Healthcare Utilization Following Hemipelvectomy or Hip Disarticulation in the Military Health System.

INTRODUCTION: Amputations at the hip and pelvic level are often performed secondary to high-energy trauma or pelvic neoplasms and are frequently associated with a prolonged postoperative rehabilitation course that involves a multitude of health care providers. The purpose of this study was to examine the health care utilization of patients with hip- and pelvic-level amputations that received care in the U.S. Military Health System. MATERIALS AND METHODS: We performed a retrospective review of all patients who underwent a hip- or pelvic-level amputation in the Military Health System between 2001 and 2017. We compiled and reviewed all inpatient and outpatient encounters during three time points: (1) 3 months pre-amputation to 1 day pre-amputation, (2) the day of amputation through 12 months post-amputation, and (3) 13-24 months post-amputation. Health care utilization was defined as the average number of encounter days/admissions for each patient. Concomitant diagnoses following amputation including post-traumatic stress disorder, traumatic brain injury, anxiety, depression, and chronic pain were also recorded. RESULTS: A total of 106 individuals with hip- and pelvic-level amputations were analyzed (69 unilateral hip disarticulation, 6 bilateral hip disarticulations, 27 unilateral hemipelvectomy, 2 bilateral hemipelvectomies, and 2 patients with a hemipelvectomy and contralateral hip disarticulation). Combat trauma contributed to 61.3% (n = 65) of all amputations. During the time period of 3 months pre-amputation, patients had an average of 3.8 encounter days. Following amputation, health care utilization increased in both the year following amputation and the time period of 13-24 months post-amputation, averaging 170.8 and 77.4 encounter days, respectively. Patients with trauma-related amputations averaged more total encounter days compared to patients with disease-related amputations in the time period of 12 months following amputation (203.8 vs.106.7, P < .001) and the time period of 13-24 months post-amputation (92.0 vs. 49.0, P = .005). PTSD (P = .02) and traumatic brain injuries (P < .001) were more common following combat-related amputations. CONCLUSIONS: This study highlights the increased health care resource demand following hip- and pelvic-level amputations in a military population, particularly for those patients who sustained combat-related trauma. Additionally, patients with combat-related amputations had significantly higher rates of concomitant PTSD and traumatic brain injury. Understanding the extensive needs of this unique patient population helps inform providers and policymakers on the requirements for providing high-quality care to combat casualties.

Heterotopic Ossification Formation in Military Beneficiaries Following Hip- and Pelvic-Level Amputations.

INTRODUCTION: Traumatic hip and pelvic level amputations are uncommon but devastating injuries and associated with numerous complications that can significantly affect quality of life for these patients. While heterotopic ossification (HO) formation has been reported at rates of up to 90% following traumatic, combat-related amputations, previous studies included few patients with more proximal hip and pelvic level amputations. MATERIALS AND METHODS: We conducted a retrospective review of the Military Health System medical record and identified patients with both traumatic and disease-related hip- and pelvic-level amputations performed between 2001 and 2017. We reviewed the most recent pelvis radiograph at least 3 months following amputation to determine bony resection level and the association between HO formation and reason for amputation (trauma versus disease related). RESULTS: Of 93 patients with post-amputation pelvis radiographs available, 66% (n = 61) had hip-level amputations and 34% (n = 32) had a hemipelvectomy. The median duration from the initial injury or surgery to the most recent radiograph was 393 days (interquartile range, 73-1,094). HO occurred in 75% of patients. Amputation secondary to trauma was a significant predictor of HO formation (χ2 = 24.58; P < .0001); however, there was no apparent relationship between the severity of HO and traumatic versus non-traumatic etiology (χ2 = 2.92; P = .09). CONCLUSIONS: Amputations at the hip were more common than pelvic-level amputations in this study population, and three-fourths of hip- and pelvic-level amputation patients had radiographic evidence of HO. The rate of HO formation following blast injuries and other trauma was significantly higher compared with patients with non-traumatic amputations.

Unsuccessful Osteochondral Allograft Cap to Prevent Overgrowth in a Pediatric Patient with Previous Transtibial Amputation: A Case Report.

CASE: This case demonstrates the attempted utilization of an osteochondral allograft for the prevention of bony overgrowth in a patient with fibular hemimelia and previous transtibial amputation with failure of Teflon capping. Additionally, we describe a novel technique to provide additional padding and increase the width of the residual limb using a dermal allograft. CONCLUSIONS: Bony overgrowth after pediatric amputations is common and often necessitates revision procedures secondary to infection, ulceration, pain, and discomfort with prosthesis use. Our use of an osteochondral allograft cap to prevent bony overgrowth ultimately failed 13 months following the procedure, and further research on various graft options and other treatment modalities is warranted, especially if the proximal fibula is unavailable or there is concern for donor site morbidity associated with harvesting autologous grafts.

