Flexion contracture sometimes occurs after primary total knee arthroplasty (TKA). In most cases, flexion contracture after TKA gradually improves over time. However, some severe cases require manipulation or revision surgery.

We searched our clinical database for patients who underwent primary TKA at our institution between 2008 and 2015. By reviewing patient records, we identified three patients (one man and two women) with a severe flexion contracture 30° after primary TKA. Although all three patients gained more than 120° in flexion intraoperatively, they developed flexion contracture after discharge from our institution. We performed manipulation under anaesthesia (MUA) for all three cases several months later. The two female patients had improved range of motion (ROM) right after the manipulation. However, one of them regained flexion contracture 1 year after the MUA.

We report the details of the male patient, who had the worst flexion contracture (−60°). An 80-year-old man had right knee osteoarthritis. His history indicated only hypertension. The right knee ROM before the TKA was −20° extension and 135° flexion. His radiographs showed advanced-stage osteoarthritis. We performed cemented TKA (posterior stabiliser design). Three weeks after the operation, his right knee pain improved. The right knee ROM was −10° extension and 100° flexion just before discharge. However, he returned to our institution because of right knee pain and flexion contracture 31 months after the surgery. The flexion contracture gradually worsened without any trauma. When he returned, the right knee ROM was −60° extension and 135° flexion. Manipulation under general anaesthesia was not effective. Therefore, we performed revision TKA immediately. We excised the scar tissue of the posterior knee joint. Then, we shortened the distal femoral end by 1 cm and reduced the size of the femoral component. After the operation, the right knee ROM was improved to −10° flexion and 130° extension.

The reported prevalence of stiffness after TKA was from 1.3% to 13%. Although the deleterious effects of persistent flexion contractures > 15° is well understood, whether they resolve with time or need surgical intervention is controversial. MUA is generally the initial option for patients with flexion contractures, with the possibility of some improvement. If severe flexion contracture remains after manipulation, revision TKA, which may be considered as a useful treatment option, should be considered.

Introduction

Pelvic osteotomy such as Chiari osteotomy and rotational acetabular osteotomy (RAO) have been used successfully in patients with developmental dysplasia of the hip (DDH). However, some patients are forced to undergo total hip arthroplasty (THA) because of the progression of osteoarthritis. THA after pelvic osteotomy is thought to be more difficult because of altered anatomy of the pelvis. We compared six THAs done in dysplastic hips after previous pelvic osteotomy between 2008 and 2015 with a well-matched control group of 20 primary procedures done during the same period.

Purpose

Proximal femoral osteotomy is an attractive joint preservation procedure for osteonecrosis of the femoral head. The purpose of this study was to investigate the cause of failure of proximal femoral osteotomy in patients with osteonecrosis of the femoral head.

We report an intertrochanteric fracture in a patient who had undergone hip arthrodesis 30 years previously. A 53-year-old man was injured in a head-on car crash and was referred to our hospital for treatment. Plain radiographs showed an intertrochanteric fracture of the right proximal femur and deformity of the right hip joint. He had undergone hip arthrodesis surgery 30 years previously at another hospital. Computed tomography scan showed marked atrophy of the gluteus and iliopsoas muscles. He preferred undergoing total hip arthroplasty (THA) to internal fixation. THA was performed using the anterolateral approach with the patient in the supine position as he had undergone hip arthrodesis through the Smith–Petersen approach, and we were concerned about damaging the gluteus muscle and dislocation if we took the posterolateral approach. The femoral head was removed using curved chisels under fluoroscopy. A cementless THA (J Taper stem, Aquala polyethylene liner; Kyocera Medical Corporation, Osaka, Japan) was inserted and fixed appropriately. Full weight-bearing using a walking frame was allowed 2 weeks after the surgery. Six months after the operation, he was able to walk independently and had good range of movement of the hip joint but continued to have weakness in the abductor muscles.

Very few cases of proximal femur fracture in a previously arthrodesed hip have been reported. Manzotti et al. reported a similar case but they performed open reduction and internal fixation. No previous reports in the literature describe THA for intertrochanteric fracture in an arthrodesed hip. The conversion of an arthrodesed hip to THA is technically challenging. It has a high risk of complications such as nerve injuries and hip instability. We were able to treat the patient successfully, but surgeons should carefully decide the treatment method depending on the case.

Introduction: The purpose of this study was to evaluate clinical results of total knee arthroplasty with three different implants for patients with osteoarthritis (OA) and rheumatoid arthritis (RA) in our institution.

