Lessons Learned from the Management of Complex Intra-Articular Fractures at the Base of the Middle Phalanges of Fingers

Pins and Rubbers Traction System for Treatment of Intraarticular Fractures of Distal Interphalangeal Joint

Background: The pins and rubber traction system (PRTS) has proven effective in managing intra-articular fractures of the proximal interphalangeal joint. However, there is scant evidence in the literature regarding its efficacy in treating distal interphalangeal joint (DIPJ). This study aims to investigate the outcomes of PRTS in the treatment of comminuted intra-articular fractures of the DIPJ. Methods: We conducted a retrospective review of patients with comminuted intra-articular fractures of the DIPJ treated with PRTS between 2017 and 2021. At the final follow-up, we measured and compared the active range of motion (ROM) in both affected and non-injured contralateral fingers. The subjective evaluation utilised the Quick Disabilities of the Arm, Shoulder and Hand (Quick-DASH) questionnaire and the Visual Analogue Scale (VAS). Results: Ten patients with a mean follow-up of 13.2 months (range: 12-17) were included in the study. Fracture locations included the base of the distal phalanx in two patients, the condyle of the middle phalanx in seven and both in one patient. At the final follow-up, the average VAS score was 0.5 (range: 0-2). The average active motion of the DIPJ was 61° (range: 50°-70°) for the injured side and 76° (range: 75°-80°) for the opposite side. The mean range of DIPJ movement was 80% (range: 68%-87%) of the non-injured side. Extension deficits were observed in five patients, with a median deficit value of 10° (range: 5°-10°). The average Quick-DASH score was 2.9 (range: 0-11.3). Conclusions: The PRTS can be considered as an effective surgical technique in managing comminuted intra-articular fractures of the DIPJ. Level of Evidence: Level IV (Therapeutic).

The management of acute fracture dislocations of proximal interphalangeal joints: a systematic review

LEVEL OF EVIDENCE

III.

Pins and rubbers traction system for fractures of the proximal interphalangeal joint

PURPOSE

We aimed to evaluate the clinical results using the pins and rubbers traction system (PRTS) as described by Suzuki et al. for unstable intra-articular fractures of the proximal interphalangeal (PIP) joint and to assess the efficacy and the indication of the technique of the PRTS.

METHODS

Thirty-nine fingers in 39 patients (mean age 46.0 years) with unstable fractures of the PIP joint were treated by the PRTS. The mean interval between injury and surgery was 30.8 days. Active and passive exercise of range of motion of all fingers was started immediately after surgery. Radiographic and clinical results were evaluated at the final examination.

RESULTS

The mean period the PRTS was applied was 6.4 weeks. The mean follow-up period was 8.9 months. Anatomical union was obtained in all patients. No joint instability, no malunion, nor osteomyelitis was observed. At the final examination, the average active range of motion of the PIP joint was 74.6°. The average Visual Analogue Scale for pain and Quick Disability of Arm, Shoulder, and Hand score were 1.2 and 3.2, respectively.

CONCLUSIONS

The current study demonstrated good results of the PRTS for unstable intra-articular fractures of the PIP joint. Furthermore, satisfactory results were obtained in cases of an incomplete amputation at the PIP joint, a pathological fracture due to bone tumor, and an osteochondral defect due to comminuted fracture of the proximal phalangeal head, where costal osteochondral bone was transplanted. From this study, the PRTS is recommended as a useful treatment because it is widely effective for various unstable fractures of the PIP joint.

