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Background and purpose Optimal treatment for distal radius fractures remains controversial, with a significant number of fractures resulting in complications and long-term morbidity. We investigated patient injury claims related to distal radius fractures to detect the critical steps in the treatment leading to avoidable adverse eventsPatients and methods We analyzed all compensated patient injury claims in Finland between 2007 and 2011. Claims were collected from the Patient Insurance Center's (PIC) nationwide claim register. Patients of all ages were included. Each claim decision, original patient records, and radiographs related to treatment were reviewed.Results During the study period, the PIC received 584 claims regarding distal radius fractures, of which 208 (36%) were compensated. Pain and impaired wrist function were the most common subjective reasons to file claims among compensated patients. In 66/208 patients, more than 1 adverse event leading to patient injury was detected. The detected adverse events could be divided into 3 main groups: diagnostic errors (36%, n = 103), decision/planning errors (30%, n = 87), and insufficient technical execution (32%, n = 91). Issues related to malalignment were the main concerns in each group. Diagnostic errors were often related to incorrect assessment of the fracture (re)displacement (75%, n = 78). All of the decision-making errors concerned physicians' decisions to accept unsatisfactory fracture alignment. The most common technical error was insufficient reduction (29%, n = 26).Interpretation We identified avoidable adverse events behind patient injuries related to distal radius fracture treatment. This study will help physicians to recognize the critical steps in the treatment of this common fracture and enhance patient safety.

Background and Aims: Whether or not radiological results correlate with functional outcome after operative treatment of distal radius fractures still remains controversial. We carried out a retrospective study to analyse the long-term (6.5 year) outcome of radius fractures treated by means of surgery in our hospital. The aim of the study was to explore whether step-off on radius joint surface, shortening of the radius versus ulnar height and dorsal or volar tilt of the radius correlate with long-term Patient-Rated Wrist Evaluation or Quick Disability of the Arm, Shoulder and Hand scores among 100 consecutive patients after surgical treatment. Materials and Methods: Of these, 60 patients (63 wrists) participated. They were examined radiologically, clinically and by means of a questionnaire. Results: Shortening of the radius correlated significantly with both Patient-Rated Wrist Evaluation and Quick Disability of the Arm, Shoulder and Hand scores. Step-off on the radius joint surface correlated significantly with worse PRWE scores, with no difference in Quick Disability of the Arm, Shoulder and Hand evaluation. Dorsal or volar tilt showed no statistical correlation (though it was mild in this group). The age of the patients (below 60 years vs 60 years or above) did not affect the PRWE or Quick Disability of the Arm, Shoulder and Hand results. Conclusion: Our results indicate that when it comes to conserving the radial height and congruence of the joint surface, the more precise the reduction of the fracture achieved by surgical means, the better the functional outcome.

A retrospective study of drug abuse patients who developed arterial and venous complications in the upper extremity during 2002–2006 was performed. Twenty-two patients were admitted to hospital on 24 occasions over this period for treatment by our hand clinic. The drug most frequently causing complications was midazolam. The predominant clinical findings were increasing pain and loss of sensitivity in the hand, followed by oedema, cyanosis and marbling of the skin. Treatments included brachial block anaesthesia, low molecular weight heparin, embolectomy and fasciotomies. Despite these measures, amputations, mainly of the fingertips, were necessary in 15 patients. Complications in the upper extremity after self-injection by drug addicts are increasing; information and preventive procedures to minimize these complications are important and demanding tasks for health care bodies.

We retrospectively studied the epidemiology of adult patients admitted for possible replantation or revascularisation of an injured upper extremity during the period June 2003 to May 2008. A total of 121 patients were admitted (71 graded severe), mean 24 (14 graded severe), being admitted each year. The annual rate of amputation injuries in the referral area of 1.5 million was 1.5/100 000 and for severe amputation injuries 0.9/100 000. Most injuries occurred in patients aged 41–50. Fifty-eight patients had the accident during working hours (36 severe), and 62 during leisure time (34 severe). The survival rate for subtotal amputations was 77% and for total amputations 55%. Of 15 further vascularisation procedures, two succeeded at the metacarpal level. Most of the accidents occurred during wood-processing with circular saws or powered wood splitters. More efforts should focus on preventing such injuries.

