Our inclusion criteria are age below 16 years old, proximal femur fractures with no evidence of tumoral, romathologic and methabolic conditions. Age, sex and surgery type (open-closed) were noted, and the data were statistically assessed. Assessment of the final outcome was made at the last follow-up visit using the Ratliff's method. RESULTS: The mean of age of patients in our study is 9.5 ± 5.06 years. The average follow-up was 25.6 ± 13.2 months. 15 patients (42.9%) are type 2 Delbet fracture, 5 patients (14.2%) are Delbet type 3 and 15 patients (42.9%) are Delbet type 4 fracture. Using the Ratliff's method, 25 patients (71.4%) had satisfactory outcomes. Ten patients (28.6%) had unsatisfactory outcomes. The complications as AVN, coxa vara and premature closure of physis, non-union and postoperative infections have been detected in this study. AVN was seen in four (11.4%) patients. In addition, coxa vara was seen in six (17.2%) patients. CONCLUSION: Pediatric femoral neck fractures are extremely rare fractures and can be treated with low complication rates in cases with early treatment and anatomic reduction.

Distal metatarsal osteotomy and dorsal neutralization plate in the treatment of hallux valgus.

PURPOSE: Hallux valgus is a disease that can be treated with many different surgical procedures. In our study, we aimed to compare patients with and without dorsal neutralization plate after distal metatarsal osteotomy and fixation with compression screws. METHODS: The files of 59 patients with 89 feet operated with the diagnosis of moderate degree hallux valgus have been examined retrospectively. Hallux valgus angles, AOFAS, VAS and satisfaction scores, time to return to work of both groups were compared. The cases in which only screw fixation was performed were mobilized with the hallux valgus apparatus for 6 weeks postoperatively, while the cases in which dorsal neutralization plate was performed were immediately mobilized full weightbearing without using an additional apparatus. Patients with a minimum follow-up of 2 years were included in the study. RESULT: There was no statistically significant difference between the two groups in terms of being bilateral (p = 0.457), mean age (p = 0.105) and gender data (p = 0.105). There was no significant difference in the preop and postop second year hallux valgus angles, AOFAS, VAS and satisfaction scores of the patients. There was a significant difference in the time to return to work (p < 0.001) and the 6th week AOFAS (p < 0.001), VAS (p < 0.001) and postop satisfaction (p < 0.001) scores between the two groups. CONCLUSION: The dorsal neutralization plate performed in addition to the compression screw after distal metatarsal osteotomy can cause painless early postoperative results that do not require the use of an additional apparatus, and early good functional results.

The Effect of Syndesmotic Screw Level on Postoperative Syndesmosis Malreduction.

Tibiofibular injury repair of ankle fractures may result in over-compression when performed via a partially threaded screw depending on its placed level. We aimed to examine the relationship between the screw level relative to the tibiotalar joint and syndesmosis malreduction in postoperative radiographs of ankle fractures treated with partially threaded screws. We retrospectively analyzed 129 patients who underwent surgery due to lateral malleolar fractures between 2011 and 2019. We measured the distance between the screw and the tibiotalar joint and stratified the patients per their screw level as either trans-syndesmotic or suprasyndesmotic. According to Lauge-Hansen, 83 cases were supination-external rotation type (64.3%), and the remaining were pronation-external rotation type (35.7%) injuries. We found postoperative syndesmosis malreduction in 20 cases (15.5%). Eight (6.2%) cases had medial clear space mismatch. As the distance of the screw to the joint increased, postoperative medial clear space values increased (rho: 0.190, p = .031). The relationship between postoperative syndesmosis mismatch and the level of the syndesmotic screw was statistically significant (p = .044). In syndesmosis repair with a partially threaded screw, as the distance of the screw from the joint increases, the over-compression caused by the screw may cause an increase in postoperative syndesmotic malreduction rates.

The effect of gluteus maximus tenotomy in primary total hip arthroplasty with posterior approach: Kinematic analysis of hip extensor strength.

