Lercan Aslan

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Characteristics and Research Trends of the 100 Most-Cited Flatfoot Articles

Journal of the American Podiatric Medical Association, Jun 30, 2023

Intraoperative fluoroscopic safety assessment of femoral head implants with 3-dimensional risk parameters to minimize cut-out

Acta Orthopaedica et Traumatologica Turcica, Aug 31, 2023

Early Periprosthetic Joint Infection Rates Following Total Hip and Knee Arthroplasty: A Single-Center Study

A new checklist surgical hand scrub to replace time-based methods – A pixel intensity analysis

Surgeon-journal of The Royal Colleges of Surgeons of Edinburgh and Ireland, Apr 1, 2023

$Research paper thumbnail of Middle-sized posterior malleolus fractures: Fixed versus non-fixed – A prospective randomized study$

Middle-sized posterior malleolus fractures: Fixed versus non-fixed – A prospective randomized study

Foot and Ankle Surgery, Jun 1, 2023

Higher Critical Shoulder Angle has an Increased Risk of Re-Tear After Arthroscopic Rotator Cuff Repair At Long Term Follow-Up

Journal of Shoulder and Elbow Surgery, Jul 1, 2021

University of California Los Angeles Shoulder Scale--Turkish Version

PsycTESTS Dataset, 2022

A new checklist surgical hand scrub to replace time-based methods – A pixel intensity analysis

The Surgeon

$Research paper thumbnail of Middle-sized posterior malleolus fractures: Fixed versus non-fixed – A prospective randomized study$

Middle-sized posterior malleolus fractures: Fixed versus non-fixed – A prospective randomized study

Foot and Ankle Surgery

University of California Los Angeles Shoulder Scale--Turkish Version

PsycTESTS Dataset

$Research paper thumbnail of Functional outcomes of pediatric true and equivalent Monteggia fractures – Review of the literature$

Functional outcomes of pediatric true and equivalent Monteggia fractures – Review of the literature

Turkish Journal of Trauma and Emergency Surgery

BACKGROUND: This study aims to describe the functional outcome of true and equivalent Monteggia f... more BACKGROUND: This study aims to describe the functional outcome of true and equivalent Monteggia fracture-dislocations in the pediatric population. We also provided a review of the literature about the treatment options. METHODS: Five surgically and three conservatively treated patients were identified who were treated in 2009-2021. The study population consisted of six female and two male patients. The mean age at the time of treatment was 7. The mean follow-up time was 55 months (range, 12-128). The Mayo Elbow Performance Score and the Oxford Elbow Score were used for outcome evaluation. Range of motion and grip strengths were also evaluated. RESULTS: There were two Bado type 1 and six Monteggia equivalent injuries. Closed reduction and casting were utilized for the two Bado type 1 injuries as the initial treatment. However, one had a radial head re-dislocation and had to be treated operatively. This patient had a radial head re-dislocation after the surgery and was followed up conservatively. Three Monteggia equivalent injuries were treated with closed reduction and casting, with no complications. One patient had a radial head anterior dislocation with plastic deformation of the ulna, and this patient was managed with CORA-based corrective ulnar osteotomy. For Monteggia injuries, the main treatment objective is to restore the ulnar length. Bilateral computed tomography imaging with 3D reconstruction can be utilized in preoperative planning of Monteggia fracture-dislocations to customize the treatment. Close observation is essential to detect radial head subluxation, which needs early intervention before irreversible changes occur. CONCLUSION: The true/equivalent Monteggia fractures' main treatment goal is to restore the ulnar length. Conservative treatment, with a close follow-up, is the first option if closed reduction can be achieved. If closed reduction is not possible, careful preoperative planning and early rehabilitation are key to success for management of Monteggia fractures.

