PTTD Stage II: Medializing Calcaneal Osteotomy, Flexor Digit relates to tendon injury — typically caused by overuse or sudden strain. Most patients improve in 6-12 weeks with conservative care. Same-week appointments in Howell + Bloomfield Twp: (810) 206-1402.
Medically reviewed by Dr. Tom Biernacki, DPM — Board-certified foot & ankle surgeon, 3,000+ surgeries performed. Updated April 2026 with current clinical evidence. This article reflects real practice experience from Balance Foot & Ankle Specialists in Howell and Bloomfield Hills, Michigan.
Quick Answer
Most foot and ankle problems respond to conservative care — proper footwear, supportive inserts, activity modification, and targeted stretching — within 4-8 weeks. Persistent pain beyond that window, or any symptom that prevents walking, warrants a podiatric evaluation to rule out fracture, tendon tear, or systemic cause.
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Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.
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Medically Reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatrist, Balance Foot & Ankle Specialists, Michigan. Last updated April 2026.
Stage II posterior tibial tendon dysfunction (PTTD) — flexible adult-acquired flatfoot deformity with partial or complete posterior tibial tendon insufficiency — represents the most common surgical stage of PTTD and requires a combined reconstructive approach that addresses all three components of the deformity: the failed PTT (tendon transfer), the collapsed medial column (calcaneal osteotomy ± lateral column lengthening), and the attenuated spring ligament complex (repair or augmentation). Single-procedure approaches addressing only one component have significantly higher failure rates than appropriately planned combined reconstructions.
Surgical Planning and Indications
Stage II PTTD criteria: flexible hindfoot valgus (reducible to neutral with manual correction); absence of fixed subtalar or midfoot arthritis (Stage III — rigid deformity — requires arthrodesis); failure of 3–6 months of conservative care (UCBL orthotic, physical therapy, ankle boot immobilization). Preoperative assessment: weight-bearing AP and lateral foot X-rays — talonavicular coverage angle (>30° indicates subluxation requiring correction), calcaneal pitch (height of the medial arch), first metatarsal-talus alignment; hindfoot alignment view; MRI confirms PTT pathology grade and spring ligament integrity. FDL transfer indication: Grade 2–3 PTT tear (>50% cross-section) with tendon elongation — transfer of FDL replaces the PTT function as the primary dynamic supinator of the hindfoot.
Surgical Technique and Outcomes
Medializing calcaneal osteotomy (MCO): oblique osteotomy of the calcaneal body with medial translation of the posterior fragment 8–10mm — restores Achilles tendon line of action medially, reduces hindfoot valgus, and unloads the spring ligament; most important component of the reconstruction. FDL transfer: harvest of FDL at the knot of Henry (medial plantar arch), transfer through a drill hole in the navicular or into the PTT stump — replaces the active hindfoot supination function lost with PTT failure. Spring ligament repair/imbrication: direct suture repair or augmentation of the superomedial calcaneonavicular ligament — the primary static restraint to talonavicular uncoverage. Lateral column lengthening (Evans osteotomy): added for severe talonavicular uncoverage (>40%) — opening wedge osteotomy of the calcaneus at the anterior process with bone graft insertion. Outcomes: 85–90% patient satisfaction at 5 years; significant improvement in AOFAS hindfoot scores; long-term deformity correction maintained in 85–90% at 10 years. Dr. Biernacki at Balance Foot & Ankle performs PTTD Stage II reconstruction including FDL transfer and medializing calcaneal osteotomy at our Bloomfield Hills and Howell locations. Call (810) 206-1402 for evaluation.
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class=”mfd-patient-scenario” id=”in-our-clinic”>In Our Clinic: What We See
Clinical perspective from Dr. Tom Biernacki, DPM — Balance Foot & Ankle, Howell & Bloomfield Hills, MI:
In our clinic, adult acquired flatfoot from PTTD typically presents in women over 40, often with recent weight gain or a period of increased standing. They describe medial ankle pain and progressive “collapse” of the arch on one side. The gold-standard exam finding is an inability to perform a single-leg heel-rise on the affected side — the tendon can no longer invert the heel into a rigid lever. Early PTTD is staged and treated with custom orthoses and bracing, but progressive disease (Stage III-IV) typically requires surgical reconstruction to prevent rigid deformity.
class=”mfd-differential” id=”differential-diagnosis”>Differential Diagnosis: What Else Could It Be?
