Biomedical subjects

Muharrem Babacan

Publications and source records attributed to Muharrem Babacan.

5 recordsLinked to original sources

PubMed2005

Evaluation of patellar height and measurement methods after valgus high tibial osteotomy.

Several controversies exist regarding the surgical difficulties and the results of total knee arthroplasty performed after failed valgus high tibial osteotomy (HTO), and the main subject is the change in patellar height that results as patella baja or infera. The purpose of this retrospective study was to evaluate patellar height after valgus HTO and the measurement methods that were actually used. Eighty-five knees that were subjected to valgus HTO were evaluated both preoperatively and postoperatively according to the Insall-Salvati Index (ISI), Blackburne-Peel Index (BPI), and Caton Index (CI) to assess any alteration of patellar tendon height that was present. All cases underwent closing wedge osteotomy with three staples or plate internal fixation and were allowed early range of motion. Significant decrease in mean patellar height ratios was detected according to all three indexes at 85 months of mean follow-up. The percentages of the decrease were 8.26% in ISI, 9.08% in BPI, and 6.34% in CI. Two knees showed patella infera according to ISI, one according to BPI and three according to CI. There were no significant correlations between the indexes and clinical status of the patients. Elevation of patella relative to the femur in closing wedge valgus HTO procedure due to the shortening of the segment between tibial tuberosity and joint line is normally expected. A significant decrease in patellar height according to ISI suggests that there should be patellar tendon shortening as patellar height cannot be changed. BPI and CI for determining patellar height in valgus HTO do not accurately measure the alteration of patella because they may affect the tibial inclination and antero-posterior translation of the proximal fragment. Another measuring system based on femoral reference points should be proposed to determine the exact change of patellar height in the valgus HTO procedure.

Adult↗

PubMed2005

[Radiologic evaluation of shoulder instability: conventional radiography, computed tomography and magnetic resonance imaging].

Glenohumeral instability remains a very complex and sometimes challenging diagnostic problem. In most patients, the diagnosis relies mainly on history and physical examination. Radiologic studies provide further information about associated lesions. Although the initial imaging modality for any shoulder condition should be routine radiographs, additional imaging modalities are utilized to evaluate treatment options and prognosis. Computed tomography arthrography and magnetic resonance imaging provide valuable information. However, magnetic resonance arthrography may be required in cases in which it is uniquely appropriate for its multiplanar capability and excellent soft tissue contrast.

Arthrography↗

PubMed2004

Medial meniscus anterior horn cyst: arthroscopic decompression.

Meniscus cysts are mostly seen with meniscus tears, and arthroscopic decompression of cysts is gaining great importance in their treatment. In this study, we present a medial meniscus anterior horn cyst without an accompanying tear in the meniscus. A 33-year-old male patient was seen with pain and a palpable mass in his right knee. He complained that the severity of the pain had increased over the previous year. After the clinical and radiologic examinations, a painless, fixed soft tissue mass averaging 4 x 5 cm was located just medial to tuberositas tibia. The cyst was decompressed arthroscopically. In the 18th month of follow up, the mass had totally disappeared and the patient had no pain. Medial meniscus cysts are seen nine times fewer than lateral meniscus cysts. They are mostly accompanied with meniscal tears. Total meniscectomy with arthrotomy, isolated cyst excision, cyst excision, and partial meniscectomy with arthrotomy and arthroscopic partial meniscectomy with cyst decompression are treatment modalities. Arthroscopic meniscal cyst decompression is an important treatment choice and should always be taken into consideration with low morbidity, short recovery period, low recurrence rate, preservation of range of motion, and permission for early mobilization and rehabilitation of the joint.

Adult↗

PubMed2003

[Defective forearm pseudoarthrosis with a neglected elbow dislocation].

Neglected elbow dislocations, rarely seen in the developed countries, are very attractive due to the difficulties of treatment and diversity of prognosis. A 32 year-old woman was admitted with chronic elbow dislocation and defective forearm pseudoarthrosis due to an accident four months prior to admission. Open reduction and distraction arthroplasty using hinged external fixator for the elbow, open reduction and internal fixation with plate-screws with fibula allograft for the forearm was performed. The elbow was stable and had 110 degrees and -15 degrees of active flexion and extension respectively on the ninth month of follow-up. Both radius and ulna were united.

Accidents↗

PubMed2003

[The value of acromioplasty in the treatment of subacromial impingement syndrome].

Although acromioplasty is widely used in the treatment of subacromial impingement syndrome, there is some controversy about the role of acromion morphology in the etiology. The acromion and the coracoacromial ligament provide passive stabilization against upward migration of the humeral head and play an important role in shoulder biomechanics. This article discusses relevant issues on subacromial impingement syndrome pertaining to the acromion and the value of acromioplasty in the treatment.

Acromion↗