OBJECTIVE: To explore the feasibility of using biomechanical indicators as supplementary evaluation to the Musculoskeletal Tumor Society Scoring System (MSTS) for amputee patients. METHODS: Twenty-four patients who underwent hemipelvectomy between September 2018 and January 2025 were enrolled. There were 15 males and 9 females with an average age of 61.4 years (range, 45-76 years). Participants performed gait tests at self-selected speeds using three assistive devices (prosthesis, single crutch, and double crutches). Motion data were analyzed using a customized OpenSim model. Biomechanical indicators of the intact limb exhibiting common characteristics were screened through correlation and sensitivity analyses. Test-retest reliability [interclass correlation coefficient (ICC)] of selected parameters was assessed to evaluate their potential as MSTS score supplements. RESULTS: All biomechanical indicators showed significant positive correlations with MSTS scores across assistive devices ( P<0.05). Seven indicators demonstrated |Pearson correlation coefficients|>0.8, including walking speed, maximum hip angle, maximum hip moment, peak hip flexion moment, peak hip extension moment, hip flexion impulse, and hip extension impulse. Among these, maximum hip moment, hip flexion impulse, and hip extension impulse exhibited significant between-group differences in adjacent MSTS levels ( P<0.05), indicating high sensitivity, along with excellent test-retest reliability (ICC>0.74, P<0.01). CONCLUSION Biomechanical indicators statistically qualify as potential supplements to MSTS scoring. Maximum hip moment, hip flexion impulse, and hip extension impulse demonstrate particularly high sensitivity to MSTS score variations.
Humans ; Male ; Middle Aged ; Female ; Aged ; Biomechanical Phenomena ; Amputees/rehabilitation* ; Feasibility Studies ; Artificial Limbs ; Reproducibility of Results ; Amputation, Surgical ; Crutches ; Gait

Arthritis of hip joints deteriorates the quality of life in ankylosing spondylitis (AS) patients. Secondary to the articular inflammatory process, the shortened hip-girdle muscles contribute to the decreased joint mobility which may lead to the functional impairment. As the limitation of range of motion (ROM) usually progress slowly, clinicians regard it as a chronic condition and prescribe long-term therapy. However, by short-term intensive multimodal treatment, a 20-year-old man diagnosed as AS with severely limited hip joint ROM who relied on crutches doubled the joint angle and could walk independently only within 2 weeks. The combination included intra-articular steroid injection, electrical twitch obtaining intramuscular stimulation, extracorporeal shock wave therapy, heat, manual therapy, and stretching exercises. The management focused on the relaxation of hip-girdle muscles as well as the direct control of intra-articular inflammation. Hereby, we emphasize the effectiveness of intensive multimodal treatment in improving the function even within a short period.
Arthritis ; Combined Modality Therapy ; Crutches ; Exercise ; Hip Joint ; Hip ; Hot Temperature ; Humans ; Inflammation ; Joints ; Muscle Relaxation ; Muscles ; Musculoskeletal Manipulations ; Quality of Life ; Range of Motion, Articular ; Relaxation ; Shock ; Spondylitis, Ankylosing ; Young Adult

BACKGROUND: Rehabilitation and overuse of the shoulder after rotator cuff repair are a concern in patients with comorbid disability in other extremities. Improvement of outcomes can be hampered in this situation. This study was to describe the clinical outcomes of rotator cuff repair in patients with comorbid disability in other extremities. METHODS: In two tertiary institutions, 16 patients with comorbid disability (9 men and 7 women; mean age of 57.1 years [range, 45 to 71 years]; 14 dominant arms; mean follow-up of 18 months [range, 12 to 38 months]) underwent rotator cuff repair. There were 5 massive tears, 1 large tear, 9 medium tears, and 1 small tear. Open repair was performed in 3 patients and arthroscopic repair in 13. The most common comorbid condition was paralysis (n = 7). Eight patients walked with crutches preoperatively. Anatomical outcome was investigated in 12 patients using either magnetic resonance imaging or ultrasonography at least 6 months postoperatively. RESULTS: Range of motion, visual analogue scale for pain and satisfaction, and all functional scores improved significantly. Healing failure occurred in 4 patients (2 large-to-massive and 2 medium size tears), but none required revision surgery. All 4 retears involved the dominant side, and 3 patients were crutch users. CONCLUSIONS: The current data suggested favorable outcome of rotator cuff repair in patients with comorbid disability. Careful surgical planning and rehabilitation is particularly important for crutch users and in the case of dominant arm involvement in disabled patients.
Arm ; Crutches ; Extremities* ; Female ; Follow-Up Studies ; Humans ; Magnetic Resonance Imaging ; Male ; Paralysis ; Range of Motion, Articular ; Rehabilitation ; Rotator Cuff* ; Shoulder ; Tears ; Treatment Outcome ; Ultrasonography