Not every case of posterior tibial tendon dysfunction (pttd) is straightforward. In our clinic we routinely rule out three look-alike conditions before confirming the diagnosis. If your symptoms don’t match the classic presentation, one of these may explain the pain — which is why physical exam matters more than self-diagnosis.
Condition
How It Differs
Congenital flat foot
Lifelong, usually bilateral, no pain, normal single-leg heel-rise test.
class=”wp-block-heading mfd-treatment-bridge” id=”in-office-treatment”>In-Office Treatment at Balance Foot & Ankle
If home care isn’t resolving your your foot or ankle concern, a visit with a board-certified podiatrist is the fastest path to accurate diagnosis and a personalized plan. At Balance Foot & Ankle Specialists, Dr. Tom Biernacki, Dr. Carl Jay, and Dr. Daria Gutkin offer same-day and next-day appointments at both our Howell and Bloomfield Hills offices. We perform on-site diagnostic ultrasound, digital X-ray, conservative care, advanced regenerative treatments, and minimally invasive surgery when indicated.
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When to See a Podiatrist
Foot and ankle surgery in 2026 is dramatically different than a decade ago — most procedures are now minimally-invasive, outpatient, and allow weight-bearing within days. Balance Foot & Ankle surgeons have performed 3,000+ foot/ankle surgeries with modern techniques. If another surgeon has recommended a traditional open procedure, a second opinion may reveal a faster, less-invasive option.
No — many people with flat feet have no pain at all. Pain develops when flat feet lead to excessive pronation that stresses tendons, ligaments, and joints. Risk factors for developing pain include obesity, prolonged standing, high-impact activities, and aging.
Can flat feet be corrected?
In children, arch development can sometimes be supported. In adults, the arch cannot be rebuilt without surgery, but custom orthotics, physical therapy, and appropriate footwear can effectively control symptoms and prevent progression.
What is the treatment for adult flatfoot deformity?
Early stages respond well to custom orthotics, physical therapy, and supportive footwear. Advanced cases with Achilles tightness may benefit from stretching and bracing. Severe cases — especially stage III-IV posterior tibial tendon dysfunction — may require reconstruction surgery.
Need Treatment at Balance Foot & Ankle?
Dr. Tom Biernacki, Dr. Carl Jay, and Dr. Daria Gutkin see patients at our Howell and Bloomfield Township offices.
Balance Foot & Ankle performs medializing calcaneal osteotomy with FDL tendon transfer for Stage II posterior tibial tendon dysfunction. Our surgeons restore arch support and ankle alignment.
The most common mistake we see is: Waiting too long before seeking care. Fix: any foot pain lasting more than 4 weeks, or any sudden severe symptom, deserves a professional evaluation rather than more rest.
Warning Signs That Need Same-Day Care
Seek immediate evaluation at Balance Foot & Ankle if you experience any of the following:
Dr. Tom Biernacki, DPM · Board-Certified Foot & Ankle Surgeon. Specializes in conservative-first care, minimally invasive bunion surgery, and complex reconstruction.
Dr. Carl Jay, DPM · Accepting new patients. Specializes in sports medicine, athletic injuries, and routine podiatric care.
Dr. Daria Gutkin, DPM, AACFAS · Accepting new patients. Specializes in surgical reconstruction and pediatric podiatry.
Locations: 4330 E Grand River Ave, Howell, MI 48843 · 43494 Woodward Ave Suite 208, Bloomfield Twp, MI 48302
Dr. Tom Biernacki, DPM is a double board-certified podiatrist and foot & ankle surgeon at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has reached over one million views.
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This article has been reviewed for medical accuracy by Dr. Tom Biernacki, DPM. References are provided for informational purposes.
Balance Foot & Ankle surgeons are affiliated with Trinity Health Michigan, Corewell Health, and Henry Ford Health — three of Michigan’s largest health systems.
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