Jumper's knee is a common problem in athletes participating in sports that involve running and jumping. Typically activity related pain is felt at the proximal insertion of the patellar tendon. Symptoms and findings in the more distal parts of the patellar tendon are unusual. All of the patients in this retrospective study were active athletes suffering from distal patellar tendinosis. There were 19 men and four women. The mean age of the patients was 24 years (range 12-32). All of the patients were operated on after conservative treatment lasting for an average of 23 months had failed. After a mean postoperative follow-up of 42 months 21 of the knees were rated good meaning that the athlete had returned to the prior level of activity without any symptoms. In three knees the result was fair as the patients benefited from the operation but there were some remaining symptoms. No poor results were reported. All patients were able to return to their previous level of sports 8-12 weeks after surgery. Operative treatment seems to give good results in most cases after unsuccessful conservative treatment of the unusual distal patellar tendinosis in athletes.

Introduction: This study evaluates the results of the new surgical treatment of complete acromioclavicular (ac) dislocations using coracoclavicular (cc) fixation with a shape memory metal C-hook implant. Materials and methods: Fifteen patients were prospectively analyzed. They all had a Tossy III ac dislocation due to trauma. The ac ligament was reinserted using a surgical bone anchor, and the position of the joint was restored by fixing it with a C-hook. After 3 months the C-hook was removed. Functional status, symptom severity, X-rays and patient satisfaction were analyzed during clinical control visits. The follow-up time was 1 year. Results: At 12 weeks, full shoulder function had been achieved by 93% of the patients. The final control visit showed full recovery of active ROM in all patients. Two patients had mild pain during certain movements. X-rays showed the precise anatomical position of ac joint with no statistically significant differences compared to the healthy side. Patient contentment was excellent in 14 cases and satisfactory in one case. The average sick-leave was 58 days, including the removal operation. Minor osteolysis of the clavicle was noticed in two patients. Conclusion: The new C-hook implant provides accurate anatomical reduction, conserves the articular surfaces and enables fast functional recovery with excellent patient contentment. Technically, the implant is easy to use. Based on this study, the C-hook presents a reliable novel treatment option in surgical ac repair.

Bone morphogenetic protein (BMP) has been shown to induce bone formation and union in long bone defects and nonunions. There are, however, no previous reports of BMP being used for ulnar nonunions. We report on five cases of resistant ulnar nonunions treated with a composite implant consisting of a biocoral frame, collagen carrier, and bovine BMP. Four diaphyseal and one olecranon ulnar nonunions were treated using BMP/coral implant combined with internal fixation. Additional autografting was used in three cases. All of the cases were challenging in their own ways: Three of the patients had been operated on earlier for their nonunion without success, one had a 40 mm bone loss, and one had a 9-month-old untreated olecranon fracture. After excision of the sclerotic surfaces of the nonunion, the gap was filled with autograft and a composite implant containing BMP. Fixation was done with a compression plate in the diaphyseal nonunions and with a tension band in the olecranon nonunion. Solid union was achieved in all five cases. No infections or other adverse effects were encountered. These preliminary results suggest that BMP-containing implants might be a feasible alternative or superior to autografting in the treatment of resistant ulnar nonunions.

Bioabsorbable implants offer an attractive alternative to metallic implants to stabilize small bone fractures in the hand. Self-reinforced bioabsorbable miniplating for metacarpal fractures was studied in bones from cadavers and compared with standard metallic fixation methods. One hundred twelve fresh-frozen metacarpals from humans had three-point bending and torsional loading after transverse osteotomy followed by fixation using seven methods: (1) dorsal and (2) dorsolateral 2-mm self-reinforced polylactide-polyglycolide 80/20 plating, (3) dorsal and (4) dorsolateral 2-mm self-reinforced poly-L/DL-lactide 70/30 plating, (5) dorsal 1.7-mm titanium plating, (6) dorsal 2.3-mm titanium plating, and (7) crossed 1.25-mm Kirschner wires. In apex dorsal and palmar bending, dorsal self-reinforced polylactide-polyglycolide and poly-L/DL-lactide plates provided stability comparable with dorsal titanium 1.7-mm plating. When the bioabsorbable plates were applied dorsolaterally, apex palmar rigidity was increased and apex dorsal rigidity was decreased. Bioabsorbable platings resulted in higher torsional rigidity than 1.7-mm titanium plating and in failure torque comparable with 2.3-mm titanium plating. Low-profile selfreinforced polylactide-polyglycolide and poly-L/DL-lactide miniplates provide satisfactory biomechanical stability for metacarpal fixation. These findings suggest that bioabsorbable miniplating can be used safely in the clinical stabilization of metacarpal and phalangeal fractures.

