The management of delayed union and nonunion of the metacarpals and phalanges

Functional and Radiological Outcomes of Miniature Plate Osteosynthesis in Metacarpal and Phalangeal Fractures of Hand: A Prospective Study

INTRODUCTION

 There are several operative modes to address hand fractures to gain better anatomical and functional results including external fixator, percutaneous K-wire fixation, lag screw fixation, tension band wiring, intra-medullary nails or wires, and plate-screw fixation. We evaluated the results of plate osteosynthesis in fractures of metacarpals and phalanges in a prospective manner.

MATERIAL AND METHODS

 A total 50 adults (19-60 years) of either sex having 58 fractures managed by miniature plate osteosynthesis and followed for a minimum six months (6-19), including metacarpal and phalangeal fractures (unstable or serial fractures), intra-articular fractures, fracture-dislocation of proximal interphalangeal and distal interphalangeal joints with joint incongruity or subluxation were enrolled while contaminated compound fractures, pathological fractures and cases of reimplantation were excluded from study. Clinical assessment was done using the American Society for Surgery of the Hand (ASSH), total active flexion (TAF), total active range of motion (TAM) score, and the Disabilities of the Arm, Shoulder, and Hand (quick DASH) score while sequential radiographs were done at each follow-up.

RESULT

All the fractures had perfect union clinically as well as radiologically with a mean duration of six weeks while functional outcomes in reference to clinical scores were observed excellent and fair in all cases. None of the cases had any loss of reduction, loosening of the implant, or other major complications.

CONCLUSIONS

Miniature plate fixation provides enough stability in metacarpal and phalanges fractures, thereby allowing immediate active movements, which leads to excellent functional outcomes and early return to normal activities.

Trends in the Management of Fifth Metacarpal Neck Fractures

PURPOSE

To describe management trends of fifth metacarpal neck (5MCN) fractures within a large health care system. We aimed to define patient and surgeon factors associated with nonsurgical versus surgical treatment, as well as to identify factors associated with receiving care only in the emergency department (ED).

METHODS

We identified all 5MCN fractures within our system for the years 2012-2020 and recorded baseline demographics for cases. Injury, treatment, and fracture characteristics were all recorded. For fractures treated nonsurgically, we determined the type of immobilization used (if any) and recorded whether patients were seen only in the ED or received subsequent outpatient follow-up. Demographic comparisons were made between groups, and adjusted logistic regression models were generated to predict the odds of having a surgical 5MCN fracture or being seen in the ED only.

RESULTS

There were 611 5MCN fractures over an 8-year period, of which 10% were treated surgically. During the first half of the study period, 8% of isolated cases were treated surgically compared with 7% of cases in the second half. Soft dressings were increasingly used. There were no nonsurgically managed cases that underwent subsequent surgical procedures for symptomatic nonunion or malunion. Twenty-one percent of patients were seen only in the ED. Fracture angulation, associated injuries, insurance status, and treatment by a hand surgeon were all significantly associated with an increased likelihood of surgery.

CONCLUSIONS

Of the 611 5MCN fractures identified, 90% were treated nonsurgically. Patient and surgeon factors were associated with increased odds of surgery. Of patients who sought care for 5MCN injuries, >20% received no follow-up care outside of the ED. These data can be used to assess future changes in management trends and suggest that nonunion and symptomatic malunions are uncommon occurrences.

TYPE OF STUDY/LEVEL OF EVIDENCE

Prognostic IV.

Clinical, Radiologic, and Functional Outcomes following Bone Grafting for Metacarpal Non-Unions: A Systematic Review

Objectives: Metacarpal non-unions are complex hand defects that can lead to severe hand impairment. Treatment may require the use of artificial or autologous bone grafts. This systematic review aims to describe the outcomes of bone grafting following metacarpal non-union in an attempt to establish an optimal therapeutic protocol for this complication. Methods: A systematic review was conducted in adherence with PRISMA guidelines. Data collection and analysis were performed in duplicate and confirmed by a third investigator. Our primary outcomes focused on radiological time to bone fusion and rates of non-union. Additionally, functional outcomes and complications were analyzed as means of central tendency. Results: Eighteen studies were included in the systematic review, accounting for a total of 47 patients. The average follow-up time was 12.4 months. Fourteen studies analyzed radiological outcomes, with atrophic non-union representing the most common type. The time to bone fusion, assessed radiologically, following bone graft was an average of 6.9 months (n = 14), with a 100% rate of union in 42 patients. Regarding patient-reported pain improvement, 76% of patients experienced pain relief. Moreover, all patients reported a complete subjective return to baseline hand function. Adverse events, limited to hematoma and seroma, were seen in three patients, representing a complication rate of 11.8% in the examined population. Conclusions: Metacarpal non-union can be treated successfully via vascularized and non-vascularized bone grafting. Based on the available evidence, bone grafts demonstrate favorable union rates, post-operative pain reduction, hand function recovery, earlier bone fusion times, and minimal complications in the context of metacarpal non-union management.