Transtibial Amputation With Fibulectomy and Fibular Collateral Ligament-Biceps Reconstruction: Surgical Technique and Clinical Experience.

OBJECTIVES: To describe our clinical experience and surgical technique of transtibial amputation with fibulectomy and fibular collateral ligament-biceps reconstruction for management of, particularly short, transtibial amputations with proximal fibula prominence, overt instability, or inadequate soft-tissue coverage. DESIGN: Retrospective review. SETTING: Level II trauma center. PATIENTS: Twelve consecutive patients who underwent transtibial amputation with fibulectomy and fibular collateral ligament-biceps reconstruction between 2008 and 2021. INTERVENTION: We reviewed patient medical records, radiographs, and clinical photographs. MAIN OUTCOME MEASUREMENTS: Complications, instability, and pain. RESULTS: Eight patients underwent acute transtibial amputation with fibulectomy and reconstruction, whereas 4 patients underwent amputation revision with fibulectomy and reconstruction for chronic pain. All 12 patients were men, with a median age of 39 years (interquartile range, 33-46). All injuries were due to high-energy mechanisms, including improvised explosive device (n = 8), rocket-propelled grenade (n = 2), gunshot wound (n = 1), and motor vehicle accident (n = 1). After a median follow-up of 8.5 years (interquartile range, 3.4-9.3), there was one complication, a postoperative suture abscess. No patients had subjective lateral knee instability after the procedure, and the average pain scores decreased from 4.75 to 1.54 ( P = 0.01). All patients returned to regular prosthesis wear and maintained independent functioning with activities of daily living. CONCLUSIONS: Our experience with fibulectomy and fibular collateral ligament-biceps reconstruction demonstrated no subjective or clinical postoperative instability and may be a useful adjunct for managing transtibial amputations with fibular instability or prominence, pain, or skin breakdown at the fibular head. LEVEL OF EVIDENCE: Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Current and emerging prostheses for partial hand amputation: A narrative review.

Partial hand amputation can have a tremendous range of impact and functional loss on a person's life. One solution to improve function and address some of the problems that partial hand amputees face is to fit them with a prosthesis. Partial hand prosthetic devices range in a wide spectrum in both function and aesthetics. At this time, there is no one, perfect prosthetic device that can replace what is lost. Many individuals with partial hand amputation require more than one prosthetic device. In this review article, we explored and compared several prosthetic options that have been investigated and marketed by researchers and companies. Some of these options include passive, body-powered, activity-specific, and externally-powered prostheses. Lastly, we described our experiences with partial hand prostheses at Walter Reed National Military Medical Center.

Hyperhidrosis of the residual limb: a narrative review of the measurement and treatment of excess perspiration affecting individuals with amputation.

BACKGROUND: Hyperhidrosis (HH) is a relatively common disorder involving excessive sweating, typically of the palms or axilla. HH can also frequently occur after limb amputation, where the remaining residual limb excessively perspires, leading to an increased risk of dermatological disorders and functional limitations, such as the inability to comfortably or safely wear a prosthesis. Although many treatments have been proposed to treat HH within the dermatology community, they are not widely known by healthcare providers typically involved in caring for individuals with acquired limb loss. OBJECTIVES: To appraise the current state of quantitative and qualitative assessment of HH within the residual limb and examine existing and future treatment strategies for this problem. STUDY DESIGN: Narrative Literature Review. METHODS: A literature review focused on the assessment and treatment of excessive sweating of residual limbs. RESULTS: There is currently no objective or subjective standard to assess or diagnose HH of the residual limb. Conventional therapies for HH do not always translate to the population of individuals with limb loss. Emerging modalities for treating HH show promise toward a permanent resolution of excess perspiration but require additional studies within people with amputation. CONCLUSIONS: Further research is needed to quantify standard values to objectively and subjectively assess and diagnose hyperhidrosis of the residual limb. New and developing treatments for hyperhidrosis require additional studies to assess efficacy and safety in the residual limb.

COVID-19: A catalyst for change in virtual health care utilization for persons with limb loss.

The dramatic uptake of virtual care, or telehealth, utilization because of COVID-19 restrictions for persons with limb loss has led to a much greater understanding of this health care delivery method for this complex patient population. However, much is still unknown. Therefore, the authors provide a comprehensive literature review of existing evidence for virtual care delivery across the phases of amputation rehabilitation, as well as anecdotal evidence, to provide a platform for further discussion and development of research and innovative opportunities. Evidence reveals that virtual care serves as a complement to in-person health care for individuals with limb loss because it allows for increased accessibility to these services. The authors conclude that continued use of telehealth beyond the COVID-19 restrictions to optimize outcomes across the continuum of care for persons with limb loss is warranted.

