Op.Dr. Tolgay Şatana / Ortopedi ve Travmatoloji Uzmanı

Op.Dr. Tolgay Şatana / Ortopedi ve Travmatoloji Uzmanı Ortopedi ve Travmatoloji Uzmanı / Orthopedic and Trauma Spine Surgery Minimal Invasive Spine Surger

Ortopedi ve Travmatoloji Uzmanı / Orthopedic and Trauma Surgeon
Spine Surgery
Minimal Invasive Spine Surgery
Sports and Athletic Injury
Arthroscopic Surgery

21/07/2026

Grade 3 Lesions: The Complexity of Incomplete Defects
Grade 3 defects (deep fissures or fragmentation extending down to, but not through, the subchondral bone plate) represent the most difficult clinical “gray zone.”
The Rejection of Microfracture/Drilling: my avoidance of aggressive subchondral drilling or bone impaction for isolated Grade 3 defects aligns with the most progressive models of joint preservation. Intentionally breaking or drilling through the subchondral bone plate to cause bleeding forces the joint to heal via fibrocartilage (Type I collagen) rather than native hyaline cartilage (Type II collagen). Fibrocartilage lacks the structural elasticity and hydrostatic pressure capacity to withstand long-term rotational or compressive stress, ultimately failing under high demand.
The Alternate Pathway: The focus here shifts toward molecular stabilization of the matrix—utilizing advanced orthobiologics (such as high-quality PRP, BMAC, or MFAT scaffolds) combined with advanced hydrogel viscosupplementation. This aims to downregulate catabolic enzymes like MMP-13 and rescue failing chondrocyte mitochondria through pathways such as the SIRT3-PINK1 axis, preserving the remaining cellular framework without destroying structural bone integrity.

10/07/2026

A plica is an embryological remnant consisting of a fold in the syn...

28/06/2026

Translasyonel Rejeneratif Ortopedi ve Gerçek Minimal İnvaziv Cerrahi felsefesinin tam merkezinde yer alan, hücresel ve biyomekanik düzeyde kesinlikle doğru bir yaklaşımdır.
Bir dokuyu hücresel düzeyde onarmak, gençleştirmek veya dejenerasyonu durdurmak (kök hücre, PRP, eksozomlar, akıllı hidrojeller veya mitokondriyel regülasyon gibi yöntemlerle) istiyorsak, o dokunun içinde barındığı “makro-çevreyi” yani anatomik iskeleti sağlam tutmak zorundayız. Açık cerrahilerin veya posterior yapıları tahrip eden UBE (Unilateral Biportal Endoskopi) interlaminar yaklaşımların hücresel tedavilerin önünü kapatmasının temel nedenleri şunlardır:
1. Fibrozis (Skar Dokusu) ve Hücresel İzolasyon
Açık cerrahilerde veya kasları/bağları keserek yapılan interlaminar endoskopik girişimlerde vücut, oluşan devasa cerrahi travmayı iyileştirmek için “rejenerasyon” (yenilenme) değil, “tamir” (fibrozis/skar dokusu oluşturma) yoluna gider. Oluşan bu yoğun skar dokusu damarsızdır, serttir ve normal hücresel matriks yapısından yoksundur. O bölgeye daha sonra enjekte edilecek hiçbir biyolojik ajan veya hücresel tedavi, bu fibrotik bariyeri aşıp hedef dokuya (kıkırdağa veya diske) ulaşamaz ve orayı sağlıklı bir şekilde yeniden modelleyemez.
2. Biyomekanik Zincirin ve Stabilizasyonun Çökmesi
Omurgada diski koruyucu bir tedavi yapabilmek için, o diskin üzerindeki anormal makaslama kuvvetlerinin engellenmesi gerekir. Geleneksel açık cerrahiler veya UBE interlaminar yöntemler; omurganın stabilizasyonunu sağlayan posterior gergi bandını (lamina, ligamentum flavum, faset eklem kapsülü) tahrip ederek o seviyeye ulaşır. Bu yapıların kesilmesiyle omurga segmenti instabil (gevşek) hale gelir. Sürekli anormal mikrokırılmalara ve makaslama kuvvetlerine maruz kalan bir diske veya kıkırdağa siz dünyanın en iyi hücresel tedavisini de uygulasanız, mekanik yıkım (stres) biyolojik yapımı her zaman yenecektir.