BACKGROUND: The posterior approach (PA) is the most commonly used surgical approach for total hip arthroplasty (THA), but the proximity of the sciatic nerve may increase the likelihood of sciatic nerve injury (SNI). Gluteus maximus tenotomy can be performed to prevent SNI because tenotomy increases the distance between the femoral neck and sciatic nerve and prevents compression of the sciatic nerve by the gluteus maximus tendon (GMT) during hip movements. We aimed to kinematically compare the postoperative hip extensor forces of patients who have and have not undergone gluteus maximus tenotomy to determine whether there is a difference in hip extensor strength. METHODS: Seventy-two patients who underwent gluteus maximus tenotomy during THA were included in the group 1, and 86 patients who did not undergo tenotomy were included in group 2. The Harris hip score, body mass index and hip extensor forces were measured both preoperatively, and 6 months after surgery with an isokinetic dynamometer and compared. RESULTS: The mean age was 64.6 ± 2.3 years in group 1 and 63.8 ± 2.1 in group 2. Mean body mass index was 25.7 ± 1.1 in group 1, and 25.5 ± 1.3 in group 2. Baseline Harris hip score (HHS) was 42.36 ± 12 in group 1 and 44.07 ± 9.4 in group 2 (p = 0.31), whereas it was 89.1 ± 7.8 and 88.4 ± 8.1 at 6 months after surgery, respectively. Baseline hip extensor force (HEF) was 2 ± 0.4 Nm/kg in group 1, and 2.1 ± 0.7 Nm/kg in group 2 (p = 0.28), while it was 2.4 ± 0.6 Nm/kg, and 2.5 ± 0.5 Nm/kg, respectively at 6 month follow-up (p = 0.87). Both groups had significantly improved HHS and HEF when comparing baseline and postoperative measurements (p < 0.0001). No cases of sciatic nerve palsy were noted in group 1, whereas there were two (2.32%) cases in group 2, postoperatively. CONCLUSION: The release of the GMT during primary hip arthroplasty performed with the PA did not lead to significant decrease in hip extension forces. Hip extensor strength improves after THA regardless of tenotomy. Gluteus maximus tenotomy with repair does not reduce muscle strength and may offer better visualization.

Next generation human brain models: engineered flat brain organoids featuring gyrification.

Brain organoids are considered to be a highly promising in vitro model for the study of the human brain and, despite their various shortcomings, have already been used widely in neurobiological studies. Especially for drug screening applications, a highly reproducible protocol with simple tissue culture steps and consistent output, is required. Here we present an engineering approach that addresses several existing shortcomings of brain organoids. By culturing brain organoids with a polycaprolactone scaffold, we were able to modify their shape into a flat morphology. Engineered flat brain organoids (efBOs) possess advantageous diffusion conditions and thus their tissue is better supplied with oxygen and nutrients, preventing the formation of a necrotic tissue core. Moreover, the efBO protocol is highly simplified and allows to customize the organoid size directly from the start. By seeding cells onto 12 by 12 mm scaffolds, the brain organoid size can be significantly increased. In addition, we were able to observe folding reminiscent of gyrification around day 20, which was self-generated by the tissue. To our knowledge, this is the first study that reports intrinsically caused gyrification of neuronal tissue in vitro. We consider our efBO protocol as a next step towards the generation of a stable and reliable human brain model for drug screening applications and spatial patterning experiments.

Does Localisation of Fracture Line, According to Epicondyles, Affect Ligamentotaxis Negatively in Displaced Pediatric Supracondylar Humerus Fractures?

OBJECTIVE: To investigate the effect of localisation of the fracture line according to the trans-epicondylar line on open reduction rates and postoperative reduction quality. STUDY DESIGN: Observational study. PLACE AND DURATION OF STUDY: Department of Orthopedic and Traumatology, Prof. Dr. Cemil Tascioglu City Hospital, Istanbul, Turkey, from January 2011 to December 2018. METHODOLOGY: Pediatric cases (37 females-54 males) which underwent surgery with Gartland type three supracondylar humerus fracture having extension deformity, were included and examined retrospectively. Localisation of fracture line according to trans-epicondylar line, presence of postoperative rotation, sagittal and coronal deformity, reduction type and surgery duration were noted. RESULTS: According to trans-epicondylar level, fracture line passed through upper level of the line in 68 cases, while it passed through lower level in 23 cases. Rotation rate of patients, whose fraction line localisation was lower according to trans-epicondylar level (60.87%), was higher than upper localization patients (8.82%, p<0.001). It has been observed that the relation between localisation of fracture line according to trans-epicondylar level and sagittal deformity, coronal deformity, reduction type and surgery durations were similar (p>0.05). CONCLUSION: Determination of localisation of fracture line according to trans-epicondylar level in preoperative roentgenograms may allow the surgeon to predict the possibility of postoperative rotation deformity. Key Words: Fracture line, Humerus, Supracondylar, Pediatric, Epicondyle.

Brain organoid formation on decellularized porcine brain ECM hydrogels.