Metacarpal and Phalangeal Nonunions

The majority of phalangeal and metacarpal fractures will proceed to union when appropriately treated. However, when a nonunion does occur, it can lead to significant functional impairment for patients and societal costs. Operative intervention is typically required in these cases, but the technique can vary depending on each individual patient scenario. This article provides an overview of nonunions of the metacarpals and phalanges in the hand, including incidence, risk factors, current treatment options, and postoperative care.

Risk Factors for Nonunion After Distal Phalangeal Fractures of the Hand

PURPOSE

This study aimed to evaluate the risk factors for distal phalanx fracture nonunion.

METHODS

We retrospectively reviewed all adult patients treated for distal phalanx fractures at our institution between January 2015 and December 2019 with a minimum one-year follow-up period for potential risk factors. The absence of consolidation signs on follow-up radiographs at least 12 months after trauma was defined as nonunion.

RESULTS

This study included 124 patients with 143 fractures available for follow-up. Nonunion was diagnosed in 19 patients, 18 of whom initially presented with an open fracture. On the day of the injury, 17 patients with open fractures presented to the hospital. In 16 nonunion cases, the traumatic mechanism was a crush injury. All nonunions occurred in tuft fractures, and none required revision surgery at the follow-up visit.

CONCLUSIONS

Our findings suggest that tuft involvement in open fractures is the main risk factor for nonunion of distal phalangeal fractures. However, after a minimum of 1 year of follow-up, none of the tuft nonunions required revision surgery.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

Individualized herbal prescriptions for delayed union: A case series

Background Bone fractures are important clinical events for both patients and professionals. Active treatment options are limited for delayed unions and for nonunions; surgery is common but not entirely risk-free. This report describes three cases of delayed union successfully treated with herbal decoction. Participants Three patients had trapezoid and 3rd metacarpal bone fractures, 2nd, and 5th metatarsal bone fractures, respectively. All three patients were diagnosed with delayed union by an independent orthopedic surgeon based on computed tomography (CT) scan/radiographic imaging and fracture duration without a healing process. Patients took herbal decoction, Jeopgol-tang, with individually added herbs based on symptom manifestations, twice daily for 56, 85 and 91 days with no additional interventions except for a splint that they had been wearing since fracture diagnosis. Outcomes Improvement of delayed union was evaluated using radiographic imaging or CT during treatment with Jeopgol-tang. Results After taking herbal medicine, callus and bony bridging were confirmed on follow-up imagings and the patients described their experience with pain reduction at an interview after recovery. Conclusions This case series suggests that the herbal decoction Jeopgol-tang warrants further investigation to establish its role as a complementary and integrative medicine treatment option for delayed unions.

Biophysical Stimulation in Delayed Fracture Healing of Hand Phalanx: A Radiographic Evaluation

Phalangeal fractures are common events among the upper limbs accounting for 10% of all human body fractures. Fracture complete healing process may persevere several months or years. Most phalangeal fractures present favorable union within 3 to 6 weeks. In the literature, biophysical stimulation has yielded favorable outcomes in the treatment of hand fractures. A survey involving hospitals in the US reported the use of biophysical stimulation (72%) in relation to nonhealing fractures at three months after trauma. A noninvasive procedure such as biophysical stimulation may be preferential prior to consideration of invasive procedures. In this retrospective study, we analyzed 80 phalangeal fractures, 43 of which did not show any radiographic sign of healing 30 days after surgery; on radiograms, we calculated radiographic data and the total active motion (TAM) for clinical comparison. All radiographic images were evaluated using Adobe Photoshop CS3 (version 10.0, Adobe Systems Inc., San Jose, CA, USA). We calculated the index of relative bone healing each month after surgery starting from 30 days, which was considered as T1, and followed up for a total of 6 months after stimulation (T6) with better results in stimulated groups. We concluded that prompt administration of biophysical stimulation supports fracture healing and yields an important improvement in the union rate compared with nontreatment. Above all, our patients experienced less injury-related distress between the fracture and repair period, which consequently reduced immobilization time, envisaging an early rehabilitation interval, with a better patient hand outcome.

