Background: The purpose of this retrospective audit was to compare patient based clinical outcomes to amputation healing outcomes twelve months after a minor foot amputation in people with diabetes.
Methods: Hospital admission and community outpatient data were extracted for all minor foot amputations in people with diabetes in 2017 in the Central Coast Local Health District.
Results: A total 85 minor foot amputations involving 74 people were identified. At the twelve-month follow-up 74% (n=56) of the minor foot amputations healed, 63% (n=41) of the participants achieved a good clinical outcome (healed, no more proximal amputations, or death within the 12 month follow up period), and the mortality rate was 18%. Poor clinical outcomes were associated with those aged greater than 60 (RR 5.75, 95% CI: 0.85 to 38.7, p=0.013), those undergoing a further surgical debridement procedure during their hospital stay (RR 2.42, 95% CI: 1.3 to 4.4, p=0.005) and those who did not attend CCLHD Podiatry clinics post-amputation (RR 2.3, 95% CI: 1.2 to 4.1, p=0.010).
Conclusions: To improve patient based clinical outcomes post-minor foot amputation, targeted follow-up in a high-risk foot clinic, and tailored discharge treatment plans for people aged over 60 or those undergoing a debridement procedure may be considered.
Background: The objective of this investigation was to evaluate adverse short-term outcomes following partial forefoot amputation with a specific comparison performed based on subject height.
Methods: The American College of Surgeons National Surgical Quality Improvement Program database was analyzed to select those subjects with a 28805 CPT code (amputation, foot; transmetatarsal) that underwent the procedure with “all layers of incision (deep and superficial) fully closed.” This resulted in 11 subjects with a height ≤60 inches, 202 subjects with a height >60 inches and <72 inches, and 55 subjects ≥72 inches.
Results: Results of the primary outcome measures found no significant differences between groups with respect to the development of a superficial surgical site infection (0.0% vs. 6.4% vs. 5.5%; p=0.669), deep incisional infection (9.1% vs. 3.5% vs. 10.9%; p=0.076), or wound disruption (0.0% vs. 5.4% vs. 5.5%; p=0.730). Additionally, no significant differences were observed between groups with respect to unplanned reoperations (9.1% vs. 16.8% vs. 12.7%; p=0.0630) or unplanned hospital readmissions (45.5% vs. 23.3% vs. 20.0%; p=0.190).
Conclusions: The results of this investigation demonstrate no difference in short-term adverse outcomes following the performance of partial forefoot amputation with primary closure based on subject height. Although height has previously been described as a potential risk factor in the development of lower extremity pathogenesis, this finding was not observed in this study from a large US database.
We reviewed the hospital course of 77 diabetic and 69 nondiabetic subjects who had incision, drainage, and exploration of infected puncture wounds of the foot. Diabetics were 5 times more likely to have multiple operations and 46 times more likely to have a lower extremity amputation than nondiabetics. The interval from injury to surgery was significantly longer in diabetics than nondiabetics. Total lymphocyte count and hemoglobin, hematocrit, and albumin values were significantly lower in diabetics than in nondiabetics. Diabetic amputees had higher prevalences of nonpalpable pulses, nephropathy, neuropathy, and osteomyelitia as compared with diabetic nonamputees. The neuropathic diabetic foot is not protected by pain. When combined with other comorbid factors, this may increase morbidity associated with puncture wounds of the foot.
High plantar pressures contribute to skin breakdown in patients with diabetes mellitus and peripheral neuropathy. The primary purpose of this study was to determine the point during the stance phase of walking that corresponds with forefoot peak plantar pressures. Results indicate that peak plantar pressures occurred at 80% +/- 5% of the stance phase of gait in subjects with diabetes and transmetatarsal amputation, as well as in control subjects. Improved methods of footwear design or walking strategies proposed to patients should focus on the demands of the foot during the late stance phase of walking in order to increase available weightbearing area or to decrease forces, which will minimize plantar pressures and reduce trauma to the neuropathic foot.
Reconstruction of large bone defects of the metatarsals, whether resulting from trauma, infection, or a neoplastic process, can be especially challenging when attempting to maintain an anatomical parabola and basic biomechanical stability of the forefoot. We present the case of a 42-year-old man with no significant medical history who presented to the emergency department following a severe lawnmower injury to the left forefoot resulting in a large degloving type injury along the medial aspect of the left first ray extending to the level of the medial malleolus. The patient underwent emergent debridement with application of antibiotic bone cement, external fixation, and a negative-pressure dressing. He was subsequently treated with split-thickness skin graft and iliac crest tricortical autograft using a locking plate construct for reconstruction of the distal first ray. Although the patient failed to advance to radiographic osseous union, clinically there was no motion at the attempted fusion site and no pain with ambulation, suggestive of a pseudoarthrosis. The patient has since progressed to full nonpainful weightbearing in regular shoes and has returned to normal activities of daily living. The patient returned to his preinjury level of work and has had complete resolution of all wounds including his split-thickness skin graft donor site. This case shows the potential efficacy of the Masquelet technique for spanning significant traumatic bone defects of the metatarsals involving complete loss of the metatarsophalangeal joint.