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Functional Outcomes of Autologous Matrix-Related Chondrogenesis to Treat Large Osteochondral Lesions of the Talus

Foot & Ankle International

Background: Osteochondral lesions of the talus (OLT) treatment is widely debated when the lesion ... more Background: Osteochondral lesions of the talus (OLT) treatment is widely debated when the lesion size exceeds 150 mm2. The aim of this study was to assess functional outcome and satisfaction rates of the autologous matrix-related chondrogenesis (AMIC) technique and compare the outcomes for OLTs larger than 150 mm2 that were classified as primary, primary with local tumor-related OLT, or revision cases. Methods: A total of 77 patients who were operated by AMIC were included. The average age of the population was 39.6 years. The mean body mass index (BMI) was 27.2. Smoker rate was 28.5% of the population. Forty-two patients were primary cases, 14 patients had primary with local tumor-related OLT, and 18 patients were revision cases. Overall and subgroup functional outcomes were evaluated by visual analog scale (VAS) and Foot and Ankle Disability Index (FADI) scores. Satisfaction rates were queried, and failures were recorded. Results: After a median follow-up of 32 months, the score i...

Assessment of Calcaneal Morphology and Radiological Parameters in Haglund’s Syndrome

Bezmialem Science

Objective: To compare the radiological parameters of the normal population with the patients with... more Objective: To compare the radiological parameters of the normal population with the patients with Haglund's syndrome (HS) and to seek a correlation between pain scores and radiological parameters in patients with HS. Methods: Thirty-one patients surgically treated for HS (Haglund group) and 36 healthy subjects free of hindfoot pathology seen in consultation for any other foot pathologies (control group) were included in the study. Demographic data of the patients were acquired, and radiological measurements such as; Fowler Philip Angle (FPA), lateral talus-first metatarsal angle (LTFMA), and Calcaneal pitch angle (CPA) were recorded. The visual analog scale (VAS) and the American Orthopaedic Foot & Ankle Society (AOFAS) scores of the patients in the Haglund group were assessed.

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Long-term outcomes after arthroscopic transosseous-equivalent repair: clinical and magnetic resonance imaging results of rotator cuff tears at a minimum follow-up of 10 years

Journal of Shoulder and Elbow Surgery, May 13, 2021

PURPOSE The objective of this study was to evaluate long-term functional outcomes and structural ... more PURPOSE The objective of this study was to evaluate long-term functional outcomes and structural integrity of medium to massive rotator cuff tears at 10 to 12 years of follow-up after arthroscopic transosseous equivalent repair (TOE). METHODS A retrospective view was performed on a consecutive series of patients who underwent primary arthroscopic TOE repair of medium to massive size degenerative rotator cuff tears by a single surgeon between January 2007 and August 2009. Patients were examined at a minimum follow-up of 10 years and magnetic resonance imaging (MRI) was performed to assess tendon integrity. Constant score (CS), American Shoulder and Elbow Surgeons (ASES) score and pain level documented using visual analog score (pVAS) were compared between intact repairs and recurrent defects. Univariable analysis was performed to identify factors related to recurrent defect. RESULTS 102 patients met the inclusion criteria and 79 shoulders in 76 patients (74.5% of eligible patients) with a mean age of 55 ± 8 (range, 40-72) years at surgery were available for clinical evaluation at a mean follow-up time of 10.9 (range, 10- 12) years. Mean anteroposterior tear size was 3.1±1.1 cm and there were 41 (52%) medium, 26 (33%) large, and 12 (15%) massive tears. MRI was performed in 72 shoulders in 69 patients (91% of available shoulders) and revealed that 13 shoulders had recurrent defect (Sugaya stage 4 and 5). During follow-up period 3 patients underwent revision surgery and overall recurrent defect rate was estimated as 21.3%. A clinically meaningful improvement was observed in all outcome measures at the final follow-up regardless of tendon integrity. Patients with intact repairs showed superior outcomes compared to those with recurrent defects; however, only the overall CS met the threshold for clinical relevance. A significant linear correlation was observed between Sugaya classification and all outcome scores except CS pain subscale; however, strength of correlation was weak. The presence of diabetes (OR= 8.6, [95% CI, 2.25 - 33.2], P =.002), tear size (OR= 2.08, [95% CI, 1.16 - 3.46], P =.012) and tear retraction (OR= 4.07, [95% CI, 1.11 - 14.83], P =.033) were associated with recurrent defect in univariable analysis. CONCLUSION Arthroscopic TOE repair of rotator cuff tears provided improved clinical outcomes with a recurrent defect rate of 21.3% at 10 to 12 years after surgery. Future research focusing on tendon healing is needed, as repair integrity on MRI correlates with clinical outcomes.