The Iliac Crest Top Hat Bone Graft for Challenging Metacarpal Nonunion

Metacarpal nonunion is a rare outcome of metacarpal injury, and little has been published about its management. Care typically includes open reduction and internal fixation with a possible bone graft, similar to the treatment of other nonunions. However, there is no literature guidance if traditional methods do not lead to union. To improve the treatment of these recalcitrant metacarpal diaphyseal nonunions, we proposed a new surgical technique using a "top hat" bone graft harvested from the iliac crest. The graft is carefully shaped to create a cancellous "crown," which is inserted into the nonunion site, and cortical "brims," which are used to secure the graft to the metacarpal. This has been successful in treating 2 cases of metacarpal nonunion that failed to heal with first-line intervention.

Headless Compression Screw for Metacarpal Nonunion: Description of a New Technique and Report of 4 Cases

Nonunion is a rare complication of metacarpal fractures and is usually associated with compound, open fractures with tissue loss and infection, or after failed surgical treatment. Repair by rigid osteosynthesis with plate and screws combined with autologous bone grafting has always been the treatment of choice for most patients. Such method allows early motion, although it has been proven that the presence of hardware may cause local soft tissue irritation. Often, hardware removal and tendon releases are necessary. We describe an original technique with a fixation method for the treatment of metacarpal nonunions, considering the excellent results attained with an intramedullary, headless screw for metacarpal fracture fixation. We report a series of three cases that evolved to bone healing with excellent clinical, functional, and radiographic outcomes.

Intramedullary Screw Fixation Comprehensive Technique Guide for Metacarpal and Phalanx Fractures: Pearls and Pitfalls

Background:

Phalangeal and metacarpal fractures are the second and third most common upper extremity fractures after distal radius fractures with varying methods of fixation techniques. Intramedullary screw fixation is an increasingly preferred method of fixation. Benefits include early range of motion, faster recovery, limited dissection, and reduced complications. Improper technique, which is readily avoidable, can lead to suboptimal results.

Methods:

A review of recent literature on current techniques aims to summarize the biomechanics of intramedullary screw fixation and outline appropriate technique of placing headless compression screws for metacarpal and phalangeal fractures.

Results:

We discuss through images and videos the indications, preoperative workup, and technical pearls and pitfalls to encourage surgeons to add this technique to their armamentarium and improve outcomes.

Conclusions:

intrameduallry screw fixation is a powerful option for metacarpal and phalanx fixation that allows rigid stability, enabling early return of function with excellent rates of union and total active motion. With knowledge of technical pearls presented in this article, common mistakes can be avoided to improve efficiency of screw placement and optimize patient outcomes.

Comparison of surgical outcomes between single versus dual K-wire fixation for unstable distal phalanx fractures

Distal phalanx fractures are the most common injuries of the hand, and K-wire fixation is commonly performed for unstable fractures. However, there is no consensus regarding the number of K-wires to use in bone fixation. We aimed to compare the results between single and dual K-wire pinning. This retrospective study enrolled patients who underwent K-wire pinning for unstable distal phalanx fractures, including the shaft and tuft, from June 2016 through April 2020. We divided patients into two groups based on the number of K-wires used for bone fixation (single vs. dual). Clinical and radiographic data were measured and compared between the two groups. Additionally, multivariable logistic analysis was performed to identify the risk factors for nonunion. A total of 80 patients were enrolled. Among them, 27 were managed with a single K-wire and 53 with a dual K-wire. There was no significant difference in the union rate between the single and dual K-wire groups (77.7% vs. 84.9%, respectively), but time to union was significantly longer in the single K-wire group (11.3 vs. 8.4 weeks; p = .003). The presence of a bone gap after fixation was a risk factor for nonunion. Our study showed that the union rate was comparable between single and dual K-wire pinning in distal phalanx fractures. However, dual K-wire pinning shortened the union time.

Pseudoartrosis y consolidaciones viciosas de falanges distales

Objetivo: Analizar los resultados obtenidos en el tratamiento quirúrgico de las pseudoartrosis y mala consolidación de falange distal.