STUDY DESIGN: Prospective physical measurement of the sagittal vertical axis (SVA). PURPOSE: To evaluate a simple method for measuring SVA by analyzing its relationship with radiographic measurements and clinical appearance. OVERVIEW OF LITERATURE: No studies have examined physical measurements using the cranial center of gravity (CCG) in a relaxed standing position. METHODS: The physical measurement of the horizontal distance between CCG and spina iliaca posterior superior (CCG-SIPS) was measured using a straight ruler in 252 healthy volunteers and 56 patients with adult spinal deformity. Health-related quality of life (HRQOL) was evaluated using the Oswestry disability index (ODI), and clinical symptoms were assessed according to standing status and the presence of gastroesophageal reflux disease (GERD). RESULTS: CCG-SIPS increased with age in the volunteer group and strongly correlated with radiographic SVA in the patient group (r=0.984). Differences increased between CCG-SIPS in patients in the relaxed position and radiographic SVA with an increase in sagittal malalignment (r=0.692, p<0.001). ODI with high sagittal malalignment (CCG-SIPS>120 mm) was significantly larger in the patient group than in the group with low sagittal malalignment (59.9±18.8 vs. 45.1±17.0; p=0.004); these patients (CCG-SIPS>120 mm) needed crutches or walkers for standing. The patient group with GERD had significantly larger sagittal malalignment than the group without GERD (160.3 mm vs. 81.0 mm). CONCLUSIONS: The CCG-SIPS correlated with age and strongly reflected radiographic SVA and HRQOL in the patients. Moreover, it reflects a relaxed posture without a backward shift in the radiographic position even in patients with severe sagittal malalignment. The critical limit of CCG-SIPS can be relevant to clinical appearance, including standing assistance (>120 mm) and the existence of GERD (>150 mm). Thus, it will be a useful predictor of true SVA in clinical practice before radiographic evaluation.
Adult* ; Congenital Abnormalities* ; Crutches ; Gastroesophageal Reflux ; Gravitation ; Healthy Volunteers ; Humans ; Methods ; Posture ; Prospective Studies ; Quality of Life ; Volunteers ; Walkers

PURPOSE: To evaluate the radiological and clinical effects of early eightbearing after distal reverse oblique osteotomy of bunionette. MATERIALS AND METHODS: Between 2009 and 2015, 52 patients who underwent surgical treatment at our hospital for bunionette deformity with a minimum follow up of one year were included in the study. Postoperatively, foot cast was applied and full weightbearing was permitted in 28 patients. And short leg splint was applied with only partial weightbearing using crutches allowed in 24 patients. Clinical scores were evaluated. Radiologically, the 4th~5th intermetatarsal angle (IMA), and 5th metatarsophalangeal angle (MPA) were analyzed preoperatively and at the final follow up visit. RESULTS: The visual analogue scale and American Orthopaedic Foot and Ankle Society scores improved in the partial weightbearing group and full weightbearing group, but without significant differences. The average 4th~5th IMA and average 5th MPA correction also did not showed significant differences between the partial weightbearing group and full weightbearing group. Moreover, the full weightbearing group did not encourage non-union rate compared with the partial weightbearing group. CONCLUSION: Effective bone union may be achieved through early weightbearing, resulting in better clinical outcomes. It is considered that early weightbearing did not have any effect on the changes of IMA and bone union.
Ankle ; Bunion, Tailor's* ; Congenital Abnormalities* ; Crutches ; Follow-Up Studies ; Foot ; Humans ; Leg ; Osteotomy* ; Splints ; Weight-Bearing*

PURPOSE: This study was to determine the efficacy of iliac crest reconstruction using bone cement in reducing pain and morbidity at the donor site in patients undergoing open wedge high tibial osteotomy (OWHTO) with tricortical iliac crest autologous graft. MATERIALS AND METHODS: Thirty-three patients who underwent iliac crest reconstruction using polymethyl methacrylate (PMMA) bone cement (group A) and thirty patients who had no iliac crest reconstruction (group B) were enrolled in this study. All patients were evaluated for pain and functional disability related to graft harvesting using the pain and functional visual analogue scale (VAS) score during hospital stay and at 6 weeks, 3 months, and 6 months postoperatively. RESULTS: There was significant difference between the two groups in terms of pain and function. The pain VAS score was significantly lower in group A than group B during the first 2 weeks postoperatively (p=0.04) and the functional VAS score was also significantly lower in group A during the first 2 weeks postoperatively (p<0.001) in terms of breathing, sitting up from the supine position, and standing up with crutches from the sitting position. CONCLUSIONS: Iliac crest donor site reconstruction using PMMA bone cement in patients undergoing OWHTO significantly decreased pain and improved function during the first 2 weeks postoperatively when compared to patients who underwent OWHTO without iliac crest reconstruction.
Bone Transplantation ; Crutches ; Humans ; Length of Stay ; Osteotomy ; Polymethyl Methacrylate ; Prospective Studies ; Respiration ; Supine Position ; Tibia ; Tissue Donors ; Transplants