Use of a Costal Osteochondral Graft for Reconstruction of a Proximal Phalanx Head with a Comminuted Fracture of the Proximal Interphalangeal Joint

We report the use of costal osteochondral grafting with a pins and rubbers traction system (PRTS) for treatment of a complex cartilage defect of the proximal interphalangeal (PIP) joint in a 41-year-old male carpenter who had inadvertently incompletely severed his finger with a power saw. The skin laceration extended to the dorsal aspect of his ring finger and resulted in incomplete loss of the ulnar condyle and comminution of the radial condyle of the proximal phalanx of the PIP joint. The diagnosis was intra-articular PIP joint open fracture of the left ring finger with a 60% defect of the proximal phalanx joint surface. Three weeks after the injury, PIP joint reconstruction was performed with a costal osteochondral graft harvested at the osteochondral junction of the fifth rib. The volar side of the proximal phalanx cortex and the condyles of the proximal phalanx on each side, which included the origin of the collateral ligaments, were preserved. The graft was shaped to match the defect, and biplane fixation with three miniscrews was subsequently performed. Last, a PRTS was attached. At 6 months postoperatively, the patient returned to his job; at 12 months postoperatively, the joint was stable and free of pain. This technique enabled preservation of joint stabilizers and rigid fixation of the graft, resulting in a good outcome. Our modified costal osteochondral graft with a PRTS is useful for severe intra-articular fractures of the PIP joint and should be considered before salvage procedures.

Hemi-hamate osteochondral autograft for acute dorsal proximal interphalangeal fracture-dislocations

PURPOSE

Our aim was to investigate the clinical and radiological results of a hemi-hamate autograft arthroplasty method in patients with acute trauma who had a fragmented fracture of the proximal palmar joint surface of the middle phalanx and dorsal PIP subluxation.

METHODS

A total of 13 fingers from 13 patients who met the criteria were included in the study (11 men and 2 women) and prospectively reviewed. The mean age of the patients was 39.5 years. The mean interval between the injury and surgery was 6.3 days. The active movement of the DIP, PIP, MP and wrist joints was started on postoperative day. Follow-ups were performed at 6 weeks, 3, 6 and 12 months postoperatively. Range of motion for the DIP, PIP and MP joints, DASH and VAS scores, grip strength, two-point discrimination, finger pulp and palmar curve distance were evaluated.

RESULTS

All PIP joints were stable against coronal and sagittal stress at the 1st postoperative year and there was no limitation in wrist movements. Two-point discrimination was < 5 mm in all fingers. Union was achieved in all grafts except one. The mean active total PIP range of motion was 82.3°, DIP range of motion was 61.1°, MP joint motion was 87°. The mean DASH score was 7.6, and the mean VAS score was 1.5. The mean grip strength was 33.7 kg, which was 93% of the healthy side. The mean finger pulp and palmar curve distance was 8.6 mm.

CONCLUSIONS

We believe that HHA is an appropriate alternative in cases of acute dorsal PIP fracture-dislocations with an intact middle phalanx dorsal cortex that is not suitable for primary fixation, with the advantages of obtaining stable joint and satisfactory functional results.

Dorsal Plating for Intra-articular Middle Phalangeal Base Fractures With Volar Instability

Background: Intra-articular middle phalangeal base fractures with volar instability are rare injuries with scant literature on optimal management. Our purpose is to describe our method of dorsal plating and report postoperative outcomes. Methods: This study is a retrospective case review of 5 patients with intra-articular middle phalangeal base fractures with volar proximal interphalangeal joint instability, measuring subjective, clinical, and radiographic outcomes. Results: Patient age averaged 38.2 years (range, 23-56 years), and 80% were male. Sporting injuries were the most common mechanism (80%). Time to surgery averaged 7 days, and postoperative follow-up duration averaged 19.6 months (median 8 months). All fractures were intra-articular at the proximal interphalangeal joint with volar instability. There were no complications and no patients required secondary surgery. Grip strength was maintained and range of motion was good, based on the American Society for Surgery of the Hand Total Active Motion score. Average Quick Disability of the Arm, Shoulder and Hand was 0.5 (range, 0-2.3), 100% of patients were satisfied, and average visual analog pain score was 1.2. Patients returned to work at a median of 4 days. There was radiographic union at an average of 6.6 weeks (range, 6-7 weeks) in all fractures. Conclusions: Dorsal plating using a 1.5-mm modular hand plate is a viable option for rigid fixation of intra-articular middle phalangeal base fractures with volar instability. This fixation method allows for early range of motion without complications in this case series. All fractures united, and patients had minimal functional deficits and were able to maintain good range of motion.

