Midfoot osteoarthritis is a degenerative joint condition affecting the complex articulations of the midfoot, most commonly involving the tarsometatarsal (Lisfranc) joints, the naviculocuneiform joints, and the calcaneocuboid joint. Though less frequently discussed than osteoarthritis of the hip or knee, midfoot osteoarthritis can be profoundly disabling, impairing a patient’s ability to walk, stand, and perform daily activities. Its aetiology is varied — it may arise following trauma such as Lisfranc injuries, develop secondary to inflammatory arthritis, or occur as a primary degenerative process. Management requires a thorough understanding of the anatomy, biomechanics, and the spectrum of treatments available, ranging from conservative measures to surgical reconstruction.
Understanding the Pathology and Presentation
The midfoot functions as a rigid lever during the push-off phase of gait, and any disruption to the integrity of its joints results in pain, deformity, and altered mechanics. Patients with midfoot osteoarthritis typically present with dorsal midfoot pain, localised tenderness over affected joints, stiffness — particularly in the morning or after periods of rest — and swelling. Over time, osteophyte formation on the dorsum of the foot becomes prominent and may cause secondary problems such as shoe-fitting difficulties and skin irritation. Weight-bearing radiographs are the cornerstone of diagnosis, demonstrating joint space narrowing, subchondral sclerosis, cyst formation, and osteophyte development. In cases where plain films are inconclusive, CT scanning provides superior bony detail, while MRI is useful for assessing early cartilage loss and bone marrow oedema.
Conservative Management
The initial approach to midfoot osteoarthritis is invariably non-operative. The goals of conservative treatment are pain reduction, functional improvement, and slowing disease progression. A structured, stepwise approach is recommended, beginning with the simplest interventions before escalating to more complex modalities.
Footwear modification is fundamental. Stiff-soled shoes with a rocker-bottom profile are particularly effective, as they reduce the bending forces transmitted across the midfoot joints during the toe-off phase of gait. A well-cushioned, supportive shoe with adequate width also minimises pressure on dorsal osteophytes and accommodates any swelling or deformity.
Custom orthotics and foot orthoses complement footwear modification. A rigid or semi-rigid custom insole with a medial arch support reduces motion at the affected joints and redistributes plantar pressures. In more severe cases, a carbon fibre footplate or a full-length stiff insert can provide substantial symptomatic relief by effectively immobilising the midfoot during ambulation.
Analgesic and anti-inflammatory pharmacotherapy plays an adjunctive role. Non-steroidal anti-inflammatory drugs (NSAIDs) are commonly prescribed for pain management, though their use must be balanced against gastrointestinal, renal, and cardiovascular risks, particularly in older patients. Topical NSAIDs offer a safer alternative with more localised effect. Paracetamol remains a useful baseline analgesic, and short courses of oral corticosteroids may be considered in inflammatory flares.
Intra-articular corticosteroid injections, typically guided by ultrasound or fluoroscopy to ensure accurate placement, provide targeted relief and can serve both therapeutic and diagnostic purposes. The response to injection is variable; some patients experience substantial improvement lasting weeks to months, while others derive minimal benefit. Viscosupplementation with hyaluronic acid has also been trialled in small cohorts, with some evidence of modest benefit, though its role remains less established than in knee osteoarthritis.
Physiotherapy is an important adjunct, focusing on lower limb strengthening, gait retraining, and proprioceptive exercises. Strengthening the intrinsic foot muscles and the tibialis posterior can improve dynamic arch support and offload arthritic joints. Activity modification — avoiding high-impact activities and prolonged standing — is encouraged alongside weight management, given that obesity significantly increases forces across the midfoot.
Interventional and Surgical Management
When conservative measures fail to provide adequate relief, typically after six to twelve months of optimised non-operative care, surgical intervention is considered. The decision to operate depends on the severity of symptoms, the degree of radiographic involvement, the patient’s functional demands, and the presence of deformity.
For isolated, refractory pain without significant malalignment, minimally invasive or arthroscopic debridement and osteophyte excision (cheilectomy) may offer symptomatic benefit. This is particularly relevant where prominent dorsal osteophytes cause pain or shoe irritation without advanced joint destruction. However, these procedures address symptoms rather than the underlying arthritis and are not suitable in cases of severe joint space loss.
Arthrodesis — surgical fusion of the affected joints — remains the gold standard operative treatment for advanced midfoot osteoarthritis. The aim of fusion is to eliminate pain by abolishing motion at the diseased joints while achieving a plantigrade, functional foot position. The most commonly fused joints include the medial, intermediate, and lateral tarsometatarsal joints, as well as the naviculocuneiform joints where involved. Fusion is typically achieved using a combination of internal fixation — plates, screws, or staples — with autologous bone graft to promote union.
Outcomes following midfoot arthrodesis are generally favourable, with the majority of patients reporting significant pain relief and improved function. Union rates in modern series exceed 90% when meticulous surgical technique is employed. Nonetheless, surgery carries risks including non-union, malunion, wound complications, neurovascular injury, and hardware irritation requiring removal. The development of adjacent joint arthritis following fusion is a recognised long-term concern, as altered biomechanics may accelerate degeneration in surrounding joints.
Total joint replacement of the midfoot has not gained widespread adoption due to the complex anatomy, high mechanical demands, and the limited evidence base supporting implant longevity in this region. Research into midfoot arthroplasty continues, but fusion remains the preferred surgical solution.
Midfoot osteoarthritis is a challenging condition with significant impact on quality of life. Treatment follows a logical progression from conservative measures — footwear modification, orthotics, analgesia, injections, and physiotherapy — to surgical arthrodesis in refractory cases. Accurate diagnosis, patient-specific goal-setting, and a multidisciplinary approach involving orthopaedic or podiatric surgeons, physiotherapists, and allied health professionals are essential to achieving optimal outcomes. As research advances, refinements in surgical technique and the development of new biological therapies may further improve the management of this disabling condition.