Material y método: Se revisaron las historias clínicas de tres pacientes que fueron tratados de una pseudoartrosis y uno de una mala consolidación de la falange distal. El tratamiento consistió en resecar el tejido fibroso, realizar un aporte de hueso esponjoso autólogo y una fijación interna con tornillos de minifragmentos. La vía de acceso varió en función de la localización de la lesión.

Resultados: En todos los pacientes se obtuvo la consolidación y reanudaron sus actividades previas sin molestias.

Conclusión: La pseudoartrosis y/o mala consolidación de falange distal puede solucionarse de forma efectiva mediante un apropiado abordaje quirúrgico, una fijación interna estable y aporte de injerto óseo autólogo.

The Use of Minilocked Plate for Management of Unstable Metacarpal Fractures

Objective This study aims to evaluate the use of minilocked plates in the treatment of the metacarpal fractures. Method A total of 30 patients of metacarpal fractures were treated by minilocked plates. Results Union was achieved in all patients. There were 27 (90%) patients having satisfactory results (excellent and good results) and 3 patients (10%) had poor results. Conclusion The use of minilocked plate is recommended for fixation of periarticular, comminuted, and osteoporotic metacarpal fractures that offer rigid fixation early mobilization, decreases the incidence of joints stiffness, and tendon adherence which maximized the hand function.

A Comparison of K-Wire Versus Screw Fixation on the Outcomes of Distal Phalanx Fractures

PURPOSE

To compare K-wire and screw fixation of distal phalanx (DP) fractures with respect to union and functional outcome.

METHODS

This retrospective study identified patients with DP fractures from a clinic registry taken from 2007 to 2013. Clinical data collected included patient demographics, range of motion (ROM), removal of implant (ROI), and complications. Radiographic data collected included fracture type, location, configuration, fracture displacement, and radiographic union. Statistical analysis was done using a chi-squared test for categorical variables and paired Student's t test for continuous variables.

RESULTS

A total of 172 patients with DP fractures were seen in our clinic between 2007 and 2013. Of these, 141 patients were managed conservatively and 31 patients had surgery for 33 DP fractures, of which 12 had K-wire and 21 had screw fixation. Mean union incidence for screw was 100% compared with 83% for K-wire. Time to union was 2.4 months for screw fixation compared with 4.1 months for K-wire fixation. ROM for screw fixation was significantly better (60°) compared with K-wire fixation (45°). ROM for non-transarticular K-wire (46°) was similar to transarticular K-wire (44°). ROI was performed in 52% of patients with screw fixation. Other than fingertip tenderness, which resolved after ROI, no other complications were noted.

CONCLUSIONS

Our study showed that the union incidence and time to union for screw fixation were comparable to those for K-wire fixation. Screw fixation of DP fractures resulted in greater distal interphalangeal joint motion compared with K-wire fixation but required removal in half of cases.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic III.

A Simple, Easy, and Reliable Technique of Phalangeal Corrective Osteotomy for Overlapping Fingers

Background:

The theory that malrotation is best assessed by making a fist and looking for digital overlap was the basis for devising a simple, easy, and reliable technique for phalangeal corrective osteotomy.

Methods:

This study assessed the phalangeal corrective osteotomy technique in 7 digits, involving 7 cases in 6 patients; 1 patient required treatment bilaterally. This technique required the use of a small hologram 2-row plate and screws to maintain stable fixation during aggressive postoperative therapy. Evaluation of the clinical results was based on the total range of active motion (%TAM), the grading of results according to Büchler, and the severity of pain reported by patients using the visual analog scale. The disability of the arm, shoulder, and hand questionnaire was completed preoperatively and at final follow-up by patients.

Results:

Corrective osteotomy corrected the overlapping of digits in all of the patients. There were no perioperative complications. Bone union was obtained in all cases, on average 13.4 weeks after surgery. Two osteotomies required secondary tenocapsulolysis concomitant with implant removal surgery. In light of total range of active motion and Büchler’s grade, all the patients had excellent to good results for both criteria at final follow-up. No patient complained about pain. Mean disability of the arm, shoulder, and hand scores significantly decreased from 16.9 (range, 11.3–26.5) preoperatively to 3.9 (range, 0–7.6) postoperatively.

Conclusions:

Phalangeal corrective osteotomy was performed using a simple, easy, and reliable technique.

