No abstract available.
Neurofibromatoses* ; Pseudarthrosis* ; Ulna*

Humans ; Joint Diseases ; Ulna

One of the points made against nailing in radius and ulna shaft fractures has been the loss of radial bow and its impact on function. The aims of the study were to assess the change in magnitude and location of the radial bow in radius and ulna shaft fractures treated with intramedullary square nails and to assess the impact of this change on functional outcome, patient reported disability and the range of motion of the forearm. We measured the magnitude of radial bow and its location in the operated extremity and compared it to the uninjured side in 32 adult patients treated with intramedullary square nailing for radius and ulna shaft fractures at our institute. The mean loss of magnitude of maximum radial bow was 2.18 mm which was statistically significant by both student-T test and Mann-Whitney U test with p value less than 0.01. The location of maximum radial bow shifted distally but was statistically insignificant. The magnitude of maximum radial bow had a negative correlation with DASH score that was statistically insignificant (R=- 0.22, p=0.21). It had a positive, statistically significant correlation to the extent of supination in the operated extremity (R = 0.66, p = 0.0004). A loss of up to 2mm of radial bow did not influence the functional outcome as assessed by criteria reported by Anderson et al. The magnitude of radial bow influenced the supination of the forearm but not the final disability as measured by DASH score. Intramedullary nailing did decrease the magnitude of radial bow but a reduction of up to 2mm did not influence the functional outcome.
Ulna Fractures ; Radius Fractures

Defect of the radius should be managed with either fusion of radius and ulna forming “one-bone forearm”, or restoration of its continuity by bone graft. Reported hereia are two cases in which the radius developed defect following sequestrectomy and treatment of open infected fructure respectively. Reconstruction of the radius was tried with bone graft; utilizing the ulnar end resected from the same side in one case and fibula in other. Both Sowed sound bony union of the graft about four months postoperatively.
Fibula ; Radius ; Transplants ; Ulna

No abstract available.
Olecranon Process* ; Ulna*

From Oct. 1974 to Jun. 1979, 47 diaphyseal fractures of the forearm bones in 36 patients were treated with compression plates. Among them 36 diaphyseal fractures in 28 patients (23 with acute fractures. and 5 with non-union) followed for average 8.3 months from three months to thirty seven months were studied. 19 fractures of the radius and 17 fractures of the ulna were treated with compression plates. Fifteen fractures which were delayed for operation for more than 3 weeks or had severe comminution, had primary iliac bone grafts. The fracture unlon of the radius and ulna was obtained in all cases and average healing time for the radius was 11.9 weeks and for the ulna was 12.3 weeks. The final functional results were excellent, 16 and satisfactory,7. The over all rates of excellent and satisfactory results were 82.2 percent. Therefore compression plate is one of the excellent methods to treat diaphyseal fractures and non-union of the forearm bone.
Forearm ; Humans ; Radius ; Transplants ; Ulna

This study investigated the anatomy of the nutrient foramen (NF) in German Shepherds by recording the number, site, position, and direction of penetration of the nutrient canal (NC) in the humerus, radius, and ulna of 50 individuals. The site index of the nutrient foramen (SI) was calculated as the ratio of the length to the NF site from the proximal end to the greatest length of the bone. The NF diameter was measured using different sized needles. Most humeri had only one NF on the caudal surface, particularly on the lateral supracondylar crest, or distal cranial surface. All radii had one NF, usually on the caudal surface, while most ulnae had one NF located on either the cranial or lateral surfaces. The SI and NF diameters were 58.0~59.5% and 0.73~0.78 mm in the humerus, 30.4~30.9% and 0.74~0.76 mm in the radius, and 29.3~29.8% and 0.67~0.68 mm in the ulna, respectively. With the exception of the relatively proximal NF of the radius, the direction of penetration followed Berard's rule. This study provides novel information on the location and diameter of the NF and direction of the NC in the long bones of the pectoral limb of German Shepherds.
Extremities* ; Haversian System ; Humerus ; Needles ; Radius ; Ulna

This study investigated the anatomy of the nutrient foramen (NF) in German Shepherds by recording the number, site, position, and direction of penetration of the nutrient canal (NC) in the humerus, radius, and ulna of 50 individuals. The site index of the nutrient foramen (SI) was calculated as the ratio of the length to the NF site from the proximal end to the greatest length of the bone. The NF diameter was measured using different sized needles. Most humeri had only one NF on the caudal surface, particularly on the lateral supracondylar crest, or distal cranial surface. All radii had one NF, usually on the caudal surface, while most ulnae had one NF located on either the cranial or lateral surfaces. The SI and NF diameters were 58.0~59.5% and 0.73~0.78 mm in the humerus, 30.4~30.9% and 0.74~0.76 mm in the radius, and 29.3~29.8% and 0.67~0.68 mm in the ulna, respectively. With the exception of the relatively proximal NF of the radius, the direction of penetration followed Berard's rule. This study provides novel information on the location and diameter of the NF and direction of the NC in the long bones of the pectoral limb of German Shepherds.
Extremities* ; Haversian System ; Humerus ; Needles ; Radius ; Ulna

PURPOSE: To evaluate the clinical results of Acutrak screw fixation for ulnar olecranon fractures. MATERIALS AND METHODS: We reviewed 15 cases of ulnar olecranon fractures which were treated with Acutrak screws from February 2003 to September 2007. Follow-up period is from 12 months to 42 months. We used Mayo classification. Radiologic results were analyzed according to step-off, gap, reduction loss, and functional results were analyzed according to pain and ROM. We analyzed union time, operation time, incision size and complications. RESULTS: In functional results, there were 3 good cases out of 3 Mayo type IA, 8 good cases and 2 fair cases out of 10 type IIA, 1 fair case and 1 poor case out of 2 type IIB. In radiologic results, there was 1 case of reduction loss. Average union time was 9.4 weeks, average operation time was 24 minutes and average incision size was 1.8 cm. CONCLUSION: We conclude that Acutrak screw fixation can be a treatment option for olecranon fracture of Mayo type IA and IIA.
Follow-Up Studies ; Olecranon Process ; Ulna

PURPOSE: To compare the functional results between the plate fixation and Rush pin insertion for the treatment of diaphyseal fractures of the forearm both bones. MATERIALS AND METHODS: We reviewed 51 patients who were treated for diaphyseal fractures of the both forearm bones from 1995 to 2003, and evaluated them with Anderson's method. Eighteen patients were treated with plate fixation of both bones (group I), 14 patients treated with of the Rush pin insertion of the radius and plate fixation of the ulna (group II), 11 patients treated with plate fixation of the radius and Rush pin insertion of the ulna (group III), and 8 patients treated with Rush pin insertion of forearm both bones (group IV). RESULTS: Seventeen out of eighteen cases obtained favorable result (94.4%) in group I, 12 out of 14 cases (85.7%) in group II, 7 out of 11 cases (63.3%) in group III, and 4 out of 8 cases (50.0%) in group IV with statistically significant differences between the groups (p=0.04). CONCLUSION: Plate fixation of forearm both bones yield the best result. Thus, plate fixation of both forearm bones is recommended in treating the diaphyseal fractures of both forearm bones. At least one bone is recommended to be fixed with a plate if it is not possible to fix both forearm bones with plates.
Forearm* ; Fracture Fixation, Intramedullary* ; Humans ; Radius ; Ulna