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Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_II | Pages 306 - 306
1 May 2009
Gougoulias N Paridis D Bargiotas K Moraitis T Dailiana Z Malizos K
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Foot osteomyelitis is a common problem for which management is variable and few guidelines exist.

To present our treatment protocol and the results in 36 patients (20 men, 16 women, mean age: 49.5 years) with osteomyelitis distal to the ankle, followed up for 17.6 months (range: 3–64).

Bone infection involved toes (n=4), lesser metatarsals (n=11), hallux (n=3), midfoot (n=4), calcaneus (n=9), whereas 4 cases presented as generalised osteomyelitis. Postoperative infection was the cause in 10 cases. Eleven patients were classified as host-type A, 14 as B and 11 as C. A draining sinus was present in 28 cases. The treatment protocol included surgical debridement, the bead-pouch technique for local antibiotic administration and closure primarily (n=27), or by secondary healing (n=5), skin graft (n=2), local fasciocutaneous (n=1), or free vascularised muscle flap (n=1). Systemic antibiotics according to cultures were administered for 5–7 days. Generalized Charcot osteomyelitis was an indication for amputation.

Mean hospital stay was 13.8 days (range 1–34) and 2.7 (range 1–7) surgical procedures per patient were recorded. Infection control was achieved in 26 cases (72.2%), whereas amputations were performed in 10 cases (27.8%). Below-knee amputation was undertaken in 4 host-type C patients with Charcot osteomyelitis of the foot. Ray amputations were performed in 4 diabetic feet. Six amputees were classified as host-C and 3 as host-B. One host-type A patient with recurrent post-traumatic toe osteomyelitis, underwent a distal phalanx amputation as definitive solution. Amputation rates were 55% among host-C, 22% among host-B and 9% among host-A patients (p< 0.001).

Diffuse foot osteomyelitis in systemically compromised patients resulted in high amputation rates. Better results were obtained in non-compromised hosts and focal osteomyelitis.


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_II | Pages 306 - 307
1 May 2009
Gougoulias N Paridis D Karachalios T Varitimidis S Bargiotas K Malizos K
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Distal tibia and ankle sepsis can threaten the viability of the limb. We present the management protocol and results in 37 patients with chronic infection of the distal tibia and ankle, followed up for a mean of 4 years.

The mean age was 45.6 years. Host type A were 21 patients, type B were 9, and type C were 7 patients. Treatment included radical debridement, multiple cultures sampling and local antibiotic application. Twenty seven patients required bone stabilisation, whereas 3 host C patients were amputated. Soft tissue coverage included 5 free muscle flaps, 3 soleus flaps and 5 pedicle fasciocutaneous local flaps. Bone defects of a mean of 6.3 cm (3–13cm) in 20 cases were treated with distraction histogenesis (13 cases) or the free fibula vascularised graft (7 cases).

Mean hospitalisation time was 26.2 days (host-A: 19.6 vs. host B/C: 32.2, p=0.036). Host-A patients required 2.3 operative procedures whereas host-B/C 3.9 (p=0.01). Union occurred in 26/27 (96%) of cases requiring fixation (one ankle arthrodesis revision/host-B patient). External fixation frames were kept in situ for a mean of 31.7 weeks (12–85). Mean leg length discrepancy was 0.6 cm. Ankle arthrodesis was performed in 7 patients (5% among host-A patients vs. 38% among B/C). Independent ambulation was achieved in (35/37) 95%. All patients were satisfied with the result. Bacteriology revealed Staph. aureus in 71%, whereas 38% were polymicrobial (7% in host-A vs. 88% in B/C patients, p< 0.001). Infection recurrence occurred in 5.4% (none in host-A vs. 13% in B/C patients, p=0.03), whereas the overall complication rate was 43% (24% in host-A vs. 75% in B/C patients, p=0.02).

Functional limb salvage without leg length discrepancy was possible in 92% of cases. Systemically compromised patients required longer hospitalisation, more operative procedures, had frequently polymicrobial infections and more complications.


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_I | Pages 130 - 130
1 Mar 2009
GOUGOULIAS N PARIDIS D BARGIOTAS K MORAITIS T DAILIANA Z MALIZOS K
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Introduction: Management strategies and results in 30 cases of foot osteomyelitis are presented.

Patients-Methods: From 1/2003 – 1/2006, 30 patients (15 men, 15 women, mean age 47.7 years, range 1.5–82) presenting with foot osteomyelitis were treated. Mean hospital stay was 12.6 days (range 1–45) and 1.3 hospital admissions were recorded (range 1–4). The follow-up period averaged 15.7 months (range 3–56). Bone infection involved the toes in 3 cases, the metatarsals in 9, the head of the hallux in 2, the midfoot in 3, the calcaneus in 9, whereas 3 cases presented as generalized charcot’s osteomyelitis. Eleven patients were classified as host-type A, 10 as B and 9 as C. Nine patients were diabetic, one rheumatoid, four had vascular insufficiency, two had insensate feet. An open calacaneal fracture was the cause in two cases, whereas ORIF of a closed calacaneal fracture in one, ORIF of metatarsal fractures in one and hallux valgus corrective surgery in two. One paediatric patient with calcaneal osteomyelitis developed subtalar arthritis. A draining sinus/wound was present in 24 cases. Each patient underwent an average of 2.3 surgical procedures (range 1–7). The treatment protocol included surgical debridement, use of the bead-pouch technique for local antibiotic administration and closure primarily (n=23), or by secondary healing (n=3), skin graft (n=2), local fasciocutaneous (n=1), or free vascularized muscle flap (n=1). Systemic antibiotics according to cultures were administered for 5–7 days. Amputation was undertaken if salvaging or reconstructive procedures could not be undertaken.

Results: Infection control (salvageable cases) was achieved in 23 cases (76.7%), whereas amputations were performed in 7 cases (23.3%). Four amputees were classified as host C (57.1%), whereas a significantly lower rate of patients successfully treated (21.7%) were host-C (p=0.0008). A below knee amputation was undertaken in two host-type C patients with generalized osteomyelitis of the foot. One 1st ray and two 1st and 2nd ray amputations were performed for not salvageable diabetic feet infections. Finally in 3 cases of posttraumatic chronic toe osteomyelitis in host-type A patients, a distal phalanx amputation was the definite solution. One patient developed a septic TKR in the contralateral leg and one diabetic patient developed osteomyelitis at a different location in the earlier affected foot.

Conclusions: The treatment strategy of radical debridement, local antibiotic delivery by the bead-pouch technique and use of flaps if needed, successfully treated salvageable feet. Amputation was the solution in neglected cases and in immunocompromised patients.