Management of complications with hand fractures

Both operative and nonoperative treatment of hand fractures can result in numerous complications, including stiffness, malunion, nonunion, arthritis, infection, and complex regional pain syndrome. These complications are frequently encountered and are often challenging to treat. This article systematically outlines the diagnosis and treatment of each of these complications to achieve the best possible outcome for the patient's overall hand function.

TREATMENT OF ATROPHIC NONUNION OF MIDDLE PHALANX IN A NINE-YEAR-OLD BOY WITH EXTERNAL DISTRACTION AND BONE GRAFTING

Nonunion of phalangeal fractures is uncommon and even rarer in the paediatric age group. There is paucity of literature relating to the treatment of atrophic non-union of phalangeal fractures in the paediatric age group. We present a case of five years old atrophic non-union of the middle phalanx of the index finger of the dominant hand in a nine-year-old male child, managed with a staged treatment protocol of initial fracture site distraction with a threaded external fixator followed by delayed bone grafting. This treatment was successful in attaining length and bony union in case of atrophic non-union of the middle phalanx with a good pinch strength and gaining a good range of motion at the proximal interphalangeal joint with little soft tissue dissection.

Refinements and secondary surgery after flap reconstruction of the traumatized hand

The traumatized hand often has soft tissue loss requiring flap reconstruction. Before proceeding with flap selection, the need for future refinement and secondary surgery should be taken into consideration. Although muscle flaps may offer better contour, fasciocutaneous flaps allow easier secondary flap elevation. After the initial flap reconstruction, indications for secondary procedures may be managed according to tissue type: bone, joint, tendon, nerve, and soft tissue.

Metacarpal fractures: treatment and complications

Metacarpal fractures comprise between 18-44 % of all hand fractures. Non-thumb metacarpals account for around 88 % of all metacarpal fractures, with the fifth finger most commonly involved [19]. The majority of metacarpal fractures are isolated injuries, which are simple, closed, and stable. While many metacarpal fractures do well without surgery, there is a paucity of literature and persistent controversy to guide the treating physician on the best treatment algorithm. The purpose of this article is to review non-thumb metacarpal anatomy and treatment protocols for nonoperative management of stable fractures, and compare existing literature on surgical techniques for treatment of acute fractures and complications.

Correction of distal phalangeal nonunion using peg bone graft

PURPOSE

To evaluate the outcome of a peg bone graft for treatment of distal phalangeal nonunion, in terms of safety and effectiveness.

METHODS

We performed grafts using bone pegs in 13 patients who reported pain and instability of the fingertip as a result of distal phalanx nonunion. Surgical procedures included harvesting cancellous and cortical bone from ilium, radius, or ulna. We made a small incision in the fingertip and placed the bone pegs through the canal created for this access. In a few cases in which the bone peg did not offer mechanical stability, we used K-wires for additional support.

RESULTS

All patients had successful union of the distal phalanx without serious complications in either donor or recipient areas. Range of motion improved postoperatively. An additional operation was needed in 1 case.

CONCLUSIONS

The use of a peg bone graft in the treatment of distal phalanx nonunion offers easy access to the nonunion area and allows for effortless internal fixation. The bone contact area was increased, resulting in bone union and stability. Therefore, bone peg graft could be considered a potential method for the treatment of distal phalanx nonunion.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

The biomechanics of fixation techniques for hand fractures

Multiple options are available for the fixation of metacarpal and phalangeal fractures; treatment options depend largely on the fracture characteristics, concomitant injuries, and surgeon preference. With an understanding of the options available and the biomechanics involved, appropriate treatment options may be chosen. Although plate and screw constructs provide the strongest fixation for these fractures, many other techniques provide adequate fixation and may be favored for reasons other than biomechanics.

Current management of metacarpal fractures

Metacarpal fractures are common, and many can be managed nonoperatively with appropriate reduction and immobilization. As with any hand fracture, the primary goals are to achieve anatomic and stable reduction, bony union, and early mobilization to minimize disability. Appropriate treatment requires a keen understanding of the types of fractures, their inherent stability, and the available treatment options. Functional outcomes depend on appropriate treatment and early range of motion whenever possible.

Fractures of the thumb and finger metacarpals in athletes

Most metacarpal fractures are minimally displaced and are treated without surgery. Markedly displaced fractures, fractures causing finger rotation, and displaced intra-articular fractures require surgical intervention. The challenge with the elite athlete is achieving an early return to play without compromising fracture position. Casts, splints, and surgery each have a role in getting the athlete back into action as soon as possible.