Materials and methods: From January 1993 to October 1998, 41 total knee arthroplasties were done at our institution. Clinical assessment was performed preoperatively and at most recent follow-up using the Japan Orthopaedic Association scoring system (JOA score). The Knee Society Radiological Evaluation System was used to evaluate a series of 41 total knee arthroplasties. The population consisted of 41 patients, 37 women and four men, with an average age of 71.8 (55-85) who had total knee arthroplasty, and the average BMI was 24.5 (18.1-36.0). Preoperative diagnoses were osteoarthritis in 25 patients and rheumatoid arthritis in 16 patients. Used implants were Miller-Garante 2 (Zimmer) in 15 knees, KU3 (Kyocera) in seven knees and Nexgen (Zimmer) in 19 knees.

Results: The average preoperative JOA score were 48.0 points and postoperative score were 74 points. Preoperative and postoperative maximum extension was −16.4 ± 10.9° and –2.86 ± 4.9°. Preoperative and postoperative maximum flexion was 105 ± 21.6° and 106 ± 15.0°. On the AP radiographs, the average angulation of the femoral component was 96.9 ± 2.2° and tibial component position was 88.0 ± 2.5°. The lateral radiographs revealed an average femoral component flexion of 3.03 ± 3.9° The average tibial component flexion was 3.53 ± 3.02°. And there was no significant difference in radiographic evaluation among those implants.

Conclusion: In the middle term results, there was a significant correlation between preoperative and postoperative flexion and a significant improvement of maximum extension of the knee after total knee arthroplasty.

Objective: The objective was to evaluate mortality and ambulatory ability for elderly patients over 80 years with a femoral neck fracture treated surgically. A strategy for managing elderly patients with various problems is proposed.

Materials and Methods: From January 1, 1998 to March 31, 1999, 122 patients with femoral neck fractures were treated in our hospital. Sixty patients aged over 80 years were chosen from this series for the present study. The 60 patients included 50 women and 10 men with a mean age of 87.1years (range 80–97years). The fractures included 26 intracapsular and 34 extracapsular fractures. The mean follow-up period was 12.9 months. The patients were classified into three groups according to age: group A (80–84 years old), group B (85–89 years old) and group C (over 90 years old). The following parameters were evaluated: duration between injury and operative treatment, duration of hospital stay, senile dementia, prefracture and postoperative walking abilities, and mortality. Walking ability was graded on a scale of 0–4: 0, free gait; 1, gait with a walking stick; 2, gait with a wheelchair; 3, ability only to walk a few steps; and 4, bedridden.

Results: The rates of regained postoperative walking ability to better than grade 2 were 72.2% (13/18) in group A, 65.2% (15/23) in group B and 84.2% (16/19) in group C. These patients were followed until death or for at least one year. The overall mortality rates were 11.1% (2/18) in group A, 17.4% (4/23) in group B and 10.5% (2/19) in group C.

Conclusion: In cooperation with internists, medical staff and family members, we were able to overcome various problems and achieve good clinical outcomes. Cooperation of family members was needed for the elderly patients to return to where they had lived before the trauma and to improve their quality of life.

Objective: To compare the functional results with the anatomical results of treatment for fractures of the distal end of radius in patients aged over 60 years.

Methods: The results of treatment for fractures of the distal end of radius in 25 elderly patients were evaluated retrospectively. The average age of the patients was 70 years and the average follow-up period was 24 months. Twenty-one fractures were treated by percutaneous pinning, two were treated with plates, and two were treated conservatively. All patients were right-handed. The functional results were evaluated according to the sum of demerit points (Saito, 1983), and the following three parameters were used for evaluation of anatomical results: radial tilt, ulnar variance, and palmar tilt.

Results: The latest follow-up functional end results were excellent in 52 % of the fractures and good in 48%. In the final radiographs, the average radial tilt was 20.5 degrees, ulnar variance was 3.7 mm, and palmar tilt was 2.5 degrees. The values of ulnar variance and palmar tilt were often found to be out of the normal range. Most of the patients had a satisfactory outcome, and the functional results were not correlated with the magnitude of residual deformities. Grip power was the most significant factor related to subjective evaluation. Grip power recovered 75.2 % of uninjured side grip power in patients fractured left hands and 103.4 per cent in patients fractured right hands. This difference was significant (p< 0.05).

Conclusions: A good functional outcome of treatment for fractures of the distal end of radius in elderly patients can be expected irrespective of radiographic evidence of minor deformities.