BOFAS Abstracts Archive

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Categories: Abstracts, 2017, Podium

'The Myerson ‘Rollmop’ Interpositional Arthroplasty a Novel Surgical Technique for Severe Freiberg’s Disease: Medium-term functional outcomes, return to fashion footwear and sports'

W. Abdul, B. Hickey, A. Perera

1University Hospital of Wales, Department of Trauma & Orthopaedic Surgery, Cardiff, United Kingdom 

 

Introdcution: Freiberg's Infraction; osteonecrosis of the metatarsal head, is the fourth most common intra-articular osteonecrosis in the body. Surgical intervention is usually reserved for late stage of the disease process (III-V) or failure of conservative management. We evaluated the outcomes of patients treated with primary Interpositional Arthroplasty technique using periosteum and fat for adequate surfacing and as a spacer for Freiberg's Disease.

Methods: Twenty-three cases (21 patients) were performed from February 2009 - March 2016 (18 women, 5 men). Mean age at surgery was 51.1 years (range 19 - 70.5 years) with 91% affecting the second metatarsal. Twenty-one cases were primary and two cases were revision. Five cases were stage III, 10 were in stage IV and 8 were stage V. All patients underwent Interpositional Arthroplasty using periosteum and fat graft from affected metatarsal inserted as joint spacer and secured with sutures. Patients were followed up by postal questionnaires using two validated questionnaires; MOXFQ and AOFAS. Mean follow-up was 3.7 years (0.6 - 7.6 years). Paired two-tailed student t tests were used to assess clinical significance.

Results: The left and right foot was affected in 12 and 11 cases respectively. There were no postoperative infections, non-unions or transfer metatarsalgia. Surgery allowed 8 patients to wear normal footwear, 9 wearing fashion shoes, 5 wearing dress shoes and 5 patients returned to sporting activities.Mean pre-operative and post-operative VAS pain scores were 6.7 (range 4-10) and 3.2 (range 0-10) (p< 0.05). Mean peri-operative AOFAS scores were 43.8 (range 14-73) and 71.3 (range 10-100) (p< 0.05). Mean peri-operative MOXFQ scores were 62.9 (range 23-89) and 31.8 (range 0-98) (p< 0.05).

Conclusions: We recommend our novel Interpositional Arthroplasty using periosteum and fat spacer for late stage Freiberg's disease as it can result in significant improvement in pain, prevents donor site morbidity and produces significant functional improvement and patient satisfaction.

 

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