Vascularized genicular osseous-periosteal flap for pseudarthrosis of the proximal phalanx of the little finger: a case report

This study describes pseudoarthrosis of the proximal phalanx of the little finger and its successful treatment using a free vascularized genicular osseous-periosteal flap. Since this thin and pliable flap can be harvested as a small vascularized unit, it is ideal for the treatment of phalangeal pseudoarthrosis.

Corrective osteotomy for isolated malunion of the palmar lunate facet in distal radius fractures

PURPOSE

Malunion of the palmar lunate facet fragment of distal radius fractures is associated with both early functional impairment and late degenerative changes. The goal of this study was to describe the clinical and radiographic outcomes after corrective osteotomy for isolated malunion of the palmar lunate facet.

METHODS

Between 1995 and 2000, a retrospective review identified 13 patients with an average age of 44 years who had undergone corrective intra-articular osteotomy for isolated malunion of the palmar lunate facet. The average interval from the initial injury to the osteotomy was 5.4 months. Final evaluation was performed at 1 year. We performed statistical analysis using the Wilcoxon signed rank test.

RESULTS

Wrist extension improved from an average of 53° to 84° (p = .002), flexion from 46° to 61° (p < .002), supination from 38° to 87° (p = .002), and pronation from 79° to 87° (p < .001). Grip strength improved from 30% to 73% of the contralateral side (p < .002). Disabilities of the Arm, Shoulder, and Hand scores improved from an average of 50.7 to 9.7 (p < .002). Palmar tilt improved from an average of 23° to 11° (p < .002). Radial inclination improved from an average of 29° to 22° (p < .002), ulnar variance decreased from +3.9 to -0.9 mm (p = .004), and intra-articular gap decreased from 3.6 to 0.9 mm (p < .002). All patients had excellent or good results according to both the Gartland and Werley and the Fernandez scoring systems.

CONCLUSIONS

Early intra-articular osteotomy significantly improved wrist range of motion, grip strength, Disabilities of the Arm, Shoulder, and Hand scores, and radiographic parameters. Patients reported mostly positive outcomes.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

The role of locking technology in the hand

Locked fixed-angle plating in the hand and wrist helps to optimize outcomes following surgical fixation of select acute fractures and complex reconstructions. Select indications include unstable distal ulna head/neck fractures, periarticular metacarpal and phalangeal fractures, comminuted/multifragmentary diaphyseal fractures with bone loss (ie, combined injuries of the hand), osteopenic/pathologic fractures, nonunions and corrective osteotomy fixation, and small joint arthrodesis. Locked plating techniques in the hand should not be seen as a panacea for wrist and digital acute trauma and delayed reconstructions. An understanding of the biomechanics of fixed-angle plating and proper technical application of locking constructs will optimize outcomes and minimize complications. As clinical experience with locking technology in hand trauma broadens, new indications and applications will emerge. Currently, several systems are available. The specific implants share common features in their protocols for insertion, but unique differences in their design (ie, individual locking mechanisms, uniaxial vs polyaxial locking capability, metallurgy, and plate profiles) must be appreciated and considered preoperatively.

Complications after the fractures of metacarpal and phalanges

Fractures of the metacarpals and phalanges represent 40% of all upper extremity fractures. Complications associated with these fractures are also prevalent, and can arise with both conservative and surgical treatment of hand fractures, making treatment of complications an essential part of caring for these injuries. In this article the treatment of complications associated with open fractures and infection are reviewed, in addition to current treatment options for malunion and stiffness.

Treatment of nonunions of the distal phalanx with olecranon bone graft

Distal phalangeal fractures are the most common fractures of the hand but nonunions are unusual in the distal phalanx. Eleven patients were operated on for nonunions of the distal phalanx. The diagnosis of nonunion was made by the presence of the clinical (pain, deformity, instability) and radiological signs of nonunion more than 4 months after the initial injury. Three patients had developed infection and four of them had bone resorption after their initial treatments, which probably caused nonunion. Olecranon bone grafting combined with Kirschner wire fixation was done in all patients. The mean follow up was 7 months (range 5-18 months). There were no major complications at the donor or recipient sites. One patient had a haematoma formation at the donor site. There was complete radiological union of bone-grafted sites in all patients except one. There were no cases of pain, deformity, or instability after the treatment. The olecranon bone graft was found to be safe and easy to harvest. Its strong tubular structure replaced the distal phalanx successfully.