PURPOSE: People with dementia have poor mobility and discharge outcomes following hip fractures. The purpose of this study was to evaluate the clinical and radiological results of internal fixation of undisplaced femur neck fractures (Garden types 1 and 2) by proximal femoral nail antirotation (PFNA) in dementia patients. MATERIALS AND METHODS: We studied retrospectively 19 patients with undisplaced femur neck fracture. All patients were over 70 years of age, walked independently with a cane or crutches and suffered moderate-to-severe dementia. Patients were treated with PFNA and followed-up for more than 2 years. Revision, loss of fixation, complications, and walking ability outcomes were measured. RESULTS: In walking-ability evaluation, patients showed an average decrease of just 0.2 points at the final follow-up. Walking ability was evaluated from before injury to 4 weeks after surgery and decreased by less than 0.5 points. Radiological bone union was achieved in 17 cases; the average time to bone union was 4.14 months (range, 2.5-7 months). Complications included non-union in two cases and femoral head avascular necrosis in one case of non-union. CONCLUSION: We found that for patients with osteoporotic bone tissues in their femoral heads or patients (e.g., those suffering dementia) for whom cooperating with medical workers for postoperative walking control or rehabilitation exercises is difficult, implanting a mechanically stable spiral blade for fixation of femoral neck fractures could facilitate walking after surgery.
Bone and Bones ; Canes ; Crutches ; Dementia* ; Exercise ; Femoral Neck Fractures* ; Femur Neck* ; Femur* ; Follow-Up Studies ; Head ; Hip Fractures ; Humans ; Necrosis ; Rehabilitation ; Retrospective Studies ; Walking

STUDY DESIGN: A case report. OBJECTIVES: To report the case of a patient whose preoperative imaging results seemed to show metastatic spine tumor but who actually had a vertebral pathologic fracture caused by spine tuberculosis. SUMMARY OF LITERATURE REVIEW: Tuberculosis spondylitis is classified into peridiscal, central, anterior, and posterior spondylitis according to the portion involved, and central spondylitis can be mistaken as a tumor. MATERIALS AND METHODS: Imaging studies were performed in a 79-year-old female with progressive lower extremity weakness. We found a T12 pathologic vertebral fracture, which was suspected to be metastatic cancer. RESULTS: We performed surgery and found spine tuberculosis in the pathological and immunological examinations. Two weeks postoperatively, the patient could walk with crutches and underwent anti-tuberculosis therapy. CONCLUSIONS: Even when the results of imaging studies predict spinal metastasis, we should keep in mind the possibility of spinal tuberculosis.
Aged ; Crutches ; Decompression ; Female ; Fractures, Spontaneous ; Humans ; Lower Extremity ; Neoplasm Metastasis ; Spine ; Spondylitis ; Tuberculosis ; Tuberculosis, Spinal*

It is easy to overlook osteochondral lesions (OCLs) of the ankle in patients with chronic lower limb pain, such as complex regional pain syndrome (CRPS) or thromboangiitis obliterans (TAO, Buerger's disease). A 57-year-old woman diagnosed with type 1 CRPS, and a 58-year-old man, diagnosed with TAO, complained of tactile and cold allodynia in their lower legs. After neurolytic lumbar sympathethic ganglion block and titration of medications for neuropathic pain, each subject could walk without the aid of crutches. However, they both complained of constant pain on the left ankle during walking. Focal tenderness was noted; subsequent imaging studies revealed OCLs of her talus and his distal tibia, respectively. Immediately after percutaneous osteoplasties, the patients could walk without ankle pain. It is important to consider the presence of a hidden OCL in chronic pain patients that develop weight-bearing pain and complain of localized tenderness on the ankle.
Animals ; Ankle ; Cementoplasty ; Chronic Pain ; Cold Temperature ; Crutches ; Female ; Ganglion Cysts ; Humans ; Hyperalgesia ; Leg ; Lower Extremity ; Neuralgia ; Osteochondritis Dissecans ; Talus ; Thromboangiitis Obliterans ; Tibia ; Troleandomycin ; Walking ; Weight-Bearing

PURPOSE: The purpose of this study is to evaluate the outcome after operative treatment with plate fixation in Vancouver B1 and C periprosthetic unstable femoral fractures. MATERIALS AND METHODS: We conducted a retrospective assessment of 15 patients who had under gone treatment for a periprosthetic unstable femoral fracture around primary hip arthroplasty between April 1997 and July 2010. The mean age of patients was 69 years(53 to 82 years) at the time of surgery and the mean duration of follow-up was 29.2 months (six to 110 months). According to Vancouver classification, 10 patients were type B1 and five were type C. According to the time of operation, open reduction and internal fixation was performed using four different plates. Bone graft was applied in all patients, regardless of the type of plate. The present review describes the clinical and radiographic results. RESULTS: All patients were able to ambulate without assistance of crutches or walkers. Of the 15 patients, the fracture site was united in all patients. Postoperative dislocation of the ipsilateral hip was observed in one patient; however, there was no occurrence of further complications, such as infections, nerve injuries, or loosening of the femoral stems. CONCLUSION: In Vancouver type B1 and C fractures, without any loosening of the femoral stems, open reduction with plate fixation using our operative methods provided a satisfactory result.
Arthroplasty ; Crutches ; Dislocations ; Femoral Fractures ; Femur ; Follow-Up Studies ; Hip ; Humans ; Periprosthetic Fractures ; Retrospective Studies ; Transplants ; Walkers