A Posterolateral Approach to the Scapula for Evacuation of a Subscapular Abscess: A Case Report.

CASE: We present the case of a subscapular abscess that was drained via a posterolateral approach to the scapula. Complete evacuation of the abscess was achieved, and the incisions healed without difficulty. There were no immediate postoperative complications from this approach. CONCLUSION: To our knowledge, a posterolateral approach for evacuating a subscapular abscess has not been described previously in the literature. Utilizing the internervous plane between the teres major and latissimus dorsi muscles, along with medial counterincisions, allows for safe drainage of this rare type of abscess.

Preoperative state anxiety, acute postoperative pain, and analgesic use in persons undergoing lower limb amputation.

OBJECTIVES: The current study examined the relationship between preoperative anxiety and acute postoperative phantom limb pain (PLP), residual limb pain (RLP), and analgesic medication use in a sample of persons undergoing lower limb amputation. MATERIALS AND METHODS: Participants included 69 adults admitted to a large level 1 trauma hospital for lower limb amputation. Participants' average pain and anxiety during the previous week were assessed before amputation surgery. RLP, PLP, and analgesic medication use were measured on each of the 5 days following amputation surgery. RESULTS: Results of partial-order correlations indicated that greater preoperative anxiety was significantly associated with greater ratings of average PLP for each of the 5 days following amputation surgery, after controlling for preoperative pain ratings and daily postoperative analgesic medication use. Partial correlation values ranged from 0.30 to 0.62, indicating medium to large effects. Preoperative anxiety was also significantly associated with ratings of average RLP only on postoperative day 1, after controlling for preoperative pain ratings and daily postoperative analgesic medication use (r=0.34, P<0.05). Correlations between preoperative anxiety and daily postoperative analgesic medication dose became nonsignificant when controlling for preamputation and postamputation pain ratings. DISCUSSION: These findings suggest that anxiety may be a risk factor for acute postamputation PLP and RLP, and indicate that further research to examine these associations is warranted. If replicated, the findings would support research to examine the extent to which modifying preoperative anxiety yields a reduction in postoperative acute PLP and RLP.

Traction Neurectomy for Treatment of Painful Residual Limb Neuroma in Lower Extremity Amputees.

OBJECTIVES: To describe the outcomes of traction neurectomy as a surgical treatment for symptomatic neuroma of the residual lower extremity and to identify clinical and/or demographic factors associated with an increased likelihood of persistent or recurrent pain after surgery. DESIGN: Retrospective Cohort Study. SETTING: Amputee clinic at a Level I Trauma Center. PATIENTS: Inclusion required a history of transfemoral or transtibial amputation and a history of symptomatic neuroma(s) at the residual limb treated with traction neurectomy. Twelve months of clinical follow-up or the recurrence of neuroma-type pains was required for inclusion. Thirty-eight patients (63 nerves) comprised the study group. INTERVENTION: Traction neurectomy for treatment of symptomatic neuroma. MAIN OUTCOME MEASURES: The primary outcome was the presence or absence of persistent or recurrent neuroma-type pain at last follow-up. The secondary outcome was reoperation for persistent or recurrent symptomatic neuroma. RESULTS: Sixteen of 38 patients (42%) had recurrent or persistent neuroma-type pain at a mean follow-up of 37 months (range, 11-91 months), and 8/38 (21%) have undergone subsequent surgical treatment. Among the demographic and clinical features examined, only male gender was found to be a statistically significant predictor of persistent or recurrent neuroma-type pain. CONCLUSIONS: Traction neurectomy results in a high rate of persistent or recurrent neuroma-type and that surgeons should be cautious when considering it for the treatment of symptomatic neuroma of the residual lower extremity. Furthermore, efforts to identify better surgical and nonsurgical treatments for this problem are justified. LEVEL OF EVIDENCE: Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Does targeted nerve implantation reduce neuroma pain in amputees?