Bioabsorbable fixation devices offer a useful option to treat small bone fractures of the hand if the prerequisite of reliable and stable osteofixation is met. We compared the stabilities of various bioabsorbable fixation devices with metallic fixation devices by using an oblique osteotomy model in radial to ulnar orientation. The 1.5-mm, self-reinforced, poly-L-lactide (SR-PLLA) pins provided fixation rigidity comparable with 1.5-mm K-wires in dorsal and palmar apex bending, whereas in lateral apex bending and in torsion the rigidity was equal to that of 1.25-mm K-wires. The 2.0-mm, self-reinforced, poly-L/DL-lactide (SR-P(L/DL)LA) 70/30 screws provided rigidity comparable with that of 1.5-mm K-wires in all testing modes. The bioabsorbable plate considerably enhanced the bending stabilities of the fixation system, but a single interfragmentary screw provided only limited rotational rigidity. The results show that by using ultra-high strength self-reinforced implants adequate fixation stability for hand fracture fixation can be achieved.

Background and Aims:Bone morphogenetic protein (BMP) has been shown to induce bone formation and union in long bone defects and nonunions. We report a preliminary study of a composite implant consisting of a biocoral frame, carrier collagen and bovine BMP in the treatment of scaphoid nonunions.Material and Methods:Two proximal and eight waist area scaphoid nonunions were treated using BMP/coral implant combined with either the Matti-Russe procedure (2 cases) or an interpositional bone graft fixed with screws or compression fixation pins (8 cases). In two cases only a one piece BMP/coral implant was used as an interpositional graft and in other cases interpositional autograft was used with granular BMP/coral implant placed between the fragments and the graft.Results and Conclusions:Only two wrists resulted in complete union. These preliminary results suggest that composite implant of BMP, as used in the present study, may not solve the problems encountered in the treatment of scaphoid nonunions. Poor vascular conditions in scaphoid may not provide enough mandatory osteogenic cells for BMP to function properly. In avascular conditions coral does not resorb edequately and implants may also work as a sequester between the bone graft and the scaphoid bone and therefore actually inhibit the healing process.

We compared decompression of the posterior interosseous nerve (PIN) and lengthening of the distal tendon of the extensor carpi radialis brevis (ECRB) for treatment of tennis elbow in a randomised trial of 28 patients. Fourteen underwent decompression of PIN and 14, lengthening of ERCB. The groups did not differ significantly with regard to age, sex and work activities. The average duration of preoperative symptoms was 23 months. The PIN was exposed in the groove between the brachioradialis and brachialis muscles and decompressed at the arcade of Frohse by means of a 1-2 cm incision through the supinator muscle. The ECRB tendon was lengthened by Z-plasty at the dorsilateral aspect of the forearm. No postoperative complications occurred. The outcome after the primary operation was successful in 50% of the PIN group and in 43% of the ECRB group. Four of the 5 patients with a poor outcome were reoperated in the former group and 3 in the latter. The overall outcome after a mean follow-up of 31 months after the primary operation was successful in 60% of the cases.

Health technology assessment focuses on clinical effectiveness and cost efficiency, but achieving these goals does not guarantee the adoption of a new technology if the incentives of individual decision makers (payers, patients, providers) are not aligned. This study creates a framework for the analysis of the adoption phase. The framework is tested in the case of a new, non-invasive treatment for Dupuytren's disease. The framework is developed based on existing operations management theories. The cost-benefit analysis in the case study utilises information on the Finnish healthcare system, detailed data on the process of the surgical and treatment for Dupuytren's from seven hospital districts and expert interviews on the non-surgical treatment process. The analysis suggests that the new technology will most likely be adopted, but it also shows that there are potential hindrances. The study shows that it is important to consider the incentives of individual operators within the healthcare system.