Human brain tissue models such as cerebral organoids are essential tools for developmental and biomedical research. Current methods to generate cerebral organoids often utilize Matrigel as an external scaffold to provide structure and biologically relevant signals. Matrigel however is a nonspecific hydrogel of mouse tumor origin and does not represent the complexity of the brain protein environment. In this study, we investigated the application of a decellularized adult porcine brain extracellular matrix (B-ECM) which could be processed into a hydrogel (B-ECM hydrogel) to be used as a scaffold for human embryonic stem cell (hESC)-derived brain organoids. We decellularized pig brains with a novel detergent- and enzyme-based method and analyzed the biomaterial properties, including protein composition and content, DNA content, mechanical characteristics, surface structure, and antigen presence. Then, we compared the growth of human brain organoid models with the B-ECM hydrogel or Matrigel controls in vitro. We found that the native brain source material was successfully decellularized with little remaining DNA content, while Mass Spectrometry (MS) showed the loss of several brain-specific proteins, while mainly different collagen types remained in the B-ECM. Rheological results revealed stable hydrogel formation, starting from B-ECM hydrogel concentrations of 5 mg/mL. hESCs cultured in B-ECM hydrogels showed gene expression and differentiation outcomes similar to those grown in Matrigel. These results indicate that B-ECM hydrogels can be used as an alternative scaffold for human cerebral organoid formation, and may be further optimized for improved organoid growth by further improving protein retention other than collagen after decellularization.

Mini-plate fixation via sinus tarsi approach is superior to cannulated screw in intra-articular calcaneal fractures: A prospective randomized study.

OBJECTIVE: Intra-articular displaced calcaneal fractures are common fractures and are often treated with surgical interventions. Sinüs tarsi approach provides secure access to lateral wall and joint facets. The aim of the study is to compare cannulated screw (CS) fixation and mini-plate (MP) fixation via sinus tarsi approach with Sanders types 2 and 3 fracture of calcaneus. METHODS: Sixty patients with Sanders types 2 and 3 calcaneal fracture underwent surgical intervention were randomly allocated into two groups as group MP fixation and group CS fixation regarding osteosynthesis method for 5-year period. Open reduction via sinüs tarsi approach was performed in both groups. Demographic variables, time to surgery (TS), operation duration (OD), length of hospital stay (LOS), surgical complications, and reoperations were recorded. Pre- and postoperative Gissane and Böhler angles; calcaneal length, height, and width; ankle anterior-posterior (AP) and lateral X-rays; and computed tomography were also recorded for radiological evaluation and fracture characteristics. Maryland Foot Score (MFS) was used to evaluate functional outcomes. RESULTS: Preoperative age, type of fracture, calcaneal length, height, and Gissane and Böhler angles, TS, LOS, and OD were not different between the groups. The postoperative calcaneal widening was significantly better restored in group MP compared with that of group CS. The incidence of reoperation and algoneurodystrophy was statistically higher in group CS than group MP. MFS in group MP was also higher than group CS at final visit. CONCLUSION: MP fixation via sinus tarsi approach is superior to CS fixation in Sanders types 2 and 3 calcaneal fractures.

Association between vitamin D concentrations and knee pain in patients with osteoarthritis.

OBJECTIVES: Osteoarthritis (OA) and vitamin D deficiency are common health conditions in older people. Whether vitamin D concentration is associated with knee OA is controversial. In this study, we aimed to determine the association between serum concentrations of vitamin D and osteoarthritic knee pain. SUBJECTS AND METHODS: Vitamin D concentrations were measured with the 25 hydroxyvitamin D test in patients presenting with clinical symptoms of primary knee osteoarthritis. Osteoarthritis was graded on the Kellgren-Lawrence grading scale from anteroposterior and lateral radiographs. Height, weight, and body mass index (BMI) were recorded. Patients completed a 10-cm visual analogue scale (VAS) for indicating pain and the Western Ontario and McMaster Universities Arthritis Index (WOMAC). Vitamin D concentration was defined as severely deficient (<10 ng/mL), insufficient (10 to 19 ng/mL), or normal (20 to 50 ng/mL). RESULTS: Of 149 patients (133 women), the mean age was 63.6 years. Mean vitamin D concentration was 11.53 ng/mL, and 90% patients were vitamin D deficient. Mean WOMAC score was 57.2, and VAS pain score was 7.5. Kellgren-Lawrence grade was 2 for 10 patients, grade 3 for 61, and grade 4 for 88. Mean BMI was 33.4. Mean values of VAS, WOMAC, and BMI did not differ by vitamin D status. CONCLUSION: Serum vitamin D concentration is not associated with knee pain in patients with osteoarthritis.

Compatibility of Lauge-Hansen Classification Between Plain Radiographs and Magnetic Resonance Imaging in Ankle Fractures.

