Medically reviewed by Dr. Tom Biernacki, DPM
Board-certified podiatric surgeon | Balance Foot & Ankle, Howell & Bloomfield Township, MI
Last reviewed: May 2026
Most patients underestimate how much the post-operative phase determines Spring Ligament : Guide outcomes — not the surgery itself. Our podiatric surgeons identify the single recovery variable that separates patients who return to full activity on schedule from those who experience setbacks. Call (810) 206-1402 — expert podiatric care across Michigan.
The spring ligament complex (plantar calcaneonavicular ligament) is the primary static restraint of the medial longitudinal arch. Attenuation or rupture — almost always in association with posterior tibial tendon dysfunction — produces progressive adult-acquired flatfoot deformity. Reconstruction is indicated when the spring ligament is incompetent and medial column stability cannot be restored with osteotomy alone.
Spring Ligament Components and Tear Classification
| Component | Attachment | Function | MRI Appearance When Torn |
|---|---|---|---|
| Superomedial calcaneonavicular (SMCN) | Sustentaculum tali to navicular dorsomedial | Supports talar head; main arch restraint | Thickened, heterogeneous, or absent signal |
| Inferoplantar longitudinal (IPCN) | Coronoid fossa of calcaneus to navicular beak | Secondary arch support | Discontinuous fibers; fluid gap |
| Third component (medioplantar oblique) | Calcaneus to navicular | Arch stabilization | Less commonly visualized on MRI |
Reconstruction Options and Evidence
| Technique | Graft/Material | Indication | Outcome Data |
|---|---|---|---|
| Direct repair + augmentation | FiberTape InternalBrace over native repair | Partial tear; reasonable tissue quality | 85-90% satisfaction at 2 years in small series |
| Autograft reconstruction | Posterior tibial tendon slip or FHL graft | Complete tear; attritional tissue | Good arch height restoration; donor site morbidity |
| Allograft reconstruction | Tibialis anterior or peroneus longus allograft | Complete tear; no suitable autograft | Similar outcomes to autograft; no donor morbidity |
| Reconstruction with osteotomy | Any above + calcaneal/Cotton osteotomy | PTTD Stage II with medial column collapse | Best outcomes when bony alignment corrected simultaneously |
Recovery Timeline
Spring ligament reconstruction is performed in combination with other flatfoot procedures (medializing calcaneal osteotomy, FDL transfer) in most cases. NWB in a cast for 6 weeks, then CAM boot with progressive weight-bearing weeks 6-12. Custom orthotics worn full-time starting at 3 months. Return to full activity at 9-12 months. Isolated reconstruction without osteotomy has slightly shorter recovery but is used less commonly because bony realignment is usually required to unload the reconstructed ligament.
At Balance Foot & Ankle in Howell and Bloomfield Township, we evaluate spring ligament integrity with weight-bearing radiographs and MRI as part of comprehensive flatfoot assessment. Call (810) 206-1402.
PubMed: Spring Ligament Complex — Anatomy and Pathology
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Doctor Answer
What is spring ligament reconstruction and when is it needed?
The spring ligament (plantar calcaneonavicular ligament) is the primary static stabilizer of the medial longitudinal arch, and its failure is central to adult acquired flatfoot. Reconstruction involves repairing or augmenting the ligament using local tissue or allograft, typically as part of comprehensive flatfoot reconstruction. I include spring ligament repair when there is evidence of ligament attenuation or rupture on MRI, as failure to address it leads to earlier flatfoot recurrence after reconstruction.
Dr. Tom Biernacki, DPM is a board-certified foot & ankle surgeon (ABFAS & ABPM) 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 made him one of the most-followed foot & ankle educators on YouTube.