Injuries Around the Proximal Interphalangeal Joint

Proximal interphalangeal joint (PIPJ) injuries are common and challenging to treat, involving a spectrum of conditions ranging from isolated ligamentous injuries to severe fracture dislocations. The main goal of treatment is to achieve a congruent, stable joint, which is key to achieving early range of motion and a favorable outcome. Injuries that do not compromise the stability of the joint may be treated nonsurgically, whereas those that render the joint unstable may be managed with one of many surgical strategies available. This article focuses on the current practices of treatment of injuries around the PIPJ.

Dynamic "Homemade" Digital External Fixators for Proximal Interphalangeal Joint Injuries

The purpose of this article is to discuss the indications and surgical techniques of "homemade" digital external fixators constructed from easily available and inexpensive hardware (K-wires and dental rubber bands).

Distraction ligamentotaxis for complex proximal interphalangeal joint fracture dislocations: a clinical study and the modified pins rubber band traction system revisited

Background

The purpose of this study is to present our experience with the modified pins and rubber band traction system, discuss problems encountered, and make recommendations to optimize outcomes.

Methods

Data was collected prospectively from November 2013 to March 2017 at a tertiary referral hospital in Melbourne, Australia. Patients with closed complex proximal interphalangeal joint fracture dislocations that were considered unsuitable for other surgical options were included in the study. Patients underwent dynamic skeletal distraction using the modified (Deshmukh) pins rubber band traction system. Outcomes were measured using the Nominal Rating Scale for pain; Disabilities of the Arm, Shoulder, and Hand (DASH) score; active and passive range of motion; patient rating scale; and complications.

Results

Twenty patients underwent the procedure, and 19 were included in analyses. At the final follow-up assessment, an average of 62° and 77° was achieved for proximal interphalangeal joint active and passive range of motion, respectively. Pain levels were low (median score of 0 at rest and 1 ranging, out of 10). Four patients suffered minor pin site infections.

Conclusion

Distraction ligamentotaxis is a useful part of the armamentarium, especially in the absence of more suitable procedures. It is important to select appropriate patients, educate, and ensure adherence to postoperative therapy. Employing the Deshmukh frame modification streamlines the theatre processes, and removal of wires at approximately 4 weeks minimizes risk of pin site infection.

A scoping review of applications and outcomes of traction orthoses and constructs for the management of intra-articular fractures and fracture dislocations in the hand

INTRODUCTION

Intra-articular hand fractures can have devastating consequences for movement and function. The unique nature of the injury and diverse management strategies are a challenge for conducting trials.

PURPOSE OF THE STUDY

To conduct a scoping review of traction constructs for the management of intra-articular hand fractures.

METHODS

We conducted a systematic search of the literature, extracting data on the scope and nature of the evidence for traction constructs.

RESULTS

Our search yielded 87 articles addressing 3 traction constructs: (1) static traction (n = 17), (2) dynamic external fixation (n = 53), and (3) dynamic orthoses (n = 17). Active range of motion of the target joint was the most frequently reported outcome. Study designs included 36 cohorts, 21 case series, and 9 case studies: 24% contained only technical information.

CONCLUSIONS

The current literature addressing traction constructs consists primarily of small and low-quality studies. Evidence synthesis could improve the estimation of range of motion outcomes but would not be able to identify the best treatment. Consensus on classification of fracture patterns, routine use of outcome measures, and randomized trials are needed to compare different traction constructs and inform evidence-based care.

STUDY DESIGN

Scoping review.

LEVEL OF EVIDENCE

N/A.

The use of dynamic external fixation in the treatment of dorsal fracture subluxations and pilon fractures of finger proximal interphalangeal joints

The aim of this study was to review the outcome of the treatment of finger proximal interphalangeal joint dorsal fracture subluxations and pilon fractures with a modified external fixator. We treated 36 patients (36 fingers). We assessed the ranges of motion and patient satisfaction. At final follow-up, 23 patients had no pain; 11 had pain in the cold; and two also had mild pain. None had moderate or severe pain. The mean range of proximal interphalangeal joint motion was 86° (60°-100°). The mean total active range of finger motion was 244° (range 200°-265°). This system is simple, cheap and relatively easily applied. It gives stable fixation that allows early mobilization.