We evaluated the accuracy of the predictive injury sequences of the Lauge-Hansen (L-H) classification using magnetic resonance imaging (MRI) in patients with ankle fractures and determined the possible causes of mismatch. Sixty-five patients with ankle fractures who had a complete series of anteroposterior, lateral, and oblique radiographs and ankle MRI studies available were included. The fracture pattern was assigned by 2 senior orthopedic surgeons according to the L-H classification system. The syndesmotic ligaments, lateral collateral ligaments, and medial deltoid complex ligaments were evaluated on the preoperative MRI scans. Comparisons were performed between the predicted ankle ligamentous injury based on the radiographic L-H classification and preoperative MRI analysis. Of the 65 feet in 65 patients, 50 feet (76.9%) were classified as having a supination-external rotation (SER) fracture, 6 feet (9.2%) as having a pronation-external rotation fracture, 4 feet (6.2%) as having a supination adduction fracture, and 2 feet (3.1%) as having a pronation abduction fracture. The overall compatibility of the radiologic classification with the MRI classification was 66.1%. In the evaluation of 50 feet with the MRI SER designation, maximum compatibility was found for stage 4 (77.3%). The main cause for the discrepancy in the SER designation was missing the presence of deltoid ligament disruption on the plain radiographs, especially in the stage 2 and 3 SER fracture pattern. In the evaluation of deltoid complex injuries, all injuries were localized to the anterior part of the medial deltoid complex. The validity of the L-H classification system was low. A new classification system is needed to address the medial malleolus fracture or deltoid complex injuries without posterior injury. Also, stress radiographs could be added to standard radiographs for the classification to address deltoid complex injuries.

High Varus Angle and Lower Posterior Tibial Slope Associated with PCL Injury in Cruciate Retaining Total Knee Arthroplasty: An MRI Study.

The posterior tibial slope (PTS) is important for performing a tibial cut that does not injure the posterior cruciate ligament (PCL). In this study, the amount of PCL fibers sacrificed under simulated tibial cuts with varying posterior inclinations was evaluated using magnetic resonance images (MRIs) of osteoarthritic varus knees. Knee X-rays, orthoroentgenograms, and MRIs of 113 Kellgren and Lawrence grades 3 to 4 osteoarthritic knees were included. Four different simulated tibial cuts were performed at 0, 3, 5 degrees and parallel to the tibia plateau 3 mm below of the most defective part of the cartilage in the medial plateau. Correlations between the PCL avulsion amount and the PTS and varus alignment of the lower extremity were analyzed for all four simulated tibial cut levels. The maximum amount of PCL was preserved with a 0-degree tibial cut in patients with a PTS of more than 8 degrees. With increased tibial cut angles, the posterior slope resulted in an increased amount of avulsed PCL. Although the amount of avulsed PCL was proportional with the varus alignment, it was inversely proportional with the sagittal slope. The number of injured PCLs also increased as the slope of the tibial cuts increased. Patients with mild varus alignments and high PTSs are more suitable for cruciate retaining total knee arthroplasty.

Arthroscopy-assisted versus standard intramedullary nail fixation in diaphyseal fractures of the humerus.

PURPOSE: The aim of this study was to assess applicability of arthroscopic technique in intramedullary nail fixation of humerus shaft fractures and to compare with conventional nailing in terms of its effects on perioperative and postoperative intra-articular complication rates as well as on clinical and functional outcomes. METHODS: This prospective randomized controlled clinical trial included 40 patients (12 females and 28 males) indicated for surgery between either undergo arthroscopy-assisted (Arthroscopy-assisted intramedullary nailing [AIMN]; n = 20) or conventional (Intramedullary nailing [IMN]; n = 20) anterograde intramedullary nailing. Two groups were compared in terms of mean number of fluoroscopic shootings until the guide wire was inserted, time for union, length of hospital stay, and complication rates. Shoulder functions were assessed by Constant and American Shoulder and Elbow Surgeons (ASES) score. RESULTS: Groups did not significantly differ in terms of age, gender, and mechanism of injury, length of hospital stay, union rate, and mean union time ( p > 0.05). Mean ASES and Constant scores were found to be statistically significantly higher in AIMN group than that in IMN group ( p = 0.000 and p = 0.002, respectively). Mean number of fluoroscopic shootings until the guide wire was inserted was 2.15 in AIMN group, which was significantly lower compared to 4.2 of IMN group ( p = 0.000). CONCLUSIONS: Arthroscopy-assisted technique may be an applicable and safe method owing to its cosmetic advantages and more satisfactory postoperative shoulder functions subsequent to less injury to deltoid, rotator cuff, and other soft tissue, as compared to conventional anterograde approach.

