Ankle Ligament Reconstruction Brostrom 2026 | DPM

The Brostrom procedure is the gold standard surgical repair for chronic lateral ankle instability -- it directly repairs the stretched or torn anterior talofibular ligament (ATFL) and calcaneofibular ligament (CFL) by imbrication (shortening and reattaching the ligament tissue to the fibula), restoring the anatomical lateral ankle ligament complex. Why lateral ankle instability develops: the ATFL and CFL are the primary lateral ankle stabilizers; they are most commonly injured in inversion ankle sprains; when sprains recur or the initial sprain is severe, the ligaments heal elongated (stretched) rather than at their original length and tension; an elongated ATFL cannot provide normal restraint against inversion and anterior drawer of the talus; the result is chronic lateral ankle instability -- repeated ankle sprains, a sensation of the ankle giving way, difficulty on uneven terrain, and pain with activity; Who needs the Brostrom procedure: the diagnosis of chronic lateral ankle instability requires: positive anterior drawer and talar tilt tests on examination; stress X-ray confirmation of excessive talar translation or tilt; failed conservative management: 3-6 months of ankle strengthening, proprioception training, and functional bracing; the appropriate patient: a patient with anatomically normal peroneal tendons (functioning dynamic stabilizers), adequate ligament tissue quality for repair, and a normally aligned hindfoot; modifications: the Gould modification: the inferior extensor retinaculum is advanced to reinforce the repair; this is added in virtually all modern Brostrom procedures and improves the repair strength; the Brostrom-Gould is the current standard.

Brostrom procedure recovery is structured around the biology of ligament healing -- the repaired ATFL must scar in and mature before progressive loading, which takes 8-12 weeks; full recovery to sports takes 4-6 months. Week 0-2: splint immobilization; non-weight-bearing; elevation for swelling; wound care; Week 2-6: transition to a walking boot; protected weight-bearing begins at 2-3 weeks; range of motion exercises start at 2 weeks (plantarflexion and dorsiflexion within the boot); the repaired ligament is not stressed in eversion/inversion at this stage; Week 6-8: progressive weight-bearing without a boot; physical therapy begins: peroneal strengthening, proprioception training on balance boards; the ankle is protected from aggressive inversion loading; Week 8-12: running in a straight line begins; progressive strengthening; the ligament repair has matured enough to tolerate controlled stress; Month 3-4: cutting and change-of-direction activities; sport-specific drills; return to practice (non-contact); Month 4-6: return to full competition; contact sports return after the surgeon confirms adequate strength and stability; driving: right foot -- minimum 6-8 weeks; work: desk work 2-4 weeks (crutches); standing work 8-12 weeks; physical labor 4-6 months; arthroscopic assistance: many surgeons perform ankle arthroscopy at the same time as the Brostrom to address intraarticular pathology (osteochondral defects, loose bodies, synovitis) found in a significant percentage of patients with chronic instability; this adds minimal recovery time but improves overall outcomes.

The Brostrom (anatomic repair) and tendon graft reconstruction (non-anatomic or anatomic augmentation) represent two different philosophies for addressing lateral ankle instability -- the choice depends on the quality of the remaining ligament tissue and patient-specific factors. The Brostrom anatomic repair: uses the patient's own existing ATFL and CFL tissue; the stretched, attenuated ligaments are shortened and imbricated back to the fibula; preserves the native anatomy and normal proprioceptive fibers within the ATFL; appropriate when: adequate quality ligament tissue remains (the ligament is stretched but not absent); this is the majority of patients with chronic lateral instability; outcomes: excellent -- 85-90% good-to-excellent results at 10-year follow-up; non-anatomic tendon graft reconstruction (the Chrisman-Snook, Watson-Jones procedures): a portion of the peroneus brevis tendon is rerouted to reconstruct the ATFL and/or CFL; these procedures sacrifice peroneus brevis function and alter hindfoot biomechanics; largely abandoned in favor of anatomic reconstruction; anatomic ligament reconstruction with graft augmentation: when Brostrom repair is not possible (insufficient tissue, revision surgery, body weight, hyperlaxity syndromes like Ehlers-Danlos), a collagen allograft or autograft is used to reconstruct the ATFL and CFL in their anatomic positions; suture tape augmentation (the InternalBrace): a synthetic ligament augment (FiberTape) is placed alongside the repaired ATFL from the fibula to the talus to protect the repair during healing; allows earlier return to weight-bearing; appropriate for heavier patients, revision cases, or high-demand athletes needing faster return to sport; the revision setting: patients who have failed a prior Brostrom repair, have significant ligament hyperlaxity, or have very poor tissue quality should receive augmented or full graft reconstruction rather than repeat anatomic repair.

Yes -- the majority of patients with chronic lateral ankle instability are successfully managed without surgery; surgical reconstruction is reserved for those who have genuinely failed an adequate trial of conservative treatment. Conservative management that works: peroneal strengthening: the peroneal muscles (peroneus longus and brevis) are the dynamic lateral ankle stabilizers; when the static ligament stabilizers are stretched, strong peroneals compensate; progressive resistance exercise for the peroneals substantially reduces instability episodes; proprioception training: after ligament injury, the mechanoreceptors within the ATFL that sense joint position are damaged; proprioception training (balance board work, single-leg stance, unstable surface training) retrains the neuromuscular system to protect the ankle despite the stretched ligament; functional ankle bracing: a lace-up or semi-rigid ankle brace worn during sport prevents the ankle from reaching the extreme inversion positions that cause giving-way episodes; bracing allows continued sport participation while strengthening occurs; patient education: taping, bracing, and footwear modification prevent recurrent sprains during the rehabilitation period; activity modification: avoiding extremely uneven terrain during the strengthening phase; a realistic success rate: 60-70% of patients with chronic instability achieve satisfactory function without surgery when rehabilitation is rigorous and sustained; who fails conservative management: patients who have not achieved adequate peroneal strength and proprioception despite 3-6 months of supervised rehabilitation; patients with associated intraarticular pathology (OCD, loose bodies) that cannot be managed without arthroscopy; patients with very high activity demands (elite athletes, military personnel); patients with significant hindfoot varus deformity that places structural stress on the lateral ankle with every step.