LEVEL OF EVIDENCE

IV.

The Use of a Simple Dynamic External Fixator for the Treatment of Volar Fracture Subluxation of Proximal Interphalangeal Joints of the Fingers

Volar fracture dislocation is very uncommon, with few series reported in the literature. Patients with such injuries were treated by modified dynamic external fixators. The mean follow-up was 18 months (range, 6 to 92 mo). The mean range of interphalangeal (proximal interphalangeal) joints and distal interphalangeal joints were 90 and 74 degrees, respectively. The total active range of motion (TAM) was excellent (256 degrees). The mean quick disabilities of the arm, shoulder and hand score was 1.2. The advantages of our external fixators are that they are simple, cheap, adjustable, and allow immediate range of motion.

The S-Quattro in the Management of Acute Intraarticular Phalangeal Fractures of the Hand

Intraarticular phalangeal fractures of the hand are difficult and challenging to manage. Dynamic external fixation devices offer the advantages of allowing distraction of the impacted fracture and early joint mobilization. We present our study of 100 patients with a variety of fractures who were treated with the S-Quattro technique over a 6-year period, with an average follow-up of 10.5 months. The mean active range of motion regained was 92° for proximal interphalangeal joints (81 fractures), 82° for distal interphalangeal joints (10 fractures), 91° for metacarpophalangeal joints (6 fractures) and 80° for interphalangeal joints of the thumb (3 fractures). Only nine patients complained of mild or moderate pain. Postoperative radiographic appearances were satisfactory in all but five out of the 100 patients. This device is a simple and effective technique for the management of these difficult fractures. It offers advantages in terms of versatility, ease of application, good tolerance by patients, few complications and good outcome.

Dorsal Fracture Dislocations of the Proximal Interphalangeal Joint Treated by Open Reduction and Interfragmentary Screw Fixation: Indications, Approaches and Results

Many operative and non-operative treatments of dorsal fracture dislocations of the proximal interphalageal (PIP) joint have been described. Return of good joint function requires anatomical reduction of the articular fragments and restoration of joint congruity and a stable functional arc of motion, with the fixation construct stable enough for early mobilization. To prevent recurrent dorsal subluxation, the attachments of the ligamentous palmar restraints and the bony buttress provided by the palmar lip of the middle phalanx base must be restored. Open reduction and internal interfragmentary screw fixation using 1.5 or 1.3 mm screws was employed in 12 fingers in 10 patients with unstable dorsal fracture dislocations of the PIP joints of Schenck grades III and IV. At an average follow-up of 8.7 months, all patients in this series achieved good to excellent results and an average total active interphalangeal motion of 132° (range 105°–165°). Additional benefits over non-operative techniques included improved patient comfort and simplified nursing care and therapy supervision.

Treatment of fracture subluxations of the proximal interphalangeal joint using a ligamentotaxis device: a multidisciplinary approach

Complex fracture subluxations of the proximal interphalangeal joint are often difficult to treat and their outcome variable. A number of methods for treatment of these injuries have been described. We have used a ligamentotaxis device (Ligamentotaxor, Arex, Palaiseau Cedex, France) since 2008. We performed 28 operations in 28 patients with complex proximal interphalangeal joint injuries over a 3-year period. Patients followed a standardized postoperative rehabilitation regime, including fixator adjustment as necessary. The mean age was 33 years (range 18-67). The mean time to surgery was 7 days. At final follow-up (mean 22 months, range 6-52) the mean proximal interphalangeal joint range of motion was 85° (range 60°-110°). The mean QuickDASH functional outcome score was 4.8 (range 0-36.4). Our results compare favourably with other devices reported in the literature.