The results of Bankart repair without capsular plication in patients with recurrent traumatic anterior shoulder dislocation.

PURPOSE: The aim of this study was to evaluate the results of patients with recurrent anterior shoulder dislocation, who had been treated with repair of the Bankart lesion without capsuler plication. MATERIAL AND METHOD: The study included 22 shoulders of 22 patients (16 males and 6 females) with a mean age of 28 years, who underwent Bankart repair between 2011 and 2014. Patients with bilateral shoulder instability, multiple instability, >25% glenoid bone loss, and those with a history of shoulder surgery were not included in the study. The average follow-up time was 21.2 months. Evaluation was made of the preoperative number of dislocations, postoperative recurrence, functional status, and daily activity performance of the patients. Shoulder range of motion was measured. The results were evaluated using the Rowe shoulder score and the Oxford shoulder instability score. RESULTS: Recurrence was observed in only one patient who had a shoulder dislocation after trauma, thus giving a recurrence rate of 4.5%. Shoulder range of motion was full in all except that one patient. The mean Rowe shoulder score was 95.5 (excellent) and Oxford shoulder stability score was 44.6 (excellent). CONCLUSION: No recurrent shoulder dislocation was observed in patients who underwent Bankart repair surgery. Plication was not performed with the Bankart repair. Close to full range of motion was obtained in all patients. In conclusion, Bankart repair alone can be considered to be sufficient for the treatment of traumatic recurrent anterior shoulder instability.

Infrapatellar Fat Pad Excision during Total Knee Arthroplasty Did Not Alter the Patellar Tendon Length: A 5-Year Follow-Up Study.

Partial or total resection of the infrapatellar fat pad (IPFP) helps surgeon improve access to lateral tibial plateau for better placement of the knee prosthesis. We aimed to investigate the effect of IPFP excision on clinical and radiologic outcomes including patellar tendon length (PTL), range of motion, and functional scores after total knee arthroplasty (TKA) at 5-year follow-up. We retrospectively evaluated postoperative first X-rays (day 0) and postoperative final 5-year control views of 228 knees in patients with primary osteoarthritis who underwent TKA between September 2006 and December 2009 in our hospital. Exclusion criteria were patients who had lateral release, patellar resurfacing, septic or aseptic loosening, fracture around the replaced knee, any other prior knee surgery, or any systemic inflammatory disease. IPFP was completely resected in all knees to enhance surgical exposure and patellar mobilization. Radiologic evaluation of PTL was performed in early postoperative and 5-year control X-rays comparatively. The mean early postoperative PTL was 47.4 ± 6 (range: 35-72), the mean final postoperative PTL was 47 ± 6.3 (range: 33-68) (p = 0.1). The average preoperative flexion was 115 ± 11 degrees, whereas it was 111 ± 4 degrees, postoperatively (p = 0.73). Both the clinical and functional outcome scores improved in all patients. IPFP excision during TKA did not alter PTL at 5-year follow-up. A focus on other surgical and/or host-related factors may help clarify contradictory patellar tendon shortening reported in the literature.

Anterograde Headless Cannulated Screw Fixation in the Treatment of Medial Malleolar Fractures: Evaluation of a New Technique and Its Outcomes.

OBJECTIVE: To evaluate the functional and radiological outcomes of anterograde headless cannulated screw fixation for medial malleolar fractures. SUBJECTS AND METHODS: This study included 12 patients (8 males, 4 females; age 27-55 years) with medial malleolar type B fractures according to the Herscovici fracture classification who had undergone anterograde headless cannulated screw fixation surgery between 2012 and 2014. Seven had an isolated medial malleolar fracture and 5 a bimalleolar fracture. All of the bimalleolar fractures were classified as 44-B2 based on the Arbeitsgemeinschaft für Osteosynthesefragen/Orthopaedic Trauma Association (AO/OTA) classification. Postoperatively, bone union was evaluated on direct radiographs at the final follow-up examination. The American Orthopaedic Foot and Ankle Society (AOFAS) scoring system was used for clinical evaluation. RESULTS: The mean follow-up period was 17.2 ± 5.3 months (range 12-23). Full union was achieved in all fractures. The mean time to union was 3.4 ± 1.5 months (range 2-5). No instability, loss of reduction, non-union or infection was observed in any patient. The mean AOFAS score was 95.0 ± 5.4 (range 87-99). Based on the AOFAS score, 4 patients showed good results and 8 excellent results. The mean time to return to the previous level of activity was 4.0 ± 2.5 months (range 2-5). CONCLUSION: In this study, anterograde headless cannulated screw fixation yielded good clinical outcome in the surgical treatment of Herscovici type B fractures.