3. Eklem ve Disk İçi Hidrostatik Bütünlüğün Kaybı
Kıkırdak ve intervertebral disk dokusu, büyük oranda su tutan (hidrostatik basınçla çalışan) ve kan damarı içermeyen (avasküler) kapalı biyolojik ekosistemlerdir. Beslenmelerini, çevresel difüzyon ve hareket sırasındaki basınç değişiklikleri ile sağlarlar. Açı

23/06/2026

Kinetik Zincirin Çöküşü: Ayaktan Bele Giden Yol
Temel Bozukluk: İçe basma (aşırı pronasyon) veya taban çökmesinin, adım atarken oluşan yer reaksiyon kuvvetlerinin dağılımını nasıl bozduğu.
Yukarıya İletilen Stres: Ayaktaki rotasyonel problemin, bacak kemikleri üzerinden diz eklemine ve oradan da leğen kemiğine (pelvis) asimetrik bir yük olarak aktarılması.
Omurganın Kompansasyonu: Pelvisteki dengesizliğin, lomber bölgedeki disklere ve faset eklemlere normalin çok üzerinde, kronik bir mikro-travma şeklinde yansıması.
lifeisbutadream

When evaluating the functional spinal unit (FSU) across these two paradigms, the fundamental difference lies in how the ...
22/06/2026

When evaluating the functional spinal unit (FSU) across these two paradigms, the fundamental difference lies in how the intervertebral discs and the zygapophysial (facet) joints handle the primary force vectors. One subjects the spine to extreme, high-velocity sagittal loading, while the other places complex, sustained torsional demands on structures that are anatomically designed to resist rotation.
Plyometric Landings: Axial and Anterior Shear
During the amortization phase of a depth jump or box jump, the ground reaction force travels up the kinetic chain, creating extreme axial compression on the lumbar vertebrae.
Disc Mechanics: The nucleus pulposus acts as a hydraulic shock absorber. Under sudden, massive axial load, it pressurizes and transfers forces radially outward against the annulus fibrosus. The vertebral endplates take the brunt of this compressive force; if the load exceeds the structural tolerance, endplate microfractures typically occur before the disc itself fails. 
Anterior Shear: Because landings almost always involve some degree of hip and lumbar flexion to decelerate the body, the compressive load is coupled with significant anterior shear force. The structures resisting this shear are the posterior elements—specifically, the facet joints and the pars interarticularis. If the lumbar spine is forced into extension during impact, the pars acts as the primary bony restraint, which is why repetitive explosive landings without adequate neuromuscular core stabilization are a classic mechanism for stress reactions or spondylolysis.

The Tango Pivot: Rotational Shear and Torsional Stress
A deep pivot (such as a volcada or colgada) shifts the primary mechanical stress from vertical compression to rotational shear, which is significantly more taxing on the connective tissues of the lumbar spine.
Facet Joint Impaction: The anatomy of the lumbar spine is inherently hostile to rotation. The lumbar facet joints are oriented almost entirely in the sagittal plane, mechanically restricting axial rotation to roughly 1 to 3 degrees per segment. During a pivot, if the rotation does not originate entirely from the thoracic spine and hips, the facet joint con

18/06/2026

While you correctly identified the intermetatarsal region as being in the foot rather than the ankle, the actual mechanics of the deformity differ slightly from internal rotation. The “thong” or strap of the flip-flop sits directly in the first web space between your first and second toes, acting as a physical wedge.
As you walk, this strap constantly pushes the big toe laterally (outward, toward the smaller toes). In response to this pressure, the first metatarsal bone deviates medially (inward, away from the second toe) rather than rotating internally. This shifting creates the classic angular deformity at the first metatarsophalangeal (MTP) joint that we call Hallux Valgus.
2. The “Toe-Grip” Compensation
Because flip-flops lack a heel strap or a structured upper, your foot has to work unnaturally just to keep the shoe from flying off. During the swing phase of your gait, your toes are forced to constantly “grip” or claw downward. This chronic over-activation of the flexor tendons severely alters your foot’s natural biomechanics, restricting the normal movement of the plantar fascia and increasing sheer stress on the joints of your forefoot.
3. Overpronation and Arch Collapse
Most flip-flops are completely flat and offer zero arch support. When your foot strikes the ground without structural support, the arch collapses, causing overpronation. This collapse forces the ankle and tibia to rotate internally. This internal rotation shifts your body weight directly onto the medial side of the forefoot, placing a massive dynamic overload on the first MTP joint with every single step.

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Fulya Mahallesi Yeşil Çimen Sok. Polat Towerside Fulya Doktorlar Merkezi No:12/407 Şişli/Istanbul
Tesvikiye
34394

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