Background: Prolonged operative time and blood loss may affect the success rate in total hip arthroplasty (THA). The aim of the current study was to evaluate the effects of the press-fit (PF) technique without screws combined with tranexamic acid (TXA) on operative time and intraoperative blood loss in THA.Methods: We retrospectively evaluated 114 hips treated with THA between March 2017 and January 2021 in this study. The patients were divided into three groups, including PF-TXA group, only PF group, and screw group. PF-TXA group received intravenous (IV) 1 g TXA 15 minutes before surgical incision, followed by a peri-articular 1 g/50 ml TXA. Only the PF group and screw group did not receive TXA. The primary outcome measures were operative time and intraoperative blood loss. Secondary outcomes included postoperative blood loss, hemoglobin and hematocrit levels, allogeneic blood transfusions, length of hospital stay, the Harris Hip Score (HHS), and thromboembolic complications.Results: Operative time was lower in the PF-TXA group than that in the only PF and the screw group (p=0.0001). Intraoperative blood loss was significantly different in the PF-TXA group compared with the only PF and the screw group (423 ml, 516 ml, and 534 ml; respectively). The patients who received the PF technique combined with TXA had significantly less hospital stay length than the only PF group and the screw group (p=0.021). Conclusion:The findings obtained in this study suggest that although only the PF technique can provide a shorter operative time compared to using screws, less blood loss may not be obtained using this technique in THA. PF technique combined with TXA significantly decreased operation time and intraoperative blood loss as well as the length of hospital stay following primary THA.

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Purpose: This study aims to find out the incidence, etiology, and risk factors, define clinical features, show the magnetic resonance imaging (MRI) and laboratory findings and share the experience of treatment and clinical outcome of pregnancy-related sacral stress fractures (SSFs). Methods: In total, 29.241 (15.008 of them vaginal and 14.283 of them caesarean section delivery) women gave birth in our hospital between January 2016 and December 2021. Twenty-three of them (0.078%) who had low back and pelvic pain were diagnosed with SSFs using pelvic MRI. Dual-energy X-ray absorptiometry (DEXA) was used to rule out underlying osteopenia and osteoporosis and determine the type of SSFs. Results: To our knowledge, our study is the largest single-center study in the literature about SSFs related to pregnancy and is the first study regarding the incidence of pregnancy-related SSFs that was 0.078% (23/29.241patients). 73.91% of the patients were primigravida. Thirteen patients (56.52%) were classified as fatigue SSFs, eight (34.78%) were insufficiency SSFs, and only two (8.7%) were defined as a mixed type of SSFs Conclusions: Pregnancy-related SSFs are uncommon but should be considered by clinicians in the differential diagnosis of low-back and pelvic pain during pregnancy and the postpartum period. We determined that first pregnancy is a significant risk factor for SSFs. The current study also revealed that laboratory investigation of vitamin D deficiency or insufficiency and DEXA investigation, which may lead to osteoporosis or osteopenia, were crucial in the diagnosis. Furthermore, some SSFs should be reclassified as mixed fractures, fatigue, and insufficiency fractures.

Aim: The primary aim of the study was to determine whether the length of the distal skin incision of the posterolateral approach affects the cup inclination during total hip arthroplasty (THA). Material and Method: In this study, a cohort of 71 consecutive patients who performed between January 2017 and December 2021 with unilateral THA using a posterolateral approach was retrospectively assessed. Two groups were formed according to acetabular cup inclination with normal anteversion angle. There were 56 hips in the inside group and 17 in the outside group. A curvilinear skin incision of around 13 cm was performed. Component position evaluation was carried out through a radiographic assessment of the acetabular component on an anteroposterior pelvis radiograph. The rate of an outlier was compared between groups according to the safe zone defined as 30° to 50° of inclination and 5° to 25° of anteversion, which was described by Lewinnek et al. Results: No significant difference in the average total incision length was found between the two groups (p=0.207). While the average distal incision length was 7.91±0.62 cm (range, 6.8-9 cm) in the inside group and 6.37±0.21 cm (range, 6-6.7 cm) in the outside group. According to ROC analysis, a patient with ≤6.7 cm of the distal length of incision (DLI) was 5.71 times more likely to be outside than a patient with >6.7 cm of DLI. Seventeen hips (23.3%) were found outside the safe range. Substantial differences were observed regarding radiographic cup inclination between the two groups (p=0.0001). In the inside group, the average cup inclination was 44.11°±3.44° (range, 37°-50°), whereas, in the outside group, it was 55.41°±2.5° (range, 52°-59°). However, there were no significant differences in the average radiographic cup anteversion between the two groups (p=0.960). Although 11 of 17 (64.5%) patients were classified as obese (BMI ≥30) in the outside group experienced higher rates of inaccurate cup orientation, logistic regression analysis showed that the individual effects of obesity on the occurrence of the inaccurate cup position were not observed (p=0.884). One posterior hip dislocation occurred after one month postoperative in the outside group. Conclusions: Longer distal portion of the skin incision of the posterolateral approach should be performed to achieve optimal operative inclination angles of the acetabular cup during THA. The surgeon must have no hesitation in extending the distal skin incision when adopting the posterolateral approach.

Bu çalışmanın amacı, karpal tünel cerrahisinde 1-2 cm uzunluğunda tek mini insizyon ile 2-3 cm tek sınırlı insizyonu fonksiyonel sonuç ve komplikasyonlar açısından karşılaştırılarak hangi yöntemin diğerine üstün olduğunu belirlemekti. Mart 2017 ile Nisan 2021 tarihleri arasında karpal tünel cerrahisi geçiren toplam 93 hasta çalışmaya dahil edildi. Mini açık kesi grubundaki 51 hastanın 60 eli ve sınırlı cerrahi grubundaki 42 hastanın 51 eli değerlendirildi. Tüm hastalar postoperatif skar ağrısı, pillar ağrısı ve komplikasyonlar açısından değerlendirildi. Hastalar ortalama 10,05±2,82 ay takip edildi. Mini kesi grubunda ortalama kesi uzunluğu 1,49±0,15 cm iken, sınırlı kesi grubunda ortalama kesi uzunluğu 2,57±0,22 cm idi ve iki grup arasında istatistiksel olarak anlamlı fark vardı (p=0,0001). Ancak skar ağrısı ve pillar ağrısı açısından iki grup arasında istatistiksel olarak anlamlı fark yoktu (sırasıyla p=0,465 ve p=0,519). Mini kesi grubunda hastaların kısıtlı gruba göre daha kısa sürede günlük fiziksel aktivitelerine döndükleri görüldü (p=0,0001). Takip süresi boyunca mini kesi grubunda sadece bir hasta tekrar ameliyat edildi ve sınırlı kesi grubunda tekrar ameliyat gerekmedi. Sonuç olarak, her iki yaklaşım da benzer sonuçlar gösterdi ve karpal tünel gevşetme cerrahisinde güvenli ve etkiliydi. Mini insizyonun daha kısa kesi uzunluğu nedeniyle günlük aktivitelerine dönüşü daha hızlı olmasına rağmen, mini kesi ile tedavi edilen bir hastada yetersiz TKL gevşetilmesi nedeniyle revizyon cerrahisi gerekti. Cerrahlar, mini insizyon tekniği sırasında TKL'nin tam olarak gevşetildiğinin farkında olmalıdır.Anahtar Kelimeler: Karpal tünel sendromu. Mini insizyon. Sınırlı insizyon. Pillar ağrısı. Günlük aktiviteye dönüş. Yetersiz transvers karpal ligament gevşetilmesi.