Diaphyseal non-union in the distal phalanx of a child

Non-union after finger fracture is an infrequent complication. Although well described in adults, there are few reported cases in children. We describe a 6 year-old boy who presented with a non-union of the diaphysis of the distal phalanx three years after a finger tip crush injury.

Simple hand fractures that aren't

Patients expect physicians to predict the future. Recognizing injuries that behave badly improves care and modulates expectations. Your antennae should deploy when you are presented with a simple fracture that isn't.

Vascularised bone grafts for the management of non-union

Non-union of the long bones may have severe consequences, particularly when combined with other post-traumatic sequelae, such as tendon adhesions, reflex sympathetic dystrophy and infection, among others. In these cases, it is important to treat the delayed union or non-union first or at the same time with the other problems in order to achieve adequate function. Once the normal bony healing process has been slowed or stopped, it is necessary to provide both stability to the fracture site, as well as a biological stimulus for the fibrocartilagenous callus to finish the healing process. Vascularised grafts, such as the free fibula, offer not only structural support, but also promote bone healing. The later is achieved by trabecular bone formation, as well as vascular sprouting from pedicle vessels.

Closed Reduction of Hand Fractures

Stiffness is the most frequent consequence of open hand fracture treatment. Although initial injury severity and occurrence adjacent to the flexor tendon sheath are the most highly correlated determinants of hand fracture outcome, operative intervention accentuates the ultimate risk of stiffness. Closed treatment may minimize this risk. Articular fractures are at greater risk for stiffness than extra-articular fractures. Functional tolerance for small amounts of variation from perfect anatomic restoration gives us increased latitude for closed hand fracture management. Operative treatment may be justified for simple closed fractures when they are unstable, irreducible, or open, or when the surgeon believes that the risk-to-benefit ratio is favorable.

Autogenous bone grafting for fractures of the hand

Autogenous bone grafting of hand fractures often occurs within the milieu of a complex wound. Risks of infection and/or stiffness increase with injury severity, contamination, and the time interval between injury and successful wound closure or coverage. A clean wound is paramount for successful tissue repair, reconstruction, and closure. Skeletal restoration is an integral component of composite wound management. Fracture stabilization enhances pain control, protects soft tissue repairs and reconstruction, inhibits infection, and facilitates bone graft consolidation and functional recovery. Mini plate fixation provides the sustained stability necessary for hand fractures with bone loss to heal. Bone grafting is an essential element of skeletal restitution for defects due to comminution or actual loss. Cancellous bone grafts heal more rapidly and are more resistant to infection than cortical bone grafts and may be preferable for partial or smaller intercalary defects. Cortical or corticocancellous grafts augment stability and may be especially useful for larger segmental diaphyseal defects and articular bone loss requiring arthrodesis.

Influence of fracture pattern on consolidation after metacarpal plate fixation

INTRODUCTION

Consolidation problems may complicate plate fixation of metacarpal fractures. It was our clinical impression that the fracture's morphology and the patient's occupation may influence this complication.

METHOD

Retrospective study on 104 extra-articular metacarpal fractures. Time to union, presence of consolidation problems and time to return to work were correlated with fracture pattern (transverse/non-transverse), presence of soft tissue injury, type of patients and type of plate.

RESULTS

Twelve patients (15%) experienced consolidations problems: 8 patients within the transverse fracture pattern group (29.6%) and 4 patients (7.4%) within the non-transverse fracture group. The difference was significant (P = 0.01). Manual workers were found to be more likely than non-manual workers to have consolidation problems (p < 0.01) in both groups of fractures. There was no correlation between consolidation problems and hand dominance (P = 0.76), soft tissue injury (P = 0.24) or type of plate (P = 0.34).

DISCUSSION

We found a significant correlation between fracture patterns, patients' profession and consolidation problems. Despite technical advances in plate design, management of such fractures by plating remains fraught with complications, demands meticulous handling of soft tissue and does not allow for technical error.

Management of metacarpal fractures

Fractures of the hand are the most common fractures of the human skeleton. Metacarpal fractures account for 30% to 50% of all of hand fractures. The mechanisms of these injuries vary from axial loading forces to direct blows to the dorsal hand. Resulting deformities include malrotation, angulation, and shortening. Treatment modalities vary from nonoperative reduction to open reduction and internal fixation. The treatment algorithm is guided by the location of the fracture, the stability of the fracture, and the resultant deformity. Operative procedures, although they may lead to excellent radiographic reduction of fractures, often lead to debilitating stiffness from the inflammatory reaction of the surgical procedure. Operative fixation must be employed judiciously and offered only when confident that non-operative therapy can be improved on with operative intervention. This article reviews the various types of metacarpal fractures, with the treatment options available for each fracture. The indications for each treatment modality, postoperative care, and rehabilitation are presented.