The effect of glycosaminoglycan polysulfate (GAGPS) on damaged patellar cartilage and clinical symptoms of chondromalacia was studied on 31 patients in a placebo-controlled double-blind trial. The clinical diagnosis was confirmed by arthroscopy. The treatment consisted of 12 intramuscular injections of either GAGPS or placebo, and the patients were followed for 1 year. In 26 patients, rearthroscopy was performed at the 1-year follow-up. Comparison of the two arthroscopies showed improvement in 8/13 patients in the GAGPS group compared with 3/13 in the placebo group. The clinical parameters correlated well with the results of the arthroscopies. The results support the use of GAGPS for chondromalacia patellae.

Background and Aims:Ruptures of the distal part of the biceps brachii tendon are rare. The diagnosis is often delayed and only late repair can be considered. In this study, the recovery of muscle strength after late repair of the distal biceps brachii tendon was evaluated.Materials and Methods:Sixteen patients with a ruptured distal biceps brachii tendon were analysed. The mean delay from the primary trauma to the operation was 35 weeks. The tendon was anatomically re-attached with bone anchors. In three cases a tendon graft was needed. The operated arms were immobilised postoperatively for four weeks, after which mobilisation was allowed. Maximal static flexion and supination strength was measured after an average follow-up time of 124 weeks by using a computer-based isokinetic dynamometer.Results:Patient satisfaction and overall muscle strength recovery were very good. Compared to the non-operated side, average flexion strength recovery was 90% and corresponding recovery of supination strength 78%. Weakness on supination remained in the cases where a tendon graft was used. One patient needed a re-operation for a re-rupture. There were three cases of transient paresthesia of the cutaneous nerve. All patients resumed their previous work.Conclusion:Late anatomical repair of the biceps brachii tendon restores very good flexion and moderate supination strength. This operation should always be considered when the primary diagnosis is delayed.

Purpose A variety of implants have been used for the fixation of scaphoid fractures, but we have found no reports on bioabsorbable screws used for this purpose. We report 6 cases of scaphoid fractures treated with bioabsorbable screws. Methods Six patients with scaphoid waist region fractures (3) and nonunions (3) treated using bioabsorbable self-reinforced poly-L-lactide screws. Interposition of a bone graft from the iliac crest was used in 4 cases. Immobilization in a short arm-thumb spica cast was applied after surgery for an average of 8 weeks. Results Solid union was achieved in 5 cases. Using the Mayo modified Green-O’Brien wrist score, we graded the results as excellent in 1 case, good in 4 cases, and poor in the single case of nonunion. Conclusions These results suggest that bioabsorbable self-reinforced poly- l -lactide screws might offer an alternative in the fixation of scaphoid fractures and nonunions in the future, provided that cannulated screws of appropriate size will be available.

Although coracoclavicular fixation is currently popular for type III acromioclavicular (AC) dislocations, a surgical gold standard is lacking. The purpose of this study was to evaluate the preliminary outcome of surgical treatment of complete AC dislocations with a new nitinol C hook implant. When the implant is cooled (5 degrees C), it softens enough to be easily inserted under the coracoid process with a hole drilled in the clavicle. Cooling is induced with ice water. When the implant reaches body temperature, it hardens and anatomic reduction is achieved. Patients with acute type III AC dislocations were prospectively evaluated. The AC ligament was reinserted with the use of a bone anchor, and the position of the joint was restored by fixing it with a new C hook. Clinical and radiographic control checkups were carried out at 3, 8, and 12 weeks and 2 years postoperatively. Certain patient-related variables, functional status, symptom severity, and patient satisfaction were assessed. By 12 weeks, all patients had achieved full functional status. Radiographs showed accurate anatomic reduction. Overall subjective satisfaction was very good in all cases. No complications or implant failures occurred. On the basis of this pilot study, the new C hook implant provides secure anatomic reduction with very good functional recovery and patient satisfaction. The main benefit of the implant is the ease of insertion. It preserves the articular surfaces and allows slight movement of the AC joint during abduction of the arm. The C hook implant is a new surgical concept with potentially better patient recovery.

Perivascular sympathectomy, which has been used for vasospastic disorders of the hands, was examined in experimental models. Perivascular sympathectomy was performed on the central ear vessels and forepaw metacarpal vessels of the rabbit and on the common digital vessels in the monkey. The effects on adrenergic nerves were studied using a glyoxylic acid-induced fluorescence method. Adrenergic nerves were removed only at the site of the perivascular sympathectomy and the distal adrenergic innervation appeared normal. Because the distal sympathetic nerves appeared normal after the operation, it should rather be called adventitectomy and we feel its clinical effects should be reevaluated. © 1994 Wiley-Liss, Inc.