Patients without re-dislocation in the short term after arthroscopic knotless Bankart repair for anterior shoulder instability may show residual apprehension and recurrence in the long-term after 5 years

Journal of shoulder and elbow surgery, Dec 3, 2021

Intraosseous calcific tendinitis of the rotator cuff yields similar outcomes to those of intratendinous lesions despite worse preoperative scores

To evaluate the surgical outcomes of arthroscopic removal of intraosseous deposits in patients wi... more To evaluate the surgical outcomes of arthroscopic removal of intraosseous deposits in patients with intraosseous calcific tendinitis of the rotator cuff. This study involved a retrospective review of 96 patients operated on from 2004 to 2019. Patients were divided into two groups according to the location of calcific deposits. Group I had pure tendinous involvement (n = 71), and Group II had tendinous and intraosseous involvement (n = 25). The mean follow-up time was 6.4 ± 3.9 years. There were 71 patients (46 women, 25 men) in Group I, and the mean age was 49.3 ± 8.2 years (range 30-65 years). In group II, there were 25 patients (18 women, 7 men); the mean age was 47.3 ± 11.2 years (range 28-70 years). The mean preoperative VAS pain score was 8.8 ± 1.4 in Group I compared to 9.5 ± 0.5 in group II (p = 0.017). The median preoperative Constant and Oxford scores were 42 (20-65) and 22 (8-34) in Group I and 25.5 (22-46) and 10 (8-16) in group II, respectively (p < 0.001). There was no difference in postoperative pain scores (Group I: 0.7 ± 1.6 and group II: 0.5 ± 0.6, p = 0.926), Constant scores [Group I: 100 (80-100) and group II: 100 (90-100), (n.s).] and Oxford scores [Group I: 48 (28-48) and group II: 46.5 (4-48), (n.s.)] between the two groups. The number of preoperative injections was higher in Group II (p = 0.05). There was no correlation between the size of the soft tissue calcific deposit and the preoperative pain, Constant, and Oxford scores (n.s.). Arthroscopic debridement of calcific tendinitis with intraosseous involvement is a safe and effective treatment method similar to that of pure tendinous involvement. III.

Variances of the intraarticular landmarks for anterior cruciate ligament tibial footprint: Tibial eminencies have less variability than lateral meniscus on sagittal magnetic resonance scans

<jats:p><jats:bold>Objective: </jats:bold>The purpose of this study was to anal... more <jats:p><jats:bold>Objective: </jats:bold>The purpose of this study was to analyze the sagittal plane variations of intraarticular landmarks for single bundle anterior cruciate ligament (ACL) reconstruction including lateral meniscus, medial and lateral tibial eminencies.</jats:p> <jats:p><jats:bold>Methods:</jats:bold> T2 weighted sagittal magnetic resonance (MR) scans of 80 skeletally mature patients aged between 18 to 60 years and without any sign of ligament and meniscal injuries were viewed. Midpoint of ACL, most posterior aspect of anterior horn of lateral meniscus (LMAH), tip of medial eminence (ME) and lateral eminence (LE) were identified on widest antero-posterior (A-P) distance of tibial plateau according to of Staubli-Rausching method and variances were compared.</jats:p> <jats:p><jats:bold>Results:</jats:bold> Mean location of center of tibial footprint of ACL at sagittal plane was found as 38.0±4.2% (range, 29-51%) on A-P distance of tibial plateau. Location of posterior border of LMAH, ME and LE were 38.0±12.4% (range, 21-62%), 52.3±4.2% (range, 41- 60%) and 59.5±4.4% (range, 51- 69%), respectively. Difference between the variances of ACL midpoint and LMAH was large enough to be statistically significant (p=&lt;.001) with a large effect size (f=0.59), however differences between the variances of ACL midpoint and bony landmarks were not significant (ME, p=.65; LE, p=.33). Intra and interobserver agreement for measurement of all parameters were detected as moderate to good.</jats:p> <jats:p><jats:bold>Conclusion: </jats:bold>There was no constant relationship between ACL midpoint and posterior border of LMAH on sagittal plane MR images. Difference of variances between ACL midpoint and ME and LE were significantly lower than of variances of LMAH.</jats:p>