Complications of plate fixation in metacarpal fractures

BACKGROUND

The objective of this study is to assess the complications after open reduction and plate fixation of extra-articular metacarpal fractures.

METHODS

We retrospectively reviewed the clinical and radiologic records of 129 consecutive patients with 157 metacarpal fractures treated by open reduction and internal fixation with plates between 1993 and 1999. Intra-articular fractures and fractures of the thumb metacarpal were excluded. Eighty-one patients (64 men and 17 women) with 104 fractures were available for review, at an average follow-up of 13.6 months (range, 6-27 months).

RESULTS

Twenty-eight patients (35%) and 33 fractures (32%) had one or more complications, including difficulty with fracture healing (12 patients [15%]), stiffness (eight patients [10%]), plate loosening or breakage (seven patients [8%]), complex regional pain syndrome (two patients), and one patient who developed a deep infection.

CONCLUSION

Despite technical advances in implant material, design, and instrumentation, plate fixation of metacarpal fractures remains fraught with complications and unsatisfactory results.

Nonunion in a fracture of the proximal phalanx of the thumb

We describe the management of atrophic nonunion in a fracture of the proximal phalanx of the thumb in a patient who presented one and a half years after the injury. By using threaded external fixators applied across the fracture nonunion, stability for active mobilization of the metacarpophalangeal joint was achieved. The gradual distraction resulted in correction of the deformity and the shortening, as well as creation of an adequate space between the bone ends. Bone grafting and compression of the fracture with the same fixators followed. Consolidation of the fracture occurred within five months. Follow-up examination two and a half years postoperatively revealed complete remodeling of the fracture and excellent function of the hand.

Operative treatment of metacarpal and phalangeal shaft fractures

Diaphyseal fractures of the metacarpals and phalanges are common injuries that can lead to impairment of hand function. The fracture pattern and soft-tissue injury vary with the mechanism of injury. The imbalance of the flexor and extensor forces created by displaced fractures will often produce a secondary angulatory deformity. Nonoperative treatment is indicated for reducible and stable fracture configurations. Irreducible or unstable fracture patterns require open or closed reduction and fixation. Reduction must be assessed in flexion and extension to ensure correct rotatory alignment. Fracture fixation can be achieved with the use of Kirschner wires, interfragmentary screws, or plates. The outcome after surgery is greatly influenced by the condition of the surrounding soft tissues; therefore, surgical trauma should be minimized to optimize the result.

Dynamic treatment of displaced proximal phalangeal fractures

We report a splint system for a protected mobilization program (termed dynamic treatment) of proximal phalangeal fractures. This program can be used for nonoperative treatment or after operative treatment. Intra-articular fractures of the proximal phalanx at the metacarpophalangeal joint were included. The custom-molded 2-component thermoplastic splint allows motion of the proximal and distal interphalangeal joints. It was developed to allow bone healing and recovery of motion at the same time. We evaluated the clinical and radiologic results of a consecutive series of 48 displaced proximal phalangeal fractures in 45 patients who received dynamic treatment. Fracture consolidation was achieved in all patients and bone healing and recovery of full active motion was achieved simultaneously in all but 4 patients by 6 weeks. The advantage of this splint system is the variability of its application. The splint can be used both for nonsurgical and surgical management. It can be removed to change dressings and for radiologic evaluations. The period of dynamic treatment can be determined individually in each case.

Pseudarthrosis of the middle metacarpal following intramedullary fixation of a wrist arthrodesis

We describe the case of a 36-year-old woman who presented with an unusual seronegative monoarthropathy of the right wrist and who was treated with fusion by the method of Clayton (1965). The patient probably sustained a metacarpal fracture during intramedullary Steinmann pin insertion, and subsequently developed a pseudarthrosis.

The treatment of a phalangeal delayed union using electrical stimulation

The use of electrical stimulation to heal ununited fractures or nonunions of phalanges has not been previously reported. A case is reported using pulsed electromagnetic fields (PEMF) in the treatment of a phalangeal delayed union.