Forty-five patients were reviewed on average 5.7 years after corrective osteotomy for symptomatic distal radius malunion. Restoration of anatomy and function was assessed compared with the contralateral wrist. It was found that osteotomy of the distal radius alone did not completely restore normal anatomy and relieve symptoms, and in several cases a second operation was needed. Osteoarthritic changes in the radiocarpal and radioulnar joints were common, and they correlated with restriction in range of motion, but not with pain. Range of motion and grip power were reduced compared to the unaffected hand, but only loss of supination and ulnar deviation correlated with an unsatisfactory subjective result. The result was good or satisfactory in 33 of the 45 patients. We conclude that reconstructive procedures in patients with distal radius malunion may not completely restore normal function, and every effort should therefore be made to prevent malunion in the treatment of distal radius fractures.

The purpose of this study was to evaluate the role of the metaphyseal cancellous bone defect size in secondary dislocation of Colles' fracture. Thirty-five patients with a dislocated Colles' fracture were examined by computed tomography (CT) for metaphyseal bone defects. The size of the defect was assessed and related to the surface area of the cross-section of the distal radius at the site of the defect. The relative size of the defect correlated with the severity of dorsal angulation of the fracture but not with the shortening of the radius seen after cast immobilization. We concluded that secondary displacement of the distal radius is partly mediated through the metaphyseal cancellous bone defect, and to prevent malunion in dorsal angulation, operative treatment or possibly filling of the defect should be considered even as early as during primary reduction if a large defect is suspected.

Thirty-eight thumbs in 35 patients with painful osteoarthritis of the thumb basal joint were treated by trapezium excision and abductor pollicis longus tendon interposition arthroplasty. Long-term results were obtained from all patients by subjective evaluation and 29 patients were re-examined 1 to 11 years after surgery (mean, 6 years). The overall result was excellent or good in 79% of the cases and 76% of the patients reported good or excellent pain relief. In 6 cases (16%) surgery provided no improvement. The range of shortening of the first ray was from 2 to 10 mm (mean, 7 mm). Grip and pinch strengths were measured, but the results were variable and consequently not informative. On the basis of our results we recommend abductor pollicis longus tendon interposition arthroplasty for the treatment of osteoarthritis of the thumb basal joint.

A calcaneal desmoplastic fibroma in a 24-year-old woman had previously been treated with repeated curettage and bone grafting. Because of a larger recurrence a microvascular bone reconstruction was carried out using an osteofascial radial forearm flap. She could walk without pain in one year. It has not recurred during a five-year follow-up period.

Thirty-nine patients with Kienböck’s disease underwent silicone replacement arthroplasty between 1979 and 1994. The patients were followed-up from 1 to 8 years (mean, 8 years). Sixteen prostheses (41%) have had to be removed, from 1 to 18 years postoperatively (mean, 5.6 years), 15 of them because of pain and silicone synovitis or cysts. It appears that silicone synovitis with cyst formation is an inevitable problem in the wrist after silicone replacement arthroplasty of the lunate, and this procedure is only a temporary solution for Kienböck’s disease.

Interobserver reliability of the AO system of classification of fractures of the distal radius was assessed using plain radiographs and CT. Five observers classified 30 Colles’-type fractures using only plain radiographs; two months later they were reclassified using CT in addition. Interobserver reliability was poor in both series when detailed classification was used. By reducing the categories to five, interobserver reliability was slightly improved, but was still poor. When only two AO types were used, the reliability was moderate using plain radiographs and good to excellent with the addition of CT. The use of CT as well as plain radiographs brings interobserver reliability to a good level in assessment of the presence or absence of articular involvement, but is otherwise of minor value in improving the interobserver reliability of the AO system of classification of fractures of the distal radius.

We retrospectively assessed hand and forearm symptoms of 652 patients with a Colles' fracture, 5 years after the fracture, using a questionnaire. the contralateral forearm, which was free of major injuries or illnesses, was used as control. Forearm and hand symptoms were common and only one quarter of the fractured forearms were completely free of symptoms at the time of review, whereas four fifths of the control forearms had no symptoms. Nearly half of the patients complained of impairment in various activities and 8% had had to give up leisure activities or make special arrangements at work. Demographic, and most of the fracture-related factors, were not associated with the symptoms. Neither AO nor Frykman's radiographic classifications of the primary fracture were of any use for predicting the clinical outcome.