Delayed treatment of unstable proximal interphalangeal joint fracture-dislocations with a dynamic external fixator

BACKGROUND

Fracture-dislocations of the proximal interphalangeal joint (PIPJ) remain a challenging problem to treat. Although there are a number of papers describing the use of dynamic external fixators and force couples for treatment of unstable PIPJ fracture-dislocations acutely, the literature is scarce on delayed treatment of PIPJ fracture-dislocations, where malunion of the articular surface may theoretically compromise postoperative range of motion (ROM) at the PIPJ. The purpose of this study was to evaluate the effectiveness of dynamic distraction external fixation (DDEF) for the delayed treatment of PIPJ fracture-dislocations at least 3 weeks after the inciting injury.

METHODS

Ten consecutive patients were treated with delayed DDEF between 2010 and 2013. Postoperative ROM at the PIPJ was measured. Disabilities of the Arm, Shoulder and Hand (DASH) score and Michigan Hand Outcomes Questionnaire were administered to all patients postoperatively.

RESULTS

Mean time from injury to surgery was 27.5 days. The mean follow-up period was 23.7 months (range 10-36). The mean active ROM at the PIPJ on final postoperative follow-up was 83.9° (range 52-100). None of the patients experienced pin-tract infections. Mean DASH score was 3.7+3.4 and mean Michigan Hand Outcomes Questionnaire score was 97.3+3.0. All patients returned to work and resumed normal activities.

CONCLUSIONS

Delayed treatment of unstable PIPJ fracture-dislocations with a DDEF is effective in restoring function to the PIPJ. Nascent malunion of the PIPJ articular surface does not compromise postoperative outcomes and the joint surface undergoes remodelling over time to restore a smooth and functional articular surface.

Proximal interphalangeal joint fractures treated with a dynamic external fixator: A multicenter and retrospective study of 88 cases

Ligamentotaxis is now a well-established treatment method for proximal interphalangeal (PIP) joint fractures. Despite satisfactory results, the technique is considered complex and the devices cumbersome. The aim of this study was to evaluate a miniaturized dynamic external fixator (Ligamentotaxor(®)) for the management of these fractures. Eighty-six patients with 88 fractures of the PIP joint were treated at 10 European hand surgery centers. The device was applied within eight days of the injury and was removed 40-45 days after the injury. Treatment complications included superficial infection (4 cases), osteoarthritis (1 case), and localized but resolving complex regional pain syndrome (4 cases). The fracture healed in all cases. At final follow-up (mean: 15.2 months), average range of motion was 70° (range: 0-110°). Functional results were comparable between the 10 participating centers. Pain occurred upon exertion in 47% of the patients, 40% were sensitive to weather changes and 26% experienced constant pain. The mean QuickDASH score was 15.7 (range: 11-37) and 83.7% of the patients had no limitations during their daily activities. The results of this series are similar to those reported in other studies of PIP fracture treatment with external fixators. This technique is reliable and reproducible. The device is easy to handle by surgeons and well tolerated by patients. We think that this simple, reliable technique could be relevant for the management of PIP joint fractures.

Swing traction versus no-traction for complex intra-articular proximal inter-phalangeal fractures

INTRODUCTION

Traction orthoses are thought to optimize recovery from intra-articular finger fractures by restoring joint space and allowing early motion. Evidence to date has, however, consisted only of case series.

PURPOSE OF THE STUDY

To compare swing traction versus no-traction management of complex fractures of proximal inter-phalangeal (PIP) finger joints. We hypothesized that there is no long-term (i.e. >12 month) difference between swing traction and no-traction (with or without surgical fixation) in terms of motion, pain, function, patient satisfaction, or treatment cost.

METHODS

Adults with a history of complex PIP fractures affecting ≥30% of articular surface injury were identified from database searches at three public hospitals and a private clinic and invited to participate. X-rays taken at the time of injury were graded by two blinded assessors, and participants attended a clinic for measurement of range of motion (ROM) and self-reported function, pain, and satisfaction at least one year post injury. Participant data were then were grouped by treatment provided. One group (N = 17) was treated with swing traction and the other group (N = 14) had no-traction. The primary outcome was combined motion of the PIP and distal inter-phalangeal (DIP) joints, expressed as both total active motion and Strickland score. Secondary outcomes were physical function and symptoms as measured by the Disabilities of Arm, Shoulder and Hand (DASH), patient satisfaction, pain, complication rates, and cost of treatment, based on mean resource consumption per group.

