Outcomes of partial and total calcanectomies for the treatment of diabetic heel ulcers complicated with osteomyelitis. A systematic review and meta-analysis

BackgroundInfected diabetic foot ulcers (DFU) complicated with calcaneal osteomyelitis are a real challenge for limb preservation. Very few alternatives to amputation are available, mainly the resection of a part or the totality of the calcaneal bone. Calcanectomies were advanced as limb-sparing procedures in patients with heel osteomyelitis. However, there is a lack of pooled quantitative evidence on their efficacy and complications.ObjectivesThe present systematic review and meta-analysis was conducted to determine the primary outcome of healing rates following partial (PC) and total calcanectomies (TC) in treating calcaneal osteomyelitis due to diabetic heel ulcers. Additionally, secondary outcomes such as secondary TC following PC, secondary below knee amputation (BKA), mortality and the change in the ambulation status were analyzed.MethodsMedline, Scopus, Web of science, Cochrane Library and Google Scholar were searched since inception. All types of study design were included. Single case report studies and studies reporting osteomyelitis due to other etiologies than DFU were excluded.ResultsTwenty studies met the inclusion criteria comprising 295 patients with 300 calcanectomies (270 PC and 30 TC). With a mean follow-up period of 29.3 ± 17.7 months, the weighted results were as follows: a) the osteomyelitis healing rate was of 80% (95% CI = 0.728 to 0.861, I² = 48.3%), b) the rate of secondary total calcanectomy was of 5.4% (95% CI = 0.022 to 0.097, I² = 7.5%), c) the rate of secondary BKA was of 17.1% (95% CI = 0.111 to 0.241, I² = 50.6%) with no difference between subgroups of TC and PC, and d) the combined mortality rate of both calcanectomies was of 13.4% (95% CI = 0.064 to 0.224, I² = 73.6%); however, significant higher mortality was found following TC compared to PC (p < 0.0001).ConclusionPartial and total calcanectomies were found to yield very good healing rates with acceptable complication frequencies. When compared to the reported outcomes of below and above-knee amputations in the literature, calcanectomies could be fairly considered as good alternatives to above ankle amputations.     

Calcanectomy: Avoiding major amputation in the presence of calcaneal osteomyelitis—A case series

BackgroundCalcaneal osteomyelitis is a surgical diagnosis that may be treated by local, resection or major amputation.ObjectiveTo determine the effectiveness of calcanectomy for treating calcaneal osteomyelitis.MethodWe conducted a retrospective review of patients receiving calcanectomy between 1st April 2005 and 1st October 2011 for calcaneal osteomyelitis. We reviewed these cases to determine healing, rate, microbiological analysis, length of stay, limb salvage rate and survival rate.ResultsThere were 10 patients included in this review. There were 7 with diabetes and 3 without.Mean age of group with diabetes was 64 years, of this group 5/7 healed at a mean of 64 days. Mean length of stay for this group was 49.3 ± 39.4 days. 2 patients required a transtibial amputation. Mean age of group without diabetes was 77 years, healing at a mean of 19 days. Mean length of stay for this group was 14 ± 16.8 days and all survived over 3 years. Microbiological analysis of suspected osteomyelitic bone typically isolated >4 organisms.ConclusionsCalcanectomy is a useful procedure for limb salvage. It may reduce morbidity rates for people with calcaneal osteomyelitis, those with diabetes can expect prolonged wound healing and longer length of stay.     

A review of the surgical management of heel pressure ulcers in the 21st century

Heel ulceration, most frequently the result of prolonged pressure because of patient immobility, can range from the trivial to the life threatening. Whilst the vast majority of heel pressure ulcers (PUs) are superficial and involve the skin (stages I and II) or underlying fat (stage III), between 10% and 20% will involve deeper tissues, either muscle, tendon or bone (stage IV). These stage IV heel PUs represent a major health and economic burden and can be difficult to treat. The worst outcomes are seen in those with large ulcers, compromised peripheral arterial supply, osteomyelitis and associated comorbidities. Whilst the mainstay of management of stage I‐III heel pressure ulceration centres on offloading and appropriate wound care, successful healing in stage IV PUs is often only possible with surgical intervention. Such intervention includes simple debridement, partial or total calcanectomy, arterial revascularisation in the context of coexisting peripheral vascular disease or using free tissue flaps. Amputation may be required for failed surgical intervention, or as a definitive first‐line procedure in certain high‐risk or poor prognosis patient groups. This review provides an overview of heel PUs, alongside a comprehensive literature review detailing the surgical interventions available when managing such patients.