We operated on 28 patients with partial rupture of the quadriceps tendon. A simple excision of the scar tissue and closure of the tendon gave an excellent or good result in 25 patients. Ultrasonography was useful to confirm the diagnosis.

Fifty free flap operations in 49 patients were performed in Oulu University Central Hospital during a three year period. The patients' ages ranged from 15 to 83 years; mean 41 years. The indication for the operation was malignant tumor in 19 cases, benign tumor in one case, trauma in 28 cases and congenital anomaly in 2 cases. The radial forearm flap was used in 36 cases; latissimus dorsi in 7 cases; lateral arm, rectus abdominis, and fibula in two cases; and second toe in one case. Forty-nine of the fifty flaps were successful (98%); two venous thromboses were successfully revised. Starting microsurgery in a new unit is demanding but also rewarding due to the good results.

Arthrography was used for diagnosis of ruptures of lateral ligaments in 589 acutely injured ankles that were treated operatively. The accuracy of the method was tested comparing the findings of arthrography with those at operation. We found arthrography to be almost 100% reliable for diagnosing a fresh anterior talofibular ligament rupture. The best criterion for detecting cal caneofibular ligament rupture was filling of the peroneal tendon sheath with contrast medium. Leakage below and behind the lateral malleolus, when present with peroneal tendon sheath filling, confirms the diagnosis of calcaneofibular ligament rupture, but these findings without peroneal tendon sheath filling are too rare to base the diagnosis on them alone.

We examined 188 consecutive patients, each of whom had an acute ankle sprain, using clinical stability as sessment, stress radiographs, and arthrography to compare the reliability of these methods used in diag nosing lateral ligament ruptures of the ankle. Sixty-six of the ankles were treated operatively. Arthrography accurately detected ligament damage in all of the pa tients with this injury and revealed the extent of the injury in about 85%, whereas clinical examination and stress radiographs detected only about half of the injuries. The injuries and the results of these two meth ods were often controversial, as our study will show.

Perivascular sympathectomy has been thought to cause distal adrenergic denervation. We performed perivascular sympathectomy for a distance of 1 cm. on two common digital arteries in the right hands of two anaesthetised Macaca arctoides monkeys. Four days later, samples were taken for glyoxylic acid-induced fluorescence examination of the operated and opposite control hand. The distal adrenergic nerves were morphologically normal in appearance after the perivascular sympathectomy. The operation should perhaps be called adventitectomy rather than perivascular sympathectomy and its positive effects may be due to the loss of adventitial support for the vasospastic arteries rather than adrenergic denervation.

Two patients presented with loss of skin in the Achilles tendon region, which is difficult to repair satisfactorily. They were both treated with microvascular flaps, one of which was taken from the lateral arm, and the other from the radial forearm. Both methods gave good functional results.

The purpose of this study was to examine the long term functional results following free tissue coverage in 4 patients who developed wound complications after surgical treatment of partial or total Achilles tendon rupture. Between 1987 and 1993, 3 radial forearm flaps and 1 lateral arm flap were used. Two Achilles tendons were reinforced, 1 with palmaris longus tendon, and 1 with extensor carpi radialis and palmaris longus tendons. The patients were seen during followup an average of 3.1 years after the reconstruction. All patients were able to return to their preoperative level of activity within a year, and the aesthetic outcome was good in all cases. Isometric and isokinetic calf muscle performance was evaluated with a Lido Multi Joint II dynamometer, which showed the mean of isometric test values in 3 patients to be greater than 90% of that of the normal unaffected side, and probably abnormal (80%) in 1 patient. The mean isometric values obtained in 3 ankle positions, 20 degrees plantar flexion, neutral, and 10 degrees dorsiflexion, were 114%, 104%, and 94%, respectively. Isokinetic peak torque values were normal in 3 patients at a velocity of 30 degrees per second, and in 2 at 90 degrees per second. The mean peak torque value was 90% of normal at both angle velocities. The cross sectional area of the calf muscle was greater than 90% of the normal unaffected side. Ultrasonography indicated that the diameters of 2 reinforced tendons were larger than those on the control sides. Posterior peritendinous fibrosis was found in the upper corner of the scar in 2 patients.