BACKGROUND: Symptomatic neuroma occurs in 13% to 32% of amputees, causing pain and limiting or preventing the use of prosthetic devices. Targeted nerve implantation (TNI) is a procedure that seeks to prevent or treat neuroma-related pain in amputees by implanting the proximal amputated nerve stump onto a surgically denervated portion of a nearby muscle at a secondary motor point so that regenerating axons might arborize into the intramuscular motor nerve branches rather than form a neuroma. However, the efficacy of this approach has not been demonstrated. QUESTIONS/PURPOSES: We asked: Does TNI (1) prevent primary neuroma-related pain in the setting of acute traumatic amputation and (2) reduce established neuroma pain in upper- and lower-extremity amputees? METHODS: We retrospectively reviewed two groups of patients treated by one surgeon: (1) 12 patients who underwent primary TNI for neuroma prevention at the time of acute amputation and (2) 23 patients with established neuromas who underwent neuroma excision with secondary TNI. The primary outcome was the presence or absence of palpation-induced neuroma pain at last followup, based on a review of medical records. The patients presented here represent 71% of those who underwent primary TNI (12 of 17) and 79% of those who underwent neuroma excision with secondary TNI (23 of 29 patients) during the period in question; the others were lost to followup. Minimum followup was 8 months (mean, 22 months; range, 8-60 months) for the primary TNI group and 4 months (mean, 22 months; range, 4-72 months) for the secondary TNI group. RESULTS: At last followup, 11 of 12 patients (92%) after primary TNI and 20 of 23 patients (87%) after secondary TNI were free of palpation-induced neuroma pain. CONCLUSIONS: TNI performed either primarily at the time of acute amputation or secondarily for the treatment of established symptomatic neuroma is associated with a low frequency of neuroma-related pain. By providing a distal target for regenerating axons, TNI may offer an effective strategy for the prevention and treatment of neuroma pain in amputees.

Bilateral transfemoral/transtibial amputations due to battle injuries: a comparison of Vietnam veterans with Iraq and Afghanistan servicemembers.

BACKGROUND: Multiple limb loss from combat injuries has increased as a proportion of all combat-wounded amputees. Bilateral lower-extremity limb loss is the most common, with bilateral transfemoral amputations being the most common subgroup followed by bilateral amputations consisting of a single transfemoral amputation and a single transtibial amputation (TFTT). With improvements in rehabilitation and prostheses, we believe it is important to ascertain how TFTT amputees from the present conflicts compare to those from the Vietnam War. QUESTIONS/PURPOSES: We compared self-reported (1) health status, (2) quality of life (QoL), (3) prosthetic use, and (4) function level between TFTT amputees from the Vietnam War and Operation Iraqi Freedom/Operation Enduring Freedom (OIF/OEF). METHODS: As part of a larger survey, during 2007 to 2008, servicemembers with a diagnosis of amputation associated with battlefield injuries from the Vietnam War and OIF/OEF were identified from the Veterans Affairs and military databases. Participants were asked to respond to a questionnaire to determine their injuries, surgical history, presence of other medical problems, health status, QoL, function, and prosthetic use. We assessed QoL and health status using single-item questions and function using seven categories of physical activity. Thirteen of 298 (4.3%) participants in the Vietnam War group and 11 of 283 (3.8%) in the OIF/OEF group had sustained TFTT amputations. Mean age ± SD at followup was 61 ± 2 years and 28 ± 5 years for the Vietnam War and OIF/OEF groups, respectively. RESULTS: Excellent, very good, and good self-reported health (85% versus 82%; p = 0.85) and QoL (69% versus 72%; p = 0.85) were similar between the Vietnam War and OIF/OEF groups, respectively. Level of function was higher in the OIF/OEF group, with four of 11 reporting participation in high-impact activities compared to none in the Vietnam War group (p = 0.018). CONCLUSIONS: Participants with TFTT limb loss from both conflicts reported similar scores for QoL and health status, although those from OIF/OEF reported better function and use of prosthetic devices. It is unclear whether the improved function is from age-related changes or improvements in rehabilitation and prosthetics. Some areas of future research might include longitudinal studies of those with limb loss and assessments of physical function of older individuals with limb loss as the demographics shift to where this group of individuals becomes more prominent.

Robotic leg control with EMG decoding in an amputee with nerve transfers.

The clinical application of robotic technology to powered prosthetic knees and ankles is limited by the lack of a robust control strategy. We found that the use of electromyographic (EMG) signals from natively innervated and surgically reinnervated residual thigh muscles in a patient who had undergone knee amputation improved control of a robotic leg prosthesis. EMG signals were decoded with a pattern-recognition algorithm and combined with data from sensors on the prosthesis to interpret the patient's intended movements. This provided robust and intuitive control of ambulation--with seamless transitions between walking on level ground, stairs, and ramps--and of the ability to reposition the leg while the patient was seated.

Combat-incurred bilateral transfemoral limb loss: a comparison of the Vietnam War to the wars in Afghanistan and Iraq.