RESULTS

Patients treated with swing traction had greater finger motion than those in the no-traction group, which was statistically and clinically significant. There were no differences in patient ratings of function, pain or satisfaction. Complications, such as swan-neck deformity, cold sensitivity, malunion, infection, or adhesions occurred in over half of both groups of participants. During the treatment phase, the swing traction group attended hand therapy an average of 13.3 times, and the no-traction group attended 11.7 times. Average costs for swing traction were less than for surgical fixation with no-traction.

DISCUSSION

The significantly different range of motion found in our study did not translate to better DASH scores. The DASH is designed to measure global upper limb physical functioning and symptoms, but lacks sensitivity in populations with finger injuries.

CONCLUSIONS

Patients treated with the swing traction protocol had greater range of motion in the finger, however this did not translate to improved patient ratings of function, pain or satisfaction. A basic cost comparison indicated that swing traction may be less expensive than other forms of surgical repair.

LEVEL OF EVIDENCE

3.

Functional Outcomes Following Pilon Fractures of the Middle Phalanx Managed with the Ligamentotaxor External Fixator

BACKGROUND

The surgical aims in managing displaced intra-articular fractures of the base of the middle phalanx include early joint reduction, maintaining congruence and early mobilization. Achieving this can be a challenge. However dynamic external fixators offer a solution. The study aim was to evaluate the use and outcomes of the Ligamentotaxor external fixator in patients with such injuries.

METHODS

A total of 12 patients were managed with this device and outcomes were assessed. All patients reached clinical and radiological union.

RESULTS

An average range of movement to the proximal interphalangeal joint of 63° was noted along with an average end of care-cycle quick-DASH score of 9.1. Two patients developed pin-site infections.

CONCLUSIONS

The outcomes seen support the use of the Ligamentotaxor in the management of middle phalanx intra-articular fractures. It is simple to apply, potentially avoids the secondary complications of open reduction and gives reproducible results. However judicious patient selection is advised.

Hemi-hamate arthroplasty versus transarticular Kirschner wire fixation for unstable dorsal fracture-dislocation of the proximal interphalangeal joint in the hand

Following the introduction of the hemi-hamate arthroplasty (HHA) technique to our unit, we sought to evaluate the early clinical outcomes achieved with this method of fixation and compare these with simple trans-articular Kirschner wire (K-wire) fixation for dorsal fracture dislocations (DFD) of the proximal interphalangeal joint (PIPJ). Ninteen patients underwent fixation of these injuries with either K-wire fixation (12/19) or hemi-hamate bone grafting (7/19) between 2005 and 2011. At a mean follow-up of 14 weeks median arc of movement at the PIPJ was 65° (range 31° to 108°) following HHA and 56° (range 9° to 85°) (p = 0.82) following temporary transarticular K-wire fixation. Median fixed flexion deformity (FFD) was 20° and 15° for hemi-hamate bone grafting and K-wire fixation respectively. Based upon our findings, transarticular K-wire fixation produced equivalent outcomes to HHA for unstable DFD of the PIPJ in the hand.

Pins and rubber band traction for treatment of comminuted intra-articular fractures in the hand

PURPOSE

To determine the efficacy of pins and rubber band traction for treatment of comminuted intra-articular fractures in the hand.

METHODS

We performed a retrospective study from 1994 to 2013 to evaluate 33 patients in whom pins and rubber band traction was employed. We clinically evaluated the active range of motion of the affected fingers after surgery. Eleven of the 33 fractures were at the proximal interphalangeal joint, 10 at the distal interphalangeal joint, 5 at the thumb interphalangeal joint, and 2 at the metacarpophalangeal joint of the thumb. The remaining 5 patients had complex fracture-dislocation of the proximal interphalangeal joints.