Undifferentiated pleomorphic sarcoma of skin in unusual locations: Report of two cases

Joint Diseases and Related Surgery, 2021

Undifferentiated pleomorphic sarcoma (UPS) of the skin is a rare soft tissue sarcoma subtype with... more Undifferentiated pleomorphic sarcoma (UPS) of the skin is a rare soft tissue sarcoma subtype with a high risk of metastasis and local recurrence. Ultraviolet exposure plays a prominent role in its etiology. Herein, we present two rare cases of UPS of the skin with an occurrence in non-ultraviolet exposed locations and discuss the need of wide resection and the identification of the depth of the tumor. Due to the resection of the skin, resulting defect was undertaken with skin grafting. One case was extending to the fascia and, after the resection, vacuum-assisted closure therapy was used for the formation of granulation tissue. No recurrence was seen after three and four years for either cases. In conclusion, UPS is a rare, aggressive malignant tumor with a high local recurrence and metastasis rate. Suspicion of malignancy in a plaque-like or nodular lesion in the skin is crucial, and local recurrence and metastasis risk is significantly correlated to the success of wide excision.

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Journal of Shoulder and Elbow Surgery, 2021

The aim of this study is to report long-term results, residual instability, and recurrence rate o... more The aim of this study is to report long-term results, residual instability, and recurrence rate of arthroscopic Bankart repair surgery without a re-dislocation event in the first 5 years. A retrospective analysis of Bankart repairs performed in a single center, by a single surgeon and with a minimum of 5 years follow-up was performed. Patients without a re-dislocation in the first 5 years of surgery were included. Patients with open repairs, revision surgeries, and patients with critical glenoid bone loss were excluded. A total number of 68 shoulders of 66 patients (51 males, 15 females) were included. Patients were analyzed in two domains: (1) Failures as re-dislocations and (2) failures as apprehension and re-dislocations combined (residual instability). Clinical outcomes were assessed using shoulder range of motion, ASES score and WOSI index. Pain, residual apprehension, re-dislocations, and additional surgeries were recorded. The mean age and follow-up duration of patients were 31.16 (16-60) and 8.42±2.1 years, respectively. The median number of dislocations and the time from first dislocation to surgery were 3 (range, 1-20) and 16 months (IQR: 3 - 100.5), respectively. Five patients reported re-dislocations (7.4%) in a mean period of 6.54 ± 2.5 years (range, 5 - 10.8). Seven patients without re-dislocation and 2 patients with re-dislocation reported residual apprehension. The mean shoulder elevation and external rotation were 161.3 ± 12.4 and 39.2 ± 11, respectively. Mean VAS, ASES and WOSI scores were 0.5 ± 1.4; 91 ± 11.9 and 88 ± 12.1 respectively. Age was similar in stable shoulders and shoulders with re-dislocation or residual instability. WOSI score was lower in patients with re-dislocation and residual instability (p=0.030 and p=0.049, respectively). Arthroscopic Bankart repair is a successful surgical option in anterior shoulder instability. A 7.4% re-dislocation rate after 5 years indicates there may be a deterioration of capsulolabral repair in certain patients. The long-term failure pattern may be underestimated in short to mid-term projections.

A Case of Arthroscopic Treatment of Chondroblastoma-Induced Chondropathy Situated at the Posterior Talus

Journal of the American Podiatric Medical Association, 2021

Chondroblastoma located in the talus is a rare incidence, and due to the weightbearing duty of th... more Chondroblastoma located in the talus is a rare incidence, and due to the weightbearing duty of the talus, the results of local excision may not be favorable. While the volume of the tumor increases, more sophisticated techniques may be undertaken. Cell-free matrix application for extensive osteochondral defects is gaining popularity for its structural support when it is used with microfracture and autograft application. In this case report, we present a patient with 13 × 20 × 8mm–sized chondroblastoma located in the talus. After evaluation of the mass, we performed curettage, iliac crest autograft application, and augmentation with cell-free matrix. After uneventful clinical follow up, we present our patient's postoperative second year magnetic resonance imaging and functional status.

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