BACKGROUND: This study is a comparison of the self-reported health status, quality of life, function, and prosthetic use of veterans with bilateral transfemoral limb loss following combat injury in either the Vietnam War or the recent conflicts in Afghanistan and Iraq, to learn what improvements in surgery, prosthetics, and rehabilitation have occurred. METHODS: Subjects were identified from Veteran's Administration and military databases. A cross-sectional survey was conducted of service members with bilateral transfemoral amputation who participated in a larger survey of service members with any type of amputation associated with a battlefield injury from the Vietnam War or Operation Iraqi Freedom/Operation Enduring Freedom (OIF/OEF). The survey was conducted by mail, telephone, or Web site during 2007 to 2008. RESULTS: There were 501 subjects in the Vietnam group and 541 in the OIF/OEF group with any type of limb loss. Bilateral transfemoral amputation was reported in 23 (7.7%) of 298 of the Vietnam group and 10 (3.5%) of 283 of the OIF/OEF group (χ test, p = 0.04). Self-reported health status was rated as good to excellent in 40% of the Vietnam group and 80% in the OIF/OEF group (p = 0.04). Quality of life was rated as good to excellent in 54.6% of the Vietnam group and 70% of the OIF/OEF group (not significant). Wheelchair use is reported by 22 of 23 subjects in the Vietnam group and all of the subjects of the OIF/OEF group. Of the Vietnam group, 8 (34.7%) of 23 currently use prostheses versus 7 (70%) of 10 of the OIF/OEF group (χ test, p = 0.13). The mean (SD) number of prostheses currently used is 1.0 (1.9) for the Vietnam group and 4.0 (5.2) for the OIF/OEF group (p = 0.022). CONCLUSION: Participants who served in OIF/OEF and those who served in Vietnam report comparable quality of life. Prosthetic use continues to be a problem, especially as the service member ages. LEVEL OF EVIDENCE: Epidemiologic study, level III.

Servicemembers and veterans with major traumatic limb loss from Vietnam war and OIF/OEF conflicts: survey methods, participants, and summary findings.

Care of veterans and servicemembers with major traumatic limb loss from combat theaters is one of the highest priorities of the Department of Veteran Affairs. We achieved a 62% response rate in our Survey for Prosthetic Use from 298 Vietnam war veterans and 283 servicemembers/veterans from Operation Iraqi Freedom/Operation Enduring Freedom (OIF/OEF) who sustained major traumatic limb loss. Participants reported their combat injuries; health status; quality of life; and prosthetic device use, function, rejection, and satisfaction. Despite the serious injuries experienced, health status was rated excellent, very good, or good by 70.7% of Vietnam war and 85.5% of OIF/OEF survey participants. However, many health issues persist for Vietnam war and OIF/OEF survey participants (respectively): phantom limb pain (72.2%/76.0%), chronic back pain (36.2%/42.1%), residual-limb pain (48.3%/62.9%), prosthesis-related skin problems (51.0%/58.0%), hearing loss (47.0%/47.0%), traumatic brain injury (3.4%/33.9%), depression (24.5%/24.0%), and posttraumatic stress disorder (37.6%/58.7%). Prosthetic devices are currently used by 78.2% of Vietnam war and 90.5% of OIF/OEF survey participants to improve function and mobility. On average, the annual rate for prosthetic device receipt is 10.7-fold higher for OIF/OEF than for Vietnam war survey participants. Findings from this cross-conflict survey identify many strengths in prosthetic rehabilitation for those with limb loss and several areas for future attention.

Unilateral lower-limb loss: prosthetic device use and functional outcomes in servicemembers from Vietnam war and OIF/OEF conflicts.

Rehabilitation goals following major combat-associated limb loss in World War II and the Vietnam war focused on treatment of the injury and a return to civilian life. The goal for Operation Iraqi Freedom/Operation Enduring Freedom (OIF/OEF) servicemembers is to restore function to the greatest possible degree and, if they desire, return them to Active Duty, by providing them with extensive rehabilitation services and a variety of prosthetic devices. Our study determines the usefulness of these diverse types of prosthetic devices for restoring functional capability and documents prosthesis use and satisfaction. We compare servicemembers and veterans with major combat-associated unilateral lower-limb loss: 178 from the Vietnam war and 172 from OIF/OEF conflicts. Of survey participants with unilateral lower-limb loss, 84% of the Vietnam group and 94% of the OIF/OEF group currently use at least one prosthetic device. Reasons for rejection varied by type of device, but common reasons were pain, prosthesis too heavy, and poor fit. Abandonment is infrequent (11% Vietnam group, 4% OIF/OEF group). Future efforts should aim to improve prosthetic-device design, decrease pain, and improve quality of life for these veterans and servicemembers.