RESULTS

The mean follow-up period was 24 months. The average active motion of the metacarpophalangeal joints of the fingers was 91° (range, extension 0°-10°/flexion 85°-90°), proximal interphalangeal joints was 92° (range, extension/flexion 0°-10°/85°-100°), and distal interphalangeal joints was 73° (range, extension/flexion 0°-10°/60°-80°). The overall average of all active motion of the injured fingers except thumbs was 255° (range, 240°-270°). The average active motion of the of the thumb metacarpophalangeal joint was 56° (range, extension 5°-10°/flexion 50°-55°), and interphalangeal joint was 74° (range, extension 0°-10°/flexion 75°-80°). The average of active motion of the injured thumb metacarpal and interphalangeal joints combined was 130° (range, 125°-135°).

CONCLUSIONS

Pins and rubber band traction is a treatment option for comminuted displaced intra-articular fractures of the digits that offers satisfactory clinical results.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

Treatment of intraarticular middle phalanx fractures using the Ligamentotaxor®

BACKGROUND

We evaluated the outcome of intraarticular middle phalanx fractures after dynamic treatment with the Ligamentotaxor® system.

MATERIALS AND METHODS

Ten consecutive patients (seven male, three female; mean age 52 years) with intraarticular middle phalanx fractures were treated with the Ligamentotaxor® between 2009 and 2011. Proximal interphalangeal joint mobility, grip strength and 'Disabilities of the Arm, Shoulder and Hand' (DASH) score were evaluated in a 15-month follow-up. The reconstitution of the intraarticular space was measured immediately after trauma, at 6 weeks and at 15 months by radiograph control. The severity of the trauma was classified according to AO.

RESULTS

We found B1 30 %, C1 (Seno I + II) 50 % and C3 (Seno III-V) 20 %. In 60 % of the cases, fractures were localized on the middle base of the fifth digit, in 20 % on the third digit and in 20 % on the index finger. The dynamic treatment lasted 7 weeks; patients were exposed to full workload after 9 weeks. The mean flexion mobility after 15 months reached 73° (range 60-100°), and the extension deficit was 13° (range 0-20°) on average. Grip strength attained 71.3 % (range 60-87 %) of the contralateral side. Initial x-ray after trauma compared to the x-ray after 15 months showed an intraarticular space reconstitution average of 0.5 mm (range 0.1-0.9 mm) anterior-posterior and 0.6 mm (range 0.1-1 mm) lateral. Patients evaluated their outcome with an average of 14.6 points (range 3.3-26.7) using the DASH score.

CONCLUSION

Good results can be obtained with the Ligamentotaxor®. We recommend it for the dynamic treatment of intraarticular middle phalanx finger fractures. Larger series and long-term results are needed.

Hand-based swing traction splinting for intra-articular proximal interphalangeal joint fractures

Introduction

Acute intra-articular fractures of the proximal interphalangeal joint have always presented as a difficult injury to manage for the treating surgeon and therapist. Traction management enabling ligamentotaxis and motion is a popular method to manage these injuries. This case series presents the design and results of hand-based swing traction splinting which is less cumbersome for patients than other forms of traction splinting.

Methods

Five patients presenting with intra-articular proximal interphalangeal joint fractures underwent surgery whereby a transverse K-wire was inserted across the middle phalanx. The treating Occupational Therapist fabricated a hand-based swing traction splint to provide a distraction force from the K-wire to the splint. Range of motion and patient satisfaction were the primary outcome measures.

Results

All five patients reported satisfaction with their hand function following therapy involving swing traction splinting. Furthermore, range of motion was comparable to other forms of traction management reported in the literature with an 88° mean arc of motion at the proximal interphalangeal joint.

Conclusion

This case series demonstrates that hand-based swing traction splinting is a viable treatment option for the management of intra-articular proximal interphalangeal joint fractures. With similar outcomes to other forms of distraction that enable early movement, such as the pins and rubber traction system, this design is an alternative. The less cumbersome splint design is the main advantage over other splinting methods that apply distraction whilst also enabling early motion.

A percutaneous technique to treat unstable dorsal fracture-dislocations of the proximal interphalangeal joint

PURPOSE

Unstable dorsal fracture-dislocations of the proximal interphalangeal (PIP) joint are complex injuries that are difficult to treat and usually require operative fixation. There are a number of surgical techniques for treating these injuries but none has emerged as superior. The purposes of this study were to describe a simple percutaneous technique to treat unstable dorsal fracture-dislocations of the PIP joint and to report short-term postoperative results.

METHODS

We treated 6 patients with unstable dorsal fracture-dislocations of the PIP joint with the technique of closed reduction, percutaneous fracture reduction, and pinning via a volar approach and also with dorsal block pinning. We collected information on postoperative stability, range of motion at the PIP and distal interphalangeal joints, and radiographic outcomes. We also administered the Disabilities of the Arm, Shoulder, and Hand and visual analog pain scale questionnaires.

RESULTS

At a mean follow-up of 18 months (range, 6-57 mo), there were no subluxation or dislocation events. The mean range of motion was from 4° of extension to 93° of flexion at the PIP joint and from 1° of extension to 73° of flexion at the distal interphalangeal joint. Radiographic analysis revealed a concentric reduction and union in all cases. The mean Disabilities of the Arm, Shoulder, and Hand score was 8 and the mean visual analog pain score was 1.4 out of 10. There were no minor or major complications.

CONCLUSIONS

This percutaneous technique reliably restored stability to the PIP joint, allowed for concentric reduction of the joint, and produced excellent radiographic and clinical outcomes. The postoperative management course with this technique is critical to the outcome.

Pigtail coil modification of distal tips of Suzuki pins and rubbers system

Suzuki et al described the pins and rubbers capsuloligamentotaxis traction system for the treatment of comminuted intraarticular fractures and fracture-dislocations involving the proximal interphalangeal joint, the distal interphalangeal joint, and trapezium. Majumder et al later detailed the lessons learned from their management of patients with complex intraarticular fractures of the base of the middle phalanges of the fingers. The researchers found that the most common patient complaint was that the protruding ends of the device caught on clothing. However, the researchers did not suggest how to resolve this problem. We describe a modification of the distal tips of the Suzuki pins and rubbers axial traction pin, from the S- (or double-opposing U-) shaped morphology of the hook, to a pigtail coil: We propose that this modification has a number of advantages, being simpler, more secure, more adjustable, and safer.

Interphalangeal traction for comminuted fracture of middle phalanx fingers: case report

We report an interphalangeal traction system through capsuloligamentotaxis for the treatment of comminuted fracture of the middle phalanx. The interphalangeal (IP) traction system inserts a K-wire at the proximal and distal phalanx. The difference between our IP traction system compared with the modified Suzuki frame method is that distal IP and proximal IP joints are synchronously distracted in the fixator, and bony continuity and articular integrity are restored.

Pins and rubber traction system for intra-articular proximal interphalangeal joint fractures revisited

The Pins and Rubber Traction System (PRTS) can be used to treat proximal interphalangeal intra-articular fractures. Our experience is that outcomes are not always excellent and that many patients have reduced joint function or residual deformities. The aim of this study was to evaluate the reasons behind the poorer outcomes of some of the patients treated with this system. A retrospective clinical and radiological evaluation was performed on 15 patients after a minimum of 2 years' follow-up. The mean interphalangeal joint flexion range was 66 degrees (range 0-100) in our series. The review of the literature shows an average active interphalangeal joint flexion of 78 degrees (range 64-95). Reasons for this difference include preoperative delay, technical deficiencies, the learning curve, a lack in postoperative physiotherapy and degenerative changes due to the longer follow-up. Although the Pins and Rubber Traction System seems a simple procedure, a learning curve is necessary to avoid pitfalls.

The hand arc--a hand-based splint design for intraarticular fractures

When a fracture of the finger is intraarticular in nature, it adds another dimension to the rehabilitation program, as the joint space is affected and subsequently gaining motion can be a challenge. Traction splinting has been reported in the literature as one way to manage intraarticular finger fractures in an attempt to provide stability while allowing motion. These authors have modified some of the original traction splints to create a hand-based version to use for the patients with an intraarticular, proximal interphalangeal joint fracture.